Word: millionths
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...appeared in 1938: the electron microscope, in which beams of electrons are focused sharply enough to take photographs of objects less than a millionth of an inch across. This made many virus particles visualizable-and another Rockefeller fellow had something to visualize. Indiana-born Wendell Stanley went back to Beijerinck's favorite, the tobacco mosaic virus, or TMV, and spent years in a Princeton laboratory cooking down a ton of sickly tobacco leaves, filtering and re-filtering, dissolving and redissolving, until he had isolated the cause of this economically costly disease. What he had to show for years...
...micromicrocurie is roughly equivalent to one-millionth of one-millionth of the radioactivity of one gram of radium...
Jack Kennedy smilingly informed Mrs. Sprayberry that she was the millionth visitor to the White House this year, an all-time high. While the children stood speechless ("For the first time in their lives," their mother said wryly), the President gave them an autographed photo of himself, observed that the White House is "virtually the only home of a head of state in the world where the people of the country are welcome as visitors." Then the President of the U.S. went back to the more somber work that his office demands...
...nature of various chemical changes, Kistiakowsky has studied the precise ways in which molecules break up and re-form into new substances. He has also been interested in the kinetics of free radicals--unstable particles which separate off from molecules and then recombine into stable molecules in a millionth of a second...
...filaments connecting them to other neurons. The smaller glial (meaning gluey) cells stick to the neurons like caviar on a canape. Hyden and his colleagues at Goteborg, by exquisitely delicate techniques, have separated neurons from their adherent glial cells and have weighed them in units as small as millionths of a millionth of a gram. By taking fresh, still-living cells from a rabbit's brain, the Hyden team has been able to find out how they use and convert their chemical fuels under varying conditions...