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Word: proton (lookup in dictionary) (lookup stats)
Dates: during 1990-1999
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Gabrielse and Khabbaz then added a negative hydrogen ion--a proton with two electrons around it--to the field. While the two particles moved in circular orbits, Gabrielse and Khabbaz measured the frequency at which each of the particles oscillated with a very sensitive radio...

Author: By Alysson R. Ford, CONTRIBUTING WRITER | Title: Researchers Prove Equal Proton, Antiproton Mass | 6/3/1998 | See Source »

...measured the radio station that is one antiproton...and we listened to one proton...and we compared back and forth to see if they have the same oscillation ion frequency in the same field [to determine] if they have the same properties," Gabrielse said...

Author: By Alysson R. Ford, CONTRIBUTING WRITER | Title: Researchers Prove Equal Proton, Antiproton Mass | 6/3/1998 | See Source »

MOSCOW: When a booster on a Russian-made Proton-K rocket failed six hours into launch Friday, a $100 million U.S.-built communications satellite was lost in space. The Russian Space Agency looks to be close behind. The satellite, built by Hughes Space & Communications International in El Segundo, Calif., was fully insured, and a replacement will be ready in two years. But this was the third major failure of the DM-3 booster in the two years that the RSA has been carrying foreign satellites into space for desperately needed cash (charging about $70M a ride). Will Hughes ask again...

Author: /time Magazine | Title: Mir We Go Again | 12/26/1997 | See Source »

ZAPPING CANCER A new kind of radiation that uses proton beams may be better at treating some cancers than conventional X rays...

Author: /time Magazine | Title: Notebook: Dec. 15, 1997 | 12/15/1997 | See Source »

...that scale, an internal combustion engine is about $50 per kilowatt. In comparison, a proton-exchange-membrane (PEM) fuel cell--the ideal fuel cell for vehicles--costs up to $10,000 per kilowatt, according to Maru...

Author: By Nicholas A. Nash, CONTRIBUTING WRITER | Title: Fuel Cells: Unleashing the Power of Hydrogen | 12/9/1997 | See Source »

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