It's a bottle opener, metric ruler, protractor, wire stripper, file, wrench, and more.
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Luckily, you don't need a protractor to identify which aspects are in your chart.
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All of his drawings are done by hand with a pencil, compass and protractor.
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Now, Windows Ink will include shortcuts for drawing including Stencils and a protractor tool.
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If I'd had a protractor on me, I would have calculated the exact number of degrees.
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How the Surface Dial can make you an expert draftsperson with a protractor tool (app is Drawboard).
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The shapes on this Bao Bao Issey Miyake clutch will bring you back to your protractor days.
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PROTRACTOR If there's one thing every adult knows, it's that we all use protractors on a daily basis.
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It can be used as a bottle and can opener, cord cutter, pry bar, ruler, protractor, screwdriver, and more.
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Who among us hasn't pulled out the protractor from time to time and wished for a few more degrees?
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Take Matisse's blue nudes, add a protractor, and you're approaching the style of San Francisco-based painter Richard Colman.
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I don't have time to take out a straightedge or a protractor to measure my dessert, sorry not sorry.
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Luckily, you don't need a protractor to measure an aspect — you just have to count the signs between two planets.
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Designed to be part of your everyday carry, it features a multi-fit screwdriver, protractor, ruler, can opener, and wire stripper.
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You must not smuggle in a protractor, or scarf down a sandwich, or post memes on Twitter that reveal test content.
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While Mr. Trump boasts about sexual assault and vows to suppress disobedient media, cable news pundits spend their time taking a protractor to Mrs.
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Tiffany & Co. has already been in the news for its luxury line of "everyday items, " which includes a $203,000 tin can and a $425 protractor.
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It features a multi-fit screwdriver, protractor, ruler, can opener, bottle opener, wire bender, and even a smoking pipe with a 7/16-inch bowl.
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The Suunto M-3 sets the standard for modern baseplate compasses with its quick and accurate steel needle, metric or imperial protractor measurements, and declination adjustment.
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In a recent episode of MacGyver, Angus (yes, that's his first name) finds his location in the desert using only a string, a protractor, and a watch.
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A number of architects and engineers use Drawboard, and the company is making use of the Dial to bring a virtual protractor and ruler to the app.
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"I think for me it was job satisfaction, finding something new, a new challenge," said Weatherford, leaning over a 2-by-4 with a protractor at an evening class.
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Using the Dial on the screen, we twisted it to select the Protractor tool, then turned to line up a ghost-like ruler to the angle we wanted to draw.
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There is a compartment for a lens and a space where the image can be projected, along with a protractor and a stick to measure the direction of the sun.
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A $600 sterling silver First Aid box, $425 protractor and a $227,22017 ball of yarn are just a few of the items included — all of which naturally sent the Internet into a frenzy.
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Damascus Gate (Stretch Variation I) originated in 1970 as part of Stella's acclaimed Protractor series, which combines abstract geometric compositions to create a mystifying visual experience that shifts radically when viewed from different perspectives.
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It all looks neat and tidy, especially Suburbicon, a planned community dotted with houses as square as Gardner's sack suits and yards that look as if they'd been landscaped using a compass and protractor.
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A wall-based work, "For Happiness" (1970, 130 by 99 by 75 inches as installed) ditches the square-and-trapezoid for a motif of interlaced circles strongly reminiscent of Stella's "Protractor" series of 1967–1970.
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The Suunto M-3 Leader is our top pick for your go-to compass because it has a practical Finnish design, a durable baseplate protractor, a quick and highly accurate steel needle, and good price tag.
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But the Triangle Offense struggled to find acceptance in its adopted city, where even the most astute basketball fans did not appreciate the suggestion that watching a Knicks game meant keeping a protractor close at hand.
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Microsoft is also improving its Windows Ink features, with quick access to pen settings, options to shrink and expand the protractor with a mouse, and improved performance of the Sketchpad app when lots of digital ink is used.
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Geekey Multi-Tool The Geekey has just about everything you need in a multi-tool: Scoring tip, a serrated edge, several wrenches, a screwdriver, a protractor, two rulers, a wire bender, a can opener, and even a pipe.
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In addition to the ball of yarn, which is made from handspun strands of textured sterling silver, the site is selling a tin coffee can priced at $1,000, an American walnut ruler for $450 and a protractor for $425.
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There's a suite of apps collected into what the company calls a toolbox (toolboxes are obviously essential for any self-respecting man) that includes a protractor, "pic hanging," a magnifier, and a compass for "exploring the fields," the company says.
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School supplies Potential Savings: $78.68 Yes, your kid will need school supplies at college (like notebooks, pencils, pens, maybe a protractor?); but, unless one of their professors has clearly stated what that stuff is, don't take a stab in the dark.
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A $75,000 sterling silver and 24k gold chess set from Tiffany is listed as an "Everyday Object" on the jewelry giant's website — alongside a $490 protractor and a $700 set of two ping pong paddles made from leather and walnut.
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It has a lot of integrated storage that's also accessible — the top not only has an integrated ruler, protractor, drill bit holder, socket tray, and magnetized screw tray, but the sides are magnetic as well so tools can be within easy reach.
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You can buy a Cards Against Humanity "back to school" starter pack for $29, and this special bundle includes a College Pack of "30 cards about learning and throwing up," a dorm poster, a useless protractor, a dental dam, a condom, and a laptop sticker.
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" (Luckily, her backpack will have a new geometry kit — a tin with compasses, a protractor, stencil shapes and metric tables.) Gianna prefers visual and performing arts, like painting and music, and hopes to one day go to the Fiorello H. LaGuardia High School of Music & Art and Performing Arts — "and then Juilliard!
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That's the age-old problem of squaring the circle, which means taking a circle of a certain area and trying to make a square of the exact same area using only a protractor and ruler, for reasons that your listeners know, most of your listeners know, that's impossible because pi is a wildly irrational number and so it can't actually be done that way.
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Whereas Noland's internal shapes underscore the painting's overall shape, and Stella's use of the protractor echoes the painting's shape and emphasizes the stability of the form and the flatness of the plane, Valledor's work from the 1960s deliberately establishes a tension between the two-dimensional and three-dimensional through its illusionism, while lines suggested by the contours of the directional shapes point to an unknown space — the reality beyond the painting's borders.
