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Mark Rober
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Mark Rober

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Here's how to make a Snowball Machine Gun that can fire 13 snowballs in 1/2 seconds. It's a must have in any respectable Uncle's arsenal.
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Here's a cool watermelon trick to make you the #1 food bringer at your Labor Day picnic this weekend.
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Thanks for the idea. We did this for our church picnic. It wasn't very difficult at all. We would love to send you pictures of our finished project. 
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Here is an idea I've had for a while now. I hope you guys like it. Be sure to sign the petition in the video description if you want one!
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Defiantly signed
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I got to go back and see all my buddies at NASA yesterday for our annual Pumpkin Carving contest. Each year continues to be even more ridiculous and amazing than the previous... 2014 was no exception. If you guys heart me, go download a free audio book using the link!
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makes no sense
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Hello internet friends. This is a crazy easy way for someone to steal your pin code using an iPhone but it's equally easy to thwart. Spread the word so the thwarters are greater than the stealers.
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Yeah. at least We got it in color :P ( I do realize it had been made dozens of years after colored movies.)
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This is a great idea.  Fun summer project.
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Mark Rober

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Here are 4 steps to defog your windshield twice as fast in the morning and the science behind why it works. Thanks for watching from the bottom of my nerdy heart.
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Another knowledge bomb dropped by Mark (Watney) Rober :)
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If you've ever wondered how to safely land an egg from a 3 story bridge, I've got you covered in this video. My next video will be about inventing a time machine so I can go back to my High School Physics class to secure the Egg Drop Competition title.
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+Mark Rober How man straws did you use for the straw idea?
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Hey friends!  If you want to be the best guy or girl at your Christmas Party this year I've gotchyo back.  As always, thanks for watching and even sharing if you think it's super cool.

Mark Rober

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Hey Internet friends. Been working on these ideas all year. Watch the video and f you feel we earned it, I would love it a bunch if you shared this with your friends and social networks and stuff. The success of my Halloween wares helps to support all the other videos I do throughout the year. Oh, and Happy Freaking Halloween!!!
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Where can I get the iron man shirt??
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Next time you're cliff jumping and you want to know how high the cliff is, let science and your watch do all the work... then lie about it on YouTube like 80% of the general population.
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Another well earned standing ovation for Jeff.  Easily one of the coolest, most articulate and brightest guys I know.
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Have him in circles
1,857 people
Jean Paredes's profile photo
Gurshant Grewal's profile photo
Tim Whybrow's profile photo
wutduhhel's profile photo
Khaled Claude's profile photo
Idris Busari's profile photo
Ginger Hiro's profile photo
Kun Peng's profile photo
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