Mr Burns
New member
I hold my hands to that one. I fully understand what you are saying, but you have to cut me a little slick, it was 1am when I posted that.Sorry Mr Burns but you made a schoolboy error there. You have to allow for the degrading luminance of the floodlights in the West stand as these generally are different due to all the hot air dissipated from underneath. You need to add this line at the end pi/D^2 * c/pi/R^2 = c/(D^2*R^2) lux. Please note though that this does NOT take into account any chromaticity changes of the South stand beer lighting!!!
Its a very interesting point about the beer lighting. I had overlooked the possibility of the bar lights being dimmed or off although if they brought the shutters down after half time. Any someone confirm if the lights are switched off or dimmed during the game in the concourse, so I can update the tactic diagrams for the players.