LongPen is a new remote-controlled pen that allows writers to sign books for fans from thousands of miles away.

This is how t works, The author scribbles a message using a stylus pen on a computer tablet. On the receiving end, in another city, a robotic arm fitted with a regular pen signs the book.

LongPen produces an unique signature each time because it copies the movement of the author in real time.

LongPen Demo here and here.

Source: Yahoo!
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