Re: How insulation works
I know exactly how this works - this is about who's smarter, right? Well, the heat loss is directly proportional to the emissivity. If you double the emissivity you double the heat loss. If you decrease the emissivity by 10-fold, you decrease the heat loss by the same amount.
Therefore for an emissivity of 0.01 the heat loss for a 500-meter diameter sphere would be 3.282 MW. And for an emissivity of 0.001 the heat loss would be 328.2 kilowatts.