Fact Files

The US military has enlisted a new germ-killing weapon in the fight against Ebola which is a four-wheeled robot that can disinfect a room in minutes with pulses of ultraviolet light. Sending out 1.5 pulses per second in a 10-foot (three-meter) radius, the robots use xenon, a non-toxic gas, to create the ultraviolet rays that eradicate germs faster and more ...