Oh, liguid helium, that's fun stuff. Hard to keep around though. Ciao, Graywolf http://pages.prodigy.net/graywolfphoto
----- Original Message ----- From: "Herb Chong" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, January 10, 2003 5:44 PM Subject: Re: Re: Can digital capture do TIME exposures? > Message text written by INTERNET:[EMAIL PROTECTED] > >Really I meant to ask what it had to do with photography, last time i > heard > they use it to break into safes and locks, and cut warts off too< > > oh, all right. they refrigerate the digital sensor and the amplifiers to > lower thermal noise. works best on a 6m telescope, however, those are the > people able to afford liquid helium instead. > > Herb.... >
