Thornton, William E. (William Edgar), 1929-2016-03-312016-03-311972http://hdl.handle.net/2152.3/627Graph depicting the change in the CG/M from soles of feet for "PLT" (Simulation Pilot, Bo Bobko) throughout the SL-4 mission.Weightlessness--Physiological effect.Space flight--Physiological effect.Skylab Program.Space medicine.Center of Gravity/Center of Mass, SL-4 PLTImage