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Laser Camera Helps Preserve Historical Buildings

Restoring a historic building to its original shape usually starts with taking detailed measurements of all of its elements - doors, windows, stairs, chimneys - so they can be taken apart, repaired or replaced with their exact replicas.  But exact measurements that used to take months can now be done in a few days, thanks to the advanced technology of laser cameras. An experimental project is being conducted at a historic location on a hill overlooking Washington, D.C. The beautiful...

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