00:07ترجمة نانسي قنقر
00:30And it's compacted.
00:32It's put down into this little tiny hockey puck so that it saves space.
00:37But when you open up a hockey puck and you pull out your washcloth,
00:46this is the one I'm going to use for the experiment today.
00:52And so when you open up your hockey puck and turn it into a washcloth,
00:56it was compressed in a great big vise somewhere.
01:00Okay, so here's my washcloth, like a magic trick.
01:04And now I'm going to get this soaking wet,
01:07and then we're going to see what will happen when we wring it out.
01:12Meredith and Kendra suggested that I dip this in a bag,
01:16but bags don't hold water in space, so instead I filled a water bag.
01:20This has drinking water in it.
01:24And I'm going to squirt a bunch of water into this washcloth.
01:46Okay.
01:46So here's a soaking wet washcloth.
01:50Get the microphone so you can hear me while I'm talking.
01:53And now let's start wringing it out.
01:58It's really wet.
02:15It's becoming a tube of water.
02:20The water is all over my hands, in fact.
02:22It wrings out of the cloth into my hands.
02:24And if I let go of the cloth carefully, the water sort of has it stick to my hand.
02:33Okay, so the experiment worked beautifully.
02:36And the answer to the question is the water squeezes out of the cloth,
02:40and then because of the surface tension of the water,
02:44it actually runs along the surface of the cloth and then up into my hand,
02:49almost like you had jello on your hands or gel on your hand,
02:54and it'll just stay there.
02:55Wonderful moisturizer on my hands.
02:58And the cloth doesn't really unravel itself.
03:01It just stays there floating like a dog's chew toy, soaking wet.
03:06Great experiment.
03:08Worked perfectly.
03:09Meredith and Kendrick, congratulations.
03:11Great idea.
03:13Great idea.
Comments