The Hubble is an optical telescope in a vacuum. IT uses exposures of minutes or hours. As such, I find it hard to believe that the minute length of time a vacuum created by a laser beam (the specs of which I find impossible to believe anyway) would exist would be sufficient for an Earth-based telescope to generate a usable image. If you find the video tape, would you please post whatever reference data is avalable from it to the list (or e-mail it to me)? At the very least, the title, copyright date, and production studio? On Fri, Aug 10, 2001 at 10:17:06AM +0100, Andrew Nemchenko wrote: > The Hubble has nothing to do with it. Because they are not taking > pictures of the earth. If they were then they would have to be > shooting the earth with the Laser. Plus the hubble is not an optical > telescope as far as I can remember. I'll go to the Library and Will > try to dig up this video tape, maybe I'll bring it to an install > fest or something. > > Scott Raun wrote: > > > On Thu, Aug 09, 2001 at 04:00:32PM +0100, Andrew Nemchenko wrote: > > > No this is completly diffent the link you sent explains that they use a > > > laser to create an artificial dot in the sky and then they measure the > > > distortion in the atmosphere and use a flexible mirror to compensate for > > > this distorion, with the compensation the stars apper more clearly. What > > > I saw was completely different, they basically used a giant green colored > > > laser to burn a hole in the atmosphere, then for a very shor amount of > > > time they were able to take pictures through that hole with no > > > distortion. These are two different thngs. > > > > I'm going to take significant convincing to believe this one - do you > > have a reference on it? The period of time that a lightning strike > > makes a vacuum is going to be roughly analogous to this - your looking > > at a tenth of a second AT MOST! And the Hubble can't get a usable > > image that fast. I find it very difficult to believe that they get > > enough light down this little narrow pipe (it can't be more than > > inches across, and you usually measure professional telescopes in > > FEET!) > > > > -- > > Scott Raun > > sraun at fireopal.org > > _______________________________________________ > > tclug-list mailing list > > tclug-list at mn-linux.org > > https://mailman.mn-linux.org/mailman/listinfo/tclug-list > > > > ------ http://USFamily.Net/info - Unlimited Internet - From $8.99/mo! ------ Content-Description: Card for Andrew Nemchenko -- Scott Raun sraun at fireopal.org