Great gimmicky zipper on Google's homepage today. Drag the mouse down and it reveals search results for its inventor, Gideon Sundback, who was born on this day 132 years ago. Many people over many years had worked on the idea of a 'separable fastener with interlocking teeth' but it was Sundback who had it all zipped up in 1917 with Patent # 1,219,881. What an invention! They still get stuck though.