Thread: So simple you will cry.

It's obviously not just a way to measure something, since it's real.
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Metres are just imaginary, you guys are saying energy is not.

Metres aren't imaginary. They are units of measure to define length, a physical quality, an attribute to objects. We defined the metre. That's different from saying they are 'imaginary'.

Just like length, energy is an attribute to objects. It is 'the ability to do work'. What do we mean by that? When we pull an elastic band, we add energy to it: it has the ability to do work, namely, to snap back to its original length when we let it go.
It is a measurable ATTRIBUTE to things. It can't be broken down. Just like 'length' can't be broken down... What's smaller than 'length'... 'Breadth'?

I don't now what you mean with 'energy is real', though. Length is real. Energy is real. Of course it is real. The measure with which we measure it might be defined by us humans, but that doesn't change the fact that physical things have 'the long dimension', just like they have 'the ability to do work'

How do you define 'energy'? What do you see in your mind when I say 'energy'?