SALEM, Ore. (AP) -- A World War II scientist was looking for ways to produce synthetic rubber when, by accident, he invented a classic American toy. The pinkish, stretchy stuff that became known as ...

Opinions expressed by Entrepreneur contributors are their own. Sorry to burst your bubble, kids, but there’s really nothing that silly about Silly Putty. Not when you think about all you can do with ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. It’s easy to dismiss Silly Putty as a kid’s toy. But the ...