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To push out. Protractor pedis. The foot protractor muscle. Protrusile. Capable of being pushed out. Proximal.
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A half circle protractor marked in degrees (180°). A protractor is a measuring instrument, typically made of transparent plastic or metal, for measuring angles. Some protractors are simple half-discs. More advanced protractors, such as the bevel protractor, have one or two swinging arms, which can be used to help measure the angle.
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The Irregular Polygon canvases and Protractor series further extended the concept of the shaped canvas.
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A half-circle bevel protractor A bevel protractor is a graduated circular protractor with one pivoted arm; used for measuring or marking off angles. Sometimes Vernier scales are attached to give more precise readings. It has wide application in architectural and mechanical drawing, although its use is decreasing with the availability of modern drawing software or CAD. Universal bevel protractors are also used by toolmakers; as they measure angles by mechanical contact they are classed as mechanical protractors.
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Crescent lake is like a 180 degree protractor lake. Deep blue water with stairs on one side.
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The accuracy of this method depends on the accuracy of the protractor used to measure the angles.
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The M. protractor pterygoidei et quadrati is a cranial muscle that pulls the streptostylic quadrate dorsorostrally in birds.
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A turn can be divided in 100 centiturns or milliturns, with each milliturn corresponding to an angle of 0.36°, which can also be written as 21′ 36″. A protractor divided in centiturns is normally called a percentage protractor. Binary fractions of a turn are also used. Sailors have traditionally divided a turn into 32 compass points.
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Drafting machine attached to a drawing board. A drafting machine is a tool used in technical drawing, consisting of a pair of scales mounted to form a right angle on an articulated protractor head that allows an angular rotation. The protractor head (two scales and protractor mechanism) is able to move freely across the surface of the drawing board, sliding on two guides directly or indirectly anchored to the drawing board. These guides, which act separately, ensure the movement of the set in the horizontal or vertical direction of the drawing board, and can be locked independently of each other.
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Finally, the initial angle could be measured with a simple protractor. It is difficult to position and read the initial angle with high accuracy (or precision, for that matter; this measurement has poor reproducibility). Assume that the students consistently mis-position the protractor so that the angle reading is too small by, say, 5 degrees. Then all the initial angle measurements are biased by this amount.
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Barnes, p. 27 In 1928, Gunnar Tillander, a Swedish unemployed instrument maker and avid participant in the sport of orienteering, invented a new style of bearing compass. Dissatisfied with existing field compasses, which required a separate protractor in order to take bearings from a map, Tillander decided to incorporate both instruments into a single instrument. It combined a compass with a protractor built into the base.
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In 1933, the Swedish compass manufacturer Silva Sweden AB introduced a new compass design, the protractor compass. Until the introduction of the thumb compass, the protractor compass would remain the state of the art in the sport. By 1934, over a quarter million Swedes were actively participating in the sport, and orienteering had spread to Finland, Switzerland, the Soviet Union and Hungary. The nations of Finland, Norway and Sweden all established national championships.
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Katana tend to have much more niku than wakizashi. If it is required to measure the angles of cutting edges, it is achieved by using a goniometer, or blade edge protractor.
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He quantified handwriting by use of a microscope, caliper, pressure board, ruler, protractor and slow-motion pictures. Saudek also attempted to deal with graphological phenomena in terms acceptable to the experimental psychologists.
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The bevel protractor is used to establish and test angles to very close tolerances. It reads to 5 arcminutes (5′ or °) and can measure angles from 0° to 360°. The bevel protractor consists of a beam, a graduated dial and a blade which is connected to a swivel plate (with Vernier scale) by thumb nut and clamp. When the edges of the beam and blade are parallel, a small mark on the swivel plate coincides with the zero line on the graduated dial.
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Protractor scale in degrees and radians Most protractors measure angles in degrees (°). Radian-scale protractors measure angles in radians. Most protractors are divided into 180 equal parts. Some precision protractors further divide degrees into arcminutes.
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As the compass fill liquid is noncompressible under pressure, many ordinary liquid-filled compasses will operate accurately underwater to considerable depths. Many modern compasses incorporate a baseplate and protractor tool, and are referred to variously as "orienteering", "baseplate", "map compass" or "protractor" designs. This type of compass uses a separate magnetized needle inside a rotating capsule, an orienting "box" or gate for aligning the needle with magnetic north, a transparent base containing map orienting lines, and a bezel (outer dial) marked in degrees or other units of angular measurement.Johnson, p.
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These later developed into more elaborate designs, in the Irregular Polygon series (1967), for example. Later he began his Protractor Series (1971) of paintings, in which arcs, sometimes overlapping, within square borders are arranged side-by-side to produce full and half circles painted in rings of concentric color. Harran II, 1967, is an example of the Protractor Series. The Andre Emmerich Gallery, the Leo Castelli Gallery, the Richard Feigen Gallery, and the Park Place Gallery were important showcases for Color Field painting, shaped canvas painting and Lyrical Abstraction in New York City during the 1960s.
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T bevel with protractor and dividers In use A sliding T bevel, also known as a bevel gauge or false square is an adjustable gauge for setting and transferring angles. The handle is usually made of wood or plastic and is connected to a metal blade with a thumbscrew or wing nut. The blade pivots and can be locked at any angle by loosening or tightening the thumbscrew. The bevel can be used to duplicate an existing angle, or set to a desired angle by using it with any number of other measuring tools (such as a protractor, or framing square).
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His design featured a metal compass capsule containing a magnetic needle with orienting marks mounted into a transparent protractor baseplate with a lubber line (later called a direction of travel indicator). By rotating the capsule to align the needle with the orienting marks, the course bearing could be read at the lubber line. Moreover, by aligning the baseplate with a course drawn on a map – ignoring the needle – the compass could also function as a protractor. Tillander took his design to fellow orienteers Björn, Alvid, and Alvar Kjellström, who were selling basic compasses, and the four men modified Tillander's design.
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His interests were both wide-ranging and directed towards practical ends, and he adapted freely a number of the works he translated. He was a pioneer writer in English in several areas, and inventor of a standard classroom geometrical instrument, the protractor.
