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Ramps and wedges

Oxlade, Chris2004
Books, Manuscripts
Many simple machines are taken for granted. How would we manage without wheels, pulleys, ramps, wedges or screws? These are all types of machine. They make it easier to do something. This series explores a range of similar devices at a level suitable forchildren working at Key Stage One.
Main title:
Ramps and wedges / Chris Oxlade.
Imprint:
Oxford : Heinemann Library, 2004.
Collation:
32 p. : col. ill. ; 22 cm.
Notes:
Originally published: 2003.Includes bibliographical references and index.
ISBN:
04311790269780431179025
Dewey class:
621.8'11J621.811J608531
Local class:
J621.811
Language:
English
BRN:
261759
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