Hothead no more
This is where I work. Looking at the photo I have just noticed that my armrests are not at the same level, maybe that's the cause of my back ache. To shine a bit of light on the situation I have the lamps positioned so that they throw light over my shoulder. The bulbs were, until today, of the standard 40W tungsten filament variety. They would give out rather a lot of heat which would be absorbed by my head until it got hot enough to emit the same amount of energy as it was receiving at which point equilibrium would be achieved. Wearing a white hat increased my albedo resulting in a lower temperature but my mother always said it was rude to wear hats indoors. Anyway, problem solved, I swapped the tungstens with a pair of LED bulbs, they still get hot but no where near as hot as the old ones. This is all well and good but winter is rapidly approaching and my study could do with a bit of extra warmth.