Alaska: the nutrient cycle

14 minutes

After migrating thousands of miles to mate, chum salmon feed Alaska’s ecosystem

During breeding season, Alaska’s chum salmon abandon their instinct for survival and transform into creatures singularly focused on mating. After their perilous migrations to spawning grounds, frequently thousands of miles away, the salmon die, becoming food for animals of the air, land and water, or decomposing into the ground. Shot over three weeks, Paul Klaver’s breathtaking film combines time-lapse and conventional photography to chronicle the chum salmon’s annual journey through the Yukon River. The result is a powerful vision of the cyclical processes of vast ecosystems, and the inherent balance of the natural world.

Director: Paul Klaver

Video/Gender & Sexuality

How a dairy farmer preached radical self-acceptance to his gay son in the 1950s

4 minutes

ORIGINAL
Video/Ethics

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

6 minutes

Video/History of Technology

Breakthroughs, quackery and strange beauty: the afterlife of outmoded medical devices

5 minutes

Idea/History of Science

Science funding is a gamble so let’s give out money by lottery

Shahar Avin

Essay/Physics

Minding matter

The closer you look, the more the materialist position in physics appears to rest on shaky metaphysical ground

Adam Frank

Video/Evolution

What the spitting archerfish might tell us about small-brain intelligence

4 minutes

Video/Mathematics

A brilliant ‘geometric ballet’ of sound, shape and symmetry on the theme of 180°

5 minutes

volume_up
play_arrow
pause
Idea/Cosmology

Our Universe is too vast for even the most imaginative sci-fi

Michael Strauss

Essay/Mathematics

How to play mathematics

The world is full of mundane, meek, unconscious things embodying fiendishly complex mathematics. What can we learn from them?

Margaret Wertheim