What if? by Randall Munroe is one of the goofiest books I’ve read in quite some time. It seriously examines a wide variety of fairly absurd situations from a very serious scientific perspective…
What if a steak was descending from space, would it cook?
How long would it take to find one other person if you were the only two people on the planet?
What would happen if a hole the size of a football field opened at the bottom of the ocean to drain out all the water?
In general it’s all good fun and a good reminder of various physics + mathematical principles. If you’re looking for a little bit of science mixed with some whimsy, this is a good read.