Thatsmaths

Buffon’s Noodle and calculating the length of a hillwalk

That’s Maths: Times and distances are of vital importance in the mountains

Émilie Du Châtelet and the conservation of energy

Her brilliant work is still the standard reference in French on Newtonian mechanics

Topsy-turvy maths: Proving axioms from theorems

The starting point for reverse maths is a base theory that is strong enough to state the theorems of interest, but not strong enough to prove them

Outrageous behaviour among mathematicians

In the ‘calculus wars’ Britain claimed it was invented by Newton, while the Germans insisted it was Leibniz

The Rosetta Stone many believe holds key to essential nature of maths

That’s Maths: Langlands program one of most ambitious efforts to unify different branches

Earth system models simulate the changing climate

We must find ways to minimise or avoid further damage to the atmosphere and oceans

That’s Maths: The social side of mathematics

The IMS deals with high level stuff, but an opening exists for a group catering to the layperson

Changing views on the age of planet Earth

We currently believe the age to be about 4.5bn years

Phantom traffic jams are all too real

Decreasing average speed of traffic can increase overall flow volume

To infinity and beyond: trying to figure out number systems

That’s Maths: Construction of set of numbers inspired by conception of physical world

Kalman filters have applications from moon to motorway

That’s Maths: Rudolph Kalman’s method is almost ideal to calculate velocity changes

Seeing beyond the horizon

That’s Maths: Light travels more easily through air of lower density

The simple arithmetic triangle is full of surprises

Easy to construct, and always a chance of finding something never seen before

How does the much-maligned Euclid’s Elements relate to coronavirus?

Analysis suggests part of the coronavirus has the structure of a truncated octahedron

How to improve weather predictions by reducing precision

That’s Maths: Decimal points come with costs that may not fine-tune ensemble forecasts

Entropy and the relentless drift from order to chaos

It is all too evident in everyday life: a broken egg cannot be put together again

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