Unless that dog was coated in http://videosift.com/video/Superhydrophobic-and-Oleophobic-Coating-Repels-Liquid, then she got wet. Still, well done.

>> ^nomino:

Imagine if these nano particles made it inside the blood stream.


I'm trying to, but I'm not sure I can.

>> ^nomino:

This can't be healthy. Imagine if these nano particles made it inside the blood stream.


It's risky, but it's another way of becoming a Superhero/villain.

Your video, Superhydrophobic finger in water looks cool, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

http://xkcd.com/1082/


>> ^Porksandwich:

Watching someone finger water...... deeper and deeper.
Just needs a soundtrack.

Tags for this video have been changed from 'superhydrophobic, water, finger' to 'superhydrophobic, water, finger, hydrophobic, waterproof' - edited by lucky760

>> ^mizila:

>> ^jimnms:
If they coated boat hulls with this stuff, would they cut through the water more efficiently?

No, that's how you make hovercrafts. :-P
But seriously, smooth hulls are actually bad for speed. Ideally you want little pockets of air to make a good boundary for the laminar flow of water going past. Some people even sand the hulls of their racing boats. Think about the dimples on a golf ball, same idea. Although it'd be an awesome product for the windshield of a boat. =)


Yep good point, and if you look at/touch shark skin, it's essentially sand paper; helps them move faster through water apparently.

>> ^jimnms:

If they coated boat hulls with this stuff, would they cut through the water more efficiently?


No, that's how you make hovercrafts. :-P

But seriously, smooth hulls are actually bad for speed. Ideally you want little pockets of air to make a good boundary for the laminar flow of water going past. Some people even sand the hulls of their racing boats. Think about the dimples on a golf ball, same idea. Although it'd be an awesome product for the windshield of a boat. =)

>> ^quantumushroom:

It's easier to type WITCHCRAFT! Also acceptable: SORCERY!
>> ^juliovega914:
For those of you interested in the actual mechanics of the superhydrophobicity, I direct you to this wiki:
http://en.wikipedia.org/wiki/Lotus_effect
Basically, the reason its so repellent isn't due to a hydrophobic coating, but rather the development of a surface nanostructure that has sharp angles and points in such a way that the surface tension of water binding to the surface is less than the attraction of the dipoles of the water molecule to other water molecules. As a result of this, the water forms globules on the surface rather than running off the side.


Don't forget the ever popular "God did it", Jesus probably coated his feet with this shit.

It's easier to type WITCHCRAFT! Also acceptable: SORCERY!

>> ^juliovega914:

For those of you interested in the actual mechanics of the superhydrophobicity, I direct you to this wiki:
http://en.wikipedia.org/wiki/Lotus_effect
Basically, the reason its so repellent isn't due to a hydrophobic coating, but rather the development of a surface nanostructure that has sharp angles and points in such a way that the surface tension of water binding to the surface is less than the attraction of the dipoles of the water molecule to other water molecules. As a result of this, the water forms globules on the surface rather than running off the side.

For those of you interested in the actual mechanics of the superhydrophobicity, I direct you to this wiki:

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

Basically, the reason its so repellent isn't due to a hydrophobic coating, but rather the development of a surface nanostructure that has sharp angles and points in such a way that the surface tension of water binding to the surface is less than the attraction of the dipoles of the water molecule to other water molecules. As a result of this, the water forms globules on the surface rather than running off the side.

>> ^Drachen_Jager:

When they get a process going that can make carbon nanotubes at industrial volumes it will be as significant (if not more) than the development of steel. This is THE materials science breakthrough of our generation.
A 1 mm thick nanotube wire could hold 6,000 KG of weight. It is thirty times stronger than Kevlar and nearly a hundred times stronger than the finest steel.


This is without even bringing to light their electrical properties. They have a chirality induced band gap, so they can be either semiconductive or metallic based on structure. They are absurdly thermally and (in the case of metallic tubes) electrically conductive, due to ballistic conductivity. Electrical current densities are theorized to be more than 1000 times greater than copper. They truly are a miracle material. Biggest problem is the safety issues and cost of production.

Congratulations! Your video, Water Droplet Bouncing on a Superhydrophobic Nanotube Array, has reached the #1 spot in the current Top 15 New Videos listing. This is a very difficult thing to accomplish but you managed to pull it off. For your contribution you have been awarded 2 Power Points.

This achievement has earned you your "Golden One" Level 6 Badge!

A visual representation of his explanation of one being akin to the other.

http://vimeo.com/groups/3114/videos/8069853


>> ^EDD:

gnarly. you seem to know your carbon nanotubes, so care to explain how the potential projected practical applications of graphene stack up to them?