If you have ever watched a bat cut through the night sky, it almost feels unreal. No light, no landmarks, yet no crashes ...

Bats navigate chaos in complete darkness by listening to shifting echoes, adjusting speed instantly without tracking every ...

Like so many mini submarines equipped with sonar, they deftly navigate dark forests and caves by listening for the echoes of ...

The Doppler shift of sound or light waves from a moving source is familiar to physicists and non-physicists alike. Now, researchers in China and Australia have seen the more exotic inverse Doppler ...

Radar is quite spectacular in telling us exactly where rain is falling by pinging precipitation with radio waves! Our weather radar can determine more than just a storm’s location, but its movement as ...

The International Isle of Man TT is a crazy motorcycle race. I mean—it's seriously ludicrous. They ride on public roads (yes, they are closed to normal traffic) such that you get these videos of bikes ...

The Doppler effect is an observed change in pitch (how high or low a sound is) when either the source of the sound or the listener is in motion. Imagine a car, its horn blaring, approaching you as you ...

Flying bats do not travel through silence. Every call they make comes back layered with sound from leaves, branches, trunks, ...