How Silly String Works

Silly String - Silly String is strong enough to rest on a thin wire without breaking but light enough not to weigh the wire down.
February 27, 2007 11:03am CST
In December 2006, news agencies reported that American and British troops in Iraq had developed an inventive method for finding tripwires: spraying Silly String. What does it take to make strands of material that are cohesive enough to loop over thin wires without breaking, but light enough not to spring the traps? Find out.
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