The question is if you get a cloth dripping wet without gravity, and you wring it out, what's gonna happen? What will happen to our wrung out cloth? So, I had to use equipment that was here on board the space station.
We may have the coolest washcloths ever here on the space station. I'm gonna show you. Here's one of our washcloths. And it's compacted. It's put down into this little tiny hockey puck so that it saves space. When you open up a hockey puck, and you pull out your washcloth...
This is the one I'm gonna use for the experiment today. And so when you open up your hockey puck and turn it into a washcloth... It was compressed in a great big vice somewhere. Ok. So here's my washcloth, like a magic trick. And now I'm gonna get this soaking wet, and then we're gonna see what will happen when we wring it out.
Meridith and Kendra suggested that I dip this in a bag, but bags don't hold water in space, so instead I filled a water bag. This has drinking water in it. And I'm going to squirt a bunch of water into this washcloth.
Okay. So here's a soaking wet washcloth. Get the microphone so you can hear me while I'm talking. And now let's start wringing it out. It's really wet.
It's becoming a tube of water. The water's all over my hands. In fact, it wrings out of the cloth into my hands. And if I let go of the cloth carefully, the water, sort of, has it stick to my hand. Okay. So the experiment works beautifully, and the answer to the question is the water squeezes out of the cloth, and then because of the surface tension of the water, it actually runs along the surface of cloth and then up into my hand, almost like you have jello on your hands or gel on your hands. And it will just stay there: wonderful moisturizer on my hands.
And the cloth doesn't really unravel itself, it just stays there, floating like a dog's chew toy, soaking wet. Great experiment, worked perfectly. Meridith and Kendra, congratulations! Great idea!