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The first orbiting X-ray telescope flew on Skylab in the early 1970s and recorded more than 35,000 full-disk images of the Sun over a 9-month period. [3] First specialised X-ray satellite, Uhuru, was launched by NASA in 1970. It detected 339 X-ray sources in its 2.5-year lifetime. [4]
Richard Joseph Durbin (born November 21, 1944) is an American lawyer and politician serving as the senior United States senator from Illinois, a seat he has held since 1997.
Cardiopulmonary resuscitation (CPR) is an emergency procedure consisting of chest compressions often combined with artificial ventilation, or mouth to mouth in an effort to manually preserve intact brain function until further measures are taken to restore spontaneous blood circulation and breathing in a person who is in cardiac arrest.
The actinide (/ ˈ æ k t ɪ n aɪ d /) or actinoid (/ ˈ æ k t ɪ n ɔɪ d /) series encompasses at least the 14 metallic chemical elements in the 5f series, with atomic numbers from 89 to 102, actinium through nobelium.