Yesterday I was reading the paper version of The Independent. I was intrigued by a British experiment of the 1930’s where over 150 schools taught pupils outside in all weathers in the belief that “fresh air” would prevent TB. You can read the online version of that article here. Today I had a taste of that myself as I struggled to write Javscript at my laptop while local double glazing company Polarglaze replaced all my windows. In what must be the coldest day of the year so far, snow frequently blew in the house. The new windows are as great as the old ones were bad. The old ones were just 3mm thick in bare aluminium frames and were frequently covered in condensation. The new ones are Pilkington K “bounce the heat back into the room” jobbies in smart white frames.