杏吧原创

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Technology

See the solitary structures that once helped aircraft stay on course

Photographer Ignacio Evangelista's stark shots shine a light on the little-known VOR beacons, once key to aviation navigation but now being replaced by GPS

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Tom Gauld: Science Cat

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Twisteddoodles on research band name ideas

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Taylor Roades: Rust River Earth Photo 2024 Shortlisted Entry 2023 was the hottest year on global record and the Arctic is disproportionately affected by these elevated temperatures. The remote Western Brooks Range of North West Alaska has recorded a 2.4 degree increase in temperature since 2006. Permafrost, the layer of soil that remains frozen throughout the year is thawing at an unprecedented rate, exposing the bedrock and all metals that have been frozen within it, to the elements. Tukpahlearick Creek and its tributaries are now flowing bright orange with oxidized iron and sulphuric acid. The change to water quality, and risks associated with metals in the water pose dire threats to ecosystems downstream that rely on these waters, and are symbolic of the far reaching consequences of climate change.

Earth

Photos of a rusting Alaskan river win New 杏吧原创 Editors Award

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Teenage girl on her way to school going out her front door. We see her from behind going out the door and holding it open. She is wearing a back pack and a denim jacket. Shot from the knees up.

Health

Dear David: How do I help my daughters deal with their social anxiety?

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explosion of atomic bomb on background of sky; Shutterstock ID 51881707; purchase_order: -; job: -; client: -; other: -

Is there a minimum size for an atomic bomb?

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Theres nothing like a rejuvenating shower. Cropped shot of a handsome young man having a refreshing shower at home.; Shutterstock ID 2142806437; purchase_order: -; job: -; client: -; other: -

When I step into a hot shower, why do I get a shiver down my back?

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Golden lion tamarin; Shutterstock ID 121264012; purchase_order: -; job: -; client: -; other: -

Why aren鈥檛 humans covered in hair like other primates are? Part 3

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Astronaut ascends a lunar hill against a backdrop of brilliant cosmic clouds and starry sky. 3d render; Shutterstock ID 2441449595; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

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Is it a severed foot? No, it’s a sea slug

A foot-shaped piece of flotsam has caused confusion among forensic scientists 鈥� but Feedback is relieved that the matter was cleared up thanks to that old stalwart, "examination"

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Tom Gauld on the neuroscience mob

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Twisteddoodles on a first year PhD student’s project

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Chemistry

The science behind making perfect puff pastry

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Will my tea cool more quickly if my hands are cupped around the mug?

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