Simple Machines
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First published: 2013
1 language
ISBN: 9781432990091
Description
This title utilizes real-size photographs to teach young learners about simple machines. Instead of explaining in words alone how machines look and function, the book conveys information about scale, proportion, and use with accurately-sized photographs.
![[William Wheeler Hubbell, authorized to apply for patents.]](https://covers.openlibrary.org/b/id/10200621-M.jpg)
