Author Topic: Fitz-Roy barometer (Storm Glass)  (Read 6303 times)

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Offline weather1967

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    • Μeteo station Peristeri Athens - Greece
Fitz-Roy barometer (Storm Glass)
« on: October 28, 2007, 03:03:59 AM »
Hello again

I read for a Fitz-Roy barometer
And i like to ask you if someone it have it ,i like to ask you if it works well for weather forecast or no ? .

This text is from wikipedia

A storm glass is a type of weather-forecasting device, composed of a sealed glass container, filled with liquid, that allows the user to forecast the weather by observing the appearance of the liquid in the glass.

The liquid within the glass is a mixture of several ingredients, most commonly distilled water, ethanol, potassium nitrate, ammonium chloride, and camphor. This specific mixture was developed by Admiral Robert FitzRoy and used on his voyage with Charles Darwin on the HMS Beagle.
During the historic voyage, FitzRoy carefully documented how the storm glass would predict the weather:
If the liquid in the glass is clear, the weather will be bright and clear.
If the liquid is cloudy, the weather will be cloudy as well, perhaps with precipitation.
If there are small dots in the liquid, humid or foggy weather can be expected.
A cloudy glass with small stars indicates thunderstorms.
If the liquid contains small stars on sunny winter days, then snow is coming.
If there are large flakes throughout the liquid, it will be overcast in temperate seasons or snowy in the winter.
If there are crystals at the bottom, this indicates frost.
If there are threads near the top, it will be windy.

Here is some links about it

http://en.wikipedia.org/wiki/Storm_glass

http://www.pmicro.kz/~ufl/ALMANACH/N1_96/StormGlass.htm

http://chemistry.about.com/od/weirdscience/a/fitzroy.htm

http://www.nauticalia.com/uk-info/instruments/freestanding_clocks_and_barometers/fitzroy_barometer/94242.html

http://www.charlesedwin.com/fitzroy.htm

http://www.antique-barometers.com/DynamicPages/StickFitzroy.php

http://www.cmsgardens.co.uk/thermometer.htm

http://www.owltechs.com.au/

http://www.fahrneyspens.com/Item--i-235016

http://www.weatherinabottle.com/index.php
« Last Edit: August 25, 2008, 07:32:23 AM by weather1967 »
Best regards from Greece
Dimitris
http://users.otenet.gr/~meteo/index.html