Melodale, Those substances are known as "liquid crystals". So cold equals black and hot equals white. Interesting concept.
Frank -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] Behalf Of melodale190 Sent: Tuesday, August 16, 2005 6:04 AM To: [email protected] Subject: [microhydro] Phase change color surfaces This may be a little off the beaten track, but it pertains to the need for energy production. What ever happened to the toy cars that would significantly change colors when handled due to the temperature differences? It seems such a good idea for several purposes. If a building could be a reflective white during the heat of summer and then change to a more absorbent shade during the cold of winter it would save energy. Where are the paint chemists and what is happening in this field? Melodale Does your company feature in the microhydro business directory at http://microhydropower.net/directory ? If not, please register free of charge and be exposed to the microhydro community world wide! NOTE: The advertisements in this email are added by Yahoogroups who provides us with free email group services. The microhydro-group does not endorse products or support the advertisements in any way. More information on micro hydropower at http://microhydropower.net To unsubscribe: send empty message to [EMAIL PROTECTED] SPONSORED LINKS Energy Science Microhydro Energy drink Energy healing Energy star ---------------------------------------------------------------------------- -- YAHOO! GROUPS LINKS a.. Visit your group "microhydro" on the web. b.. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. ---------------------------------------------------------------------------- -- [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/FGYolB/TM --------------------------------------------------------------------~-> Does your company feature in the microhydro business directory at http://microhydropower.net/directory ? If not, please register free of charge and be exposed to the microhydro community world wide! NOTE: The advertisements in this email are added by Yahoogroups who provides us with free email group services. The microhydro-group does not endorse products or support the advertisements in any way. More information on micro hydropower at http://microhydropower.net To unsubscribe: send empty message to [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/microhydro/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
