Roy Lowry, a professor at Plymouth University (a fantastic professor, as far as we can tell), has created a video that demonstrates one of the dangers of good old LN. Put it in a confined space, and it tends to find its way out, rather energetically. Here, ping pong balls are the only victims of the explosion:
The last time I saw this many ping-pong balls they were in zero gravity.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.