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With the publication of Uncertainty and the Management of Epidemics, we celebrate our 50th column! Since 2013, our Nature Methods Points of Significance has been offering crisp explanations and practical suggestions about best practices in statistical analysis and reporting. To all our readers and coauthors: thank you and see you in the next column!

It's Snowing in my CPU — a Snowflake catalogue

She was all stars and arrows, squares and triangles of ice and light, like a church window; she was like a flower with many shining petals; she was like lace and she was like a diamond. But best of all, she was herself and unlike any of her kind.
— Paul Gallico, Snowflake

Go ahead, meet some snowflakes.

vulten
sodry
machon
muszo
slendtila
dinday
shancel

Somewhere in the world, it's snowing. But you don't need to go far—it's always snowing on this page. Explore random flurries, snowflake families and individual flakes. There are many unusual snowflakes and snowflake family 12 and family 46 are very interesting.

But don't settle for only pixel snowflakes—make an STL file and 3D print your own flakes!

Ad blockers may interfere with some flake images—the names of flakes can trigger ad filters.

And if after reading about my flakes you want more, get your frozen fix with Kenneth Libbrecht's excellent work and Paul Gallico's Snowflake.

Show a random flake or a random flake from this family.

snowflake mlrisalla

name mlrisalla
gender girl
family 14
hex 36, 16
t-SNE 149.2, 54.5

ρ vapor mass 0.6456787226 1.24   97%
κ freezing 0.0094276682 –0.41   39%
μ melting 0.0671377236 0.04   54%
γ melting 0.0000528017 –1.69   2%
α attachment 0.2036954856 0.19   53%
β attachment 1.1078619389 –0.74   22%
θ attachment 0.0584357817 0.39   72%
n growth steps 2720 –0.90   2%

The flake's ranking relative to other flakes with respect to each parameter is shown as a z-score (`(x-\mu)/\sigma`) and percentile.

snowflake files and resources

Download the snowflake's runfile.

Generate STL file for 3D printing.

high-resolution snowflake images

These are the original simulation images. Each snowflake was grown on a 800 × 800 hexagonal grid.

cartesian grid


hex grid


cartesian grid with vapor


hex grid with vapor


Martin Krzywinski | contact | Canada's Michael Smith Genome Sciences CentreBC Cancer Research CenterBC CancerPHSA
Google whack “vicissitudinal corporealization”
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