One city skyline is dazzling enough. Now imagine 15,000 of them. Researchers have done just that -- drawing 15,000 identical skylines with tiny beams of light using an innovative nanofabrication ...

With the advent and proliferation of tablets, using a pen to annotate or even sketch is becoming more and more useful, if not necessary. Enter the Space Pen. Now, you can sketch or annotate 3D models ...

A light-sensitive stylus wired to a video terminal used to draw pictures or select menu options. The user brings the pen to the desired point on screen and presses the pen button to make contact.