Join 3,380 readers in helping fund MetaFilter (Hide)


"Two droplets merge to form one larger droplet"
October 13, 2010 9:29 PM   Subscribe

Water Droplet Bouncing on a Superhydrophobic Carbon Nanotube Array [SLYT]
posted by IvoShandor (28 comments total) 21 users marked this as a favorite

 
I'm just glad they used a carbon nanotube array, because when I first read that headline I was like, "Oh my God, they used a superhydrophobic nanotube array and they didn't use carbon? Those stupid, stupid fucks." But then I saw I had just missed it and it clearly says carbon right there.

No seriously that was pretty cool though.
posted by kbanas at 9:35 PM on October 13, 2010 [5 favorites]


That's a hell of a song title, and the video is already made. Someone get on that.

awesome
posted by davejay at 9:40 PM on October 13, 2010


I can just picture the scientists thinking: "Well, we filmed water dropping off this stuff at high speed, but we still have high-speed camera for another two days. What now" "Dude, lets make a half pipe" and then "Let's make two droplets crash into each other"
posted by delmoi at 9:40 PM on October 13, 2010 [3 favorites]


It is really bizarre to see water droplets bouncing like rubber balls.
posted by Chocolate Pickle at 9:44 PM on October 13, 2010


If you like the OP's video, here's some more materials-from-the-future porn: Steel Ball Bouncing on "LiquidMetal."
posted by The Potate at 9:54 PM on October 13, 2010 [3 favorites]


The Potate: Can I get some strings for my tennis racket made out of that stuff?
posted by cccorlew at 10:05 PM on October 13, 2010


What happens when you coat a ship or submarine's hull with the stuff? Or a torpedo?
posted by LordSludge at 10:07 PM on October 13, 2010 [1 favorite]


I had fun making "spwshhh" sounds whenever there was splashing.
posted by XMLicious at 10:08 PM on October 13, 2010 [4 favorites]


So what, exactly, does superhydrophobic mean? I mean water is polar and you can obviously have some things that are more polar than others, but what does more non-polar mean?
posted by Kid Charlemagne at 10:15 PM on October 13, 2010


This reminded me of the computer game "Gish". I could practically hear the music!
posted by brundlefly at 10:21 PM on October 13, 2010



I can just picture the scientists thinking: "Well, we filmed water dropping off this stuff at high speed, but we still have high-speed camera for another two days. What now" "Dude, lets make a half pipe" and then "Let's make two droplets crash into each other"


Nah, here's what scientists do when they have the high speed camera for two extra days.
posted by pombe at 10:36 PM on October 13, 2010 [8 favorites]


So what, exactly, does superhydrophobic mean?

Wikipedia has a pretty nice article on this called Superhydrophobe. The classic demonstation of this with a natural material are the leaves of the lotus flower.
posted by RichardP at 10:44 PM on October 13, 2010


Hey, cool! A labmate worked on superhydrophobic nanofibres and would amuse us with bouncing droplets, but we didn't have no fancy high speed camera to film it with. Oh, Science.
posted by beepbeepboopboop at 10:58 PM on October 13, 2010


On that LiquidMetal video, why didn't they also use a ball made out of LiquidMetal and blow EVERYONE's mind?!
posted by Phantomx at 11:12 PM on October 13, 2010


What happens when you coat a ship or submarine's hull with the stuff? Or a torpedo?

Regrettably it would wear off in next to no time. There are lots of great ways to make super-hydrophobic surfaces. They usually rely on very rough surfaces (at the micro-scale), unfortunately it's almost impossible to make these surfaces very abrasion resistant. So most of them can be rubbed off with a finger. You usually have to reduce the hydrophobicity quite a lot to get something durable - then you start to get something like RainX. Not nearly as cool, but at least a product with some utility.

One cool place for these kind of coatings is on the inside of medical tubes like catheters. They reduce infection because no beasties can stick to them.
posted by Long Way To Go at 11:13 PM on October 13, 2010 [1 favorite]


So you know how sometimes you can be listening to some music and watching some videos and the picture and sound magically synchronize into an accidental ballet of subtle delight? That happened to me with this! So I puttered around and recreated the experience for you all.

Most relaxing, thank you.
posted by Mizu at 11:37 PM on October 13, 2010 [2 favorites]


So you know how sometimes you can be listening to some music and watching some videos

You know what, the damnedest thing just happened.
posted by dubusadus at 1:03 AM on October 14, 2010


I don't think they could slow down the two-droplets-merging bit enough for me. It's absolutely fascinating to watch the surface tension overcome the momentum of each drop and somehow hold together, and then watch as they spin back towards each other. Brilliant.
posted by disillusioned at 2:06 AM on October 14, 2010


> So what, exactly, does superhydrophobic mean?

Super: well above average
Hydrophobia: rabies

Clearly, this is some kind of germ warfare project.
posted by davelog at 3:52 AM on October 14, 2010 [2 favorites]


Like water off a duck's superhydrophobic carbon nanotube array.
posted by Greg Nog at 4:45 AM on October 14, 2010 [2 favorites]


This work was supported by the Fletcher Jones Foundation? Either it's a different Fletcher Jones or we're all living in an Alec Guinness film.
posted by hawthorne at 5:26 AM on October 14, 2010


So what, exactly, does superhydrophobic mean?

Bruce Willis in Unbreakable.
posted by ROU_Xenophobe at 5:47 AM on October 14, 2010


I ♥ surface tension.
posted by kittyprecious at 6:30 AM on October 14, 2010 [1 favorite]


"Your mom's a superhydrophobic carbon nanotube array."

I love you, Youtube.
posted by nebulawindphone at 6:33 AM on October 14, 2010


Sorry, but I keep hearing that title being sung to the tune of "Chimpanzee Riding On A Segway"
posted by briank at 6:36 AM on October 14, 2010


So when can I get my superhydrophoic carbon nanotube raincoat?
posted by slogger at 7:17 AM on October 14, 2010


I also came in here to make a rabies joke.
posted by Burhanistan at 7:40 AM on October 14, 2010


Hurray for the confluence of science and art! Think I'll spend the rest of the day drawing bouncing water droplets. Hello, sketchbook; goodbye to the spreadsheet entitled "Scheduled Changes to Converted Audio/Webinar Content Guides, Handbooks, and New Materials."
posted by S'Tella Fabula at 11:06 AM on October 14, 2010


« Older The Chicago Tribune, which has been having a few p...  |  Danakil Desert ; 1938 - Dinner... Newer »


This thread has been archived and is closed to new comments