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Classic Radiometer Tube

Classic Radiometer Tube

1.00 LBS
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Product Description

Classic Radiometer Tube:

Conect our Radiometer Tube to a high voltage power DC supply (best used with a Classic Induction or Ruhmkorff Coil) , and watch the mica paddle wheel spin in a cloud of cathode rays! As electrons, (a.k.a. cathode rays) are passed through the tube, the mica turbine inside begins to spin due to radiometric effect. 

Our Classic Radiometer Tube demonstrates radiometric effect as a stream of cathode rays contact one side of the the paddle wheels vein. As electrons heat the turbine's surface, a small pocket of warm air is produced. This slightly warmer air is just enough to make rotational motion. 

Everyone has seen a Light Mill or Radiometer in their science class room, but very few people realize that Sir. William Crookes developed the radiometer tube before he concieved the Light Mill.

About the Classic Radiometer Tube:

  • Requires a high voltage DC power supply. Works best with an induction coil or ruhmkorff coil. 
  • Create an Aurora Borealis at home that is guranteed to make people smile!
  • Each Radiometer Tube is hand made by a skilled artisan. Individual tubes may vary.
  • Bulb constructed of glass, paddle wheel of mica. 
  • Scientifc greats such as Tesla, Edison and Hertz would find this demonstration very familiar.

Operating the Classic Radiometer Tube: 

  • Operating this tube is very simple and requires a high voltage DC power supply and alligator clip leads. 
  • Connect the tube to power supply via alligator clips and watch striking green and purple plasma spin the paddle wheel!

Sir William Crookes began investigating vacuum tubes in the 1850's and soon developed unique innovations and stylings which took his name. Sir. Crookes' tubes are glass vessels containing low pressure air and electrodes meant to be connected to a high voltage power supply. The Crookes tube mimics what happens during the northern lights, electrons being passed through low pressure air.

During the turn of the last century, cathode ray tubes were a source of great entertainment for the average person, and led to the discovery of X-rays and the development of television. 

Product Videos

Radiometer Tube - Active Statics ()
  • Radiometer Tube - Active Statics

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