I am

I am a supporter of near 80kg as I barge my weight around, freely deploying this body's mass energy amounting to 1700 Megatons of TNT at my whim here and there. As I pirouette in the kitchen with a frying pan in hand, my angular momentum reaches 125 kg m\(^2\) s\(^{-1}\).

I am a table of physical constants half heartedly remembered but intricately deployed. I am a repository of obscure formulae. I will this mass of molecules into the next temporal moment, carefully obeying all the right conservation laws.

My body channels Noether's theorem and a miasma of complicated Lagrangians all seeking stationary action. I am a place for photons to come and be absorbed, only to be re-emitted moments later.

I am a consumer of low entropy configurations, and an exporter of random thermal energy. If I could collapse to a black hole right now I would be miniscule—about as small again as a single proton is smaller than I am now. I reconsider my options as the universe continues to work its numbers.