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Morphological synapomorphies are defined as such from Zaher et al. (2009): > Loss of the right carotid artery; intercostal arteries arising from the > dorsal aorta throughout the trunk at intervals of several body segments; > specialized expanded costal cartilages; presence of a muscle protractor > laryngeus; separate muscle protractor quadrati; separate spinalis and > semispinalis portion in the epaxial trunk; spinules or spines covering the > hemipenial body. Traditionally the name "Colubroidea" was used for this clade. This was seen problematic, however, as many of the same studies that support this clade of snakes also advocated for the various subfamilies of Colubridae to be reevaluated as proper families in their own right.
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Bureau of Labor Statistics. Occupational Outlook Handbook, 2008–09 Edition: Drafters dated: 18 December 2007. accessed: 24 September 2008. The traditional tools of the architect were the drawing board or drafting table, T-square and set squares, protractor, compasses, pencil, and drawing pens of different types.
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Bisect the line using a compass. Construct a line 90 degrees to the baseline using a compass. Using a protractor, draw a line from either landmark to intersect the 90 degree line off the baseline at the observed angle. This point is the origin of the circle of position.
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There can also be non-uniform graduations such as logarithmic or other scales such as seen on circular slide rules and graduated cylinders. A slide rule. This is an example of a mathematical instrument with graduated logarithmic and log-log scales. A half circle protractor graduated in degrees (180°).
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They also cannot form associations between objects or assign meaning to objects. C.K. makes many mistakes when trying to identify objects. For example, he called an abacus "skewers on a kebab" and a badminton racquet a "fencer's mask". A dart was a "feather duster" and a protractor was mistaken for a "cockpit".
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The Oxford Set of Mathematical Instruments is a set of instruments used by generations of school children in the United Kingdom and around the world in mathematics and geometry lessons. It includes two set squares, a 180° protractor, a 15 cm ruler, a metal compass, a 9 cm pencil, a pencil sharpener, an eraser and a 10mm stencil.
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"Statement for the Record, FBI Director Robert S. Mueller III, Joint Intelligence Committee Inquiry" , FAS.org, September 26, 2002. On September 9, the motel manager, cleaning the room that al-Shehhi had vacated, found a bag containing a German/English dictionary, a protractor, flight manuals and local airport listings. Another employee later reported finding a box cutter.
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It should never be forgotten that the theodolite/Total Station is a complex precision instrument that requires considerable training and regular practice if serious errors are not to be made through its use! # In drawing up, the survey co-ordinates must be calculated and not hand-drawn with scale rule and protractor to obtain Grade 5.
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In addition to the calculating machine, in his career Grillet invented a hygrometer (for which he was accused of plagiarism by another inventor); graphometers; drawing instrument set; protractor, set square, with plumb-bob. In 1690, the first textile-printing factory in England was established by a Frenchman named René Grillet, who took out a patent on the process.
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The gape is thought to have been similar to that of the extant genus Xenopeltis. However, the presence of strong m. protractor pterygoidei muscles inferred from the sagittal crest of Sanajeh indicates that it was able to manipulate prey in its mouth like modern macrostomatans. The intramandibular joint was able to flex greatly, which would allow for the consumption of larger prey.
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Killander continued to develop the rules and principles of the sport, and today is widely regarded throughout Scandinavia as the "Father of Orienteering". Protractor compass, first introduced in Sweden in 1933. The sport gained popularity with the development of more reliable compasses in the 1930s. The first international competition between orienteers of Sweden and Norway was held outside Oslo, Norway, in 1932.
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It is usually straightforward to tell which circle is relevant. After the observation is made, the angular reading can be transferred onto a nautical chart (or map) by means of a protractor instrument. The Practical Pilot: Coastal Navigation by Eye, Intuition, and Common Sense Leonard A. Eyges The origin of the circle can be found as follows. Draw a baseline connecting the two landmarks.
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The scale does not have to be straight; it can be curved, as on a protractor, but the graduations must be spaced at a constant length apart. Graduations can also be spaced at non-linear intervals, such as logarithmic, where the interval between them varies. Volumetric graduations, for instance on a measuring cup, can vary in scale due to the container's conical or abstract shape.
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The image can then be analyzed either by eye (with a protractor) or more often is measured using image analysis software. This type of measurement is referred to as a static contact angle measurement. The contact angle is affected not only by the surface chemistry but also by the surface roughness. The Young equation, which is the basis for the contact angle, assumes a homogeneous surface with no surface roughness.
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A T-square is a straightedge which uses the edge of the drawing board as a support. It is used with the drafting board to draw horizontal lines and to align other drawing instruments. Wooden, metal, or plastic triangles with 30° and 60° angles or with two 45° angles are used to speed drawing of lines at these commonly used angles. A continuously adjustable 0–90° protractor is also in use.
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Johnson, p. 112U.S. Army, Map Reading and Land Navigation, FM 21–26, Headquarters, Dept. of the Army, Washington, D.C. (7 May 1993), ch. 11, pp. 1–3: Any 'floating card' type compass with a straightedge or centerline axis can be used to read a map bearing by orienting the map to magnetic north using a drawn magnetic azimuth, but the process is far simpler with a protractor compass.
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He was accepted into the navy at the age of seventeen. As a midshipman cadet on the Iphigénie, he fought in the Americas, the West Indies and Senegal. He was promoted to Lieutenant in 1908. His mathematical skills led to his proposing a number of innovations in technical practices which were adopted by the navy, including his invention of an electrical selector and a navigational plotter protractor (which was named after him).
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The astrolabe was an early mathematical instrument used in astronomy and navigation. Instruments such as the astrolabe, the quadrant, and others were used to measure and accurately record the relative positions and movements of planets and other celestial objects. The sextant and other related instruments were essential for navigation at sea. Most instruments are used within the field of geometry, including the ruler, dividers, protractor, set square, compass, ellipsograph, T-square and opisometer.
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In 1932, G. D. Birkhoff created a set of four postulates of Euclidean geometry in the plane, sometimes referred to as Birkhoff's axioms. These postulates are all based on basic geometry that can be confirmed experimentally with a scale and protractor. Since the postulates build upon the real numbers, the approach is similar to a model-based introduction to Euclidean geometry. Birkhoff's axiom system was utilized in the secondary-school textbook by Birkhoff and Beatley.
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A screw base for a tripod or jacob staff (monopod) was often fitted as well.Rutstrum, pp. 47-55, 64-72 By the late 1960s many foresters had begun using more modern liquid-damped compass designs, including mirror-sight protractor models such as the Silva Type 15 Ranger' or the Suunto MC-1 (later, the MC-2). These compasses were fast to use, particularly along straight cruise lines and were sufficiently accurate for most forestry applications.
