Fatemisience Posted August 24, 2005 Share Posted August 24, 2005 I am looking for liquids or substances that turn black when heated. I know anything can be burned, but i want something that would turn black on a controlled bases. or perhaps something that would turn black due to the reaction of positve or negative charges? Link to comment Share on other sites More sharing options...
Locrian Posted August 24, 2005 Share Posted August 24, 2005 Coffee? What you are asking for fate sounds like a liquid crystal display, or LCD screen. They are clear until you pass a current through them, at which point they become opaque. So it is a controlable change. Link to comment Share on other sites More sharing options...
MetaFrizzics Posted August 24, 2005 Share Posted August 24, 2005 I am looking for liquids or substances that turn black when heated. I know anything can be burned' date=' but i want something that would turn black on a controlled bases.or perhaps something that would turn black due to the reaction of positve or negative charges?[/quote']Do mean 'turn black' in the sense of changing from a surface that reflects some light to one that reflects none? Or do you mean a substance (liquid?) that allows light to pass through it, but under certain conditions blocks light? You can accomplish the latter mechanically with polarized filter orientations. Link to comment Share on other sites More sharing options...
Fatemisience Posted August 25, 2005 Author Share Posted August 25, 2005 what i am actually looking for a a clear liquid that will turn black when appravated by apositive or a negative charge. does that make any sense? Link to comment Share on other sites More sharing options...
MetaFrizzics Posted August 25, 2005 Share Posted August 25, 2005 The latest technology is 'carbon TV': Carbon TV New liquids are being patented all the time and can probably be bought: New liquid crystal display Link to comment Share on other sites More sharing options...
Fatemisience Posted August 26, 2005 Author Share Posted August 26, 2005 i am not really looking for something with electricity going continuos more something that can be made permenent after this reaction...maybe a liquid coating that drys up, and reacts some how and turns black.... Link to comment Share on other sites More sharing options...
YT2095 Posted August 26, 2005 Share Posted August 26, 2005 how about a suspension of Silver Chloride? Link to comment Share on other sites More sharing options...
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