How Levers Help Us
1970-01-01⭐ 0.0🕒 11 mins
This instructional film shows the three parts of a lever and demonstrates how various levers help to move things more easily, or move them farther and faster.
#Documentary
This instructional film shows the three parts of a lever and demonstrates how various levers help to move things more easily, or move them farther and faster.
WEED
1971-01-23
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