Physics for Nick and R.L.
Nick and R.L seem to have some problems in understanding certain laws of physics.
I suspect that the reason in Nick’s case is that if he stuck his head into a perfect vacuum his skull would not expand or experience any pressure difference, on the other hand R.L.’s problem seems to be that his skull has expanded to the limit and is already under such high internal pressure that if he would ascend a little higher into the atmosphere his head would surely explode.
Keep smiling
Johannes