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How To Make Electronic Displays With Mood Ring Ink

Posted by timothy on from the cheap-tricks-are-the-best-kind dept.

Soychemist writes "Print some thermochromic ink onto a sheet of paper, put metal heating elements on the other side, and you have a rudimentary color-changing display. Chemists in the Whitesides Group at Harvard think that the devices could be used to provide a simple readout from cheap medical tests and kits that check water for pollutants. In the past year, the same scientists have made a three-cent medical test and improvised a centrifuge with an egg beater. Their aim is to invent useful gizmos with everyday materials."

3 of 33 comments (clear)

  1. first! by Anonymous Coward · · Score: -1, Offtopic

    Employees always reading Slashdot, getting first posts, when they should be slaving away on the next release of your shitty, proprietary, Windows-only codebase?

    You need a team -- whipping -- system!

    This first post was brought to you by: Micrososft Windows Live(tm) Visual Bing Team System Vista Enterprise Ultimate Edition Express. Just ask the coach, "Hey coach, how do I get on the cheerleading team?"

    1. Re:first! by Anonymous Coward · · Score: -1, Offtopic

      That this was modded off-topic is indicative of how few people view the adverts on Slashdot. It's worth switching them on just to view the ghastly Microsoft Team System ads (whatever the heck a 'Team System' is supposed to be), in my opinion.

  2. The other what? by __aajfby9338 · · Score: 0, Offtopic

    Print some thermochromic ink onto a sheet of paper, put metal heating elements on the other, and you have a rudimentary color-changing display.

    Soychemist accidentally a noun.