ALL SCI-FI

Pye-Rate · Starship Navigator Joined: 14 Dec 2013 Posts: 598

If only beach sand were this cooperative.

www.sciencealert.com/watch-completely-hydrophobic-sand-being-dropped-in-water

Bud Brewster · Posted: Fri Feb 13, 2015 12:46 am Post subject:

If anybody is too lazy to watch the video, here's the GIF version.

Blue powder poured into water. Strange gray glop suddenly appears. Spoon dips down into glop . . . and comes back up with bone-dry blue powder again! Shocked

Amazing stuff. Thanks, Pye-rate!

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Is there no man on Earth who has the wisdom and innocence of a child?
~ The Space Children (1958)

orzel-w · Galactic Ambassador Joined: 19 Sep 2014 Posts: 1865

That's a real hoot, all right. I assume that the appearance of the blue sand underwater is the result of an air jacket forming around the sand, the reflective properties of the air making it appear gray or silver.
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...or not...

WayneO
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Bud Brewster · Posted: Sat Feb 14, 2015 2:56 am Post subject:

Ah, but what is the RED "sand" that he sprinkles on top of the water at first? You have to watch the video (not just the gif) to see that clearly.
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Is there no man on Earth who has the wisdom and innocence of a child?
~ The Space Children (1958)

Pow · Posted: Sat Feb 14, 2015 9:51 am Post subject:

Mr.Wizard would love this.

Bud Brewster · Posted: Sat Feb 14, 2015 4:22 pm Post subject:

Yes, indeed he would. Waterproof sand. If you put this on beaches, sandcastles would be impossible to build. Shocked

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Is there no man on Earth who has the wisdom and innocence of a child?
~ The Space Children (1958)

scotpens · Posted: Sun Feb 15, 2015 12:03 pm Post subject:

And I thought this thread was going to be about rabies.