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The game is characterized by its contemporary, satirical Western world setting and its unconventional characters, enemies, and humor. Examples of the game's humor include untraditional enemies such as "New Age Retro Hippie" and "Unassuming Local Guy", snide dialogue, frequent puns, and fourth wall-breaking. The game also plays self-aware pranks on the player, such as the existence of the useless ruler and protractor items that players and enemies can unsuccessfully try to use nonetheless.
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Linstocks had serpentine jaws to grip the slow match and a sharp point at the base to stick in the ground. In emergencies gunners could use the spear blade as a weapon to defend the cannon. Like much early modern military equipment the linstock could have an additional function; 16th century examples had measurements in inches and a protractor engraved on the blade to allow the gun captain to check the angle.
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L-teconite mylonite formed from coarse-grained sandstone protolith, Glengarry Basin, Australia. This photograph illustrates a pronounced and prominent stretching lineation plunging steeply to the north, as a rake upon the main shear foliation parallel with the protractor. Stretching lineations may form in any faulting regime when conditions are such that rocks deform ductiley, including extensional, compressional, transpressional, and transtensional. Stretching lineations are formed by shearing of rocks during asymmetric deformation of a rock mass.
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Activprimary includes integrated tools to centrally manage additional interactive inputs including remote annotation and telepointing using wireless handheld Activslates and Activote Student Response Devices. Activprimary incorporates many of today's standard ‘whiteboard centric’ concepts, including the spotlight, revealer and zoom functions, a sound recorder, resource library and the interactive protractor, ruler and compass tools. A large selection of editable Restrictors, Properties and Actions can be used to enable the creation of interactive multimedia.
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In file shells that can swim by flapping their valves, a single, central adductor muscle occurs. These muscles are composed of two types of muscle fibres, striated muscle bundles for fast actions and smooth muscle bundles for maintaining a steady pull. The mantle suspender muscles attach the mantle to the shell and leave an arc-shaped scar on the inside of the valve, the pallial line. The paired pedal protractor and retractor muscles operate the animal's foot.
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Swanson Tool Co., Inc. describes the tool as a "Try Square, Miter Square, Protractor, Line Scriber, & Saw Guide" in one. The Swanson Speed Square comes with a pocket sized blue reference book that describes the tool's functions and contains charts for rafter lengths and widths from 3 to 40 feet. Among its basic uses are marking common, hip, valley and hip, or valley jack rafters, laying out stair stringers, determining and marking angles, and making square cuts on boards.
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In 1932, working with his two brothers and a machinist, Gunnar Tillander, Kjellström helped perfect a new type of compass for terrestrial navigation, featuring a liquid-damped magnetized needle housing compass and a protractor built into a transparent baseplate. In 1946, he moved to the United States, where he founded the U.S. operations of the Silva Company (later Silva, Inc.) in La Porte, Indiana. Two years later, he organized Silva Ltd. in Toronto, Canada for sales in Canada.
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A scale of chords may be used to set or read an angle in the absence of a protractor. To draw an angle, compasses describe an arc from origin with a radius taken from the 60 mark. The required angle is copied from the scale by the compasses, and an arc of this radius drawn from the sixty mark so it intersects the first arc. The line drawn from this point to the origin will be at the target angle.
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Unfortunately, Hilbert's system requires 21 axioms. Other systems have used fewer (but different) axioms. The most appealing of these, from the viewpoint of having the fewest axioms, is due to G.D. Birkhoff (1932) which has only four axioms. These four are: the Unique line assumption (which was called the Point-Line Postulate by Birkhoff), the Number line assumption, the Protractor postulate (to permit the measurement of angles) and an axiom that is equivalent to Playfair's axiom (or the parallel postulate).
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George David Birkhoff In 1932, G. D. Birkhoff created a set of four postulates of Euclidean geometry sometimes referred to as Birkhoff's axioms. These postulates are all based on basic geometry that can be experimentally verified with a scale and protractor. In a radical departure from the synthetic approach of Hilbert, Birkhoff was the first to build the foundations of geometry on the real number system. It is this powerful assumption that permits the small number of axioms in this system.
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Silva Sweden AB is an outdoors products company, most known for their high- grade compasses and other navigational equipment including GPS tools, mapping software, and altimeters for aircraft. They also offer a marine range. The company's founders - Gunnar Tillander, Alvar Kjellström, Alvid Kjellström, and Björn Kjellström - invented the hugely popular orienteering or protractor compass used around the world for outdoors navigation. Silva Sweden AB is a company created and based in Sweden that exports worldwide, and operates in numerous countries.
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Many of these atoms are directly moulded into the template, and fit together by pushing plastic stubs into small holes. The plastic grips well and makes bonds difficult to rotate, so that arbitrary torsion angles can be set and retain their value. The conformations of the backbone and side chains are determined by pre-computing the torsion angles and then adjusting the model with a protractor. The plastic is white and can be painted to distinguish between O and N atoms.
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At the Sector Control, a simple system was used to rapidly take a "fix". This consisted of a circular plotting board with a map on the top surface marked with the Ordnance Survey National Grid, and a series of compass angles on a protractor around the outer edge. The location of the three stations was represented by small holes drilled into the map. Weighed strings passed through the holes, and could be pulled up and across the map by the plotters.
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Dividing engine at the Museo Galileo in Florence. There has always been a need for accurate measuring instruments. Whether it is a linear device such as a ruler or vernier or a circular device such as a protractor, astrolabe, sextant, theodolite, or setting circles for astronomical telescopes, the desire for ever greater precision has always existed. For every improvement in the measuring instruments, such as better alidades or the introduction of telescopic sights, the need for more exact graduations immediately followed.
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Several terrestrial starlings, including those in the genus Sturnus, have adaptations of the skull and muscles that help with feeding by probing.Feare & Craig (1998) pp. 21–22. This adaptation is most strongly developed in the common starling (along with the spotless and white-cheeked starlings), where the protractor muscles responsible for opening the jaw are enlarged and the skull is narrow, allowing the eye to be moved forward to peer down the length of the bill.del Hoyo et al (2009) pp. 665–667.
