Word: detects
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Michaelson--who also leads a Dunster House seminar on the biology of the diseases of the developing world--began his research with an examination of the immune system and its ability to detect and fight foreign bodies, known as antigens. This highly specific system can destroy these antigens, which invade the body, while leaving a person's cells intact...
GATOR BOMBS. A version of cluster bombs, they explode in midair, scattering small, hard-to-detect mines over a region as large as 90,000 sq. yds. Under normal conditions, a soldier might be able to sidestep these explosives, but in the heat of battle, there is a tendency to leap without looking. The gator bomb thus can create panic among the enemy...
...biggest uncertainties before the war started was how the Patriot system would fare. The antimissile missile is guided by a sophisticated phased-array radar consisting of more than 5,000 radar antenna elements that can detect and track 100 targets at a time and follow any given one far more rapidly than the rotating cone of conventional radar. But the system had never been tested against a Scud...
That is not an easy task even for the most technologically sophisticated nation. A modern assault -- and the one on Iraq appears to have followed this pattern -- begins with an attack on the enemy's air-defense capabilities. Ground-hugging cruise missiles, flying too low for radar to detect easily, hit targets initially judged too dangerous for manned aircraft to handle. In the assault on Baghdad, some of the first blows came from Tomahawk cruise missiles fired by ships far out in the Persian Gulf. As the first explosions rocked the city, Iraqi antiaircraft fire was directed into...
...says Charles Yesalis, a Penn State University professor and steroid expert. "It's not even a close fight." Some athletes use so-called masking agents, chemicals that muddle test results to conceal steroid use. Others have turned from synthetic substances to human-growth hormone, which is virtually impossible to detect. Some have retained private labs to help them cheat...