So you think capacitive screens are all the rage, well wait till you get hold of what Nokia is up to back in their hometown Finland. Their research labs in Tampere have come up with a unique kind of touchscreen made of ice. It works with the help of infrared sensors combined with a projector that's hooked up to a computer. This is obviously not a practical solution for actual gadgets but it's certainly a great tool for Interactive Advertising especially in countries that witness snowfall for most of the year. Check out the video below.
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