Youtube activity of "" (@ronjon7942) on "SmarterEveryDay" channel.
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- 19
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Comments by video
"I Was SCARED To Say This To NASA... (But I said it anyway) - Smarter Every Day 293"
"Where does NASA keep the Moon Rocks? - Smarter Every Day 220"
"КАК ДЕЛАЮТСЯ РАКЕТЫ (Rocket Factory Tour - United Launch Alliance) - умнее каждый день 231"