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Chemical Reaction Changes Color Over and Over

Posted by timothy on from the note-gratuitous-but-accurate-dig dept.

DancingFountain writes "If you have taken a college chemistry class, you may have seen this fantastic demonstration. When two clear liquids are mixed, they immediately turn yellow, and then undulate back and forth between blue-black and yellow in a mesmerizing display. Wired Science explains that the reaction, which was developed by two high school science teachers, has been rigorously studied but not fully explained."

8 of 61 comments (clear)

  1. Just had to slip one in? by techpawn · · Score: 2, Funny

    Like Mitt Romney speaking on social issues, the undulating brew just can't make up its mind.
    did they HAVE to take a political jab in the science blog?
    --
    Ask not what you can do for your country. Ask what your country did to you
    1. Re:Just had to slip one in? by framauro13 · · Score: 5, Funny

      It's ok. Republican's don't believe in science. He'll never read this.

      --
      In an effort to conform with internet communication standards, please note that the above comment is 100% biased opinion
  2. Re:Huh? by SQLGuru · · Score: 1, Funny

    So, can you use this knowledge to make perpetual motion machine? From what I remember of my chemistry (granted, I only got a C and it was quite a few years ago), but chemical reactions give off heat.....and heat can be used to generate power.

    http://en.wikipedia.org/wiki/Perpetual_motion

    Layne

  3. WHAT ... is your favorite colour? by Colin+Douglas+Howell · · Score: 3, Funny

    Yellow. No, blue--AAAAAAAAHHH!

    [Too bad the movie has the colors in the opposite order.]

  4. News from before you were born. by siglercm · · Score: 3, Funny

    I knew I had seen something like this in an article I read... THIRTY YEARS AGO...

    http://amasci.com/amateur/sciamdx.html

    Search for "Chemical reactions, oscillating".

    Sorry, kiddies. Been there, done that. Still interesting, though.

    --
    sigfault (core dumped)
  5. Re:Huh? by Zaurus · · Score: 4, Funny

    Perpetual motion machines are flat-out impossible. ...unless you're raising a toddler.
  6. Re:Huh? by Lehk228 · · Score: 2, Funny

    go ahead and stop feeding him, the motions will stop in a few days.

    --
    Snowden and Manning are heroes.
  7. Re:Huh? by ceoyoyo · · Score: 3, Funny

    That's not perpetual motion. Have you noticed you're more tired since you had him? The energy has to come from somewhere you see. It just seems really impressive because you're big and he's little so when you put your energy in a little package it moves much faster.