The iPad mini is practically too small for a keyboard. But once you try one, you'll realize that it fills a practical gap in ...

Tsubasa Yumura, a computer science researcher in Japan, rigged up a keyboard that looks like it launches letters into the computer when they're pressed. It uses a technique called projection mapping.

Why stop at explaining rockets when you can build a keyboard that forces you to communicate like a ... Computer Letter Getter, there's something oddly charming about it. Just look at those endless ...