> Taken as whole this differs from Michel's explanation. No it doesn't, this is exactly it. The only thing missing in Robin's excellent explanation is that the ion cloud in its downwards motion pushes against the neutral ambient air it ploughs through (otherwise there would be no net lift)
The tube doesn't oscillate because the process Robin described is continuous. Michel ----- Original Message ----- From: "Harry Veeder" <[EMAIL PROTECTED]> To: <vortex-l@eskimo.com> Sent: Thursday, February 22, 2007 8:57 AM Subject: Re: [Vo]: Tubular Lifter (again) > 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 >
