Word: gamma
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
When harmful material enters the body of a guinea pig, he said, the animal secretes at least two chemical antibodies, called gamma-1 and gamma-2. The gamma-2 molecule acts rapidly to attach itself to the walls of tumor cells. and with the aid of chemicals in the blood it breaks open the cell membrane, often killing the cancer...
...gamma-1 compound normally serves an entirely beneficial function. In this case, however, it also attaches itself to the cancer cells. But is unable to pierce their outer membranes...
Silver atoms that are caught in the penetrating beam capture neutrons and briefly become unstable isotopes, emitting gamma rays that can be recorded by the snooper's scintillation counter. Since silver isotopes, like radioactive atoms of other elements, have their own characteristic half life-or rate of decay-and emit gamma rays at a specific energy level, the snooper's detectors can distinguish them from atoms of other elements in the area that have also been made radioactive by the neutron beam...
Luna's gamma-ray measurements indicated that the moon has a crust some what similar to the earth's. The satellite also established for the first time that both the number of meteorite particles and the strength of the magnetic field in the vicinity of the moon are higher than in interplanetary space. It also discovered 70 to 100 times as many energetic electrons as are expected in outer space. Russian scientists attributed the electrons to the "earth's magnetic tail...
Venusian Distance. Harvard physicists, for example, have measured the minute frequency change that takes place in gamma rays projected vertically for as little as 70 ft. in the earth's gravitational field. Their results upheld the gravity-caused shifts in frequency predicted by Einstein. An M.I.T. scientist plans to bounce high-frequency radar pulses off Venus as it begins to swing behind the sun. If Einstein's theory holds, the radar waves will be slowed down slightly as they pass through the strongest part of the solar gravitational field-enough to cause a 40-mile error in radar...