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Press Release 06-099
Protecting the Liberty Bell

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The Liberty Bell in the Liberty Bell Center.

The Liberty Bell in the Liberty Bell Center.

Credit: Photograph by Robin Miller, October 2003. Courtesy Independence National Historical Park.


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A close-up view of the MicroStrain NANO-DVRT wireless sensors clamped to the Liberty Bell.

A close-up view of the MicroStrain NANO-DVRT wireless sensors clamped to the Liberty Bell (the top and bottom sensors are the same design, but oriented perpendicular to each other). With even tiny motions of the crack-on the scale of millionths of a meter-the metal rod shifts its placement. The movement is detected by electrical coils, and that information is transmitted to a wireless receiver. The wires visible in this image are connecting the sensors to a wireless transmitter inside the Bell.

Credit: Photo Credit: Curt Suplee, National Science Foundation


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Riggers carefully position tackle that will be used to hoist the Liberty Bell.

Riggers from the George Young Co. carefully position tackle that will be used to hoist the Liberty Bell.

Credit: Photo Credit: Curt Suplee, National Science Foundation


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