This water display is really cool! It is made from Japan and it displays not just letters or numbers but graphics. It uses the technology of a printer that sprays water on it's nozzles and with the software and integrated materials, it displays an amazing display of graphics.

In Osaka, Japan, they use this in terminals as clock and short information to keep the travelers away from boredom. It's sort of a amusement and to attract tourists.

What do you think, is it worth a material?