Placeholder Image

Subtitles section Play video

  • Translator: Joseph Geni Reviewer: Thu-Huong Ha

  • I'm here to show you

  • how something you can't see can be so much fun to look at.

  • You're about to experience a new, available

  • and exciting technology that's going to make us rethink

  • how we waterproof our lives.

  • What I have here is a cinder block

  • that we've coated half with a nanotechnology spray

  • that can be applied to almost any material.

  • It's called Ultra-Ever Dry,

  • and when you apply it to any material,

  • it turns into a superhydrophobic shield.

  • So this is a cinder block, uncoated,

  • and you can see that it's porous, it absorbs water.

  • Not anymore.

  • Porous, nonporous.

  • So what's superhydrophobic?

  • Superhydrophobic is how we measure

  • a drop of water on a surface.

  • The rounder it is, the more hydrophobic it is,

  • and if it's really round, it's superhydrophobic.

  • A freshly waxed car, the water molecules slump

  • to about 90 degrees.

  • A windshield coating is going to give you about 110 degrees.

  • But what you're seeing here is 160 to 175 degrees,

  • and anything over 150 is superhydrophobic.

  • So as part of the demonstration,

  • what I have is a pair of gloves,

  • and we've coated one of the gloves

  • with the nanotechnology coating,

  • and let's see if you can tell which one,

  • and I'll give you a hint.

  • Did you guess the one that was dry?

  • When you have nanotechnology and nanoscience,

  • what's occurred is that we're able to now

  • look at atoms and molecules and actually control them

  • for great benefits.

  • And we're talking really small here.

  • The way you measure nanotechnology is in nanometers,

  • and one nanometer is a billionth of a meter,

  • and to put some scale to that,

  • if you had a nanoparticle that was one nanometer thick,

  • and you put it side by side, and you had 50,000 of them,

  • you'd be the width of a human hair.

  • So very small, but very useful.

  • And it's not just water that this works with.

  • It's a lot of water-based materials like concrete,

  • water-based paint,

  • mud,

  • and also some refined oils as well.

  • You can see the difference.

  • Moving onto the next demonstration,

  • we've taken a pane of glass and we've coated the outside of it,

  • we've framed it with the nanotechnology coating,

  • and we're going to pour this green-tinted water inside the middle,

  • and you're going to see, it's going to spread out on glass

  • like you'd normally think it would,

  • except when it hits the coating, it stops,

  • and I can't even coax it to leave.

  • It's that afraid of the water.

  • (Applause)

  • So what's going on here? What's happening?

  • Well, the surface of the spray coating

  • is actually filled with nanoparticles

  • that form a very rough and craggly surface.

  • You'd think it'd be smooth, but it's actually not.

  • And it has billions of interstitial spaces,

  • and those spaces, along with the nanoparticles,

  • reach up and grab the air molecules,

  • and cover the surface with air.

  • It's an umbrella of air all across it,

  • and that layer of air is what the water hits,

  • the mud hits, the concrete hits, and it glides right off.

  • So if I put this inside this water here,

  • you can see a silver reflective coating around it,

  • and that silver reflective coating

  • is the layer of air that's protecting the water

  • from touching the paddle, and it's dry.

  • So what are the applications?

  • I mean, many of you right now are probably going through your head.

  • Everyone that sees this gets excited, and says,

  • "Oh, I could use it for this and this and this."

  • The applications in a general sense

  • could be anything that's anti-wetting.

  • We've certainly seen that today.

  • It could be anything that's anti-icing,

  • because if you don't have water, you don't have ice.

  • It could be anti-corrosion.

  • No water, no corrosion.

  • It could be anti-bacterial.

  • Without water, the bacteria won't survive.

  • And it could be things that need to be self-cleaning as well.

  • So imagine how something like this

  • could help revolutionize your field of work.

  • And I'm going to leave you with one last demonstration,

  • but before I do that, I would like to say thank you,

  • and think small.

  • (Applause)

  • It's going to happen. Wait for it. Wait for it.

  • Chris Anderson: You guys didn't hear about us cutting out the Design from TED? (Laughter)

  • [Two minutes later...]

  • He ran into all sorts of problems in terms of managing the medical research part.

  • It's happening!

  • (Applause)

Translator: Joseph Geni Reviewer: Thu-Huong Ha

Subtitles and vocabulary

Operation of videos Adjust the video here to display the subtitles

B1 TED coating water coated anti demonstration

【TED】Mark Shaw: One very dry demo (Mark Shaw: One very dry demo)

  • 2809 69
    Yu Shan Wei posted on 2016/10/26
Video vocabulary