A new study looked beneath blacked-out portions of letters to see if a relationship with a Swedish count was more than a friendship.
New tool for artists can paint, erase and change the color of strokes on a metal canvas.
Scientists use ordinary equipment to reveal a hidden picture based on its shadow.
New research finds the optical effect previously produced using strictly quantum techniques may have broader applications.
Researchers provide a blueprint for a tiny device that can control the direction of light.
The 2-ton, 11-foot high tower of glass was first installed in 1859 and still guides ships today.