Big Bang at the atomic lab after scientists get their maths wrong -- Signs of the Times News:
"A £2 billion project to answer some of the biggest mysteries of the universe has been delayed by months after scientists building it made basic errors in their mathematical calculations.
The mistakes led to an explosion deep in the tunnel at the Cern particle accelerator complex near Geneva in Switzerland. It lifted a 20-ton magnet off its mountings, filling a tunnel with helium gas and forcing an evacuation."
Safety photos and a few safety jokes - Original jokes are copyright