Combining observations of X-ray flares with those of gravitational waves emitted by the stars as they spiral together could fix the exact frequency at which the shattering occurs, which would reveal more about the stars» mysterious interiors, says Tsang. (newscientist.com)
As a result, the new laser can lock onto an exact frequency, or color, more tightly, making it 100 times sharper as a precision tool. (sciencedaily.com)
JILA scientists detect strontium's «ticks» (430 trillion per second) by bathing the atoms in very stable red laser light at the exact frequency that prompts the switch between energy levels. (nist.gov)