Push and pull : simple machines at work
Titre:
Push and pull : simple machines at work
Sommaire:
Examines the lever, the wheel and axle, the pulley, the inclined plane, the screw and the wedge. Each is fully explained.
Date de publication comme intervalle:
1990
Description matérielle:
1 videocassette (22 min.) : sd., col. ; 3/4 in. ; VHS.
Terme de vedette-matière:
Informations de publication:
1990 Rainbow Educational Video & Cochran ; ACCESS Network
