The amazing life of sand

3 minutes

Sand can be lava, coral, bones, even excrement. What’s on your favorite beach?

Depending on where you are in the world, the sand beneath your feet can be anything from a fragment of a seashell to brine shrimp excrement to a piece of coral – the classification ‘sand’ only means a particle that is smaller than gravel and larger than silt. The Amazing Life of Sand explores the diverse nature of the substance, and the incredible journeys sand particles frequently travel.

Producer: Josh Cassidy, Liz Roth-Johnson

Website: Deep Look

Video/Mathematics

Getting down with squares – the dance styles of geometry

6 minutes

ORIGINAL
Video/History of Ideas

Can the problem of induction save Anthony’s dismal dating life?

6 minutes

Video/History of Ideas

How quantum superposition could unravel the ‘grandfather paradox’

3 minutes

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Idea/Space Exploration

Space exploration is still the brightest hope-bringer we have

Earle Kyle

Video/Evolution

Watch as the whale becomes itself: slowly, slowly, from land to sea, through deep time

10 minutes

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Essay/History of Science

The cosmology of Poe

Drawing on intuition, Edgar Allan Poe offered some remarkably prescient ideas about the universe in his poem 'Eureka'

Paul Halpern

Video/Ecology & Environmental Sciences

How a tiny group of insects escaped extinction by hiding in a bush for 80 years

20 minutes

Idea/Astronomy

Dwarf planetary systems will transform the hunt for alien life

Amaury Triaud & Michaël Gillon

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Essay/Cosmology

Echoes of a black hole

Ripples in space-time could herald the demise of general relativity and its replacement by a quantum theory of gravity

Sabine Hossenfelder