For the first time, scientists have shown that sound can travel through the emptiness of a vacuum. However, the rule-breaking trick requires specific circumstances and can only be carried out over ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Because space is a vacuum nearly devoid of particles, sound can’t travel through its vast emptiness.

Quantum mechanics dictates sensitivity limits in the measurements of displacement, velocity and acceleration. A recent experiment probes these limits, analyzing how quantum fluctuations set a sensor ...

Researchers have developed a new theory for observing a quantum vacuum that could lead to new insights into the behavior of black holes. The Unruh effect combines quantum physics and the theory of ...

Behind every coincidence lies a plan -- in the world of classical physics, at least. In principle, every event, including the fall of dice or the outcome of a game of roulette, can be explained in ...