The wedge
By: Patricia Armentrout.
Series: Simple devices
Publisher: Rourke Press
Published: 1997
Place of publication: Vero Beach, Fla
Language: eng
Number of pages: 24
Subjects: Wedges -- Juvenile literature.; Wedges.
Description: Text and pictures introduce the wedge, a simple machine placed between objects to split, tighten, or secure a hold.
Notes: Includes index.