Snowflakes are divided into three kinds of jokes.

Scientists have found that snowflakes actually have only 35 common shapes. These shapes include columnar ice crystals, irregular snow grains and flat crystals, which constitute the "traditional" hexagonal snowflake. They change with temperature and humidity.

Andy Blanning, a chemistry teacher in Bournemouth, England, made an infographic according to the latest research, revealing these different shapes. This chart shows 39 kinds of "solid precipitation" or snow, including 35 kinds of snowflakes and their names. These snowflakes are further divided into 12 1. Simple snowflake shapes such as ice crystal germs are more common in low humidity. However, more complex snowflake shapes such as flat crystals are formed in high humidity areas.

Blanning said: "We still don't know the exact variables that make snowflakes form these special shapes, but scientists are constantly studying theoretical formulas to predict the shape of snowflakes." The latest research was conducted by scientists from Kitajima University of Technology in Hokkaido, Japan, and the classification was divided into three levels: ordinary, intermediate and primary.

Blanning revealed 39 intermediate crystal families based on the latest research infographic. They are further divided into eight groups, namely columnar ice crystals, flat crystals, mixtures of columnar ice crystals and flat crystals, snow crystal polymers, frost crystals, ice crystal embryos, irregular particles and fernlike shapes. Columnar ice crystals and flat crystals are snowflake shapes that many people imagine.

Of course, some people will answer like this: