List by Author: Yutaka Nishiyama
Don't like trigonometry? Don't worry, here are three beautiful proofs of a wellknown result that make do without it.
Imagine a circle with radius 1 cm rolling completely along the circumference of a circle with radius 4 cm. How many rotations did the smaller circle make? Be prepared for a surprise!
The number 1 can be written as a sum of unit fractions, that is fractions with 1 in the numerator. But how long can we make such a sum?

Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.
A basic introduction to the most powerful tools in science and enginnering.
As COP28, the 2023 United Nations Climate Change Conference, kicks off we look at how maths can help understand the climate crisis.
How do you create dramatic film out of mathematics? We find out with writer and director Timothy Lanzone.
Mathematics plays a central role in understanding how infectious diseases spread. This collection of articles looks at some basic concepts in epidemiology to help you understand this fascinating and important field, and set you up for further study.
Find out why the formula we use to work out conditional probabilities is true!