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Aging Brains Blend Memories Together Instead of Just Forgetting Them

Hacker News Top · 2026-09-02 Cached

A study published in Cerebral Cortex finds that aging brains blend memories together rather than simply forgetting them, as older adults show broader, less precise recall patterns linked to hippocampal activity during memory tasks.

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Raindrops are tiny lightning bolts, and they’re corroding cars, study finds

Ars Technica · 2026-08-31 Cached

A new study finds that charged raindrops can electrically damage protective coatings like Teflon, leading to corrosion through a spark mechanism similar to lightning bolts.

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Why did 1,000 Swiss citizens bury their underpants?

Ars Technica · 2026-08-27 Cached

Scientists conducted a citizen science project where volunteers buried underpants and teabags to assess soil decomposition. The study found that land use was a key factor, with the underpants providing a visual measure of soil health comparable to traditional methods.

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Medici family mystery may be solved after more than 400 years

Hacker News Top · 2026-07-22 Cached

A new DNA analysis of skeletal remains from the Medici family solves a 400-year-old mystery, confirming that Grand Duke Francesco I de' Medici and his wife died of malaria, not arsenic poisoning as long rumored.

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Social media bans for teenagers lack evidence and pose risks, scientists say

Hacker News Top · 2026-05-29 Cached

Scientists argue that social media bans for teenagers lack scientific evidence and may pose risks, based on a review of experimental studies showing weak or harmful effects in adults, with no studies on under-16s.

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Whatever the mirror test tells us, beluga whales pass it

Ars Technica · 2026-05-24 Cached

A new study reanalyzing old footage shows that beluga whales exhibit behavioral hallmarks of mirror self-recognition, a test of self-awareness, adding them to a short list of species that pass the test.

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