The Young Trigonometer's Compleat Guide: Being the Mystery and Rationale of Plane Trigonometry Made Clear and Easy, Band 1J. Noon, 1736 - 328 Seiten |
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Seite xi
... Rays of Light reflected from Spheri- cal Surfaces either Convex or Concave ; and the ap- parent or visible Place of ... Ray thro ' the contiguous Mediums of Wa- ter , Glafs , and Air . VI . A Theorem of Catoptrics demonftrated . Idem VII ...
... Rays of Light reflected from Spheri- cal Surfaces either Convex or Concave ; and the ap- parent or visible Place of ... Ray thro ' the contiguous Mediums of Wa- ter , Glafs , and Air . VI . A Theorem of Catoptrics demonftrated . Idem VII ...
Seite xii
... Rays refracted from a convex Surface in a Body of Glass . 315 X. To calculate the Focal Diftance of Rays falling pa rallel on the Plain Surface of a Plano - convex Lenfe . XI . of the Nature of a Plano - concave Lenfe . 317 XII . The ...
... Rays refracted from a convex Surface in a Body of Glass . 315 X. To calculate the Focal Diftance of Rays falling pa rallel on the Plain Surface of a Plano - convex Lenfe . XI . of the Nature of a Plano - concave Lenfe . 317 XII . The ...
Seite 174
... Rays fall perpendicularly and proceeds to the Center C ; and B`another Place on which at the fame Time the Rays fall obliquely ; and let the Di- stance BD be known by Menfuration ; when the Ob- fervation is made , erect a Style or Staff ...
... Rays fall perpendicularly and proceeds to the Center C ; and B`another Place on which at the fame Time the Rays fall obliquely ; and let the Di- stance BD be known by Menfuration ; when the Ob- fervation is made , erect a Style or Staff ...
Seite 180
... Ray of Light touching the Earth at D , and paffing to the upper Region of the Atmosphere , is there reflected by a Particle of Air at B , in the Line AB , which also toucheth the Earth ... Rays fall perpendicular in 180 Plain Trigonometry ,
... Ray of Light touching the Earth at D , and paffing to the upper Region of the Atmosphere , is there reflected by a Particle of Air at B , in the Line AB , which also toucheth the Earth ... Rays fall perpendicular in 180 Plain Trigonometry ,
Seite 181
... Rays fall perpendicular as BH , and when in an Horizontal Direction as AB . For the Light and Heat at H will be to that at A in the Reciprocal Proportion of AB to BH . But the Line BH is 44 , and by the fame Means the Line AB is found ...
... Rays fall perpendicular as BH , and when in an Horizontal Direction as AB . For the Light and Heat at H will be to that at A in the Reciprocal Proportion of AB to BH . But the Line BH is 44 , and by the fame Means the Line AB is found ...
Häufige Begriffe und Wortgruppen
alfo alſo Altitude Analogy Angle of Incidence Arch Axiom Bafe Baſe becauſe Body Cafe II Cathetus Center Co-Sine Compaffes confequently Conftruction Corol Courſe defcribe Degrees Demonftration Diameter Difference Diſtance Divifions eafy Earth Eclipfe Elevation equal faid fame fecond fhall fhew find the Side firft firſt Flanked Angle folved fome fuch fufficient fuppofe given greateſt Height Hence Hypothenufe Inclination inclined Plane Inftrument Interfection laft Latitude leaft Line of Numbers Logarithms meaſure Meridian Method Miles moft Moon moſt Motion muft muſt obferve Oblique Triangles oppofite Parallax Parallel Perpen Plain Triangles Plain Trigonometry Plane Pofition Point Propofition Purpoſe Quadrant Quantity Radius Rays Reafon refolved Refraction Right Triangles Right-angled Triangle Right-line Scheme Secants Semidiameter Shadow Side BC Sine Sliding Rule Square Tabular Tangent thefe Theor Theorem thereof theſe thofe thoſe thro Triangle ABC True Anomaly uſeful whence whofe
Beliebte Passagen
Seite 35 - As the base or sum of the segments Is to the sum of the other two sides, So is the difference of those sides To the difference of the segments of the base.
Seite 300 - IV. Refraction out of the rarer Medium into the denser, is made towards the Perpendicular; that is, so that the Angle of Refraction be less than the Angle of Incidence. AX. V. The Sine of Incidence is either accurately or very nearly in a given Ratio to the Sine of Refraction.
Seite 8 - ... things equal to one and the fame thing are equal to one another...
Seite 301 - Having given the radius of an arc of any colour in the secondary rainbow, find the ratio of the sine of incidence to the sine of refraction when rays of that colour pass out of air into water.
Seite 31 - Since any arc is less than the tangent, and greater than its sine, and the sine and tangent of a very small arc are nearly equal; it follows, that the arc will...
Seite 69 - ... degrees at the bottom of the page, and the minutes in the right-hand column.
Seite 26 - TT is manifeft that CB is the Sine of the Arc CD, •*• and AB the Cofine thereof; but the Arc CD is the Meafure of the Angle A, and the Complement of the Meafure of the Angle C. Moreover, if AB, in the Figure to...
Seite 25 - The radius is a mean proportional between the tangent and cotangent of any angle ABC.
Seite 34 - So is the Tangent of half the Sum of the oppofite Angles to the Tangent of half their Difference.
Seite 255 - The change of motion is always proportional to the moving force impressed, and is always made according to the right line, in .which that force is impressed.