The fun part is that his picture will also unlock the door 🥸

Ok, that makes sense. I expected it to be kinetic into thermal.

But then in a place like the ISS with all the people all the time, does it mean extra heat inside? What would happen if you played loud music? I mean vacuum does not the heat away from you quickly, and there’s nothing to take the kinetic energy. After years of people talking and beeps beeping, where did it go?

Thank you!