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In 1944, while Tokyo was under Allied aerial attack, sirens warned citizens to remain indoors as the government blacked out the city. Hisako Koyama, a Tokyo resident then aged 28, used these perilous, dark moments as an opportunity to pursue her passion for astronomical observation. But as this evocatively animated video from TED-Ed explores, it was her meticulous and innovative daylight sketches of the Sun that would ultimately capture the attention of the astronomy world. Melding Koyama’s inspiring biography with the science of sunspots and solar flares, the short is at once a glimpse into the Sun’s somewhat hidden cycles and a celebration of the contributions of citizen scientists.
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Earth science and climate
A biologist on the sorrows of documenting the Great Salt Lake’s collapse
6 minutes
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Design and fashion
Household items are reborn in a ‘visual symphony of everyday objects’
11 minutes
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Music
As a pianist strikes a chord, visualisations of his notes appear in real time
5 minutes
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Quantum theory
Why aren’t our everyday lives as ‘spooky’ as the quantum world?
7 minutes
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Space exploration
Burning ice, metal clouds, gemstone rain – tour the strangest known exoplanets
31 minutes
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Logic and probability
Chew over the prisoner’s dilemma and see if you can find the rational path out
6 minutes
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Biology
The idea that life on Earth originated elsewhere is not as far out as it seems
6 minutes
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Biology
Flicker through the eclectic beauty and biological diversity of 2,400 leaves
3 minutes
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Metaphysics
Bertrand Russell wanted to kill off causation. Can contemporary philosophy rescue it?
8 minutes