Rayleigh at Wray Castle

The National Trust's Wray Castle by Windermere using to be a Merchant Navy college and the rooms are named after physicists who worked on related areas. I teach Rayleigh's criterion (see http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/raylei.html) but reading about him, I notice that he won the Nobel Prize for discovering Argon. He used the idea of Rayleigh scattering to explain why the sky is blue. This is a brilliant explanation of what is going on if you carry on down through the articles  http://hyperphysics.phy-astr.gsu.edu/hbase/atmos/blusky.html#c3 The actual equation for Rayleigh scattering is hideous but seems to be crying out for some spreadsheet analysis when I have time. I like the diagrams showing the difference with Mie scattering. The issue seems to be that Rayleigh scattering is fairly uniform in all directions whilst Mie scattering massively favours the forward direction.