Tuesday, March 31, 2009


Slinky was invented by Naval engineer Richard James. He knocked a spring off of a shelf when he was working to develop springs that could keep ship instruments stable in choppy waters. The spring did what a Slinky does… it stepped down to a stack of books, then to the table, and then to the floor, where it righted itself into a cylinder. James knew it would be a great toy, and tests by neighborhood kids proved him right.

1 comment:

Jesus Aguado said...

Me encanta la publicidad antigua, perfecta para hacer collages!!