Brad Bird 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.

Weight, force and casual impulse, together with resistance, are the four external powers in which all the visible actions of mortals have their being and their end.

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

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

What goes up must come down.

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

For relaxation, I like to figure skate. Being on the ice and spinning and jumping, I feel very close to nature. In particular, I feel very close to Newton's laws of motion. On the ice, you can experience Newton's laws of motion in their purest, most elegant form.

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

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.

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.

It is indeed a law of politics as well as of physics, that a body in action must overcome a body at rest.

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

A point of rest alone explains motion.

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

I guess I'm fascinated with motion because I find that whenever anything is moving, I have some feeling about it. It doesn't matter what kind of motion it is. A motion will always evoke some kind of reaction.

Everything I do is somehow connected to velocity.

Friction is necessary for motion, labor necessary for birth.

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

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

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.

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.

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.

When a body acts upon another one, it is always immediately or through some intermediate body; this intermediate body is in general what one calls a machine.