r/STEW_ScTecEngWorld

A Nature Communications study found NASA's Curiosity rover detected over 20 organic molecules in 3.5 billion year old Martian rocks, including a DNA precursor never before seen on Mars. The find does not confirm past life but shows Mars can preserve complex carbon compounds for billions of years.
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A Nature Communications study found NASA's Curiosity rover detected over 20 organic molecules in 3.5 billion year old Martian rocks, including a DNA precursor never before seen on Mars. The find does not confirm past life but shows Mars can preserve complex carbon compounds for billions of years.

futura-sciences.com
u/logic_0057 — 1 day 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
▲ 21 r/STEW_ScTecEngWorld+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

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
▲ 1.1k r/STEW_ScTecEngWorld+2 crossposts

Liquid NanoClay: Turning Desert Sand into Farmland

Desert Control developed Liquid NanoClay (LNC), an innovative technology that transforms barren desert sand into fertile farmland within hours. By mixing natural clay and water into a liquid slurry, LNC coats sand grains with a thin clay layer, helping the soil retain moisture and nutrients like a sponge. This process greatly improves soil quality, reduces irrigation needs by 35%–77%, and can increase crop yields by 20%–60%. Successful trials have taken place in drought-prone regions such as the United Arab Emirates, Egypt, and the United States. Although the technology shows strong potential to fight desertification and improve food security, high initial costs remain a challenge for widespread adoption by small farmers: https://www.bbc.com/future/bespoke/follow-the-food/the-spray-that-turns-deserts-into-farmland.html

Liquid NanoClay (LNC): https://earth.org/liquid-nanoclay/

LNC Explained (Video): https://www.youtube.com/watch?v=UuVT44HtXDM

Seven-Hour Soil? Norway’s Nanoclay Fix Is Real — But It Isn’t Magic. A deep dive on Desert Control’s Liquid NanoClay — physics, yields, and the numbers that matter: https://medium.com/technology-hits/seven-hour-soil-norways-nanoclay-fix-is-real-but-it-isn-t-magic-ebe50b6cfce1

u/Deepeye225 — 2 days ago
▲ 2.3k r/STEW_ScTecEngWorld+3 crossposts

Gibbs high-speed amphibious motorcycles – ride straight into the lake and out again

Serial amphibian vehicle innovator Alan Gibbs unveiled three radical recreational vehicles at the American International Motorcycle Expo. Expanding beyond amphibious cars, trucks, and quad bikes, Gibbs introduced two- and three-wheeled motorcycles that transition directly from road to water. With the push of a button, the wheels retract, jet propulsion activates, and the transformation to water mode happens in under five seconds with almost no loss of momentum: https://newatlas.com/gibbs-sports-amphibians-concept-vehicles/39912/

u/Little_BlueBirdy — 3 days 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 — 3 days 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 — 2 days 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

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

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

A Magnificent 250-Year-Old Mechanical Silver Swan Still Moves Like Alive

This Robotic Silver Swan Has Fascinated Fans for Nearly 250 Years

Crafted around 1773 by London entrepreneur James Cox and Belgian mechanician John Joseph Merlin, the Silver Swan is a legendary 18th-century clockwork automaton. The life-sized masterpiece features over 2,000 moving parts, including 139 rotating glass rods that simulate a flowing stream and a remarkably realistic neck made of 111 interlocking silver vertebrae. When wound, it plays music while the swan gracefully twists, preens, and catches a silver fish—a spectacle that famously captivated Mark Twain in 1867, who marveled at its "living intelligence." Today, following a painstaking restoration by horological experts, this mechanical marvel remains in working order and is permanently housed at The Bowes Museum in County Durham, England: https://www.smithsonianmag.com/smart-news/robotic-silver-swan-has-fascinated-fans-nearly-250-years-180962024/

Learn more here:

  1. https://thebowesmuseum.org.uk/the-silver-swan-story/

  2. https://journals.openedition.org/artefact/525

  3. https://www.instagram.com/reel/DO1VqwJETx0/?hl=en

  4. https://en.wikipedia.org/wiki/Silver_Swan_(automaton)

u/Zee2A — 3 days ago
▲ 2.6k r/STEW_ScTecEngWorld+2 crossposts

UNESCO Green Citizens Pathfinder Explores How Will History Judge Us?

What if this isn’t the era humanity collapsed, but the era it woke up? The moment young people stopped waiting for broken systems to save them and began creating new ones themselves. As old institutions weakened, a different mindset emerged—less focused on status and control, and more on meaning, creativity, connection, and responsibility. Perhaps this generation is not lost, but the first refusing to inherit systems that no longer make sense. And from that refusal, new ways of learning, working, and living began to take shape.

