👉 A diffusimeter is a device used to measure the diffusion of substances in a fluid. It works by measuring the amount of substance that passes through a narrow opening or channel, and then comparing this measurement with an established reference value. This allows scientists to determine the concentration of a substance in a sample, which is important for many scientific applications such as toxicology, environmental monitoring, and medical diagnostics. The term "diffusimeter" was introduced by Dr. John E. Hahn in 1
