Mechanical advantage
Title:
Mechanical advantage
Summary:
Two friends apply some basic physics principles in order to invent and construct a device for delivering newspapers safely to customers' doorsteps. They illustrate the principle that complex machines are combinations of simple ones.
Year Published:
1992
Series:
Physical Description:
1 videocassette (15 min.) : sd., col. ; 3/4 in. ; VHS.
Publisher:
1992 ACCESS Network
