Been pretty sick for quite a few days now and skipped heaps of uni... And I was so bored lying in bed daydreaming. And, here's what I've got out these days, about the warmth of 3 quilts, the arranging.
Let's assume quilts 1, 2 and 3, same materials, thickness 1+2=3. Arrangement 12 means quilt 1 is inside with quilt 2 on top, 21 means quilt 2 inside with quilt 1 on top. Simple huh?
Which one's warmer, 123 or 321?
123 definitely. Heat loss rate 1>2>3 no doubt? Heat loss from 3 is easier to go through 2 and 1 than heat loss from 1 to go through 2 and 3, as simple as that. We could go further. The space between two quilts stores heat that is lost from the bottom quilt but not able to go through the top one, the heat is easier to go through the thinner layer than the thicker layer, and if you like, consider the heat between itself as one layer, isn't it warmer when the layer of heat is closer to you?
Does 1+2=3?
No. You could think of it simply because 12=/=21=/=3. Don't mean either 12 or 21 is warmer than 3 though. The opposite. 3 is solid thickness of 3 while either 12 or 21 is not. Think of the heat layer again, yes some of the heat might go back down but there's not as much thickness above to prevent it from the loss.
Conclusion, 1<2<21<12<3<31<13<32<23<321<312<231<213<132<123. Well, not quite a conclusion like that yet, this one is based on the speculation that thickness being the first rule. If not things will be different.
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