Triangle of power

8 minutes

Maths notation is needlessly complex. It can and should be better

Making students learn to execute similar operations using three different kinds of notation – as in the case of exponents, logarithms and roots – is a bit like asking them to learn to say the same thing in three different languages for no good reason. With such counterintuitive and redundant standardised notation systems, it’s easy to understand why many students become overwhelmed by mathematics and choose to pursue fields where complex calculations aren’t necessary. This video by Grant Sanderson, who makes films under the moniker 3Blue1Brown, looks at how expressing exponents, logarithms and roots could be made simpler by using one elegant notation system, and makes a broader case for how maths could be made more accessible by developing cleaner – and perhaps even artful – notation.

Video by 3Blue1Brown


Melody, rhythm and piety: the rich forms and meanings of Indian classical music

17 minutes


If soldiers act with unjust aggression they are as culpable as civilian criminals

6 minutes

Video/Childhood & Adolescence

Why the ‘exotic and strange’ world of childhood is ripe for horror

5 minutes

Idea/History of Science

The missing fossils matter as much as the ones we have found

Adrian Currie & Derek Turner

Video/History of Science

Energy is like children’s toys: often hiding out of sight, but never actually lost

3 minutes

Essay/Deep Time

Welcome to Terra Sapiens

Humans have been altering Earth for millennia, but only now are we wise to what we’re doing. How will we use that wisdom?

David Grinspoon


Why we can stop worrying and love the particle accelerator

Joel Frohlich


The queen does not rule

The ant colony has often served as a metaphor for human order and hierarchy. But real ant society is radical to its core

Deborah M Gordon


How the mantis shrimp’s six-pupiled eyes put 20/20 vision to shame

4 minutes