Mechanics, Or, The Doctrine of Motion ..., Volume 6 |
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Common terms and phrases
ACBL againſt alfo alſo atmoſphere axle bafe baſe beam becauſe bight bodies defcend breadth cafes cannon pinion center of gravity cofine confequently defcending thro denfity direction diſtance draw equal equilibrio falling thro fame thing fcales fcrew fecond feveral fhew fide fimilar fimple fince fixed fluid fmall folid fome force acting fpring fquare roots friction ftone ftrefs ftrength ftrong fuch fufpended fuftain fuppofe fupport furface given Hence hight horizon inches inclined plane increaſed interfection lefs length lever likewife machine motion moving muft muſt parallel pendulum perp perpendicular pinion pofition preffure prefs Prop proportion pulley quantity of matter quickfilver raiſed reciprocally refiftance reft rope S.AED S.AEF S.CDE S.CDH SCHOLIUM ſmall ſpace space defcribed ſpecific gravity ſquare ſtreſs teeth tenfion thefe theſe turn round uſe veffel velocity vibrations weight Whence whofe whoſe
Popular passages
Page 66 - As the distance between the body to be raised, or balanced, and the fulcrum, or prop, is to the distance between the prop and the point where the power is applied, so is the power to the weight...
Page 116 - For the preffure is as the weight, and the weight is as the height of a column of the fluid. PROP. PROP. LXV. Flg...
Page 118 - Now, by prop. 54, the pressure of the fluid against the hole B, by which the • motion is generated, is equal to the weight of the column of fluid above it, that is the column whose height is AB or a, and base the area of the hole B.
Page 10 - THE SAME THINGS BEING SUPPOSED, AND THAT THE MOTION BEFORE INCIDENCE IS SWIFTER THAN AFTERWARDS; I SAY, THAT IF THE LINE OF INCIDENCE BE INCLINED CONTINUALLY, THE BODY WILL BE AT LAST REFLECTED, AND THE ANGLE OF REFLEXION WILL BE EQUAL TO THE ANGLE OF INCIDENCE. For conceive the body...
Page 25 - ... half the length of the pendulum as the circumference of a circle is to its diameter.
Page 134 - If this was not fo, no machine, whofe ufe or actions depends upon the preflure of the atmofphere, could do its bufinefs. Thus the weight of the atmofphere prefles upon the furface of water, and forces it up into the barrel of a pump, without any air getting in, which would fpoil its working. Likewife the preflure of the atmofphere keeps mercury fufpended at fuch a...