Gideon Sundback's 132nd Birthday

In just two days after the Earth Day doodle, Google has placed yet another interesting doodle on its homepage. This time round, its a huge zipper that unzips itself when clicked, splitting the whole homepage into two (kindda like tearing a piece of paper into halves).

Apparently, this doodle serves to celebrate the 132nd birthday of Gideon Sundback, a Swedish-American electrical engineer who developed the zipper.