If true one can only 'assume' that you just haven't lived long enough yet or you haven't spent enough time outside in harsh weather or your just one who is able to blindly ignore extreme conditions.
You choose, as this is all very tiring and serves no purpose.
I'm ashamed that I got caught up in the game. I'll try not to let it happen again....NOT.
People surviving in a sleeping bag??? For how long? A few days at best. I just don't get the joke or the debate.
The 30 persons you mention in an un-heated house would all still be dead (frozen stiff) come Spring in North Wisconsin
Food + water + insulation = survival you dont need heat if you have enough insulation. See Iniut see laplander see polar expolartion... Read about the heroes of Telemark.
Amundsen walked to the south pole... he didnt fly and his stoves were to cook the food!
Bees and humans are heat engines that convert carbohydrates into energy, water and Co2, they have a limited range of heat loss they can sustain, It is ably demonstrated by human emdeavour that they can survive given sufficient insulation, food and water. Scientific studies have shown bees can do it given suffiencent insulation food and water.
The point is of this thread is to provoke thought and reasoning about the environment you provide to your bees not to rely on proverbs.
Reasoning will result in You providing your bees with both
insulation and food. and understand that putting them a convection driven chiller is cruelty or a failure in reasoning
A 3/4" wooden beehive needs 6Watts for every degree C change in temp (only if you dont make into a U.S. beekeeping convection chiller it takes a lot more if you do). Commercial foam hives in Europe are 0.7 of a watt per degree C. It is easy to make a hive that is 0.25 Watt or lower for every degree C. That means you can have a hive where if the little buzzers wanted could be at 34C in the whole hive with it -40C outside.
I can go to my local builders yard and get materials and build a small box room in a cold store at -40C with a k value of just under 1 watt per degree C in which I would happily sit naked (with no heating) Supply me with food, water beer and a chemical toilet and a TV(low power LED). I use the same physics
T Beek I fear no word are going to convince you - why dont you do some experiments, with a 20w heater and a temperature probe and some insulation materials. Do not rely on proverbs and 100 year old practices