On Tue, 24 Jul 2001, Eugene Leitl wrote:
On Mon, 23 Jul 2001, Jim Choate wrote:
Maybe. But even mirrors can be burned through by a laser. And then we've
Jim, why are you trying so hard to make a complete fool out of yourself, in a public forum?
A chemical laser needs active optics to track your remote target. What do you think that optics is made from, unobtainium? Do you understand basic laws of optics? I recommend purchasing a 15 W laser (and a pair of matching protection goggles), and then use it to ignite a match from a close distance, and then over a few km, preferably during summer in your native Texas. You could target the beam towards a projection wall, and watch it with a pair of binoculars. It will be quite instructive.
The optics used for focusing are NOT mirrors, they are (hopefully) transparent at the frequency under use. A mirror on the other hand is required to be OPAQUE with respect to transmission, we want full, 100%, reflectivity. That means that every photon that hits that mirror interacts, loses some energy, and gets re-emitted. I have a half dozen lasers, thank you very much. -- ____________________________________________________________________ Nature and Nature's laws lay hid in night: God said, "Let Tesla be", and all was light. B.A. Behrend The Armadillo Group ,::////;::-. James Choate Austin, Tx /:'///// ``::>/|/ ravage@ssz.com www.ssz.com .', |||| `/( e\ 512-451-7087 -====~~mm-'`-```-mm --'- --------------------------------------------------------------------