Word: flow
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Dates: during 1960-1969
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...Syracuse to up the voltage. The blowout disconnected the line from service; when Q-29BW's load transferred automatically to four other trunk lines running westward out of Beck, they were knocked out as well. With no place to go, the peak-hour power buildup reversed its flow, cascaded eastward through two 230,000-volt tie lines across Niagara Gorge. In a wave that lasted only five-sixths of a second, the wild wattage surged into New York State, knocking out the Niagara Falls-Massena main line three seconds later...
...fuels, tends to blow out at supersonic flight speeds (above 720 m.p.h. at low altitudes). If it is to keep burning and providing thrust, the ramjet needs an inlet shape to generate its own shock wave, which will slow passage of air through the combustion chamber to a subsonic flow. Above 4,000 m.p.h., however such an inlet design could cause excessive temperatures and pressures in the combustion chamber, and thrust wouk be drastically reduced...
Hydrogen Cooling. These apparent limitations dampened interest in further ramjet development work until late last year, when Marquardt Corp. scientists convincingly demonstrated a practical method of maintaining combustion in a supersonic flow of air. Using hydrogen, which has a low ignition temperature, burns rapidly and provides high thrust, they kept an experimental scramjet burning in air moving as fast as 7,000 m.p.h. By redesigning their engine's inlet to allow it to gulp air at supersonic speeds, they were also able to eliminate the excessive temperatures and pressures. And they proved that useful thrust could be produced...
...problem the surgeons faced was familiar. An artery consists of two inner layers and a "backup" outer layer which the flowing blood normally never touches. In arteriosclerosis, a fatty substance hardens along the inner layers and clogs the blood flow. The trick is to clean, remove or bypass those inner layers. Surgeons once commonly slit open the artery along the length of the diseased portion and scraped out the offending matter; more recently they have been bypassing or removing the entire section and replacing it with a synthetic graft...
...double wing, Yale likes to specialize in counter plays such as the scissors and the inside reverse, where a halfback ends up going against the flow of the defense. The holes in the line have usually been there, but the lack of speed in the Yale backfield has resulted in relatively short gains...