Natural Philosophy, in Easy Lessons |
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1st second 32 feet angle angle of incidence Archimedes ascend atmosphere ball barometer bismuth body boiling point bottom called carbonic acid cause centre collision colour column condensation crystal cubic inches cylinder direction disk distance earth elastic collision elastic force equal exactly example expands experiment fall feet a second filled flask former fundamental note gases Geyser glass tube greater hence holes immersed instrument iron lamp lamp-black latent heat latter length LESSON light liquid mass melted mercury metal momentum motion moving natural philosophy number of vibrations observed ounces particles pendulum piston placed plate portion possess pound of water pound weight pressure produced quantity of heat rays rectangle reflected refraction sink solid sound space passed specific gravity specific heat sphere square inch steam string substance suppose surface temperature thermometer tion upwards vapour velocity of sound vessel waves weight
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Page 82 - Timon from the world I flee, — My wreck of wealth — sweet dreams of thee! Or, if I join the careless crowd, Where laughter peals, and mirth grows loud, Even in my hours of revelry I...
Page 140 - Caraccas ; the air was clear and the firmament cloudless. It was Green Thursday, and a regiment of troops of the line stood under arms in the barracks of the quarter San Carlos ready to join in the procession. The people streamed to the churches. A loud subterranean thunder was heard, and immediately afterwards followed...
Page 35 - ... of the first ; and the space of the 6th second eleven times that of the first. Hence, we arrive at the important conclusion that the spaces described in the succeeding seconds increase in the ratio of the odd numbers 1, 3, 5, 7, 9, 1 1, 13, &c. &c. Fig. 9. 15. We shall now consider the spaces passed over, not in the seconds taken singly, but in any number of them taken together. If the space passed over in the first second be = 1 then the space in the 2nd second will be = 1+3 = 4 „ 3 „ =...
Page 128 - J parts in 100) on being heated from the freezing to the boiling point of water, viz.9 180°, — their bulk being therefore doubled from the same standard point by about 500°. This general truth holds, not only with respect to the more permanent airs or gases, but also with respect to all steams or...
Page 57 - The effect of gravity is therefore almost wholly counterbalanced by the buoyant force of that fluid ; for the weight of a mass of water equal in bulk to the body itself, is the exact measure of this buoyant force. If this weight were precisely the same as that of the fish, the animal would be able to remain suspended in any part of the fluid without the necessity of employing any voluntary motion or exertion for that purpose ; but as the body of a fish...