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 Philm. In November 2012 and May 2013, Goldsboro toured the UK garnering them favorable reviews in UK publications Mojo Magazine, Classic Rock Magazine, Metal Hammer and Kerrang!, as well as airplay on XFM London and Radio 2. In 2017, Roentgen began playing guitar with L.A.-based rock band Buckcherry. Roentgen has also written and produced original music compositions for Fox TV promos including "New Girl, Ben and Kate, Enlisted, The Following, ADHD, Glee, Hell's Kitchen, Allen Gregory, American Idol, Lone Star, Chicago Code, Fringe, Bones, Cops, Empire, The Exorcist, Rosewood, Gotham, Ghosted and The Orville." Kevin Roentgen Kevin Roentgen (pronounced rent-gehn)