A Nokia research lab team in Tampere, Finland has built a touchscreen out of ice. While this never probably makes it into “full production”, it is a nice experiment by the team to see how people behave and use the interactive device. The setup involves lots of ice, near infrared cameras, a projector and a personal computer. The cameras followed hand movements on the ice, while the projector projected whatever the program on the PC was running.
“This was a playful experiment, but one that we think showed interactive computing interfaces can now be built anywhere,” says Jyri Huopaniemi, whose team built the device. The experiment was titled Ubice or ubiquitous ice.
Source: New Scientist