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Usually, the compound rest has a protractor marked in its base (2b), enabling the operator to adjust its axis to precise angles. The slide rest (as the earliest forms of carriage were known) can be traced to the fifteenth century. In 1718 the tool-supporting slide rest with a set of gears was introduced by a Russian inventor Andrey Nartov and had limited usage in the Russian industry.Nartov's biography The first fully documented, all-metal slide rest lathe was invented by Jacques de Vaucanson around 1751.
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It contained also information about the recent research of William Gilbert on the Earth's magnetic field, which he included with help from Edward Wright and Henry Briggs. Wright had earlier supplied some of the innovative material for his writing on navigation in the Exercises. He had worked with William Barlow and others on the required scientific instruments; according to Hill Blundeville invented the protractor. In fact he described a semicircular instrument for measuring angles in 1589, in his Briefe Description of Universal Mappes and Cardes.
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They forage in fields, lawns and on open ground feeding on grains, fruit, insects, earthworms and molluscs usually taken from the ground. Like many other starlings, they often use a prying or gaping action, piercing soil and then opening apart the bill to dislodge hidden food. The strong protractor muscles allow them to part a mat of grass and their eyes are positioned to obtain a binocular view of the space between the parted beak. They often feed in grazing land or among cattle.
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Further original documents written by Agas survive among the Lansdowne and Additional manuscripts in the British Library. One is a letter dated 22 February 1593, addressed to Lord Burghley. It is entitled "A Noate for the Perfection of Lande Measure, and exact Plattinge of Cities, Castels, Honors, Lordshippes, Maners, and Landes of all sortes". In this account of the techniques of land-surveying, Agas writes of the "profitable staff" and the theodolite of some 20 inches in diameter, with a protractor of one foot at least.
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The superfluous ends are cut off, and it is then mounted into a sanding lathe, which smooths the bat to its desired weight. A drop of ink is placed about from the base of the handle, and follows the wood's grain. The path it follows is measured with a protractor using a magnifying glass, and those diverging by more than 3° are rejected. This "ink- dot test" is required by Major League Baseball to ensure bats used in MLB games are less prone to break.
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For example, as the amphiboles are double-chain silicates and the pyroxenes are single-chain silicates, the angle between their cleavage planes is different. The pyroxenes cleave in two directions at approximately 90°, whereas the amphiboles distinctively cleave in two directions separated by approximately 120° and 60°. The cleavage angles can be measured with a contact goniometer, which is similar to a protractor. Parting, sometimes called "false cleavage", is similar in appearance to cleavage but is instead produced by structural defects in the mineral, as opposed to systematic weakness.
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These later developed into more elaborate designs, in the Irregular Polygon series (67), for example. Also in the 1960s, Stella began to use a wider range of colors, typically arranged in straight or curved lines. Later he began his Protractor Series (71) of paintings, in which arcs, sometimes overlapping, within square borders are arranged side-by-side to produce full and half circles painted in rings of concentric color. These paintings are named after circular cities he had visited while in the Middle East earlier in the 1960s.
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The graphical method of designing an in-line slider-crank mechanism involves the usage of hand-drawn or computerized diagrams. These diagrams are drawn to scale in order for easy evaluation and successful design. Basic trigonometry, the practice of analyzing the relationship between triangle features in order to determine any unknown values, can be used with a graphical compass and protractor alongside these diagrams to determine the required stroke or link lengths. When the stroke of a mechanism needs to be calculated, first identify the ground level for the specified slider-crank mechanism.
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More recently, engineers and draftsmen use the drawing board for making and modifying drawings on paper with ink or pencil. Different drawing instruments (set square, protractor, etc.) are used on it to draw parallel, perpendicular or oblique lines. There are instruments for drawing circles, arcs, other curves and symbols too (compass, French curve, stencil, etc.). However, with the gradual introduction of computer aided drafting and design (CADD or CAD) in the last decades of the 20th century and the first of the 21st century, the drawing board is becoming less common.
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Combination square with standard head A combination square consisting of the rule, 45° holder, protractor and center square A combination square is a tool that serves several purposes in woodworking, stonemasonry, and metalworking. It is composed of a ruler and one or more interchangeable heads that may be affixed to it. The most common head is the standard or square head, which is used to lay out or check right and 45° angles. Invented in 1877 by Laroy S. Starrett, the combination square is a common tool in home workshops, construction jobsites, and metalworking.
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Other strategies for protracting inverted nipples include regularly stimulating the nipples to a protruding state, in an attempt to gradually loosen the nipple tissue. Some sex toys designed for nipple stimulation, such as suction cups or clamps, may also cause inverted nipples to protract or stay protracted longer. Some special devices are specifically designed to draw out inverted nipples, or a home-made nipple protractor can be constructed out of a 10-ml disposable syringe. These methods are often used in preparation for breastfeeding, which can sometimes cause inverted nipples to become protracted permanently.
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Tension lines in a plastic protractor seen under cross-polarized light The experimental procedure relies on the property of birefringence, as exhibited by certain transparent materials. Birefringence is a phenomenon in which a ray of light passing through a given material experiences two refractive indices. The property of birefringence (or double refraction) is observed in many optical crystals. Upon the application of stresses, photoelastic materials exhibit the property of birefringence, and the magnitude of the refractive indices at each point in the material is directly related to the state of stresses at that point.
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It consists of a metal tin embossed on the front with a drawing of Balliol College and the words 'THE HELIX OXFORD SET OF MATHEMATICAL INSTRUMENTS COMPLETE & ACCURATE' in white against a blue background. Inside the tin there are two set squares, a 180° protractor, a 15 cm ruler, a metal compass, a 9 cm pencil, a pencil sharpener, an eraser and a 10mm stencil. (In the 1970s a stencil for drawing chemical apparatus was included.) There is also a fact sheet and glossary of mathematical terms with a school timetable printed on the back. The export version also includes dividers.
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Francis Ronalds invented an instrument for recording angles in 1829 by modifying the octant. A disadvantage of reflecting instruments in surveying applications is that optics dictate that the mirror and index arm rotate through half the angular separation of the two objects. The angle thus needs to be read, noted and a protractor employed to draw the angle on a plan. Ronalds’ idea was to configure the index arm to rotate through twice the angle of the mirror, so that the arm could then be used to draw a line at the correct angle directly onto the drawing.
