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Waste into Construction Materials: Geopolymers from Recycled Sources

news.ycombinator.com Cigala 2026-02-18 06:53:33

1. Introduction 3,4,5,6,7, The construction industry stands as a major contributor to global waste generation, with the accumulation of construction and demolition debris (C&D) posing a significant environmental challenge [ 1 ]. This ever-increasing waste volume necessitates a fundamental shift towards sustainable practices, driving research and development into innovative, eco-friendly construction materials [ 2 ]. Among these promising alternatives, geopolymers have emerged as a compelling su

Topics: geopolymers glass material materials waste

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Printegrated Circuits: Merging 3D Printing and Electronics

news.ycombinator.com Alfred Poor 2026-02-20 18:30:23

Just as the laser printer delivered the benefits of a printing press to personal computer users more than 40 years ago, 3D printers have made it possible for individuals to turn digital designs into physical objects. Some printers cost less than US $1,000, and they can be used to create one-off objects or low-volume production of items. 3D printed objects have one major limitation; it’s not easy to make them “smart.” Adding digital processors and other components remains a challenge, as does ad

Topics: 3d child filament make material

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Researchers develop a battery cathode material that does it all

arstechnica.com Unknown 2026-02-25 22:08:01

Battery electrode materials need to do a lot of things well. They need to be conductors to get charges to and from the ions that shuttle between the electrodes. They also need to have an open structure that allows the ions to move around before they reach a site where they can be stored. The storage of lots of ions also causes materials to expand, creating mechanical stresses that can cause the structure of the electrode material to gradually decay. Because it's hard to get all of these propert

Topics: electrode ions material materials researchers

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Nascent Materials emerges from stealth to make LFP batteries better and cheaper

techcrunch.com Tim De Chant 2026-02-28 22:00:00

Lithium-ion batteries have dropped in cost by 75% over the past decade, a marvel of research and development that isn’t the result of a singular breakthrough but of myriad incremental improvements. Few know that better than Chaitanya Sharma, founder of the stealthy Nascent Materials. Sharma spent a little over two years working at Tesla’s Gigafactory in Nevada and another two leading iM3NY, a lithium-ion manufacturer in New York. Since leaving iM3NY in November 2023, he’s been working on a new

Topics: lithium materials new said sharma

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'Fast tech' warning as demand for cheap gadgets heats up

feeds.bbci.co.uk Unknown 2026-03-01 22:02:05

'Fast tech' warning as demand for cheap gadgets heats up 59 minutes ago Share Save Chris Vallance Senior Technology Reporter Share Save Getty Images Demand for so-called "fast tech" - cheap electronic items often quickly binned or abandoned in drawers - is growing, a not-for-profit that works to reduce electronic waste has warned. Material Focus singled out heatwave-fuelled demand for battery powered mini-fans as an example of the problem, suggesting over seven million were purchased last yea

Topics: fast focus gadgets material tech

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Scientists use bacteria to turn plastic waste into paracetamol

news.ycombinator.com Nicola Davis 2026-03-04 17:34:04

Bacteria can be used to turn plastic waste into painkillers, researchers have found, opening up the possibility of a more sustainable process for producing the drugs. Chemists have discovered E coli can be used to create paracetamol, also known as acetaminophen, from a material produced in the laboratory from plastic bottles. “People don’t realise that paracetamol comes from oil currently,” said Prof Stephen Wallace, the lead author of the research from the University of Edinburgh. “What this

Topics: coli material paracetamol plastic researchers

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18 Tips to Help You Keep Your Balance in Death Stranding 2

cnet.com See Full Bio 2026-03-06 16:00:00

Death Stranding 2, the follow-up to Hideo Kojima's 2020 surreal post-apocalyptic survival game Death Stranding expands on the first game with some meaningful quality of life upgrades, as well as earlier access to some of its more useful tools. However, Death Stranding 2 is still a unique game with a lot of quirky elements gamers will have to wrap their heads around as they spend the next 50-plus hours walking across Australia, the setting for the sequel. After spending around 20 hours with the

Topics: death game ll materials sam

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18 Tips to Help you Keep Your Balance in Death Stranding 2

cnet.com See Full Bio 2026-03-06 22:00:05

Death Stranding 2, the follow-up to Hideo Kojima's 2020 surreal post-apocalyptic survival game Death Stranding expands on the first game with some meaningful quality of life upgrades, as well as earlier access to some of its more useful tools. However, Death Stranding 2 is still a very unique game with a lot of quirky elements gamers will have to wrap their heads around as they spend the next 50-plus hours walking across Australia, the setting for the sequel. After spending around 20 hours with

Topics: death game ll materials sam

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West End Games’ Classic ‘Star Wars’ RPG Is Still Setting the Blueprint for Its Universe

gizmodo.com James Whitbrook 2026-03-07 17:48:43

In the years since Lucasfilm overhauled Star Wars continuity—reclassifying years of Expanded Universe material as “Legends” before wiping a clean slate of continuity it has developed over the last decade-plus—much of what has been rebuilt has been done so off of the back of re-canonizing elements of that old material. In some ways re-imagined, in others just lifted wholesale, the journey of modern Star Wars is as much about adding new stories as it is weaving the old ones back into them. There

Topics: games just material star wars

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First 2D, non-silicon computer developed

news.ycombinator.com Unknown 2026-03-15 13:26:43

The team used metal-organic chemical vapor deposition (MOCVD) — a fabrication process that involves vaporizing ingredients, forcing a chemical reaction and depositing the products onto a substrate — to grow large sheets of molybdenum disulfide and tungsten diselenide and fabricate over 1,000 of each type of transistor. By carefully tuning the device fabrication and post-processing steps, they were able to adjust the threshold voltages of both n- and p-type transistors, enabling the construction

Topics: 2d engineering materials research state

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Liquid Glass – WWDC25 [video]

news.ycombinator.com Apple Inc. 2026-03-14 22:48:47

Liquid Glass is a significant new step and evolution of the look and feel of Apple software. It introduces a flexible, dynamic layer to apps and system experiences across Apple’s ecosystem of products. It builds on learnings from all the way from the Aqua user interface of Mac OS X, through to the realtime blurs of iOS 7, to the fluidity of iPhone X, the flexibility of the Dynamic Island, and the immersive interface of visionOS. Building off these learnings, rather than trying to simply recreat

Topics: content elements glass liquid material

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Experimental retina implants give mice infrared vision

arstechnica.com Unknown 2026-03-23 04:08:21

Human vision relies on photoreceptor cells in the retina that react to visible light and trigger neurons in the optic nerve to send signals to the brain. Degradation of these photoreceptors is the leading cause of vision impairments, including blindness. However, a team of scientists at China’s Fudan University has recently built prototype retinal implants that can replace the failing photoreceptors and potentially provide infrared vision as a bonus. Sadly, they’ve only been tested in animals,

Topics: fudan implants material retinal vision

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Latest Tech News

Waste into Construction Materials: Geopolymers from Recycled Sources

Printegrated Circuits: Merging 3D Printing and Electronics

Researchers develop a battery cathode material that does it all

Nascent Materials emerges from stealth to make LFP batteries better and cheaper

'Fast tech' warning as demand for cheap gadgets heats up

Scientists use bacteria to turn plastic waste into paracetamol

18 Tips to Help You Keep Your Balance in Death Stranding 2

18 Tips to Help you Keep Your Balance in Death Stranding 2

West End Games’ Classic ‘Star Wars’ RPG Is Still Setting the Blueprint for Its Universe

First 2D, non-silicon computer developed

Liquid Glass – WWDC25 [video]

Experimental retina implants give mice infrared vision

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