Quotes & Sayings About Isaac Newton On Gravity

Just as the system of the sun, planets and comets is put in motion by the forces of gravity, and its parts persist in their motions, so the smaller systems of bodies also seem to be set in motion by other forces and their particles to be variously moved in relation to each other and, especially, by the electric force. — Isaac Newton

That one body should act upon another through a vacuum without the mediation of anything else is so great an absurdity that no man suited to do science ... can ever fall into it, ... Gravity must be caused by an agent ... but whether that agent be material or immaterial I leave to my readers. — Isaac Newton

Just because an apple falls one hundred times out of a hundred does not mean it will fall on the hundred and first. — Derek Landy

Gravity must be caused by an Agent acting constantly according to certain laws, but whether this Agent be material or immaterial I have left to the consideration of my readers. — Isaac Newton

I have not been able to discover the cause of those properties of gravity from phenomena, and I frame no hypotheses; for whatever is not deduced from the phenomena is to be called a hypothesis, and hypotheses, whether metaphysical or physical, whether of occult qualities or mechanical, have no place in experimental philosophy. — Isaac Newton

You sometimes speak of gravity as essential and inherent to matter. Pray do not ascribe that notion to me, for the cause of gravity is what I do not pretend to know, and therefore would take more time to consider of it. — Isaac Newton

It was a little insulting to admit that a drooling dolt like Coulter might be right about something, but after all, Isaac Newton didn't reject gravity just because the apple had a low IQ. — Jeff Lindsay

Sir Isaac Newton was asked how he discovered the law of gravity. He replied, By thinking about it all the time. — Isaac Newton

Gravity may put the planets into motion, but without the divine Power, it could never put them into such a circulating motion as they have about the Sun; and therefore, for this as well as other reasons, I am compelled to ascribe the frame of this System to an intelligent Agent. — Isaac Newton

Sir Isaac Newton, renowned inventor of the milled-edge coin and the catflap!"
"The what?" said Richard.
"The catflap! A device of the utmost cunning, perspicuity and invention. It is a door within a door, you see, a ... "
"Yes," said Richard, "there was also the small matter of gravity."
"Gravity," said Dirk with a slightly dismissed shrug, "yes, there was that as well, I suppose. Though that, of course, was merely a discovery. It was there to be discovered." ... "You see?" he said dropping his cigarette butt, "They even keep it on at weekends. Someone was bound to notice sooner or later. But the catflap ... ah, there is a very different matter. Invention, pure creative invention. It is a door within a door, you see. — Douglas Adams

As to your Newton, I confess I do not understand his void and his gravity; I admit he has demonstrated the movement of the heavenly bodies with more exactitude than his forerunners; but you will admit it is an absurdity to maintain the existence of Nothing.
[Letter to Voltaire, 25 Nov. 1777] — Frederick The Great

The Church no more gave us the New Testament canon than Isaac Newton gave us the force of gravity. — J.I. Packer

The same law takes place in a system, consisting of many bodies, as in one single body, with regard to their persevering in their state of motion or of rest. For the progressive motion, whether of one single body or of a whole system of bodies, is always to be estimated from the motion of the center of gravity. — Isaac Newton

Thus far I have explained the phenomena of the heavens and of our sea by the force of gravity, but I have not yet assigned a cause to gravity. Indeed, this force arises from some cause that penetrates as far as the centers of the sun and planets without any diminution of its power to act, and that acts not in proportion to the quantity of the surfaces of the particles on which it acts (as mechanical causes are wont to do) but in proportion to the quantity of solid matter, and whose action is extended everywhere to immense distances, always decreasing as the squares of the distances. — Isaac Newton

The hypothesis of matter's being at first evenly spread through the heavens is, in my opinion, inconsistent with the hypothesis of innate gravity without a supernatural power to reconcile them, and therefore, it infers a deity. — Isaac Newton

