Air is a good insulator hence cavity walls

Yeah, but then science and maths is all small numbers and jobby! I think it just comes down to the grades of metal used, you could have some really high quality stainless, and some shitty grade titanium and they would be fairly similar, but reverse that and you have quite a big difference.A1ex wrote:I remember those days, just![]()
Compared to stainless there isnt much in it