List by Author: Marianne Freiberger

What is infinity?

Take a trip into the never-ending.

Two-faced conic sections

Play with our applets to explore the conic sections and their different definitions.

Introducing the Klein bottle

A Klein bottle can't hold any liquid because it doesn't have an inside. How do you construct this strange thing and why would you want to?

The Sun, the Moon and trigonometry

A little trig helps to find the relative distance to the Sun and Moon.

Ebola: Evidence from numbers

Why maths is an important tool in the fight against Ebola.

The limits of information

Why there is a limit to how much better computer chips can get and what it's got to do with black holes.

Stubborn equations and the study of symmetry

An impossible equation, two tragic heroes and the mathematical study of symmetry.

The multiverse: Science or speculation?

If you like to have your mind blown cosmology is a great field to go into. But is it science?

In a lower dimension

Could the world be simpler than our senses suggest?

Who made the laws of nature?

What gives an equation the right to call itself a law?

Dreaming the dream

Why cosmologists worry about isolated brains that randomly fluctuate into existence.

Maths in a minute: Why do mathematicians play games?

Why game theory is a serious business.