Word: ions
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Continuing his research after transferring to California in 1967, Stoeckenius found that the pigment, called bacteriorhodopsin, functioned as a sort of pump, converting sunlight directly into electrochemical energy. Light striking a pigment molecule causes it to eject a hydrogen ion-or proton-that passes through the cell's membrane. The movement of the positively charged protons through the membrane leaves an excess of negative charge on one side of the membrane. That produces a voltage gradient and results in an electrical current flowing through the membrane. In the process, which involves at least five separate steps, each bacteriorhodopsin molecule...
...driving, plangent sound--one of the deepest, but often the most electrical, tenors playing. His latest album, Touch, has mellowed a bit from Waterfall. Some even contend that the songs can't know, I like the album from each other. I don't know, I like the album alot--ion any case, he's definitely worth seeing...
...secretly been looking into the possibility of buying modern armaments, including American F-5 jet fighters, in the West. Such a move, if it materialized, would be unprecedented for a member of the Warsaw Pact. The subject was raised by Rumanian Chief of Staff and Deputy Defense Minister General Ion Coman when he flew to Washington in March for talks with his U.S. counterpart, General Frederick Weyand. But while the U.S. would welcome a "protocol" or limited military relationship, it is reluctant to provide Rumania with modern weapons involving classified technology that might fall into Soviet hands...
...policies. On balance, however, Ceauçescu remains well entrenched. The Soviets tried at least once to penetrate the Rumanian army and encourage anti-Ceauçescu elements; but the effort ended in failure and embarrassment in 1972, when Moscow's apparent man in the Rumanian army, General Ion Serb, was caught and court-martialed...
...will cut loose Lander I for its descent to Mars' surface. The lander, almost 10 ft. wide and 7 ft. tall overall, will start work at once. In the Martian atmosphere, only 1% as dense as earth's, its radio reports on atmospheric pressure, composition, temperature and ion concentrations will be relayed to earth by the Viking orbiter. Slowed by a parachute, the lander will spread its three spidery legs and will be braked by retrorockets for what is hoped will be a gentle setdown near the mouth of a 2,500-mile-long canyon, perhaps the site...