From: "James Annan" <[email protected]> Newsgroups: gmane.science.general.global-change To: <[email protected]> Sent: Sunday, June 07, 2009 8:21 PM Subject: [Global Change: 3226] Re: Why not rooftops covered with infrared LEDs? an abstract in IEEE suggested ....
Michael Tobis wrote: >> http://parisetech.com/ECTecPaper.pdf >> > >Sorry, didn't realise you had actually found the paper until I did some >googling myself and got to the same point. I believe it's a form of >perpetual motion machine. In particular, the "cooler" relies on >radiating away energy in order to create a temperature differential >which can be used to generate sufficient energy to radiate away the heat >that passes through the generator. > >As such, I'm surprised it hasn't made a bigger splash with the >denialists... > >James HA HAR HAR! Thanks for a good laugh to start the day off. :-) My own favorite crackpot scheme along these lines is to generate electricity with IR photocells inside a power plant exhaust stack. I suppose you could feed it directly to rooftop IR LEDs to re-radiate as heat, with thermodynamic losses all along the way. The only possible use for the scheme would be to shift the IR wavelength to a band that is not already saturated. I'm foggy on the physics of what happens to the beam after it leaves the LED, but isn't there a very thick blanket of molecules to penetrate before reaching the black body of space? Maybe that's why superior crackpots prefer lasers - more punch to get through the fog. -dl --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/globalchange -~----------~----~----~----~------~----~------~--~---
