杏吧原创

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Character_II_Bayanzag_1931_II kopi

Humans

Haunting photos bring fictional female explorers to life

Tonje B酶e Birkeland's photographs imagine the exploits of fictional female scientists and adventurers from the past

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People hands taking slices of chocolate pie, above view on a green background. Unequal sharing the cake, concept for financial pie chart

Mathematics

How mathematics can help you divide anything up fairly

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Blue-naped parrot, Tanygnathus lucionensis, colorful parrot, native to Philippines. Green parrot with red beak and light blue rear crown sitting on twig isolated against dark green jungle background.; Shutterstock ID 1911703984; purchase_order: -; job: -; client: -; other: -

Why didn鈥檛 green fur evolve among mammals?

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Man looks to a huge brain. Mental capacity, cognitive processing, and human interaction. This is a 3d render illustration; Shutterstock ID 2341475275; purchase_order: -; job: -; client: -; other: -

Would your brain run out of storage space if you could live forever?

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FY9W05 International Space Station and astronaut in outer space over the planet Earth. Elements of this image furnished by NASA.

This week鈥檚 new questions

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Hot news: abandoned bird’s nest ‘still there’, reports professor

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Tom Gauld on not disturbing the professor while he’s thinking

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Twisteddoodles takes on virtual AI assistants

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A red giant star and white dwarf orbit each other in this animation of a nova similar to T Coronae Borealis. The red giant is a large sphere in shades of red, orange, and white, with the side facing the white dwarf the lightest shades. The white dwarf is hidden in a bright glow of white and yellows, which represent an accretion disk around the star. A stream of material, shown as a diffuse cloud of red, flows from the red giant to the white dwarf. When the red giant moves behind the white dwarf, a nova explosion on the white dwarf ignites, creating a ball of ejected nova material shown in pale orange. After the fog of material clears, a small white spot remains, indicating that the white dwarf has survived the explosion. NASA/Goddard Space Flight Center

Space

Get ready to watch a rare explosive star system blaze into life

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Close up of an augmented reality (AR) sand table, an advanced technology to create a learning tool for students.; Shutterstock ID 1857112591; purchase_order: -; job: -; client: -; other: -

As average sea levels rise, will map heights need to be recalculated?

Height above mean sea level is only one way of calculating height, say our readers, and in any event, the effects of any change wouldn鈥檛 be visible on a paper map given the scales

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Are humans the only animal to experience vertigo?

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Why does a duvet bag up all the other items in the washing machine?

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This week鈥檚 new questions

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Hardening 鈥� the new way to stop your kids getting a cold?

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