When Soviets have decided to explode the Tsar-Bomb
http://en.wikipedia.org/wiki/Tsar_bomb
Initial agenda was to get 100MT, but
Andrei Sakharov, was scared about the fact that it could start to consume the oxygen and go on, consuming all oxygen we have - so he told that 50Megatons will be OK to scare capitalists

During the explosion the energy released was 15% more than design - oxygen?
Who will be a smart guy now?
That bomb have produced:
Since 50 Mt is 2.1×1017 joules, the average power produced during the entire fission-fusion process, lasting around 39 nanoseconds, was about 5.4×1024 watts or 5.4 yottawatts. This is equivalent to approximately 1.4% of the power output of the Sun.
I don't want that collider to start, really.