If you place a wineglass before a speaker emitting waves at the vessel’s resonant frequency, it will vibrate, or even shatter. But resonant frequencies aren’t unique to stemware; every object has one (or, more often, several). Even googly eyes.
Scientists have long believed that Earth's moon was born with a bang, in a colossal planetary collision commonly dubbed "The Big Splat." A study published in the latest issue of Nature all but confirms this violent hypothesis — but two additional studies published today in Science make the story of the Moon's origins…
Tibetan singing bowls have been used to produce beautiful and eery sounds. Now physicists are using them when they're full of water to create a reverse-rainstorm.