does density influence free-fall ?
Channel: The WhatIf Experiments
Date: 2022-04-03

A simple syringe piston is used to extrude and seal the low pressure in the attached chamber (magnified in the figure). This could achieve up to one tenth of ambient Torr. The stage floor has a small dent in each sub-chamber to align the initial positions. To avoid parallax error the dents may be aligned at radially same distance from camera lens. The subjects shown left to right have the following mass (A = 1.6, B = 130,  C = 4164) in mg, and the following densities (9.42, 7.95, 7.87) in g/cm3