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Magic Sand

Posted by Hemos on from the flowing-nicely dept.

fist_187 writes "Here's a link to an interesting chemistry video about "magic sand", a hydrophobic solid. I've seen something like this done before with a certain type of pollen. But, this is the first demonstration I've seen that uses a material actually more dense than water."

3 of 37 comments (clear)

  1. I had some of this as a kid... by NetRanger · · Score: 3, Funny

    Did you know that it effectively kills goldfish too?

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    -- We live in a world where lemonade is artificial and soap has real lemon.
  2. Coming up next on Slashdot... by presearch · · Score: 4, Funny

    An in-depth investigation of corn starch!

  3. OMG, you whippersnappers... by SmokeSerpent · · Score: 2, Funny

    If you've never seen Magic Sand, you'll be amazed at this other amazing thing we used to have. It's like a flattened sphere divided in two around its equator. The two halves are connected by a metal spindle, to which a string is connected. You wind the string around the spindle and by flicking your wrist just so, you can inject momentum into the system, allowing the device to unwind and rewind on the string continuosly.

    You can even do tricks with them.

    Don't get me started on the "Magic Rocks"...

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    All kings is mostly rapscallions. -Mark Twain, The Adventures of Huckleberry Finn