'Invisible' jellyfish-like 4.7-inch robot created, uses just 0.57% of phone charger's power
A Chinese university in Shaanxi has created a surveillance and stealth robot that measures just 4.7 inches and mimics the movements and appearance of a real jellyfish. It consumes just 28.5 milliwatts of power, which is about 0.57% of power a generic smartphone charger produces, and creates virtually no physical or acoustic disturbance. Its transparent body makes it nearly invisible.