serving as eyes so that when the shaft turns, the rotary motion of the stub can be changed into reciprocating motion of the reciprocating plate and rod which, in turn, cause the rocking chair to sway back and forth, and the eyelids to open and close as though the doll rocker is sleepy...
slab10(blue). The slab was bolted to two shake tables (gray), which could move back andforth11." src="/upimg/allimg/20070203/1044212.gif" border="0" /> This illustration shows, layer by layer, how the test house was constructed. The house rested on a concrete slab (blue). The slab...
slab10(blue). The slab was bolted to two shake tables (gray), which could move back andforth11." src="http://www.enread.com/upimg/allimg/20070203/1044212.gif" border="0" /> This illustration shows, layer by layer, how the test house was constructed. The house rested on a concrete ...