ZZZ's What are they good for?

So While going through the internet today I stumbled across this quiz on WebMD on sleep.  Sleep is one of those things that is important to humans functioning but science cant really explain why.  However I did find this quiz to be interesting and semi enlightening.

http://www.webmd.com/sleep-disorders/rm-quiz-sleep

Tank Busters and Weather Research

Link on an article of remodeled A-10 warplane for studying storms from the inside and how scientists hope that understanding storm development will better equip scientists to predict storms powerful storms in the future.

http://www.popularmechanics.com/science/environment/natural-disasters/weather-studying-warthog-a-fixed-up-a-10-will-fly-into-thunderstorms