Come and learn how a traction elevator works! We'll also explore the history and different types of elevators. Elevators have been around for almost 2000 years. In the 1850s, Elisha Otis invented a ...

SAN FRANCISCO (KGO) -- Do all the buttons in an elevator work? Sometimes it seems like the elevator door stays open forever and there is a "close door" button for just those times, but does the button ...