They say that in space no one can hear you scream...and it's true! In the emptiness of space, nothing makes a noise. But on Earth...our ears are constantly pounded by sounds. Learn all about the most disgusting and dreadful aspects of sound. From flatulent whoopee cushions to glass-smashing opera singers and music-loving pigs, this book is full of yucky, painful and fascinating facts. You can get your ears tuned into some easy (and painless!) experiments, too.