Learn how echolocation has shaped the skulls of bats that emit high-frequency sounds through their mouths and noses.

Menlo's optical frequency combs are a core component of optical clocks, such as this one at JILA. (Courtesy: GE Marti/JILA) This year marks the 20th anniversary of the first time an optical-frequency ...

High-frequency ultrasound significantly reduces the size of the face and modifies the internal bones of the ear in bats.

The safety of wind turbines can be severely compromised by resonance between wind turbine towers and rotors. Traditional methods for measuring the natural frequency of wind turbine towers require ...