Expedition 64 Flight Engineer Shannon Walker works in the European Columbus laboratory module to set up a unique device that calculates the mass of cargo aboard the International Space Station.
iss064e019119 (Jan. 4, 2021) — NASA astronaut and Expedition 64 Flight Engineer Shannon Walker works in the European Columbus laboratory module to set up a unique device that calculates the mass of cargo aboard the International Space Station. Known as SLAMMD, or Space Linear Acceleration Mass Measurement Device, it uses a form of Newton’s Second Law of Motion and applies a known force to an object or an astronaut with the resulting acceleration used to calculate mass in microgravity