In such a state, water droplets can remain liquid at temperatures below 0°C, up to a limit that nature has set around -40°C.
However, since it is an unstable state, the slightest external disturbance (imagine contact with a surface or a particle, for example) will be enough to trigger
However, since it is an unstable state, the slightest external disturbance (imagine contact with a surface or a particle, for example) will be enough to trigger
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As I mentioned, the snow crystal develops by inheriting water molecules that belonged to the neighboring droplets.
In reality, this transfer of water molecules is a natural process called the Bergeron effect.
Once in action, it induces the gradual evaporation of the droplets, and the water vapor thus formed joins the crystal, freezing onto it in turn (it should be noted that
As you can see, water vapor plays a central role, not only in the formation but also in the development of the snow crystal. Almost everything depends on it.
If the crystal finds good quantities of them in its vicinity, it eventually becomes too heavy