Our design, not respecting arts, but philosophy, and our subject, not manual, but natural powers, we consider chiefly those things which relate to gravity, levity, elastic force, the resistance of fluids, and the like forces, whether attractive or impulsive; and therefore we offer this work as mathematical principles of philosophy; for all the difficulty of philosophy seems to consist in this from the phenomena of motions to investigate the forces of nature, and then from these forces to demonstrate the other phenomena ... — Isaac Newton

The smaller the planets are, they are, other things being equal, of so much the greater density; for so the powers of gravity on their several surfaces come nearer to equality. They are likewise, other things being equal, of the greater density, as they are nearer to the sun. — Isaac Newton

He who thinks half-heartedly will not believe in God; but he who really thinks has to believe in God. — Isaac Newton

When asked about which scientist he'd like to meet, Neil deGrasse Tyson said, Isaac Newton. No question about it. The smartest person ever to walk the face of this earth. The man was connected to the universe in spooky ways. He discovered the laws of motion, the laws of gravity, the laws of optics. Then he turned 26. — Neil DeGrasse Tyson

Kepler's laws, although not rigidly true, are sufficiently near to the truth to have led to the discovery of the law of attraction of the bodies of the solar system. The deviation from complete accuracy is due to the facts, that the planets are not of inappreciable mass, that, in consequence, they disturb each other's orbits about the Sun, and, by their action on the Sun itself, cause the periodic time of each to be shorter than if the Sun were a fixed body, in the subduplicate ratio of the mass of the Sun to the sum of the masses of the Sun and Planet; these errors are appreciable although very small, since the mass of the largest of the planets, Jupiter, is less than 1/1000th of the Sun's mass. — Isaac Newton

As Attraction is stronger in small Magnets than in great ones in proportion to their Bulk, and Gravity is greater in the Surfaces of small Planets than in those of great ones in proportion to their bulk, and small Bodies are agitated much more by electric attraction than great ones; so the smallness of the Rays of Light may contribute very much to the power of the Agent by which they are refracted. — Isaac Newton

The most famous story about gravity involves Isaac Newton and an apple that supposedly fell on his head, inspiring him to concoct his theory of universal gravitation. (It's mostly famous because Newton himself couldn't stop telling it later in life, in an unnecessary attempt to add some extra juice to his reputation as a genius.) — Sean Carroll

Gravity explains the motions of the planets, but it cannot explain who sets the planets in motion. — Isaac Newton

One [method] is by a Watch to keep time exactly. But, by reason of the motion of the Ship, the Variation of Heat and Cold, Wet and Dry, and the Difference of Gravity in different Latitudes, such a watch hath not yet been made. — Isaac Newton

I have explained the phenomena of the heavens and of our sea by the force of gravity, but I have not yet assigned a cause to gravity. — Isaac Newton

If a projectile were deprived of the force of gravity, it would not be deflected toward the earth but would go off in a straight line into the heavens and do so with uniform motion, provided that the resistance of the air were removed. — Isaac Newton

The "gravity train" was devised in the seventeenth century by British scientist Robert Hooke, who presented the idea in a letter to Isaac Newton. The idea has been seriously presented a few times, such as to the Paris Academy of Sciences in the nineteenth century. — Stephen Baxter

The moon gravitates towards the earth and by the force of gravity is continually drawn off from a rectilinear motion and retained in its orbit. — Isaac Newton

The split between religion and science is relatively new. Isaac Newton, who first worked out the laws by which gravity held the planets and even the stars in their traces, was sufficiently impressed by the scale and regularity of the universe to ascribe it all to God. — Seth Shostak

I just think it's fortunate that Sir Isaac Newton didn't share the sense of humor of a member of the public, because had he done so, he would of been so amused by the simple effects of gravity, that he would of never gotten round making a comprehensive study of it's causes.
That's the punchline! 'a comprehensive study of it's courses'! I worked for that! Will you be telling this joke at work? I don't think so!
And yes, I am aware that I say this to you while hanging precariously of this art-deco balcony. And I do so deliberately in the hope that I will fall to my death, and that you will learn about the thin line between slap-stick and tragedy. — Stewart Lee