Robin van Spaandonk wrote: > In reply to Harry Veeder's message of Wed, 21 Feb 2007 21:20:29 -0500: > Hi, > [snip] >> The upper positive wire produces a positive ion cloud beneath so they repel >> each other. If I have understood the EHD account correctly, the force of >> repulsion is predicted to be greater than the force of attraction between >> the upper positive wire and the lower negative tube. As a result there is a > [snip] > The wire creates a positive cloud. The tube attached to the negative terminal > is > negative, and hence attracts the positive air cloud. This pulls the tube up, > and > the cloud down. When the positive cloud comes in contact with the tube, it is > neutralized, but the power source soon creates more positive ions around the > wire, and concurrently pumps more electrons into the tube.
Wouldn't this make the tube noticeably oscillate up and down? > The only force of repulsion is between the cloud and the wire, however this > pushes the cloud down, while the cathode pulls the cloud down. IOW both wire > and > tube work together, there is no opposing force. > Regards, > > Robin van Spaandonk Taken as whole this differs from Michel's explanation. Harry
