Word: friction
(lookup in dictionary)
(lookup stats)
Dates: during 1960-1969
Sort By: most recent first
(reverse)
...three-second burn from the backward-firing thrusters, for example, will increase an astronaut's forward velocity by one foot per second. Because there is no air friction to slow him down, the astronaut will have to use his forward-firing thrusters for exactly three seconds to stop his forward motion as he approaches his destination. If his timing is inaccurate, he may crash into his target or wind up bouncing back and forth like a celestial ping pong ball...
...hydrogen fuel also promises to pay an extra dividend. To be kept in liquid form, it must be stored in refrigerated tanks at a temperature of - 423 °F. And since a plane moving at scramjet speeds will be seared by the heat of friction as it moves through the atmosphere, the frigid hydrogen will make an ideal coolant to be pumped through the skin of wings and fuselage before it is burned...
...giving Pearson the bad advice to call an election. Yet Pearson was the man on the line, and the result was doubly shocking because his minority government had been relatively successful-pushing Canada's already booming economy to new peaks, improving federal-provincial relations, soothing the dangerous friction between French and English-speaking Canada, giving the country its own flag...
...Conn., hat they could afford a new high school costing $11,800,000. Even Indiana's less affluent Lawrence Township approved Engelhardt's $5,000,000 high school. "It's air-conditioned and has a swimming pool; yet we didn't have any kind of friction at all," boasts Superintendent Edwin Estell...
...ball is super because it has more bounce to the ounce than any other in history. Dropped on a hard floor from shoulder level, it will bounce almost all the way back, continue bouncing for a full minute (a tennis ball lasts ten seconds). It has such friction that, given reverse English, it will change direction each time it bounces. Thrown forward, it picks up so much forward spin when it hits the ground that it leaps ahead with almost twice the speed on the second bounce...