Leonardo da Vinci Quotes

Resistance is usually ascribed to bodies at rest, and impulse to those in motion, but motion and rest, as commonly conceived, are only relatively distinguished; nor are those bodies always truly at rest, which commonly are taken to be so.

Acceleration is finite, I think according to some laws of physics.

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.

In bodies moved, the motion is received, increased, diminished, or lost, according to the relations of the quantity of matter and velocity; each diversity is uniformity, each change is constancy.

We're used to thinking of force as a stable phenomenon, but it has a cinematic variable, which is acceleration.

What goes up must come down.

My physics teacher, Thomas Miner was particularly gifted. To this day, I remember how he introduced the subject of physics. He told us we were going to learn how to deal with very simple questions such as how a body falls due to the acceleration of gravity.

If you move something 10 pounds through space and then stop suddenly, there's a little overshoot. When you transfer weight from one leg to another, there's a certain way that it happens.

Another mode of accumulating power arises from lifting a weight and then allowing it to fall.

Our annual school physics trip was always to Blackpool Pleasure Beach, as it's such a good example of Newtonian physics. You can learn about centrifugal force and Newton's first law from the roller coasters, and the Viking long boat is a giant pendulum. It's good for children to understand that science underpins all these brilliant things.

Action and reaction are equal and opposite.

Newman's first law: It is useless to put on your brakes when you're upside down.

Playgrounds are essentially machines to induce Newtonian physics on our own bodies.

Bowling is all physics and energy distribution. It's F = ma. So it is actually one of the most science-y sports, because it literally is just a ball and a surface and objects to knock down.

The great weight of the ship may indeed prevent her from acquiring her greatest velocity; but when she has attained it, she will advance by her own intrinsic motion, without gaining any new degree of velocity, or lessening what she has acquired.

Momentum,' She repeats. 'You can't just stand there if you want something to fly. You have to run.

Any schoolboy could see that man as a force must be measured by motion, from a fixed point.

Gravity is more powerful where there's more stuff.

Every body continues in its state of rest or uniform motion in a straight line, except insofar as it doesn't.

It is just physics - who can argue with Newton and the first law of thermodynamics?

An object in motion tends to remain in motion along a straight line unless acted upon by an outside force.

It is reasonable that forces directed toward bodies depend on the nature and the quantity of matter of such bodies, as happens in the case of magnetic bodies.

To every action there is always opposed an equal reaction, or, the mutual actions of two bodies upon each other are always equal, and directed to contrary parts.

Though we may never be able to comprehend human life, we know certainly that it is a movement, of whatever nature it be. The existence of movement unavoidably implies a body which is being moved and a force which is moving it. Hence, wherever there is life, there is a mass moved by a force. All mass possesses inertia; all force tends to persist.

For every action there is an equal and opposite reaction.