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One very dry demo

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    I'm here to show you
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    how something you can't see can be so much fun to look at.
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    You're about to experience a new, available
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    and exciting technology that's going to make us rethink
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    how we waterproof our lives.
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    What I have here is a cinder block
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    that we've coated half with a nanotechnology spray
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    that can be applied to almost any material.
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    It's called Ultra-Ever Dry,
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    and when you apply it to any material,
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    it turns into a superhydrophobic shield.
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    So this is a cinder block, uncoated,
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    and you can see that it's porous, it absorbs water.
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    Not anymore.
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    Porous, nonporous.
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    So what's superhydrophobic?
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    Superhydrophobic is how we measure
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    a drop of water on a surface.
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    The rounder it is, the more hydrophobic it is,
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    and if it's really round, it's superhydrophobic.
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    A freshly waxed car, the water molecules slump
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    to about 90 degrees.
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    A windshield coating is going to give you about 110 degrees.
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    But what you're seeing here is 160 to 175 degrees,
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    and anything over 150 is superhydrophobic.
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    So as part of the demonstration,
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    what I have is a pair of gloves,
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    and we've coated one of the gloves
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    with the nanotechnology coating,
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    and let's see if you can tell which one,
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    and I'll give you a hint.
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    Did you guess the one that was dry?
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    When you have nanotechnology and nanoscience,
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    what's occurred is that we're able to now
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    look at atoms and molecules and actually control them
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    for great benefits.
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    And we're talking really small here.
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    The way you measure nanotechnology is in nanometers,
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    and one nanometer is a billionth of a meter,
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    and to put some scale to that,
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    if you had a nanoparticle that was one nanometer thick,
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    and you put it side by side, and you had 50,000 of them,
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    you'd be the width of a human hair.
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    So very small, but very useful.
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    And it's not just water that this works with.
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    It's a lot of water-based materials like concrete,
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    water-based paint,
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    mud,
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    and also some refined oils as well.
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    You can see the difference.
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    Moving onto the next demonstration,
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    we've taken a pane of glass and we've coated the outside of it,
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    we've framed it with the nanotechnology coating,
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    and we're going to pour this green-tinted water inside the middle,
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    and you're going to see, it's going to spread out on glass
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    like you'd normally think it would,
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    except when it hits the coating, it stops,
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    and I can't even coax it to leave.
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    It's that afraid of the water.
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    (Applause)
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    So what's going on here? What's happening?
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    Well, the surface of the spray coating
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    is actually filled with nanoparticles
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    that form a very rough and craggly surface.
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    You'd think it'd be smooth, but it's actually not.
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    And it has billions of interstitial spaces,
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    and those spaces, along with the nanoparticles,
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    reach up and grab the air molecules,
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    and cover the surface with air.
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    It's an umbrella of air all across it,
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    and that layer of air is what the water hits,
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    the mud hits, the concrete hits, and it glides right off.
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    So if I put this inside this water here,
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    you can see a silver reflective coating around it,
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    and that silver reflective coating
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    is the layer of air that's protecting the water
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    from touching the paddle, and it's dry.
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    So what are the applications?
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    I mean, many of you right now are probably going through your head.
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    Everyone that sees this gets excited, and says,
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    "Oh, I could use it for this and this and this."
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    The applications in a general sense
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    could be anything that's anti-wetting.
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    We've certainly seen that today.
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    It could be anything that's anti-icing,
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    because if you don't have water, you don't have ice.
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    It could be anti-corrosion.
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    No water, no corrosion.
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    It could be anti-bacterial.
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    Without water, the bacteria won't survive.
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    And it could be things that need to be self-cleaning as well.
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    So imagine how something like this
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    could help revolutionize your field of work.
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    And I'm going to leave you with one last demonstration,
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    but before I do that, I would like to say thank you,
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    and think small.
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    (Applause)
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    It's going to happen. Wait for it. Wait for it.
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    Chris Anderson: You guys didn't hear about us cutting out the Design from TED? (Laughter)
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    [Two minutes later...]
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    He ran into all sorts of problems in terms of managing the medical research part.
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    It's happening!
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    (Applause)
Title:
One very dry demo
Speaker:
Mark Shaw
Description:

Mark Shaw demos Ultra-Ever Dry, a liquid-repellent coating that acts as an astonishingly powerful shield against water and water-based materials. At the nano level, the spray covers a surface with an umbrella of air so that water bounces right off. Watch for an exciting two-minute kicker.

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Video Language:
English
Team:
closed TED
Project:
TEDTalks
Duration:
05:31
Thu-Huong Ha edited English subtitles for One very dry demo
Thu-Huong Ha approved English subtitles for One very dry demo
Thu-Huong Ha accepted English subtitles for One very dry demo
Thu-Huong Ha edited English subtitles for One very dry demo
Joseph Geni edited English subtitles for One very dry demo
Joseph Geni added a translation

English subtitles

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