Cheerful Charlie
Contributor
We start with Michael Faraday and experiments with magnets and magnetic fields.
The Feynman Lectures on Physics Vol I, p 4-1
When Feynman wrote,
“It is important to realize that in physics today, we have no knowledge of what energy is,” he was recognizing that although we have expressions for various forms of energy (kinetic, heat, electrical, light, sound etc) we seem to have no idea of what the all-encompassing notion of “energy” is.
Adding.It is very strange. I do not drink or smoke. Sometimes on a thread it smells like I am in an elevator with someone who stanks of srale tobacco smole and alcohol.
Somebody who needs a shower and a change of clothes.
At the start of the thread yiu did not understand scientifically what energy is and means and how it is used scintifically. Any exression of energy in a model or theory reduces to the SI definition.
If yiu are argung advanced theory without understand that then there is nothing to discuss.
The Feynman Lectures on Physics Vol I, p 4-1
When Feynman wrote,
“It is important to realize that in physics today, we have no knowledge of what energy is,” he was recognizing that although we have expressions for various forms of energy (kinetic, heat, electrical, light, sound etc) we seem to have no idea of what the all-encompassing notion of “energy” is.