Reg Butler
1) Wedges
Author
Series
Pub. Date
2013
Description
Presents a look at wedges, explaining how these simple machines work and describing some common examples, such as axes, that have been used throughout history.
2) Pulleys
Author
Series
Pub. Date
c2013
Description
Presents a look at pulleys, explaining how these simple machines work and describing some common examples that have been used throughout history.
3) Screws
Author
Series
Pub. Date
2013
Description
Presents a look at screws, explaining how these simple machines work and describing some common examples that have been used throughout history.
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