Pulleys

Pulleys

DVD - 2003
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The inhabitants of Mammoth Island are trying to find the best method to lift their mammoths when a young Islander uses a simple machine called a pulley to get the job done. A pulley is a wheel that carries a rope, chain or cable on its rim and can be used alone or with other pulleys to lift heavy loads.
Publisher: Wynnewood, PA : Schlessinger Media, [2003], c2002.
Series:
ISBN: 9781417100682
1417100680
Call Number: PULLEYS
Characteristics: 1 DVD (13 min.) : sd., col. ; 4 3/4 in. + 1 teacher's guide.
Subjects: Nonfiction films.
Video recordings for the hearing impaired.
DVD, Juvenile.
Power transmission.
Physics.
Simple machines.
Pulleys.
Physics -- Juvenile films.
Power transmission -- Juvenile films.
Simple machines -- Juvenile films.
Pulleys -- Juvenile films.
Alternative Title: Way things work : pulleys [DVD]

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