Acoustics
Human activity forces dolphins and whales to shout.
Hackers could exploit electrical signals from devices, even those not connected to the Internet.
A digital model demonstrates the inner ear can dampen background noises.
As hospitals grow louder, new guidelines promise a good night's sleep for some.
How the Nittany Lions are using the science of acoustics to help crank up home field crowd noise.
Combining sound to make silence solves an age-old pipe organ mystery.