When will the weather forecast ornaments be available?

Europe19th century. According to official website, the inquirer, the wind-blown bottle, also known as Tianzhu, is a transparent glass bottle used to predict the weather. Wind-blown bottles are familiar and used by Europeans in the19th century. The bottle is filled with a mixture of distilled water, ethanol, potassium nitrate, ammonium chloride and camphor in a certain proportion, which can predict many different weather in different forms.