To get a handle on this shaky question Connie Orbach called in Dr Alex Copley from Cambridge University's Department of Earth Sciences... Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Does regular hand soap kill germs?

Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time...