mercury barometer


a: Mercury barometer ~
b: the water-in-a-trough experiment

What: "A mercury barometer is like the water-in-a-trough experiment - a tube of mercury standing in a reservoir, which is enclosed to avoid escape of poisonous mercury vapour. A small hole allows the changing atmospheric pressure to contact the mercury surface "

Writer: Chris Fawkes, BBC Weather forecaster
Date: Feb 6 2014 3:48 PM

Green Venn Diagram

METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.