Can Cows Walk Down Stairs?

What is ear wax for? Do bacteria have sex? How do they put stripes in toothpaste? Does your nose run in space? What are stars made of? This book answers those tantalising or perplexing questions for which you thought you'd never find an answer. A book for the naturally curious, as well as those seekers after scientific truths, it unravels both those things we take for granted, such as when you boi...