快猫短视频

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Child's Spinning Top Toy; Shutterstock ID 365058569; purchase_order: -; job: -; client: -; other:

This week鈥檚 new questions

If a very large disc on a frictionless, horizontal spindle were gradually rotated faster and faster, what would happen as the rim approached the speed of light? And what part, if any, do my ears or auditory system play when I generate a tune in my head?

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Comment

Minecraft fan may be most committed hobbyist out there

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Tom Gauld on returning a particular subject to its natural habitat

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Twisteddoodles: dissolve powder A in liquid B and see what happens…

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2K163D6 06/10/2019. WATFORD, UK. Womens Rugby at THE FULERIANS LADIES 1ST XV THE FULERIANS PLAY RUGBY AGAINST RAMS SIRENS LADIES Photo credit : ? RICH BOWEN PHOTOGRAPHY

Health

Why group exercise is better than working out alone

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2M5GPCD Preparations of plants with bubble wrap for the winter

Should bubble wrap face the inside or the outside of the object?

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BCM7JY Rainbow above rolling farmland on the edges of Dartmoor National Park Devon England Spring April 2009. Image shot 2009. Exact date unknown.

Why do rainbows refract light into several colours but clouds don鈥檛?

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To warm up quickly, should I put on my trousers or top first? part 2

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CHEETAH acinonyx jubatus, Adult running through Savannah ; Shutterstock ID 1652757304; purchase_order: -; job: -; client: -; other:

This week鈥檚 new questions

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Comment

This paper should win a prize for its refusal to make any big claims

Feedback delights in a 2018 paper that takes care to warn us it reveals 鈥渘othing like super interesting鈥�, and embarks on a quest to find more examples of disarming honesty

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See all the action from this year’s 快猫短视频 Live

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Tom Gauld on science by numbers

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Twisteddoodles on research tales of terror

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Space

See the beauty of space, captured by the astronauts who experienced it

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