A half-filled waterbed with added magnesium salts turns out to be a pretty good equivalent of weightlessness. This ground-based 'Hyper Buoyancy Facility' is used by a team at @KingsCollegeLon testing an astronaut 'Skinsuit': https://t.co/munGPZ0aWK pic.twitter.com/BYPzRfP7NA

— ESA Technology (@ESA_Tech) February 21, 2018