Hermann von Helmholtz Quotes

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.

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

Energy is the measure of that which passes from one atom to another in the course of their transformations. A unifying power, then, but also, because the atom appears to become enriched or exhausted in the course of the exchange, the expression of structure.

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

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°.

One of the bedrock principles of physics is the conservation of energy. In this universe, energy can be neither created nor destroyed.

Energy is a concept that has been coined by physicists. There is no observable thing known as energy anywhere.

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.

Energy is everything. Rubbing happy and sad together creates energy.

We may stop ourselves when going up, never when coming down.

What goes up must come down. But don't expect it to come down where you can find it.

The stone that is thrown into the air is none the worse for falling down, and none the better for going up.

Our energy is in proportion to the resistance it meets.

What goes up must come down.

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.

Heat can also be produced by the impact of imperfectly elastic bodies as well as by friction. This is the case, for instance, when we produce fire by striking flint against steel, or when an iron bar is worked for some time by powerful blows of the hammer.

What appeared to the earlier physicists to be the constant quantity of heat is nothing more than the whole motive power of the motion of heat, which remains constant so long as it is not transformed into other forms of work, or results afresh from them.

Energy can't be created or destroyed, and energy flows. It must be in a direction, with some kind of internal, emotive, spiritual direction. It must have some effect somewhere.

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

The height of the pulleys from the ground was twelve yards, and consequently, when the weights had descended through that distance, they had to be wound up again in order to renew the motion of the paddle.

You know how you put peanut butter on a piece of bread and the bread falls - it never falls on the bread side down, it always falls peanut butter side down. That's because of gravity.

Energy Is Conserved.

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.

It takes energy to get energy.

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.