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A term introduced by the Baltic German biologist Jakob von Uexküll in 1909, Umwelt refers to an organism’s internal and limited perceptual experience of the external world. This stunning experimental exploration of the concept from the Japanese artist Yoshiyuki Katayama contrasts flowers blooming at time-lapse speeds with insects and spiders atop them, captured in real time. As these two organisms move at what appear to be similar speeds, the viewer is reminded of the disparate timescales on which they usually operate, and the very different evolutionary goals that they pursue even as they interact with one another.
Director: Yoshiyuki Katayama
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Cosmology
Tiny, entangled universes that form or fizzle out – a theory of the quantum multiverse
11 minutes
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Rituals and celebrations
A beginner’s guide to a joyful Persian tradition of spring renewal and rebirth
3 minutes
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Astronomy
The history of astronomy is a history of conjuring intelligent life where it isn’t
34 minutes
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Love and friendship
Love looks a bit different for a chain-smoking couple in a small apartment
11 minutes
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Metaphysics
Simple entities in universal harmony – Leibniz’s evocative perspective on reality
4 minutes
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Biography and memoir
Passed over as the first Black astronaut, Ed Dwight carved out an impressive second act
13 minutes
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Engineering
A close-up look at electronic paper reveals its exquisite patterns – and limitations
9 minutes
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Work
A Swedish expat in the Philippines wonders: what’s up with people sleeping at work?
14 minutes
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Biography and memoir
The unique life philosophy of Abdi, born in Somalia, living in the Netherlands
29 minutes