Word: ultraviolet
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...year. But if the water is too cold, the cod remain close to the inshore spawning grounds, meaning there are even fewer for offshore trawlers to catch. Another consequence of global warming may affect cod eggs and larvae, which are deposited close to the surface and are sensitive to ultraviolet radiation. Stronger sunlight, caused by depletion of the ozone layer, may be killing them. The situation may be exacerbated by the fact that cod don't start migrating until they reach about three years old, when they begin by following the mature adults. But, says Jake Rice, head...
...grenade, but unlike a grenade the PEP travels at nearly the speed of light and can take out a target with pinpoint accuracy. Or picture this: a flashlight-size device, currently in development at HSV Technologies in San Diego, that transmits a powerful electric current along a beam of ultraviolet light. Shine that light on a human target, and you have a wireless taser that can paralyze targets as far away...
...grenade, but unlike a grenade the pep travels at nearly the speed of light and can take out a target with pinpoint accuracy. Or picture this: a flashlight-size device, currently in development at HSV Technologies in San Diego, that transmits a powerful electric current along a beam of ultraviolet light. Shine that light on a human target, and you have a wireless taser that can paralyze targets as far away...
...Hubble scientists face a big problem as they search for that light. They do not know exactly when it happened, even if they will still be able to see it. If it is too far away, the light may have shifted into the ultraviolet range, which means the search could have to wait for NASA's Next Generation Space Telescope, Hubble's successor, which is still in the design phase...
...forget the kids. Chances are they are outdoors more than you. Whatever you do, don't toss your sunglasses once summer is over. Ultraviolet radiation doesn't disappear on cloudy days or in winter. Preserving your vision is a year-round...