Why is it like this in the nook?

[ion]

A little OT but what kind of camera did you take the picture with?

Here's a picture from my home, taken with a flir t660, which also shows the phenomenon of colder corners.

In the upper picture, there is an external wall on the left and an internal wall on the right.

[image]

That's what I mean, why is it also colder in the corner of the internal wall? The proposed theory falls apart because of that?