Storm in a Teacup: The Physics of Everyday Life

by Helen Czerski

When we say “heat rises,” that’s not quite true. It’s more that “cooler fluid sinks as it wins the gravitational battle.” But no one thanks you for pointing that out.

One day last year, I’d popped into London’s Science Museum to buy some lovely spherical magnets (some for a friend and some for me—that’s how it should be with science toys, right?).