Hawking is Unruh? (Patreon)

Actual "back of the envelope" calculations (or at least spacetime diagrams) are real! Just thought I'd share the messy results when Graeme and I try to figure out whether Hawking and Unruh radiation are the same thing from different points of view. Our conclusion: sort of, probably. At least the Unruh acceleration horizon (the left-hand wedge in the bottom right Minkowski spacetime diagram) seems to coincide with the event horizon for someone trying to hover above a black hole (top left Penrose diagram). 

These episodes have been a long time in the making (and in the promising!), but they'll be worth it.

In the meantime, the next episode will be the winner of our content team vote: What is Energy? I'll post separately about that...

- Matt