Word: wavelengths
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Dates: during 1980-1989
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...Wacker gives these establishments his nod of approval. In fact, UHS uses a similar device to to treat some skin disorders. "If it's certified equipment, and the people there know how to use it--and you don't get exposed to too many of the lower-wavelength, cancer-causing rays--I think its fine," he says...
...course, some people who are fair-skinned are particularly prone to developing skin cancer. To be safe you would want to put on a low number sun-block in case the machine leaks a little and you get exposed to the lower-wavelength rays...
...been difficult to find a newborn star because outer regions of the collapsing cloud hide the new star within. Ordinary light cannot penetrate the haze. The long-wavelength infrared and radio waves produced by a warming embryonic star can pierce it, however, just as a radar signal can cut through the densest...
...entire region's traffic. When authorities spot a suspicious craft, they quickly calculate which law- enforcement boats or planes can make the fastest interception. Then they dispatch the police craft with a state-of-the-art radio network that puts dozens of federal and local agencies on the same wavelength. Customs Service technicians built the system from scratch, starting with computer software borrowed from the Pentagon. "We're light-years ahead of the military. I'm very proud of it," says Michael Wewers, a Customs Service special agent...
...instruments will be studying such exotica as quasars, black holes and globular clusters, but for a while during the days that the five international probes encounter the comet, all of Columbia's eyes will be on Halley's. One of the Astro-1 telescopes will peer at very short wavelength light to see if it can detect such elements as helium, neon and argon, which would reveal something about what temperatures were like at the time the solar system formed. If neon were detected, for example, scientists would have to lower their estimates of the temperature at which comets coalesce...