What does it take to move a magnet that weighs 15,000 lbs? Professionals from Medical Equipment Contractors Inc.

From left: Mike Messner, Nate Reiter (tan pants), Bobby Wolfgang (partially seen through the hole in the magnet) and Joe Sweeney Sr. (right) push the scanner from its base.

It's then moved out of the space it occupied and into the walkway.

And finally across the skybridge. The floors and bridge are reinforced to bear the weight of such equipment.

What stops 7 tons of magnet from rolling? A thin sheet of masonite board.

The magnet arrives at the back of the building, where one of the external panels is removed so it can be lifted down seven stories to the ground.

A crane lifts a metal platform that will be attached to the building so that the magnet can be rolled out and safely lowered.

The magnet is securely placed onto the platform.

The magnet begins its descent.

Almost to the ground. A new, more powerful scanner will be delivered by early summer.