A 6″ plastic disc supported by a loop of string passing through two holes drilled 1/2″ apart. 
Wind up first.
Location: C2-4
Wesleyan University Dept. of Physics
Wesleyan University Dept. of Physics
A 6″ plastic disc supported by a loop of string passing through two holes drilled 1/2″ apart.
Wind up first.
Location: C2-4