tomcat wrote:

In the 50's and 60's Thomas Townsend Brown did extraordinary work with
'electrogravitics'.  Whether it allowed for right angle turns or not, I
don't know, but it would enable most of the 'saucer' effects associated
with ufo's.

I have heard of Brown (from physics texts). And I do not doubt that he built some devices that levitated using EM or electrostatic fields. But that is not the same as anti-gravity. Also if you do the math yes it is possible, for small masses. But when you get to something substantial then it becomes hopeless. However, if you can point me to a paper I'm quite willing to change my mind if the argument and the data support it.

Just read some of the technical bits of the website you suggested, and it is as I suspected using electrostatics using a very large charge in a capacitor.

From many of the reports it does look like there are very sizable EM fields involved, but is that the propulsion or a side effect? The only estimate I ever saw was by James E. Macdonald when he analysed a sighting by a scientist who happened to be wearing some polaroids and noticed the halo around the object contained polarised light. This suggested a value for the magnetic field that would be responsible for polarising the light. Don't remember what the value was, but it was very high. But magnetism wont work as a propulsion mechanism either.

regards,
Peter