How far will the science of snowflakes take us?

Audio 48:30

Snowflake.

© Istock

By: Caroline Lachowsky

50 mins

How does the snow fall?

Why do flakes, marvels of symmetry of geometry and crystallography always have 6 branches?

How far will the science of snowflakes take us?

(Replay)

Publicity

Let's take a look at snowflakes, these splendid mini crystals, little marvels of symmetry and geometry that have fascinated the greatest mathematicians, astronomers, philosophers, physicists, but also artists, poets and the great frosty children that we are. Why do snowflakes always have 6 branches, wondered astronomer Johannes Kepler? Would nature be written in mathematical language as Galileo sensed? How to explain and reproduce such beauty? What do snowflakes tell us about the sky's atmosphere and weather? How did the science of snowflakes develop? 

With

Étienne Ghys,

CNRS research director in the Pure and Applied Mathematics Unit, for his book

Petite Histoire des flocons de neige

published by Odile Jacob.

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