As you draw, plastic comes out of the pen, is cooled by an integrated fan, and solidifies right in front of you. You can draw on any surface and lift it up into the air to create your own 3D ...

Changes in how you draw could outline Alzheimer's risk, ... Those with dementia pause for longer when drawing, use the pen at a jerky speed and are more erratic in how hard they press down, ...

Now that's how to doodle: The incredible pictures that look like photographs drawn with a ballpoint pen. By LEON WATSON . Published: 05:43 EDT, 24 August 2012 | Updated: 09:51 EDT, 24 August 2012 ...