Mathematics, mechanics, heatAmerican School of Correspondence, 1903 - Engineering |
From inside the book
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Page 76
... equilateral and regular . It is also similar to A F ( easily proved from Theorem LVI ) ; and as its sides are tangents it is circumscribed about the circle . SECTION 2 . TRIGONOMETRY . DEFINITIONS . 1. Geometry shows 76 GEOMETRY .
... equilateral and regular . It is also similar to A F ( easily proved from Theorem LVI ) ; and as its sides are tangents it is circumscribed about the circle . SECTION 2 . TRIGONOMETRY . DEFINITIONS . 1. Geometry shows 76 GEOMETRY .
Page 3
... shows how to construct a triangle and how to find the unknown parts by actual measurement . Trigonometry shows how to compute the unknown parts from the numerical values of the known parts . In any triangle there are six parts : three ...
... shows how to construct a triangle and how to find the unknown parts by actual measurement . Trigonometry shows how to compute the unknown parts from the numerical values of the known parts . In any triangle there are six parts : three ...
Page 7
... shows marks at 10 degrees , but a regular compass has the one de- gree marks as well . The smaller compasses often do not have degree marks , but simply the points . B represents the edge of the compass bowl , which swings in gimbals ...
... shows marks at 10 degrees , but a regular compass has the one de- gree marks as well . The smaller compasses often do not have degree marks , but simply the points . B represents the edge of the compass bowl , which swings in gimbals ...
Page 8
... shows a compass in a box , and Fig . 5 an improved form of compass card . The circular card is divided into degrees and points to rep- resent every different point of the horizon . Every circle being divided into 360 degrees , and there ...
... shows a compass in a box , and Fig . 5 an improved form of compass card . The circular card is divided into degrees and points to rep- resent every different point of the horizon . Every circle being divided into 360 degrees , and there ...
Page 9
... shows the helmsman the direction of the ship's head . If , for ex- ample , he is told to steer SSE , he puts the helm over so as to bring the lubber line opposite SSE on the compass card . Magnetism . Just what this is , is not known ...
... shows the helmsman the direction of the ship's head . If , for ex- ample , he is told to steer SSE , he puts the helm over so as to bring the lubber line opposite SSE on the compass card . Magnetism . Just what this is , is not known ...
Common terms and phrases
acting altitude amount beam body called center of gravity chart circle coefficient compass Corollary course cubic dead reckoning decimal degrees diameter direction distance divided earth elastic elastic limit energy equal equation EXAMPLES FOR PRACTICE factor of safety feet per second foot foot-pounds force formula friction gear given greater Greenwich mean heat Hence hour angle hypothenuse kinetic latitude length liquid load logarithm longitude magnetism mantissa mercury meridian miles minute molecules motion move multiplied Nautical orifice parallel parallelogram pendulum perpendicular plane polygon position poundal pounds per square pressure proportional pulley quadrant radius resultant revolutions revolutions per minute right angles right triangles sextant shaft ship ship's side specific gravity square inch straight line stress substance surface temperature Theorem tion triangles A B C unit velocity vertical vessel weight wheel wrought iron
Popular passages
Page 70 - PROBLEM. To inscribe a circle in a given triangle. Let ABC be the given triangle : it is required to inscribe a circle in the triangle ABC.
Page 39 - A circle is a plane figure bounded by a curved line, called the circumference, every point of which is equally distant from a point within called the center.
Page 32 - If the diagonals of a quadrilateral bisect each other, the figure is a parallelogram.
Page 6 - Every body continues in its state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by forces impressed upon it.
Page 7 - If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line.
Page 54 - If two polygons are composed of the same number of triangles, similar each to each and similarly placed, the polygons are similar.
Page 21 - If two triangles have two sides, and the included angle of the one equal to two sides and the included angle of the other, each to each, the two triangles are equal in all respects.
Page 31 - If two sides of a quadrilateral are equal and parallel, the figure is a parallelogram.
Page 60 - The area of a triangle is equal to one-half the product of its base and altitude.
Page 46 - An angle formed by a tangent and a chord is measured by onehalf the intercepted arc.