Iconographic Encyclopaedia of Science, Literature, and Art, Band 1R. Garrigue, 1851 |
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Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
acid alidade altitude amount aphelion apparatus astronomical atmosphere attached axis basalt base body called carbonate carbonic acid celestial sphere centre chlorite circle circumference clay color combination cone consequently consists constructed copper crystals curved cylinder determined diameter diopters direction disk distance divided double stars earth eclipse ecliptic edge elevation ellipse entirely equal equator exhibits feet feldspar figure glass gneiss greater heat height inclosed inferior conjunction instrument intersection iron latter length limestone liquid magnetic marl masses means measured mercury meridian metal mineral moon motion mountain needle object observed obtained occur octahedron opposite orbit oxyde parallax parallel passes perpendicular plane plate pole porphyry position prism produced rays refraction represented right angles right ascension rocks rotation sandstone screw shadow side sight slate sometimes spherical straight line strata supposed surface telescope temperature trachyte triangle tube upper Uranus vapor velocity Venus vessel wire
Beliebte Passagen
Seite 9 - The square described on the hypothenuse of a rightangled triangle is equal to the sum of the squares described on the other two sides.
Seite 368 - From the foregoing statements it may be safely inferred that " the mean height of the barometer at the level of the sea being the same in every part of the globe...
Seite 9 - If two triangles have two sides of the one equal to two sides of the...
Seite 20 - The area of a spherical triangle is proportional to the excess of the sum of its angles over two right angles (called the spherical excess).
Seite 9 - Each side about the right angle is a mean proportional between the whole hypotenuse and the adjacent segment.
Seite 188 - W-TJT, or the force is to the weight as the height of the plane to its base.
Seite 68 - Hence a straight line drawn from the vertex of an isosceles triangle, to the middle of the base, is perpendicular to that base, and divides the vertical angle into two equal parts.
Seite 87 - The geographical longitude of a place is the arc of the equator intercepted between the...
Seite 9 - The measure of each angle of an equilateral triangle is 60°. 11. a. A triangle that has a right angle is called a right triangle. b. In a right triangle, the two acute angles are complementary. c.
Seite 206 - To find the time in which pendulums of different lengths would vibrate, that which vibrates seconds being 39.2 inches. The time of the vibrations of pendulums are to each other, as the square roots of their lengths ; or, their lengths are as the squares of their times of vibrations. RULE. As the square of one second is to the square...