Mark Rober

Former NASA engineer. Current YouTuber and friend of science. Answers to some common questions: 1) I studied Mechanical Engineering in School. I did my under...

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Using Drones to Plant 20,000,000 Trees

Join #TeamTrees at https://teamtrees.org/ Create your own personal website at...

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200 dropped wallets- the 20 MOST and LEAST HONEST cities

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Package Thief vs. Glitter Bomb Trap

This might be my Magnum Opus. Please see my comments below with regards to...