Off Topic — HabitableZone

Off Topic

Happy Birthday to the mouse

The mouse has come along way since 1970:

http://www.bootstrap.org/chronicle/pix/img0001.jpg


Douglas Engelbart received patent US3541541 on November 17, 1970 for a "X-Y Position Indicator For A Display System".

http://en.wikipedia.org/wiki/Computer_mouse

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