Understanding Air Density

A classic science experiment helps Mike Bettes and Tom Niziol explain the Science Behind air density.

[comfunc]

They should have done the cold air simulation first. Then the dye could have been progressing down the tube while they were doing the hot air simulation and talking.

[fractalnomics]

And the red shows how CO2 lasts for years in the atmosphere (even if its room temperature density is much denser than the coldest air on earth).