Word: passing
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Dates: during 1960-1969
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...student and he has been making the most of it. Handsome and athletic, he drives a Cadillac, walks a Doberman pinscher and holds court under the shade trees of Washington's Dupont Circle. He has more white girl friends than he knows what to do with. "They pass me around," he says with amazement. "They think I'm this potent black Adonis, this ebony...
...operating room, where they can cut into human and animal tissue as delicately as a finely honed scalpel. Even better, the laser knife does not draw blood. Its searing but highly localized heat cauterizes capillaries and other blood vessels as they are severed. Like ordinary light, laser beams pass through transparent substances but are absorbed by darker, opaque materials. Thus they flash harmlessly through the cornea and lens of the eyeball to weld a detached retina back into place, or puncture small holes in the retina to ease the pressure of glaucoma. They also penetrate translucent skin to vaporize skin...
...tube, it gives off a brief, intense flash of light. Inside the ruby rod, the chromium atoms are highly excited by the light flash; their electrons temporarily absorb excess energy. Then, as the electrons fall back toward their normal energy levels, each emits a photon. Some of the photons pass through the transparent walls of the ruby rod and are lost. But many hit the mirrors at either end of the rod and are reflected back to the opposite mirror. As they bounce back and forth along the rod, they stimulate other chromium atoms into emitting photons (see diagram...
...wastes that his own diseased kidneys cannot remove, is piped from an artery into a coil or container made of permeable cellulose. This is immersed in a swirling bath, containing bloodlike salts and acids, known as dialysate. The blood's impurities (but not the blood cells or vital proteins) pass into the bath through minute porosities in the cellulose, and then go down the drain. Some models require a pump to circulate and renew the bath water, while others rely on gravity or faucet pressure. Some depend on arterial pressure to get the blood through the machine and back into...
Cloakroom & Corridor. In Sidey's view, Johnson has never fully comprehended the difference between legislative and executive power, and his Administration has suffered for it. As Senate Majority Leader, he developed "a box-score mentality"-a sort of "Hey, hey, L.B.J., how many bills did you pass today?" approach that emphasized statistics at the expense of inspiration. His greatest failing, however, has been in the art of communicating. "Language may be the most important tool that a President has for governing this sprawling nation," says Sidey, and while Johnson is superbly versed in the arcane language of cloakroom...