Use the timeline below to select up to 20 seconds to watch or share.
4.09sto the first scientist who can solve this problem once and for all.
0.66s
2.62sLovely, aren't they?
2.69sSapphires?
3.04sWith those, I could open the Gate of Girash!
2.82sFirst up is Professor Ogden Wornstrum.
0.7s
0.87s
1.37sWornstrum!
0.56s
0.84s
3.07sAhem. Ladies and gentlemen,
2.23sI have placed in orbit a giant mirror...
4.35sthat will reflect 40 percent of the sun's rays, thus cooling Earth.
1.65sObserve.
1.31s
0.63s
2.71s
0.55s
1.81s
2.54s