TECHNOLOGY REVIEW
September/October 2011
By Jeniffer Chu
The T station at Kendall/MIT fills with the screech of an approaching train. As the doors open, riders spill onto the platform, and a small girl runs straight for a long silver lever mounted on the station wall. She pushes and pulls on the handle with a frenzy.
“You need to go slow,” says her mother. “You’ve forgotten—we haven’t done this in a while.”
At her mother’s suggestion, the girl slowly works the lever back and forth, and large mallets, suspended above the tracks, respond by swinging between heavy aluminum pipes. As the mallets make contact, the echoes of the departing train are replaced by the deep, mellow sound of bells. MORE….











