Re: Barometer woes
The barometer has a handful of tiny moving bits and bobs inside, all of which gum up. Any half decent instrument maker or watchmaker should be able to strip it down, clean up the bearing surfaces (ultrasound), lube and reassemble. Most likely it will be better than new.
This is standard practice for aviation altimeters.
All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence