S01:E02 - Elastic Energy
(2013)
·
22 min
TV-Y7
Phil starts with a Popsicle stick catapult. Then he uses everything he knows about elastic energy to build a full-size catapult that hurls pumpkins! Plus, a maxed out paddle wheel boat and a historical re-enactment (sort of) of how catapults were used in medieval days.
Season 1
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