Earlier this week, one of the world's largest nuclear reactors was sidelined by waves of jellyfish that came out of the sea.
The jellies have since been removed from the Oskarshamn nuclear plant in Sweden, but the threat remains.
What the world needs now, according to Korean scientists, is hunter-killer robots to take out the jellyfish. They've built prototypes that shred the gentle creatures at the rate of one ton an hour. … Read more