Selectable Optical Diagnostics Instrument – Diffusion and Soret Coefficient (SODI-DSC): Today, a crewmember changed-out the memory flash disk from the SODI hardware. The Selectable Optical Diagnostics Instrument – Diffusion and Soret Coefficient (SODI-DSC) experiment will study diffusion in six different liquids over time in the absence of convection induced by the gravity field. Sally Ride …