The Universal Preceptor: Being a General Grammar of Arts, Sciences, and Useful Knowledge ... |
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Страница 261
Every visible object is of a visible size , proportioned to the angle which it makes
to the eye ; and that angle is also always in the inverse proportion of the distance
, which the eye is from the object . Obs . - To prove this , try a simple microscope ...
Every visible object is of a visible size , proportioned to the angle which it makes
to the eye ; and that angle is also always in the inverse proportion of the distance
, which the eye is from the object . Obs . - To prove this , try a simple microscope ...
Страница 262
The hole , ly limiting the number of raya from the object , will enable you'll #ce the
oljert as above , and prove that the give to the angle , or inversely as the distance
. Every objart the Jength or breadth , is , in sine , in the inverse proportion of itu ...
The hole , ly limiting the number of raya from the object , will enable you'll #ce the
oljert as above , and prove that the give to the angle , or inversely as the distance
. Every objart the Jength or breadth , is , in sine , in the inverse proportion of itu ...
Страница 263
image of it is produced by the object - glass of a telescope , and I ain enabled by
the convexity of an eye - glass to view that image so closely , as that the visual
angle is increased to 40 degrees , the effect is the same as if I had advanced
within ...
image of it is produced by the object - glass of a telescope , and I ain enabled by
the convexity of an eye - glass to view that image so closely , as that the visual
angle is increased to 40 degrees , the effect is the same as if I had advanced
within ...
Страница 321
He may then proceed to inanimate objects , as flowers , fruits , trees , and houses
, giving each its proper light and shade ... a knowledge of perspective is required
; and this is nothing more , than the art of representing every object in its proper ...
He may then proceed to inanimate objects , as flowers , fruits , trees , and houses
, giving each its proper light and shade ... a knowledge of perspective is required
; and this is nothing more , than the art of representing every object in its proper ...
Страница 351
WOS 303 What is the object of trigonometry ! 303 What is the hypothen use and
right angle of a triangle 304 What is the proportion between the diameter and the
cira cunference of a circle , and what part to the Fronch Intaolo a metus of the ...
WOS 303 What is the object of trigonometry ! 303 What is the hypothen use and
right angle of a triangle 304 What is the proportion between the diameter and the
cira cunference of a circle , and what part to the Fronch Intaolo a metus of the ...
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Чести термини и фразе
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Страница 95 - twere not absurd To doubt if beams, set out at Nature's birth, Are yet arriv'd at this so foreign world, Though nothing half so rapid as their flight. An eye of awe and wonder let me roll, And roll for ever.
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Страница 267 - Tis still as hard, if we this scheme believe, The cause of light's swift progress to conceive. With thought from prepossession free, reflect On solar rays, as they the sight respect. The beams of light had been in vain display'd, Had not the eye been fit for vision made: In vain the author had the eye prepared "With so much skill, had not the light appear'd.
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Библиографски подаци
| Наслов | The Universal Preceptor: Being a General Grammar of Arts, Sciences, and Useful Knowledge ... |
| Аутор | Sir Richard Phillips |
| Издање | 12 |
| Издавач | J. M'Gowan for Sir R. Phillips, 1820 |
| Оригинал из | Јавна библиотека града Њујорка |
| Дигитализовано | 7 окт 2005 |
| Дужина | 364 страница |
| Извоз навода | BiBTeX EndNote RefMan |