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"  Chris Hadfield, the exuberant Canadian astronaut and International Space Station commander, is turning out to be quite the YouTuber. If you&amp;#039;re not subscribed to the Canadian Space Agency&amp;#039;s channel, you need to get on that. Need convincing? Here are a few gems: 1. The Informative What&amp;#039;s it like to cook in space? Hadfield&amp;#039;s happy to show us in his new cooking show. In his first episode, the astronaut prepared a peanut butter and honey sandwich with one notable substitution. Instead of bread, which produces crumbs that could get into equipment on the ship, astronauts eat tortillas.      You can also find out how astronauts complete such tasks as shaving, sleeping, and brushing their teeth. We can only hope that the &amp;quot;vacuum cleaner&amp;quot; Hadfield says he uses to clean his mustache will make an appearance soon. In another video, Hadfield answers a student&amp;#039;s question about how the human body is affected by life on ISS. He explains that eyesight is a concern, and shows off some cool equipment used for measuring changes in the optic nerves. Fun fact: Astronauts don&amp;#039;t need gel for the ultrasound they use on their eyes. They just squirt some water into their eyelids and let it float there. Speaking of floating balls of eye-water, he also has a video about how astronauts cry in zero gravity. But don&amp;#039;t worry\u2014the tears aren&amp;#039;t real. Or so he says.      Occasionally he shows off how some actual experiments on ISS work. Somehow, not as exciting as watching him wring water out of a towel. Water is zero-g: It&amp;#039;s amazing.      2. The Entertaining You should definitely check out Hadfield&amp;#039;s musical performance with Ed Robertson of Barenaked Ladies. The oh-so-cleverly named I.S.S. (Is Somebody Singing) will make even the most diehard American feel pangs of Canadian patriotism. This is nothing new\u2014the CSA also uploaded a video of Chris Hadfield playing guitar on Russian space station Mir back in 1995. Not into music? Watch Hadfield hamming it up with Captain Kirk:      3. The Silly. The Very Silly For your entertainment, Hadfield also dresses like a mime and waltz around ISS with a space suit. There&amp;#039;s Chris playing with floating items like and mixed nuts. So get yourself to YouTube and learn something\u2014or just watch &amp;quot;The Hadfield Shake&amp;quot;:      "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/space/a8834/you-should-be-watching-astronaut-chris-hadfields-youtube-videos-15367986/>