Typed strangely ergonomic

As soon as I passed for the section of pictures, I thought it was well the face of DD and brought for here. It is treated of a gallery with the strangest keyboards developed until today.
I remember that there are some years ago I was fascinated by those keyboards ergonomic parties to the middle, it believed that could improve my fingering using one of those. I gave up the idea. But for who thinks in ” comfort “, is afraid of READING or it is simply eccentric, those keyboards are a good one asked: