u/Zee2A

New recyclable resin could enable sustainable 3D printing, researchers report

New recyclable resin could enable sustainable 3D printing, researchers report

Scientists create recyclable UV resin that can be melted and reused for 10 cycles of high-precision 3D printing.

Scientists at Yokohama National University have developed an initiator-free, anthracene-based UV resin that can be melted and reused for precision 3D printing. This innovative material leverages reversible photodimerization to transition between solid and fluid states, retaining its high-precision qualities across more than 10 print cycles without significant degradation.

Research: https://pubs.acs.org/doi/full/10.1021/acsomega.5c09643

eurekalert.org
u/Zee2A — 19 hours ago

UN backs historic climate crisis ruling, despite US attempts to stop resolution

The US, Russia, Iran and Saudi Arabia – some of the highest oil-producing nations and major greenhouse gas emitters – opposed the measure

theguardian.com
u/Zee2A — 21 hours ago
▲ 4 r/STEW_ScTecEngWorld+1 crossposts

Scalable Manufacturing of Perovskite Photovoltaics: High-throughput process produces uniform layers on textured silicon cells – Fast, solvent-free vacuum process for tandem solar cells with efficiencies of up to 24.3 percent

Solar energy is a cornerstone of the energy transition. Tandem solar cells made of perovskite and silicon can achieve higher efficiencies than conventional silicon cells, but their industrial manufacturing remains a challenge. Researchers at Karlsruhe Institute of Technology (KIT), Germany and the University of Valencia, Spain have now jointly further developed a fast, solvent-free vacuum process that uniformly deposits perovskite layers at high throughput, even on textured silicon surfaces.

Results published in Nature Energy: https://www.nature.com/articles/s41560-026-02068-9

kit.edu
u/Zee2A — 21 hours ago

OpenAI claims it solved an 80-year-old math problem — for real this time

80-Year-Old Geometry Mystery Cracked by OpenAI Through Deep Number Theory. A longstanding conjecture by Paul Erdős has finally been resolved after OpenAI researchers linked the problem to advanced algebraic number theory.

OpenAI’s general-purpose reasoning AI has overturned the 1946 unit-distance conjecture of Paul Erdős, a problem that asked how many pairs of points among nnn points in a plane can be exactly one unit apart. For nearly 80 years, mathematicians believed square-grid constructions were essentially optimal, limiting the number of unit-distance pairs to roughly n1+o(1). By applying deep algebraic number theory — including cyclotomic and number fields — OpenAI’s model discovered entirely new geometric configurations producing at least n1+δ unit-distance pairs for some fixed δ>0, disproving the long-standing assumption. The result marks a major milestone for AI-driven scientific discovery, showing that general-purpose reasoning models can independently connect distant mathematical fields and sustain complex, multi-step proofs: https://techcrunch.com/2026/05/20/openai-claims-it-solved-an-80-year-old-math-problem-for-real-this-time/

Open AI Vlog: https://openai.com/index/model-disproves-discrete-geometry-conjecture/

u/Zee2A — 1 day ago

Single-Step Steelmaking Technology for Cheaper and Sustainable Steel: A Streamlined Path to Reducing America’s Reliance on Imports

Hertha Metals, founded by Laureen Meroueh SM ’18, PhD ’20, uses an electric arc furnace, powered by natural gas and electricity, to melt and reduce low-grade iron ore in a single step.

Hertha Metals Inc. has developed the Flex-HERS platform, a single-stage, semi-continuous steelmaking process that replaces traditional coal-intensive methods such as sintering and coking. The technology reduces operating costs by 25% and lowers energy consumption by 30% compared with conventional steel mills, while operating today on natural gas with a direct transition path to clean hydrogen. Designed to process any grade of iron ore—including low-grade ore, fines, and waste oxides—the system eliminates metallurgical coal by using a continuous electric arc furnace powered by natural gas or hydrogen. This approach can reduce smelting emissions by approximately 50% with natural gas and eliminate CO2​ emissions entirely when powered by clean hydrogen. Built for integration into existing “brownfield” steel facilities, Flex-HERS leverages current casting and rolling infrastructure, enabling faster and lower-cost deployment. Hertha has already demonstrated the process through a 1-metric-ton-per-day pilot facility in Conroe, Texas, and is advancing toward commercialization with plans for a 10,000-ton-per-year production facility, high-purity iron production for rare-earth magnets, and a large-scale commercial steel plant targeted for operation by 2030: https://news.mit.edu/2026/new-way-make-steel-could-reduce-americas-reliance-imports-0213

Video: https://www.youtube.com/shorts/NAbFYWZc6kk

u/Zee2A — 1 day ago

Ford rotor built with 100% recycled rare earth magnets passes durability test

A UK consortium has completed an end-to-end circular rare earth supply chain for electric vehicle motor magnets

chargedevs.com
u/Zee2A — 1 day ago

From Silkworm to Super Material: Researchers fuse silk fibers into high-performance solids that are almost as tough as Kevlar

Researchers from Tufts University, Imperial College London, and University of Michigan have developed a sustainable method to transform natural silk into an ultra-tough solid without chemical solvents or synthetic additives. Using precise heat and pressure to fuse aligned silk fibers while preserving their crystal structure, the material achieves strength comparable to Kevlar, surpasses bone and wood in toughness, and absorbs more impact energy than many carbon-fiber composites. The biocompatible material can be tailored for durable implants or degradable tissue-engineering scaffolds, and it also shows promise for 6G telecommunications because it can manipulate terahertz light frequencies while remaining nearly transparent.

