Podcast: Annoying Sounds, Washer Lint, and Pushing Objects With Light

David is the Online News Editor of Science.

Why is the sound of fingernails on a chalkboard so painful? How can light be used to move an object? And is washer lint dangerous to ocean ecosystems? Science's Online News Editor David Grimm chats about these stories and more with Science's Kerry Klein.

(Listen to the full Science podcast and more podcasts.)

Posted in Earth, Physics, Brain & Behavior podcast