A Johns Hopkins researcher proposes that a tiny jet of liquid inside a bubble could be the cause of sonoluminescence, releasing energy as light. The theory suggests that the fluid's fracture creates a foothold for noble gas atoms to initiate luminescence.
Tiny laboratory tornadoes may hold clues to detecting tornadoes earlier, a potential breakthrough in warning systems. Researchers have discovered an inverse relationship between vortex size and sound wave frequency.
A Cornell University team found no overt response from humpback whales to the Acoustic Thermometry of Ocean Climate (ATOC) simulation sounds in Hawaiian waters. The whales swam normally near the underwater speakers, with some even singing close to the speaker.