Aperiodipal Nathan Barker sent me this video by Durham University’s Herbert Gangl, inspired by his number theory course last year.

[youtube url=https://www.youtube.com/watch?v=wTFCPnxe9Jc]

I’ll never be able to think about algebraic numbers again without hearing this. Thanks, Herbert! No thanks, Nathan!

Nathan also sends in this festive ditty:

On the twelfth day of Christmas, my true love gave to me…

12 ODEs

11 Chiral knots

10 Mersenne primes

9 Vector fields

8 Eigenvectors

7 Spirolaterals

6 Tensors tensing

5 Golden ratios

4 Peano curves

3 French Metro metrics

2 Riemann spheres

And a textbook on number theory.