March 28

To fight temperatures that can reach 122°F (50°C), robotic clouds will float above Qatar to shade the stadiums during World Cup play.   According to TIME, “The clouds are essentially massive blimps, filled with helium, and will be floated above stadiums.  Four onboard solar-powered engines will allow the clouds to be controlled from the ground, shifting along with the sun’s zenith, serving as a huge umbrella in the sky to shade spectators and athletes.”   Cost: $500,000 each.   Read more at