Browsing: shapes

Imagine that you want to know the most efficient way to make a torus—a doughnut-shaped mathematical object—from origami paper. But this torus, which is a surface,…

Cohort description and recruitmentA total of 134 volunteers comprising babies (4–15 months old at nursery start, median 10 months, 18 male, 25 female) about to attend the first…