Mechanical advantage
Titre:
Mechanical advantage
Sommaire:
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.
Date de publication comme intervalle:
1992
SERIES_EPSB:
Description matérielle:
1 videocassette (15 min.) : sd., col. ; 3/4 in. ; VHS.
Informations de publication:
1992 ACCESS Network
