How Silly Putty Works
They say necessity is the mother of invention , and for Silly Putty , the strange material that ship in an egg and behaves sometimes like a liquidity and other times like a solid , necessity total in the form of Imperial Japan . In the early 1940s , as Germany waged war in Europe , the Empire of the Sun invadedrubber - producing countries such as Thailand , Malaysia and the Philippines , cutting off supplies to the West ....