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First 'perovskite camera' can see inside the human body

news.ycombinator.com Unknown 2025-09-27 19:49:08

Physicians rely on nuclear medicine scans, like SPECT scans, to watch the heart pump, track blood flow and detect diseases hidden deep inside the body. But today’s scanners depend on expensive detectors that are difficult to make. Now, scientists led by Northwestern University and Soochow University in China have built the first perovskite-based detector that can capture individual gamma rays for SPECT imaging with record-breaking precision. The new tool could make common types of nuclear medic

Topics: crystals detectors imaging kanatzidis perovskite

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Huge Parts of the North Sea Seabed Are Upside Down, New Study Reveals

gizmodo.com Margherita Bassi 2025-11-03 16:25:03

In the world of stratigraphy, or rock layers, superficial sediments are usually younger than the deeper ones they settle upon. The North Sea, however, has revealed giant mounds of sand that defy this geological principle on a scale scientists have never seen before. Researchers from Norway and the UK have identified hundreds of sand bodies under the North Sea that seem to have sunk deeper into the ocean’s crust, swapping places with older layers, which floated to the top of the sand structures.

Topics: carbon layers sand sediments sinkites

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Finally, a rugged Android phone that doesn't feel like a downgrade from my Pixel

zdnet.com Jack Wallen 2025-11-09 02:05:00

Oukitel WP210 ZDNET's key takeaways The Oukitel WP210 is available now on Amazon for $599 This rugged outdoor phone outperforms most devices in its category with powerful hardware with next-level durability. You might find it too heavy for everyday use, but it's ideal for outdoor conditions. $499.99 at Amazon Get more in-depth ZDNET tech coverage: Add us as a preferred Google source on Chrome and Chromium browsers. What is an "outdoor" phone? Quite simply: one that can take a beating from mo

Topics: oukitel phone phones pixel wp210

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Indigenous knowledge meets artificial intelligence

technologyreview.com Petala Ironcloud 2025-11-20 10:00:00

Suzanne Kite’s AI art installations, for example, model a Lakota framework of data sovereignty: intelligence that emerges only through reciprocal, consensual interaction. Unlike systems that assume user consent via opaque terms of service, her kinetic machines require the viewer’s physical presence—and give something back in return. “It’s my data. It’s my training set. I know exactly what I did to train it. It’s not a large model but a small and intimate one,” Kite says. “I’m not particularly i

Topics: artist courtesy kite native systems

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Going off-grid? Leave your flagship at home and take this $300 Android instead. Here's why

zdnet.com Jack Wallen 2026-01-23 00:04:00

ZDNET's key takeaways The Oukitel WP56 is now available for $300 on the official site. It's a mid-range phone that performs above its price point, with impressive battery life and durability. Like most Oukitel phones, the WP56 is particularly heavy and bulky. View now at Oukitel Let me set the stage for you. You're out in the wilderness. Maybe you're working on a job site, or you've taken your Jeep for some off-road action. The terrain and the weather are rough, and you might not have the me

Topics: oukitel phone phones time wp56

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A new Martian climate model suggest a mostly cold, harsh environment

arstechnica.com Unknown 2026-01-24 15:13:05

The Curiosity rover was sent up the Mount Sharp, the biggest sediments stack on Mars. On the way, it collected samples that indicated a portion of carbon dioxide in the Martian atmosphere might have been sequestered in the sedimentary rocks, just as it happens with limestone on Earth. This would have drawn carbon dioxide out of the atmosphere, reducing the greenhouse effect that warmed the planet. Based on these findings, a team of scientists led by Benjamin Tutolo, a researcher at the Universi

Topics: kite mars martian model team

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I tested an Android phone with a built-in smartwatch - my thoughts after a month

zdnet.com Jack Wallen 2026-01-24 17:00:14

ZDNET's key takeaways The Oukitel WP300 is available now on Amazon for $425 with a $70 off coupon. This modular smartphone has built-in smartwatch and earbud components, as well as a very bright LED light. Like all Oukitel phones I've tested, the WP300 is thick, bulky, and very heavy. View now at Amazon There are certain brands that have carved a niche for themselves, and Oukitel is one of them. The company creates phones and tablets that are rugged enough to withstand the rougher side of wor

