alt Hacker News> Because they are vibrating, a lot of that energy is being wasted in brownian motion. So the denser it is, the more your average vector is going to be toward more dense brownian motion as the particles interact and induce more brownian motion ... Seems pretty intuitive to me.
So this is why warm objects weigh more?
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parineum • 06/16/2025
This reads like a sarcastic quip so, sorry if it wasn't but, they do. Solve for m in E=mc^2 and see what happens when objects have more energy.
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Warm objects actually do weigh more than their counterfactual cold versions haha. The stress energy tensor is the quantity to look at here.