How tiny drones inspired by bats could save lives in dark and stormy conditions

Researchers at Worcester Polytechnic Institute are developing tiny drones inspired by bats for search and rescue missions.
Digital Photography Review on MSN

Cracking the Canon code: what letters like VCM, RF-S and DO tell you about your lens

Image: Canon As with other brands, Canon's lenses feature many letters and acronyms in the lens names. Seeing something like ...