A clip in the Science Please! collection, Operation Lever uses archival footage, animated illustrations and amusing narration to explain how a lever increases force.
A clip in the Science Please! collection, Operation Lever uses archival footage, animated illustrations and amusing narration to explain how a lever increases force.
RUNTIME
N/A minRELEASED
Jan 1, 2000COUNTRY
US
N/A minRELEASED
Jan 1, 2000COUNTRY
US