Silk made into strong plastic-like materials with 6G potential: https://news.umich.edu/silk-made-into-strong-plastic-like-materials-with-6g-potential/

Imperial-led team fuse natural silk into ultra‑strong, sustainable materials: https://www.imperial.ac.uk/news/articles/engineering/aeronautics/2026/imperial-led-team-fuse-natural-silk/

Research Findings: https://www.nature.com/articles/s41893-026-01821-y

now.tufts.edu
u/Zee2A — 2 days ago

Stem cells have potent potential for diabetes treatment

Stem cells offer an extraordinary toolkit for science and medicine. Researchers are getting better at turning these pluripotent cells into specialized tissues, including insulin-producing beta cells.

theconversation.com
u/Zee2A — 2 days ago
▲ 21 r/Soil+1 crossposts

Urban gardens may contain lead — here’s what the research says about the hidden health risk

While contamination in soil is real, the benefits of gardening outweigh it, and there are plenty of simple, affordable steps gardeners can take to protect themselves

theconversation.com
u/Zee2A — 1 day ago

Google Omni: AI’s Biggest Leap Yet

Google may have just changed the future of AI again with the introduction of Google Omni inside Gemini. Instead of separate tools for chat, video, images, and editing, Omni combines everything into one powerful system that can create almost anything from a single idea. You simply describe what you want, and the AI can search, think, generate, edit, animate, redesign, and build entire experiences across text, video, voice, code, and more. What starts as an AI creation tool could eventually evolve into a system capable of building apps, games, simulations, and even fully interactive digital worlds: https://www.cnet.com/tech/services-and-software/google-introduces-gemini-omni-a-multimodal-ai-that-knows-the-world/

Gemini Omni: https://blog.google/innovation-and-ai/models-and-research/google-labs/flow-updates/

Intruducing Gemini Omni:: https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-omni/

Gemini Omni is Google's new world model, with advanced AI video generation capabilities: https://mashable.com/article/gemini-omni-flash-ai-video-generation-google-io-2026

u/Zee2A — 2 days ago

Artificial eggshell comes first in attempt to revive giant flightless moa

De-extinction firm Colossal Biosciences hopes incubation system can be scaled up but other scientists are sceptical

A de-extinction company worth billions of dollars has claimed that it has moved one step closer to reviving New Zealand’s largest extinct bird, the giant moa, which disappeared centuries ago. According to an announcement by the Texas-based American company Colossal Biosciences, it has developed an artificial egg that the company describes as a major breakthrough for bringing the giant moa back to life. The enormous bird became extinct around 500 years ago. The company says it has successfully hatched 26 chicks using this new artificial egg system. The egg has been designed so that it can be produced at scale and in different sizes. The same biotechnology company had previously made headlines by claiming it had revived the ancient dire wolf. However, its de-extinction projects have remained controversial, with critics questioning whether bringing extinct species back is ethically justified and whether such animals can truly be considered “revived.” The project is being carried out in collaboration with the Ngāi Tahu Research Centre and Canterbury Museum: https://news.sky.com/story/de-extinction-firm-colossal-biosciences-has-hatched-first-chicks-from-artificial-eggs-why-it-has-rankled-scientists-13545822

Research Article: https://www.nature.com/articles/d41586-026-01535-3

theguardian.com
u/Zee2A — 2 days ago

Japan Tests Mach 5 Engine for Two-Hour Tokyo-LA Flights

Japan has achieved a significant milestone in hypersonic aviation with the first combustion test of a ramjet engine designed for a Mach 5 passenger aircraft. Conducted in April 2026 by a joint team from JAXA and Waseda University, the test demonstrated stable combustion and heat resistance at simulated altitudes of 25 kilometers, where temperatures reach around 1,000 degrees Celsius. The experimental ramjet engine was tested on a scaled model about one-fiftieth the length of the planned commercial aircraft. The envisioned passenger plane aims to cruise at speeds of approximately 5,400 kilometers per hour, enabling potential two-hour flights between Japan and the United States. Beyond aviation, the project also explores suborbital space tourism by integrating rocket engines to reach the Kármán line at 100 kilometers altitude. This development is part of the HIMICO project, which plans future flight demonstrations using sounding rockets to validate the technology in real atmospheric conditions. The research team targets commercial use of hypersonic air travel by the 2040s, recognizing the extensive engineering challenges ahead: https://www.aerotime.aero/articles/japan-mach-5-ramjet-hypersonic-aircraft-test

tech.yahoo.com
u/Zee2A — 3 days ago

DNA floating in seawater is now enough to let scientists monitor the health of America's dolphin populations

DNA is widespread in the oceans, both inside cells and freely floating in water. Scientists use environmental DNA (eDNA) from seawater to identify species, especially rare or deep-sea ones. Until now, eDNA could mainly measure species richness, offering little insight into key conservation factors like population size, species balance, or genetic diversity.

A new study in Frontiers in Marine Science may change that: https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2026.1756593/full

phys.org
u/Zee2A — 3 days ago

WHO official warns Ebola outbreak unlikely to be over in two months as cases and deaths rise in DRC

At least 130 people thought to have been killed, says Tedros Adhanom Ghebreyesus before emergency meeting

theguardian.com
u/Zee2A — 3 days ago