Natural Philosophy for Beginners: With Numerous Examples, Part 1 |
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Natural Philosophy for Beginners: With Numerous Examples, Part 1 Isaac Todhunter No preview available - 2016 |
Common terms and phrases
16 feet action atmosphere attraction axis Axle balance ball barometer base beam body falls called centre of gravity circle circumference coefficient of friction collision column common cubic foot cubic inches cylinder denote diagram diameter direction distance earth elastic equal equilibrium example exerted experiment fact falling body fastened feet per second fixed foot force acting friction fulcrum heat Hence Hydrometer inches of mercury Inclined Plane instance Law of Motion length Lever liquid machine mass mercury molecules momentum moving Natural Philosophy ounces parallel forces Parallelogram of Forces particle passes piston position Power pressure principle produce proportion radius raised resistance respect rest resultant right angles Screw shew side sliding solid specific gravity sphere square inch stone straight line string substance suppose surface System of Pullies temperature tension tion triangle tube turn round upwards velocity vertical vessel volume Wheel
Popular passages
Page 40 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Page 4 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Page 50 - To every action there is always an equal and contrary reaction ; or the mutual actions of any two bodies are always equal and oppositely directed.
Page 42 - Change of motion is proportional to the impressed force, and takes place in the direction of the straight line in which the force acts.
Page 6 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Page 319 - None of the processes of nature, since the time when nature began, have produced the slightest difference in the properties of any molecule. We are therefore unable to ascribe either the existence of the molecules, or the identity of their properties, to the operation of any of the causes which we call natural.
Page 256 - The Menai Bridge, one of the most stupendous works of art that has been raised by man in modern ages, consists of a mass of iron, not less than four millions of pounds in weight, suspended at a medium height of about 120 feet above the sea. The consumption of seven bushels of coal would suffice to raise it to the place where it hangs.
Page 319 - No theory of evolution can be formed to account for the similarity of molecules, for evolution necessarily implies continuous change, and the molecule is incapable of growth or decay, of generation or destruction. None of the processes of Nature, since the time when Nature began, have produced the slightest difference in the properties of any molecule.
Page 55 - If two forces acting on a particle be represented in magnitude and direction by...
Page 217 - Whatever change of weather suddenly follows a change in the barometer, may be expected to last but a short time. Thus, if fair weather follow immediately the rise of the mercury, there will be...