Paul
'Unhinged? don't think so look at a video from Rolls Royce doing a PPI check on a gas turbine and watch it glow white!'
This made me chuckle somewhat? Okay Unhinged was a bit strong...sorry. It's been a very interesting debate though.
As a final if somewhat moot point. I've no need to watch videos of Rolls Royce engines since I worked on making enough of them during my apprenticeship not to mention much larger gas turbine and nuclear reactor chambers. Try going beyond white hot - to a point where the castings become so translucent that you can literally see through them!
This is real enginering - practice meeting science!