amplify
Crickets Carve Tools to Amplify Their Chirps
The insects fashion and use "baffles"—sound controllers—made of leaves to produce sound more efficiently. Jason G. Goldman reports. Learn more about your ad cho…
Your Skull Shapes Your Hearing
The resonant properties of your skull can amplify some frequencies and dampen others—and, in some cases, affect your hearing. Christopher Intagliata reports. Le…






