digg

Join DiggAbout
See the original image at davidpace.com

Fancy Lightbulb Makes Plasma for Students

davidpace.com — Eleven tungsten wires glow white hot inside a vacuum chamber. They emit electrons that are accelerated into the conducting chamber wall by way of an applied voltage. As these electrons approach the wall they ionize background argon gas that was purposely leaked into the chamber. This produces a plasma that is studied as part of a lab course.

Bury
show profanity settings
expand all
  •  

    Login or register to add a comment

    Create a new account or login to join in the conversation on Digg. You'll also be able to Digg stories to help promote things you like.


© Digg Inc. 2008 — Content posted by Digg users is dedicated to the public domain.
DIGG, DIGG IT, DUGG, DIGG THIS, Digg graphics, logos, designs, page headers, button icons, scripts, and other service names are the trademarks of Digg Inc.