We've all felt that frustration waiting for an elevator to come to our floor, "why isn't one coming in my direction?" Well it turns out there's quite a lot of decision making going on behind the scenes, particularly in large busy buildings with banks of elevators. Popular Mechanics recently published an article called The Hidden Science of Elevators that explores this tech. Thanks to my colleague, Bob Doran, for spotting this piece.
from The Universal Machine http://universal-machine.blogspot.com/