Watch This Robotic Intestine Puke Rocket Fuel

IEEE Spectrum Robotics 

This is literally a robotic intestine puking rocket fuel. It's being developed in Japan, by roboticists from Chuo University and JAXA, the Japan Aerospace Exploration Agency. You'll be relieved to learn that it's a robotic intestine puking rocket fuel with a purpose: It's designed to replicate the peristaltic motion of a real intestine in order to gently mix ingredients to make solid rocket fuel. The researchers say their machine is safer than conventional mixers because the fuel doesn't experience high shear stress inside the undulating rubber tubing and is never in contact with metal, avoiding the risk of fire and explosions. The idea is to turn the solid rocket fuel manufacturing process into a continuous operation rather than a discrete one, replacing rocket fuel mixing bowls that give you fuel in batches with a system that can just continuously pump out fuel instead.