Earplugs Make Sounds Louder?

Wearing earplugs may help to cut out external noises, but why does it make it impossible to eat crunchy crisps? In this Question of the Week, we find out why earbud headphones make internal noises so loud, and ask how long did a dinosaur live, and what technology will we need to communicate with life around other stars? Like this podcast? Please help us by supporting the Naked Scientists