A working Lego particle accelerator NOV 25 2014
Huh. Someone built a working particle accelerator out of Lego bricks. Ok, it doesn't accelerate protons, but it does spin a small Lego ball around the ring much faster than I would have guessed.
Update: I stand corrected, the Lego particle accelerator does indeed accelerate protons, just a lot of them very slowly, accompanied by all manner of other particles.