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An Abney level is an instrument used in surveying which consists of a fixed sighting tube, a movable spirit level that is connected to a pointing arm, and a protractor scale. The Abney level is an easy to use, relatively inexpensive, and when used correctly an accurate surveying tool. The Abney level was invented by Sir William de Wiveleslie Abney (1843–1920) who was a Royal Engineer, an English astronomer and chemist best known for his pioneering of colour photography and colour vision. Abney invented this instrument under the employment of the Royal School of Military Engineering in Chatham, England, in the 1870s.
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The juxtastapedial recess would have contained cranial nerves associated with the ear, while another opening located in front of the recess, the trigeminal foramen, housed cranial nerves associated with the jaws. The jaw joint of Sanajeh is located to the side of the posterior margin of the braincase, which is characteristic of basal snakes. A sagittal crest runs along the ventral surface of the braincase and served as an attachment for protractor pterygoidei muscles that moved the toothed bones of the palate. Articulations between the vertebrae are well developed in Sanajeh in a similar way to other madtsoiids and the genus Najash.
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Cadets learn how to navigate using a map and compass. Cadets learn to use Ordnance Survey maps plot and find six-figure grid references, calculate distances between points, and to recognise various conventional signs. The two-star map and compass course then introduces cadets to the Silva (Expedition 4) and Suunto (M-5N) lightweight protractor compasses. Cadets learn to use and plot grid and magnetic bearings to understand the three different types of north, to account for deviation of the grid-magnetic angle, to understand contour lines and more advanced conventional signs and the preparation of route cards.
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The Encyclopædia Britannica explicitly specifies 1930 as the year this tool was introduced, but an advertisement of "Memorie di architettura pratica" from 1913 places it twenty years before this date--at least in Italy. In the older design sets, the movement of the protractor head was assured by a pantograph system that could keep the head in the same angular position throughout its range of motion. The arms were balanced by a system of counterweights or springs. Typically, the machine is mounted on a drawing board with a hard and smooth surface, anchored to a base that allows its tilting and lifting.
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Posterior end of a male nematode, Gongylonema pulchrum, showing right spicule and gubernaculumphilometrid nematode - E and F represent the gubernaculum In nematodes, the gubernaculum is a hardened or sclerotized structure in the wall that guides the protrusion of the spicule during copulation. For example, in Caenorhabditis elegans, spicules serve to open and dilate the vagina of the hermaphrodite and the gubernaculum is a grooved plate in which the spicules move; the gubernaculum is controlled by two erector and two protractor muscles. The shape and size of the gubernaculum are often important characters for the systematics of nematodes.
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The objective of this course is to expose and prepare candidates before sending them to the Basic Commando Course held within the three branches of the MAF. This course lasts for two weeks in Teluk Batik, Lumut, Perak and overseen by instructors from PASKAL and STAR. During this course, trainees will be taught how to build up mental and physical strength and the esprit de corps for the upcoming Basic Commando Course. Trainees also exposed with basic small arms operation, map reading, compass and protractor reading, basic unarmed combat, swimming, long- distance running, navigation, survival effort, and basic marksman training.
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The similar dragon figures with the knotted bodies like those on the door-knockers are also seen on some coins of the Artuqids of Hısn Keyfa (Hasankeyf). An imaginative drawing of Artuklu Palace door was made by Michael Meinecke on the basis of Al-Jazari's sketch and the cited similar works. Al-Jazari's 1206-dated manuscript of "Al-Jami Bain Al-Ilm Wal-Amal Al-Nafi Fi Sinat'at Al- Hiyal" (The Book of Knowledge of Ingenious Mechanical Devices), also includes such other artifacts conceived specially for the Artuklu Palace as clocks, human and animal shaped toys, automatic jug and pools, water equipment, alarm clock and protractor.
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An Abney level and clinometer, is an instrument used in surveying which consists of a fixed sighting tube, a movable spirit level that is connected to a pointing arm, and a protractor scale. An internal mirror allows the user to see the bubble in the level while sighting a distant target. It can be used as a hand-held instrument or mounted on a Jacob's staff for more precise measurement, and it is small enough to carry in a coat pocket.Smaller Instruments and Appliances: The Abney Level and Clinometer, A Manual of the Principal Instruments used in American Engineering and Surveying, W. & L. E. Gurley, Troy, NY, 1891; page 219.
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Her first assignment in the South China Sea consisted of monitoring the movements of the Russian trawler Protractor and preventing that ship from intercepting Navy tactical communications. In addition to providing planeguard and screening services for the carriers and , she also served as a naval gunfire support (NGFS) ship and on the Tonkin Gulf search and rescue (SAR) station. In March and April, the destroyer fired over 7,000 5-inch rounds at shore targets; and, in company with the destroyer , the warship also rescued four downed pilots. She then visited Subic Bay and several other Far Eastern ports before steaming for home on 27 June.
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Chromatic polarization in a plastic protractor, caused by stress-induced birefringence. In 1815, Brewster reported that colors appear when a slice of isotropic material, placed between crossed polarizers, is mechanically stressed. Brewster himself immediately and correctly attributed this phenomenon to stress-induced birefringence — now known as photoelasticity. In a memoir read in September 1822, Fresnel announced that he had verified Brewster's diagnosis more directly, by compressing a combination of glass prisms so severely that one could actually see a double image through it. In his experiment, Fresnel lined up seven 45°-90°-45° prisms, short side to short side, with their 90° angles pointing in alternating directions.
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The accuracy of the arm type apparatus is better in the middle of the board, decreasing towards the edges, whereas a track machine has a constant accuracy over the whole board. The drawing head of a track-type drafting machine slides on bearings in a vertical rail, which in turn is moved along a horizontal, top-mounted rail. Both apparatus types have an adjustable drawing- head with rules attached to a protractor scale so that the angle of the rules may be adjusted.Alan Jefferis, David A. Madsen Architectural Drafting and Design (Cengage Learning, 2004) , pages 35-36 A drafting machine allows easy drawing of parallel lines over the paper.
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If a magnetic north bearing or compass bearing is desired, the compass must be adjusted by the amount of magnetic declination before using the bearing so that both map and compass are in agreement. In the given example, the large mountain in the second photo was selected as the target destination on the map. Some compasses allow the scale to be adjusted to compensate for the local magnetic declination; if adjusted correctly, the compass will give the true bearing instead of the magnetic bearing. The modern hand-held protractor compass always has an additional direction-of-travel (DOT) arrow or indicator inscribed on the baseplate.
