Science Forums 2

[sebbysteiny]

I'm sorry to intrude on your territory Arkain and I'm not going to contradict you.

Instead, I'll suggest a less mathematical explanation.

I am highly sceptical of calling energy 'a thing, like red'. I think it is a real property of matter like mass.

It can't just be a description attached to mass since there are massless particles that are entirely made of energy.

Yet you have pointed out difficulties in which the meaning of Kinetic energy appears meaningless depending on the frame. The question is, can this be resolved without giving up on the idea that energy is a property of the Universe and exists.

You also mentioned how energy, like money, can be recycled into another form which I think is only a half truth.

There are 3 topics that seemed to arise: relitivistic and non-relativistic treatment of Kinetic energy and momentum; and entropy.

I'll deal with them, but I've gotta go now. I'll edit this post when i return.