... was retrieved by a space shuttle in January 1990, a few weeks before its decaying orbit would have sent it crashing back to earth. .. .. . "NASA scientists in Huntsville, Ala., discovered the growth while examining a brownish discoloration on a Tefloncovered section of the satellite. "Using an electron scanning microscope, they saw tiny, stalactite-like structures on the Teflon. Tiny means the longest were about seven microns in size. That's about one-tenth the width of a human hair. "At first NASA scientists thought the growth might be a fungus or a mold that had contaminated the LDEF upon its return. However, their tests came up negative," (Anonymous; "Odd Space Growth on Satellite Baffles NASA," Arkansas Demo crat-Gazelle , September 9, 1992. Cr. L. Farish) From Science Frontiers #84, NOV-DEC 1992 . 1992-2000 William R. Corliss ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf084/sf084b06.htm
... . 47: Sep-Oct 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects How The Cheetah Lost Its Stotts "Faced with a predator, for example, a cheetah, many deer, antelope and other bovids turn tail and run. But they also go in for a very curious display, before and during the run. They bounce up in the air, keeping all four legs straight. Stotting, as the display is known, must make the animal visible, and presumably also vulnerable to the predator. It certainly attracts the human observer's attention, and there has been no shortage of 'explanations' for this strange behavior." Actually, at least 11 hypotheses have been proposed. T. Caro has observed Thomson's gazelles stott on more than 200 occasions, usually in response to a cheetah or himself. Caro thinks that adult gazelles stott to proclaim to the cheetah that it has been detected and no longer has surprise in its favor. Cheetahs often do give up after stotting. Further, stotting gazelles have never been seen to be caught -- so far. (Anonymous; "How the Cheetah Lost Its Stotts," New Scientist, p. 34, June 19, 1986.) Reference. More information on stotting and other unusual mammalian behavior, see BMB32 in our catalog: Biological Anomalies: Mammals I. Ordering information here . A springbok stotting or 'pronking' From Science Frontiers #47, SEP-OCT 1986 . 1986-2000 William R. Corliss ...
Terms matched: 1 - Score: 34 - 15 May 2017 - URL: /sf047/sf047p10.htm