Word: pion
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...created by powerful atom smashers) disintegrate into slightly lighter mu mesons (muons) while an unseen particle carries away part of their energy. At first the physicists assumed that ordinary neutrinos were the guilty particles. Then they began to have their doubts. Maybe another kind of neutrino was stealing the pion's energy. But it had been hard enough to trap regular neutrinos; how were scientists to locate and study an even more evasive particle...
...search for stars that suggested the presence of an invisible intermediate particle. Only 93 of the 2,500 stars showed the computer what it was looking for. Carefully reexamined, the stars proved that when an antiproton hits a proton, it sometimes creates five mesons-two positive pions, two negative pions and one pion with no charge at all. For a fleeting instant, one positive and one negative pion cling to the uncharged pion, forming a single unit. That unit lives for only 10²² (one ten-thousand-billion-billionth) seconds. It travels only one ten-billionth of a centimeter...
...Then Rocky would shake the punch off and take up his stiff-legged charge. Stubbornly, Charles refused to go down. When the bell rang at the finish of the 15th round, he was still swinging. But the bumbling, ham-handed strongman from Brockton, Mass, was still the heavyweight cham pion of the world - a world in which good heavyweights are rare...
...good gymnast "must work harder than a ballet dancer, though he must have the same natural gifts-a supple body, good balance and above all a sense of rytm [rhythm]." The hungry Swedes, full of rytm, won five of the six events. Star of the show: Swedish Cham pion Borje Stattin, 23, a typographer by trade...
...last three sets. Stomping off the court, Trabert snapped at Aussie newsmen: "I have noth ing to say. You can make up your own story." Next day it was Seixas' turn to make another story. Playing in a doubles match with Partner Trabert, Wimbledon Cham pion Seixas was aced to match point...