Weather glass

he weather glass is one of the oldest weather observation instruments.
Goethe busied himself with the study of air pressure using such a devise.
The position of the water in the glass tube reliably indicates all changes in air pressure.


  1. These gadgets used to freak me out as a kid when there were tornado warnings. When the water started coming out of the spout, I thought that meant there was a tornado about to hit us.

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