Predict a thunderstorm before everyone else. The Fitzroys Storm Glass is an ancient weather forecasting device consisting of a hand-blown glass tube filled with a liquid that undergoes interesting and unusual crystal growth in response to changing weather conditions. Famed meteorologist Admiral Fitzroy used a storm glass in 1750 as captain of the HMS Beagle on a historic voyage with Charles Darwin. This attractive 28cm storm glass makes a stylish room ornament, and interesting conversation piece.
Age: 12+ (this is not a toy it is made from glass)
What you get
Fitzroys Storm Glass (28cm) in an attractive box
How does it work?
A storm glass works on the principle that temperature and pressure affect solubility, sometimes resulting in clear liquid; other times causing precipitants to form. The liquid within the glass is a mixture of several chemicals including, distilled water, ethanol, potassium nitrate, ammonium chloride, and camphor. The exact method by which the storm glass works is not fully understood. Explanations include changes in barometric pressure, changes in temperature, and the effects of electricity across the glass. Nevertheless, the crystals in a storm glass are constantly evolving, and they are said to indicate the following weather conditions:
Clear Liquid = Fair Weather
Murky Liquid = Rainy Weather
Crystals at the top = Thunderstorms
Large Flaky Crystals = Cloudy skies, snow in winter
Thread of Crystals = Windy weather
- Properties of liquids and precipitates
- Crystal formation
- Weather forecasting
- History of weather forecasting and seafaring
WARNING: CHOKING HAZARD Small Parts. Not for children under 3 years.
What are the shipping costs?
FREE Shipping is available on all orders over $120 to anywhere in Australia!
Orders under the value of $120 incur a low flat rate shipping cost of only $9.95 to anywhere in Australia.
Express, Registered and International delivery options are also available. The cost for these premium shipping services will be automatically calculated during the checkout process. Please conact us if you have any queries with these services.
In some cases we may need to apply a shipping surcharge to large or fragile items, especially to remote or non-urban locations. You will be contacted by us for confirmation if this additional charge is applicable.
How long will it take for my order to arrive?.
You should receive your order within 2 to 4 working days, although to some regional and out back areas it can take up to 2 working days longer. Orders going to WA also take a little longer, up to 6 working days.
All standard orders are shipped using Australia Post's eParcel service, so you'll be kept fully informed of the progress of your order during its journey to you. Aside from receiving regular email updates, you can enter your tracking number into Australia Post's website at any time for information about the delivery status of your order.
International delivery will take from between 1 to 4 weeks depending on the destination and potential customs clearance delays.
When will my order be shipped?
We ship every Victorian business day. Orders received and paid for by 12pm AEST time will generally be shipped the same day.
If you require your order urgently, we have a next day delivery express service available.
What locations do you ship to?
We ship to both Australian and International customers.
What shipping options are available?
The majority of orders are shipped using Australia Post's trackable eParcel service, with larger orders being sent by national courier.
We also have options for express or registered post. A number of international delivery options are also available. These can be selected during checkout.