What's new

Blenders mix milk and chocolate topping. Cereal makers add sultanas and puffs to bran flakes. We all mix things every day, but we know surprisingly little about the mathematics of mixing. One of this year’s Fields Medallists is working to bridge this gap. Many people can shuffle cards, but Artur Avila can shuffle a line.

You will need Two decks of cards. Younger mathematicians with small hands might have difficulty with a full sized deck of cards. Using smaller cards might be easier. If you’re still having difficulty, try asking an adult for help with shuffling. Overhand shuffle (for right-handed people) If you are left-handed, click here to see the…