We’ve seen all kinds of robots lately but some of them are more usefull than others. For example this wall climbing robot has incredible practical applications. The Waalbot as it is named can climb walls due to some special material applied to it’s legs. This material has this tiny “legs” on all of it’s surface which stick really well to the surface. Currently the technical dificulty is that the same robot cannot climb different kind of surfaces, so you got a smooth surface climbin Waalbot, another one for rough surfaces.

But the designers think that this problem can be solved by developing a new “sticking” material that will be applied on the robots legs. Just imagine the practical applications of something like this: the robot could go into tight spaces inspect pipes, structures, wires.
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Wall Climbing Robot Could Come In Handy: [Link]