Mechanical advantage
Título:
Mechanical advantage
Resumen:
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.
Fecha de publicación como intervalo:
1992
SERIES_EPSB:
Descripción física:
1 videocassette (15 min.) : sd., col. ; 3/4 in. ; VHS.
Información de publicación:
1992 ACCESS Network
