A Mathematical Theory To Prove The Brits Waste Sunlight!
bodmas.org � Blog Archive � Altitude of the Sun and Moon: "full astronomical twilight is never quite reached in the Summer months in the UK."
This is a really Lunatical use of Excel, and the theory explained proves that the Brits can't be utilising all the sunlight at their disposal if they are so lilly white and tanless. Maybe it always cloudy and raining? And all on an excel spreadsheet!