|Did you know?... The German physicist Wilhelm
Röntgen is credited with inventing x-rays.
The letter "x" was given to x-rays to signify an unknown quantity. The details
of this dramatic discovery are not known, as
Röntgen had his lab notes burned at his death.
X-ray research was proved to be dangerous after the death of Clarence Dally.
Dally tested X-ray tubes on his hands, a practice that resulted in cancer and
the amputation of both his hands as well as his subsequent death.