February 1, 2009 Here's an interesting idea for those readers out there facing bleak winter conditions to ponder. The Roofus robot concept will diligently wipe snow from rooftops, carting loads of up to 250kg to the edge and dumping it over the side. And though the robot, designed by Michal Glogowski, is primarily intended for work on icy surfaces, it can also be fitted with lawn mowing blades and sweeping attachments, making it a useful design throughout the whole year.

The 220 pound Roofus rides on caterpillar tracks, is powered by two electric motors, and uses sensors on either side of its body for autonomous navigation.