Topics: light oukitel phone phones wp300

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An ambitious vision of a city built from lava

news.ycombinator.com Francesca Perry 2026-01-27 17:33:03

Venice, Italy CNN — Erupting from fiery volcanoes, lava has historically been an uncontrollable force that destroys buildings and neighborhoods in its wake. But what if that force could instead be redirected and harnessed to create whole cities? An ambitious project from Icelandic firm s.ap arkitektar, presented at this year’s Venice Architecture Biennale (running until November 23), proposes just that. Whereas lava naturally cools on the landscape to become volcanic rock such as basalt, “Lava

Topics: ap arkitektar lava material used

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I replaced my Pixel 9 Pro with a $400 rugged Android phone - and now it's $100 off

zdnet.com Jack Wallen 2026-01-30 20:08:00

ZDNET's key takeaways The Oukitel WP56 is now available for $299 on the official site. The WP56 is a mid-range phone that performs above its price and has an impressive battery life. Like most Oukitel phones, the WP56 is very heavy. View now at Oukitel Let me set the stage for you. You're out in the wilderness. Maybe you're working on a job site, or you've taken your Jeep for some off-road action. The terrain and the weather are rough, and you might not have the means to give your phone a ch

Topics: battery oukitel phone phones wp56

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I replaced my Pixel 9 Pro with a $300 rugged Android phone - here's my buying advice

zdnet.com Jack Wallen 2026-02-15 12:00:25

ZDNET's key takeaways The Oukitel WP56 is now available for $300 on the official site The WP56 is a mid-range phone that performs above its price and has an impressive battery life Like most Oukitel phones, the WP56 is very heavy. View now at Oukitel Let me set the stage for you. You're out in the wilderness. Maybe you're working on a job site, or you've taken your Jeep for some off-road action. The terrain and the weather are rough, and you might not have the means to give your phone a char

Topics: battery oukitel phone phones wp56

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Maya Blue: Unlocking the Mysteries of an Ancient Pigment

news.ycombinator.com Unknown 2026-03-16 07:48:25

Maya Blue: Unlocking the Mysteries of an Ancient Pigment We are sincerely grateful to Dr. Dean E. Arnold for writing specially for us this intriguing introduction to the mysterious and unique pigment known as Maya Blue. Dr. Arnold has published extensively about the Maya potters and their craft in Ticul, Yucatan from data collected during his twelve visits over a period of 43 years (1965-2008). He is currently Adjunct Curator of Anthropology at the Field Museum and Professor of Anthropology Eme

Topics: blue maya palygorskite pic pigment

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Piloting the Kite-Powered Sailboat Aiming to Be World's Fastest

cnet.com See Full Bio 2026-03-18 03:00:18

Table of Contents Piloting the Kite-Powered Sailboat Aiming to Be World's Fastest Cutting through the water on a triple-hull sailboat pulled by a giant kite, members of the SP80 team are challenging the world sailing speed record off the coast of Southern France, one gust of wind at a time. SP80's three-hull (trimaran) design prioritizes stability and reduced drag. SP80 "There is nothing to earn at the end, except that you are proud to achieve it," says co-founder Benoit Gaudiot, who is also

Topics: boat kite sp80 speed world

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Latest Tech News

First 'perovskite camera' can see inside the human body

Huge Parts of the North Sea Seabed Are Upside Down, New Study Reveals

Finally, a rugged Android phone that doesn't feel like a downgrade from my Pixel

Indigenous knowledge meets artificial intelligence

Going off-grid? Leave your flagship at home and take this $300 Android instead. Here's why

A new Martian climate model suggest a mostly cold, harsh environment

I tested an Android phone with a built-in smartwatch - my thoughts after a month

An ambitious vision of a city built from lava

I replaced my Pixel 9 Pro with a $400 rugged Android phone - and now it's $100 off

I replaced my Pixel 9 Pro with a $300 rugged Android phone - here's my buying advice

Maya Blue: Unlocking the Mysteries of an Ancient Pigment

Piloting the Kite-Powered Sailboat Aiming to Be World's Fastest

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