The wedge /
Armentrout, Patricia,
The wedge / Patricia Armentrout. - Vero Beach, Fla. : Rourke Press, c1997. - 24 p. : col. ill. ; - Simple devices .
Includes index.
Text and pictures introduce the wedge, a simple machine placed between objects to split, tighten, or secure a hold.
1571031812
Wedges
Wedges.
621.8
The wedge / Patricia Armentrout. - Vero Beach, Fla. : Rourke Press, c1997. - 24 p. : col. ill. ; - Simple devices .
Includes index.
Text and pictures introduce the wedge, a simple machine placed between objects to split, tighten, or secure a hold.
1571031812
Wedges
Wedges.
621.8