Marianne Freiberger

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

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?

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

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

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

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

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

Could the world be simpler than our senses suggest?

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

What makes a number a constant of nature?

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

Why game theory is a serious business.