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He became the chief advisor of hydraulics, mathematics, and astronomy for Kublai Khan.Kleeman. Guo began to construct astronomical observation devices. He has been credited with inventing the gnomon, the square table, the abridged or simplified armilla, and a water powered armillary sphere called the Ling Long Yi. The gnomon is used to measure the angle of the sun, determine the seasons, and is the basis of the sundial, but Guo Shoujing revised this device to become much more accurate and improved the ability to tell time more precisely. The square table was used to measure the azimuth of celestial bodies by the equal altitude method and could also be used as protractor.
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Spirule In control theory and stability theory, root locus analysis is a graphical method for examining how the roots of a system change with variation of a certain system parameter, commonly a gain within a feedback system. This is a technique used as a stability criterion in the field of classical control theory developed by Walter R. Evans which can determine stability of the system. The root locus plots the poles of the closed loop transfer function in the complex s-plane as a function of a gain parameter (see pole–zero plot). A graphical method that uses a special protractor called a "Spirule" was once used to determine angles and draw the root loci.
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Animation demonstrating the alternative use of a Schmidt net to produce a Lambert equal-area projection using a polar azimuth. The Schmidt net is not an appropriate grid for representing the Earth's northern or southern hemisphere (because the lines would not correspond to meridians or parallels in such a projection). However, it can be used as a scalar measuring device for projecting latitude-longitude points onto a blank circle of the same size, to produce a Lambert equal-area projection with the azimuth at the north or south pole. The intersection of the parallels with the outer circle can be used as a de facto protractor for plotting a point's longitude as the angle in the polar projection.
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The engraved portraits show Banfi Hunyades bearded and elderly, holding the glass vessel which he utilized in his mercurial experiments., The engraved portraits are all enclosed within a frame of alchemical quotations and biographical inscriptions on Banfi Hunyades, revealing his preoccupation with alchemy, mathematics and mercury as well as his birthplace of Nagybánya. Beneath the frame of the engravings is the monas sign, as described by John Dee in his Monas Hieroglyphica and each engraving is flanked by scientific instruments and alchemical symbols. The Hollar engravings with compass and protractor on the left and retort, alembic and curcubit on the right; the Marshall engraving supported by figures of Sol, Luna and Mercury.
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In 1813 he married Alice Pierie of Philadelphia, and they had six children. Otis patented the perspective protractor in 1815. With Philadelphia publisher Joseph Delaplaine he began painting portraits for “Delaplaine's Repository of the Lives and Portraits of Distinguished American Characters.” In 1816 Otis painted portraits of Thomas Jefferson, James Madison and Dolley Madison. In total, Otis painted twenty-four portraits for the “Repository,” though only the Jefferson portrait was published before the end of the project in 1818. Some of the remaining portraits were exhibited in Delaplaine’s Philadelphia gallery, which became part of Rubens Peale's New York museum. Otis produced the first American lithograph, which was published in the July 1819 issue of Analectic Magazine, together with an article on the lithographic process.Albert H. Smyth.
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What happens to the estimate of g if these biases occur in various combinations? One reason for exploring these questions is that the experimental design, in the sense of what equipment and procedure is to be used (not the statistical sense; that is addressed later), depends on the relative effect of systematic errors in the measured quantities. If a 5-degree bias in the initial angle would cause an unacceptable change in the estimate of g, then perhaps a more elaborate, and accurate, method needs to be devised for this measurement. On the other hand, if it can be shown, before the experiment is conducted, that this angle has a negligible effect on g, then using the protractor is acceptable.
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The term transit theodolite, or transit for short, refers to a type of theodolite where the telescope is short enough to rotate in a full circle on its horizontal axis as well as around its vertical axis. It features a vertical circle which is graduated through the full 360 degrees and a telescope that could "flip over" ("transit the scope"). By reversing the telescope and at the same time rotating the instrument through 180 degrees about the vertical axis, the instrument can be used in 'plate-left' or 'plate- right' modes ('plate' refers to the vertical protractor circle). By measuring the same horizontal and vertical angles in these two modes and then averaging the results, centering and collimating errors in the instrument can be eliminated.
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Kjernsmo, Kjetil, How to use a Compass, retrieved 8 April 2012 Many marine compasses designed for use on boats with constantly shifting angles use dampening fluids such as isopar M or isopar L to limit the rapid fluctuation and direction of the needle. The military forces of a few nations, notably the United States Army, continue to issue field compasses with magnetized compass dials or cards instead of needles. A magnetic card compass is usually equipped with an optical, lensatic, or prismatic sight, which allows the user to read the bearing or azimuth off the compass card while simultaneously aligning the compass with the objective (see photo). Magnetic card compass designs normally require a separate protractor tool in order to take bearings directly from a map.
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Chatterjee argues that the temporal region displays a streptostylic quadrate with orbital process for attachment of the M. protractor pterygoidei et quadrati, with associated confluence of the orbits with the temporal fenestrae, thus facilitating prokinesis. He further asserts that the braincase of Protoavis bears a number of characters seen in Ornithurae, including the structure of the otic capsule, the widespread pneumatization of the braincase elements, a full complement of tympanic recesses, and the presence of an epiotic. Of this material, only the quadrate and orbital roof, in addition to limited portions of the braincase are preserved with enough fidelity to permit any definitive interpretation. The quadrates of TTU P 9200 and TTU P 9201 are not particularly alike; a fact not easily explained away if the material is conspecific, as Chatterjee insists.
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To take a map bearing or true bearing (a bearing taken in reference to true, not magnetic north) to a destination with a protractor compass, the edge of the compass is placed on the map so that it connects the current location with the desired destination (some sources recommend physically drawing a line). The orienting lines in the base of the compass dial are then rotated to align with actual or true north by aligning them with a marked line of longitude (or the vertical margin of the map), ignoring the compass needle entirely.Johnson, pp. 134–135 The resulting true bearing or map bearing may then be read at the degree indicator or direction- of-travel (DOT) line, which may be followed as an azimuth (course) to the destination.
