The 120th anniversary of the X-ray, and how it changed our world
November 2015 marks the 120th anniversary of the x-ray by German physics professor Wilhelm Roentgen! Learn more here: http://goo.gl/919WCK
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November 2015 marks the 120th anniversary of the x-ray by German physics professor Wilhelm Roentgen! Learn more here: http://goo.gl/919WCK