Fluorescent lamp began with the Geissler tube continued as even better vacuums were produced. The most famous was the evacuated tube used for scientific research by William Crookes. That tube was evacuated by the highly effective mercury vacuum pump created by Hermann Sprengel. Research conducted by Crookes and others ultimately led to the discovery of the electron in 1897 by J. J. Thomson and X-rays in 1895 by Wilhelm Roentgen. But the Crookes tube, as it came to be known, produced little light because the vacuum in it was too good and thus lacked the trace amounts of gas that are needed
The Amazing Race (Latin America) The Amazing Race (Latin America) The Amazing Race, formerly known as The Amazing Race en Discovery Channel (), is a reality game show based on the American series of the same name, "The Amazing Race". On 15 October 2008, a Latin American version of the show was announced by Discovery Channel Latin America in association with Disney. The first season was produced by Argentinian television production company RGB, while the second season was produced by Venezuelan television company Cinemat. On 25 January 2011, it was announced that Space in association with Disney was going to produce the third season of