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Thus, the realization of a drawing can be achieved in the most convenient way on a working surface that can be tilted at any angle from horizontal to vertical. There are special versions for A0 double-sized boards, to make large drawings, or copying-boards with background illumination, which have all that is necessary to provide specific support. With the drafting machine one can perform a series of drawing operations that otherwise could only be achieved with a much more complex use of the classic ruler square and protractor, as, for example, drawing parallel lines, orthogonal lines, inclined lines according to a preset angle, measurement of angles, etc. With the development of computer-aided design (CAD), the use of drafting machines, especially in the professional sector, has drastically declined, supplanted first by pen plotters, and then by large-format inkjet printers.
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Mathomat is a trademark used for a plastic stencil developed in Australia by Craig Young in 1969, who originally worked as an engineering tradesperson in the Government Aircraft Factories (GAF) in Melbourne before retraining and working as head of mathematics in a secondary school in Melbourne. Young designed Mathomat to address what he perceived as limitations of traditional mathematics drawing sets in classrooms, mainly caused by students losing parts of the sets. The Mathomat stencil has a large number of geometric shapes stencils combined with the functions of a technical drawing set (rulers, set squares, protractor and circles stencils to replace a compass). The template made use polycarbonate – a new type of thermoplastic polymer when Mathomat first came out – which was strong and transparent enough to allow for a large number of stencil shapes to be included in its design without breaking or tearing.
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Mathematicians thus accepted his belief that geometry should use no tools but compass and straightedge – never measuring instruments such as a marked ruler or a protractor, because these were a workman's tools, not worthy of a scholar. This dictum led to a deep study of possible compass and straightedge constructions, and three classic construction problems: how to use these tools to trisect an angle, to construct a cube twice the volume of a given cube, and to construct a square equal in area to a given circle. The proofs of the impossibility of these constructions, finally achieved in the 19th century, led to important principles regarding the deep structure of the real number system. Aristotle (384-322 BC), Plato's greatest pupil, wrote a treatise on methods of reasoning used in deductive proofs (see Logic) which was not substantially improved upon until the 19th century.
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The United States Navy Bureau of Ships contracted on several occasions for orders of hand held Stadimeters starting shortly after its development in the late 1890s. By the early 1900s it along with the sextant, spyglass, maneuvering board, parallel motion protractor and other navigation tools were part of the standard gear for the navigation officer aboard US warships. During World War II the Mark 5 version was developed to function more like a sextant with a single pivot arm replacing the linear screw worm drive which set the height of the object. The primary benefit of this development was that multiple objects of differing heights could be measured much faster since it removed the slow moving worm drive which would need to be adjusted for each object height before a sight was taken with a much faster adjustable arc arm to set the objects height.
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Min Green and Ed Slaterton, a high school junior and senior basketball jock, respectively, ended their relationship, which lasted from October 5 to November 12. The story takes the form of a letter, with Min writing to Ed explaining why they had broken up. The letter accompanies a box full of minor objects that narrates the progress of their relationship, and is returned to Ed at the end of the letter. The box includes two bottle caps, a movie ticket, a lobby ticket, a box of matches, a pinhole camera, a folded note, a rubber band, a high school pennant, a toy truck, a recipe book (Real Recipes from Tinseltown), Pensieri, a fictional liquor (and Italian for "thoughts"), a protractor, a file, a concert ticket, an egg cuber ("makes a square egg"), a polaroid, a comb from a motel room, a pair of ugly earrings, and several other items collected over the course of their relationship.
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Boissy saluting Féraud's head by Alexandre-Évariste Fragonard (1831) He was protractor of the committee which drew up the Constitution of the Year III which established the French Directory; his report shows apprehension of a return of the Reign of Terror, and presents reactionary measures as precautions against the re-establishment of "tyranny and anarchy". This report, the proposal that he made (27 August 1795) to lessen the severity of the revolutionary laws, and the eulogies he received from several Paris sections suspected of Royalism, resulted in his being obliged to justify himself (15 October 1795). As a member of the Council of Five Hundred, Boissy d'Anglas became more and more suspected of Royalism himself. He presented a measure in favour of full liberty for the press, which at that time was almost unanimously reactionary, protested against the outlawry of returned émigrés, spoke in favour of the deported priests and attacked the Directory.
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About 88% of amphibian species are classified in the order Anura. These include over 7,100 species in 55 families, of which the Craugastoridae (850 spp.), Hylidae (724 spp.), Microhylidae (688 spp.), and Bufonidae (621 spp.) are the richest in species. European fire-bellied toad (Bombina bombina) The Anura include all modern frogs and any fossil species that fit within the anuran definition. The characteristics of anuran adults include: 9 or fewer presacral vertebrae, the presence of a urostyle formed of fused vertebrae, no tail, a long and forward- sloping ilium, shorter fore limbs than hind limbs, radius and ulna fused, tibia and fibula fused, elongated ankle bones, absence of a prefrontal bone, presence of a hyoid plate, a lower jaw without teeth (with the exception of Gastrotheca guentheri) consisting of three pairs of bones (angulosplenial, dentary, and mentomeckelian, with the last pair being absent in Pipoidea),Duellman, William E. an unsupported tongue, lymph spaces underneath the skin, and a muscle, the protractor lentis, attached to the lens of the eye.
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Silva of Sweden AB has manufactured a wide variety of portable compasses for recreational, hiking, scientific, and marine uses over the years, including simple protractor or baseplate compasses like the Field, Expedition 3 (formerly the Ranger 3), and Expedition 4 to more sophisticated sighting compasses such as the Expedition Model 54 and the Silva SightMaster line of surveying compasses. Silva's Expedition 15T, Expedition TDCL, and Expedition S are modernized versions of the original Type 15 Silva Ranger, itself a development of the Model 1939 that incorporated a liquid-damped capsule with a sighting mirror that doubled as a protective cover. In the mid-1990s, Silva introduced the Model 25TDCL and TDCLE Ranger compass, rebranded for North American sale as the (Brunton) Nexus 225 or 25TDCL/TDCLE Pro Elite. The 25TDCL and 25TDCLE Pro Elite or Nexus Type 225 remains, technologically speaking, the high-water mark of the Silva Ranger compass design; Silva of Sweden never made a more advanced or better-equipped Ranger, and has since discontinued the Type 25/Type 225 entirely.Features of the Silva Type 25 Compass, Silva.se, retrieved 10 April 1997: Each 25TDCLE/Type 225 compass was guaranteed to function accurately at temperatures from -40° F to +140° F, and was individually tested for reliability.
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