Luna 2 also crash land on the Moon in exactly the same way. Crash landing proved useful even after soft landing was mastered. NASA used crash landings to test whether Moon craters contained ice by crashing space probes into craters and testing the debris that got thrown out. The satellite's impact made it the first man-made object to land on another celestial body. "Luna 2" carried 5 different instruments to conduct various tests while it was on its way to the Moon. The scintillation counters would be used to measure any ionizing radiation; the Cherenkov radiation detectors would be measuring for electromagnetic
Object to Be Destroyed limit of endurance. With a hammer well-aimed, try to destroy the whole at a single blow. 1932 was the year Man Ray's lover, Lee Miller, left him to return to New York. To make the connection to Miller more explicit, the object's original eye was replaced with a photo of hers. This metronome was exhibited for the first time at Galerie Pierre Colle, Paris, as "Eye-Metronome" in 1933. Subsequent exhibitions called the piece "Lost Object", 1945, "Last Object", 1966 and "Perpetual Motif", 1972. Man Ray stated that he had always intended to destroy it one day, but as a public