Word: one-tenth
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...delicate an instrument is the human ear that at certain frequencies it can discern sound that moves the eardrum a distance only one-tenth the size of a hydrogen atom. The close-up roar of a jet engine amounts to one million billion times this threshhold level; this causes actual pain and soon brings on permanent deafness. Sound vibrations are transmitted by the eardrum and ossicle bones to the inner ear, a bony and membranous structure lined with tiny hairs that connect to the brain's auditory nerve. It is these hairs that are damaged most in noise-induced...
...M.P.S. Astronomers now believe that as much as one-tenth of a supernova's total mass is blown out at speeds approaching that of light, and enters the earth's atmosphere as cosmic rays. A second wave of slower radiation and burning gases causes the supernova to shine with prodigal splendor for weeks or even years until the star's remains gradually fade...
...Kansas sophomore had faithfully logged his usual 120 miles a week in practice and competed in 30 meets from New York to California. He set U.S. records for 800 meters and two miles, ran the fastest half mile (1 min. 44.9 sec.) in history. But he failed by one-tenth of a second to tie Michel Jazy's world record for the mile. That mile mark was Jim's real goal-no American had held it in 29 years-but now it would have to wait. Ryun was tired, and his left knee hurt. There were no more...
Bobby Leo, Joe Smith, Randy Thompson and Wayne Anderson combined for a 42.8 440 relay mark against Dartmouth knocking one-tenth from the Harvard record...
...large African grasshopper to catch and kill a mouse, and giant water bugs commonly capture and devour small snakes. Almost any beetle can lift 850 times its own weight; to do as much, a man would have to lift 62 tons. And the common flea, which measures one-tenth of an inch, can jump twelve inches, or 120 times its own length; to do as much, a man would have to jump 720 feet...