The hubble has several instruments onboard that are used for making observations, but the primary device is optical. More information is available here: http://oposite.stsci.edu/pubinfo/ and more specifically here: http://www.stsci.edu/hst/ To try and keep this at least a little on-topic, you can find images taken by the HST and other sources for use as desktop backgrounds to help make X pretty at: http://www.space.com/php/multimedia/imagegallery/ Ok, not really on-topic, but I tried... Jeff On Fri, 10 Aug 2001, 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! ------ >