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
Kevin Roentgen Kevin Roentgen Kevin Roentgen (pronounced rent-gehn) is a singer/songwriter/producer and formerly guitarist for UK Platinum, Brit Award-winning American rock band Orson, who is currently based in Nashville, TN. Roentgen is previously known for fronting L.A. rock bands American Pearl (Wind-Up Records), SOUL (Elektra Records) and Goldsboro. Following the break-up of American Pearl, Roentgen spent most of 2003 in the studio writing and demo-ing new songs. The result was Praying Hands, "The Acoustic EP", recorded and co-produced by Noah Shain at White Buffalo Studio in Hollywood. In 2005, Roentgen joined L.A. band Orson as a guitarist. In 2006, Orson released their