Ok...
First, I have googled previously on this subject, and indeed found the link you provided. I have not found a website that explains why this happens though, which is why I posted here.
I think I understand the concept now after sleeping on it. For example:
A pressure cooker operating...
When operating a pressure cooker (autoclave) at high altitudes, why is it necessary to adjust pressure or cooking times to maintain the target temperature ? The weight of the ball that holds in pressure is still the same, therefore temperature and pressure should be the same. At 15psi the...