Word: trillionth
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Dates: during 1932-1932
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presence of one one-trillionth of a grain of timothy, golden rod, or ragweed pollen." On this happy note, with his tongue reaching for his cheek, Professor Pitkin winds up his 540-page introduction with the words: "We are now ready to begin the history of human stupidity." He cannot be said to have left his subject where he found...
...helium atoms) as they explode from radium at a speed of 12,000 mi. per sec., and ten microseconds apart. (A microsecond is one-millionth of a second.) Dr. Kenneth T. Bainbridge of Bartol Laboratories, Philadelphia, again described his two-ton mass-spectrograph which is sensitive to one-trillionth of a trillionth of an ounce (TIME, Feb. 22), which delicately indicated that the average atomic weight of the isotopes of tellurium is (new observation) 127.47 instead of 127.5. Dr. Bainbridge is proud that his machine cost him only $2,000 to build. President Compton of M. I. T. announced...
...theatre was a huge mass-spectrograph; his projectiles, atoms. What earned him scientific plaudits rather than police treatment was the fact that his instrument was bigger than anything that had previously been developed in the U. S., could therefore compute relative weights which differed by less than one-trillionth of one-trillionth of an ounce...
...switch by a time interval which must be measured in billionths of a second. Because that infinitesimal measurement is possible and because the time lag is different for every element and every form of every element, it is a delicate analyzer of unknown substances. It can discern one trillionth of a part of a foreign substance in anything presented to its wrenching beam. Last week's triumph of Professor Allison was his ability to state that eka-cesium had six very similar forms or isotopes. No. 87 belongs to the base-forming family of elements which include lithium, sodium, potassium...