Hermann von Helmholtz Quotes

If you assume that it was a valid experiment, then its disintegration reveals a very substantial part of what has been found since then, including the fact that you can get heat generation at high temperature.

The law in question asserts, that the quantity of force which can be brought into action in the whole of Nature is unchangeable, and can neither be increased nor diminished.

The fall of a given weight from a height of around 365 meters corresponds to the heating of an equal weight of water from 0° to 1°.

But heat can also be produced by the friction of liquids, in which there could be no question of changes in structure, or of the liberation of latent heat.

A raised weight can produce work, but in doing so it must necessarily sink from its height, and, when it has fallen as deep as it can fall, its gravity remains as before, but it can no longer do work.

A ball will always come to rest halfway down a hill, unless there is sand or water at the bottom.

There is nothing like a doorbell to precipitate the potential into the kinetic.

The wheel and the brake have different duties, but also one in common: to hurt one another.

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.

Whenever we warm our hands by the fire, we allow the energy radiated by the fire to quicken up the movements of the atoms of which the hands are composed. When we cool any substance, we check those movements.

According to the kinetic theory of gases, the mean kinetic energy of a molecule is a measure of absolute temperature.

Energy Is Conserved.

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.

Local order in parts of the universe is always possible at the expense of heat and disorder dissipated to the external environment. The human body is one example: we take in energy from our environment to build up complex molecules that help power our bodies, and, in doing so, we release heat to the world around us.

Whenever you say you're a physicist, there's a certain fraction of people who immediately go, 'Oh, I hated physics in high school.' That's because of the terrible influence of high school physics. Because of it, most people think physics is all about inclined planes and force-vector diagrams.

In order to lift a certain object from the ground, we have to use energy. But then to sustain it at that level, we have to keep on adding energy, or otherwise, the object falls to the ground. It's exactly the same thing with the sound.

Weather systems are natural heat engines, and like all other heat engines, both natural and artificial, they are driven not by temperature per se, but by differences in temperature between one location and another.

Anytime you hit a curve, or you hit on the side of the wall, you hit against the side of the sled. We're taking four to five, sometimes six or seven Gs on our body every time we go down the track. And then the crashing.

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.

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

You throw a rock in the water, and ripples spread out slowly. But they do go far.

In the Marvel universe, vibranium has always been this material that absorbs kinetic energy. And any tiny bit of physics knowledge will tell you that that's really non-Newtonian. You can't just absorb energy, you've gotta change it into something else.

I don't feel my opponent's power. I feel something happening when I get hit, but I don't feel power.

The laws of thermodynamic s are such that if the water is getting warmer - and I believe it is - the energy of the weather is going to go up.