With the advancement of science and technology, robot design has become increasingly advanced and intelligent, but it cannot do without its hard steel body. A team from the UCLA Mechanical Laboratory designed BALLU, a robot that relies on buoyancy to move. Its body is a silver body filled with helium Balloon, two long legs as thin as steel wires. After careful debugging by the developers, BALLU can walk in a semi-suspended state without falling or floating. . Although he is not as strong and powerful as other robots, he can enter some dangerous areas for detection work. Official website: http://www.romela.org/