Natalie Anne Kyriacou OAM - an Australian environmentalist, social justice advocate & author, delivers a powerful and deeply provocative address. Opening with the question, “How do you think we will be written about in history books?”, Natalie reflects on the contradictions of modern society — from climate inaction and political disengagement to social media, inequality, corporate power, and environmental collapse. With sharp humour and urgency, she explores what future generations may think of a civilization that possessed unprecedented knowledge, technology, and wealth — yet struggled to collectively act on the crises threatening its own future: https://www.unesco.org/en/articles/unesco-green-citizens-pathfinder-natalie-kyriacou-explores-extinction-crisis-her-new-book

Natalie Kyriacou OAM is an award-winning environmentalist, writer, professional public speaker and company director with a passion for harnessing curiosity to solve nature crises. Natalie was awarded the Medal of the Order of Australia and the Forbes 30 Under 30 honour for her services to wildlife and environmental conservation in 2018 and was recognised as one of The Australian’s Top 100 Innovators in 2022. She was the United Nations Environment Programme’s Young Champion’s of the Earth finalist for her innovation in wildlife and environmental conservation and is LinkedIn’s Top Green Voice. She is a board director at the Foundation for National Parks & Wildlife, a board committee member at CARE Australia, the founder and chair of My Green World, a UNESCO Green Citizens Pathfinder, a member of the XPrize Brain Trust for Biodiversity and Conservation, and an Australian delegate and Climate Justice Lead at the W20 (the official engagement group of the G20): https://en.wikipedia.org/wiki/Natalie_Anne_Kyriacou

u/Proper_Function3541 — 4 days ago

AI’s Hidden Physical Limits

AI may feel like magic in the cloud, but it runs on one of the most fragile industrial systems ever built.Tiny semiconductor chips power everything: phones, hospitals, cars, banking, the internet, and AI itself. The global AI boom now depends on an incredibly complex supply chain. ASML’s chip-making machines are massive, ultra-sensitive systems costing up to $400 million each, while Taiwan’s TSMC produces over 60% of the world’s most advanced chips. AI is no longer limited only by software or ideas. It is now constrained by factories, energy, rare materials, manufacturing precision, cooling systems, and how fast humanity can physically build infrastructure in the real world.

Learn more here:

  1. https://www.linkedin.com/posts/alvinfsc_asml-builds-the-400-million-machines-powering-ugcPost-7457922667720110080-r9DY/
  2. https://www.youtube.com/watch?v=JQKeGF1pUC4
u/Zee2A — 4 days ago

The IM LS8: Redefining Ultra-Luxury and Range

The 2026 IM Motors LS8 is shattering the boundaries of full-size luxury SUVs by pairing a mammoth 5-meter footprint with mind-boggling performance. Starting at an incredibly competitive $36,600 USD, this flagship utilizes a "Stellar Super EREV" powertrain—combining a 1.5L turbo generator with a 65.9 kWh SAIC-CATL semi-solid-state battery—to deliver a massive 1,605 km combined CLTC range and ultra-fast 800V charging. Despite its grand scale, the LS8 maneuvers like a compact hatchback, boasting a tiny 4.85-meter turning radius thanks to advanced steer-by-wire and a 24-degree four-wheel steering system. Inside, the cabin rivals elite competitors like the Range Rover Sport, packing futuristic tech like a 27.1-inch 5K ultra-wide display, heated floors, and 4D mechanical spa seats that recline up to 132 degrees for ultimate passenger luxury: https://autonews.gasgoo.com/articles/ev/also-a-range-extender-why-does-the-im-ls8-claim-to-be-different-2046946252955058177

More here: https://carnewschina.com/2026/04/17/im-motors-launches-ls8-erev-suv-starting-from-36600-usd-430-km-ev-range-and-four-wheel-steer-by-wire/

u/Zee2A — 5 days ago

Japanese Startup Develops R1 Lunar Rover for Moon Exploration and Mining

GITAI developed the R1 lunar rover for Moon exploration, mining, and maintenance. It passed testing at Japan Aerospace Exploration Agency’s Mock Lunar Surface Environment, demonstrating driving, obstacle clearance, solar panel assembly, and dual-arm robotic operations: https://gitai.tech/2022/02/10/gitai-develops-lunar-robotic-rover-r1/

Video: https://www.facebook.com/interestingengineering/videos/japans-lunar-rover-built-for-moon-construction/1945040670232002/

u/Zee2A — 4 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

White hydrogen discovered in billion-year-old Canadian Shield rock points to potential new energy source

University of Toronto geochemists discovered sustained emissions of natural "white hydrogen" from boreholes in billion-year-old rock within the Canadian Shield. This naturally occurring hydrogen vents constantly, offering a promising, zero-emission fuel source that could directly support the global clean energy transition and local remote communities: https://www.eurekalert.org/news-releases/1128340

Study: https://www.pnas.org/doi/10.1073/pnas.2603895123

phys.org
u/Zee2A — 3 days ago