negative glow
11Crookes dark space — noun the dark space in a vacuum tube between the cathode and the negative glow, occurring when pressure is very low. Also, Crookes space, cathode dark space, cathodic dark space. {named after Sir William Crookes, 1832–1919, English chemist and… …
12Crookes space — or Crookes dark space «kruks», the nonluminous portion of an electric discharge between the cathode and the negative glow, present when the discharge takes place in a tube containing a gas at very low pressure. ╂[< Sir William Crookes, 1832… …
13Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
14STS-62 — Infobox Space mission mission name = STS 62 insignia = Sts 62 patch.png shuttle = Columbia launch pad = 39 B launch = March 4, 1994, 8:53:01 a.m. EST landing = March 18, 1994, 8:10:42 a.m. EST, KSC Runway 33 duration = 13 days, 23 hours, 16… …
15Crookes tube — A Crookes tube. The electrons travel in straight lines from the cathode on the left, shown by the shadow cast by the cross on the fluorescence on the righthand wall. The anode is at the bottom. A Crookes tube is an early experimental electrical… …
16Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …
17motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
18Jennifer Lopez — J.Lo redirects here. For the album, see J.Lo (album). Jennifer Lopez Jennifer Lopez, September 2009 Background information Birth name Jennifer Lynn Lopez …
19electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …
20Plasma (physics) — For other uses, see Plasma. Plasma lamp, illustrating some of the more complex phenomena of a plasma, including filamentation. The colors are a result of relaxation of electrons in excited states to lower energy states after they have recombined… …
