Snow forms in the atmosphere as a result of water molecules attaching themselves to nuclei bacteria. But scientists have found ways to manipulate the freezing process of water and the production of these nuclei to create snow artificially.
- Snowflakes need ice-forming nuclei, such as dust, bacteria and pollen grains.
- Snowflakes can be created from supercooled water, which remains liquid below zero degrees Celsius.
- Supercooled water immediately crystallises when it comes into contact with foreign nuclei.
- Indoor ski slopes use supercooled water to create fake snow.
Ever thought that there's never enough snow to get the sleigh out?
Well there is a way to enjoy the slopes on a warm day without travelling to the top of a mountain.
Nowadays it's possible to recreate weather's most exciting phenomenon indoors.
And it's all thanks to chemistry!
Prof Tom Choularton, University of ...
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