Tuesday was the ninth annual Silly Putty Drop, the day when N.C. State science and engineering summer campers see what happens when you drop a 100-pound ball of silly putty from the top of D.H. Hill ...
What happens when you throw a 100-pound ball of silly putty off of a 141-foot tall building? This. Tuesday was the ninth annual Silly Putty Drop off of D.H. Hill Library's bookstack tower at N.C.
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