17世紀にヨーロッパで開発されたとか。中身は蒸留水・アルコール・樟脳（しょうのう）・塩化アンモニウムなどで航海に使われたようです。最初はうまく使えなかったけど、今は上手に予報ができるようになりました。ボトルの中身が透き通って奇麗なときは晴れ、どろどろしている時は曇り、結晶が出来るときは寒くて雪になりますね。大航海時代の気分で嵐を予想するなんてワクワクしませんか。
price: 10.5 U.S
lead time : two weeks
The weather forecast bottle is originated in the 19th century European weather predictor storm glass, in sealed glass vials into distilled water, alcohol, potassium nitrate, ammonium chloride and camphor mixture, observed in the crystallization of the liquid in the bottle is to predict the weather. It was once widely used for marine weather forecast. This is the principle and its cause, I had done, but the results are poor. Recently saw it, better than I do. Inside the crystal clear appearance is also very creative. How to pass it to the weather, when the bottle is clean and clear, on behalf of the weather will be fine and cloudless, when the bottle muddy, on behalf of the weather will be cloudy, when the bottle there crystallization time, on behalf of the cooling snow even.