National Geographic - How Hard Can It Be?
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How many balloons could lift up a house just like in the Pixar film Up? Or how high could a rocket reach that's made only from material bought at a hardware store? Using a combination of hard science and innovative visuals How Hard Can It Be? is a fascinating three-part series that designs and performs these and other fun, jaw-dropping experiments.
Featuring: DIY Robo sub, Flying House, Homemade Rocket