Japan has deployed a system that fires laser beams with 100 kilowatts of energy — powerful enough to disable small drones. It was installed on board a 6,200-ton (6.3 million kg) warship.

Robots small enough to travel autonomously through the human body to repair damaged sites may seem the stuff of science ...

This is one of those fun hacks that come about from finding a product and going “I wonder if I could…” — in this case, artist ...