Ah , to throw the proverbial Monkey Wrench into the works Have you considered submergence in Water, Either Sea of Fresh? Since IR transmission in Water is minimal , Aquatic plants and animals exist in the ambient temperature. ( trying to raise body temperature in such a heat sink would be a tremendous energy cost ) Since there is no discernible infrared signature from the aquatic life, then by the logic would they not be considered dead? Russell Smith Ciba Specialty Chemicals ---------- From: Alain Savard To: [log in to unmask] Subject: Re: [TN] VOC legislation - evolved to dark Date: Wednesday, March 15, 2000 2:24PM By the same token if you are in total absolute darkness you automatically die. Here is why: Liveable atmosphere has an IR signature and so does the human body. This image signature is no visible to the unaided eye, but is still present. In the absence of any and all form of IR signature (Probably possible in an extremely well insulated enclosed empty container in deep space at absolute zero). So the kids are right... you should be afraid of the dark! Although it is unlikely to exist anywhere. Alain Savard, B.Sc. Chemical Process Analyst CAE Electronics Ltd. e-mail: [log in to unmask] -----Original Message----- From: Richard Tilbrook Subject: Re: [TN] VOC legislation - evolved to dark I would have thought that "dark" was just a concept, depending on what and how you are trying to "see". An image intensifier can help you "see" in light conditions so low you connot see with the naked eye. Alternatively no visible light is required to see with a thermal imager, but the thermal imager converts infra red radiation to visible light on a TV screen. Furthermore, a Magnetic Resonance Imager depends on the emission of something that can register in the electromagnetic spectrum (I forget if its a phonon or whatever) after application of a magnetic field. In summary, blah blah blah, I've successfully avoided the physics of it, but depending on how you look at things, you will never be in the dark! Richard ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ############################################################## ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################