Four pulleys and a 120-pound weight offer visitors a test of strength as they discover leverage and how simple machines make heavy duty work much easier. As visitors use the levers closer to the weight, the weight becomes harder to lift.
3145 Hamilton Blvd. Bypass
Allentown, PA 18103
Mon.-Sat.: 10 a.m.-5 p.m.
Sun.: 12-5 p.m.
This project was financed by a grant from
D: 3145 Hamilton Blvd. Bypass, Allentown, PA 18103
H: Mon.-Sat., 10 a.m.-5 p.m.; Sun. 12-5 p.m.