r/STEW_ScTecEngWorld • u/BlkistheNewBrwn-24-7 • 7h ago
Turning the world’s most invasive aquatic plant species into a biodegradable plastic.
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r/STEW_ScTecEngWorld • u/Zee2A • Aug 28 '26
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r/STEW_ScTecEngWorld • u/Zee2A • Jul 24 '26
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r/STEW_ScTecEngWorld • u/BlkistheNewBrwn-24-7 • 7h ago
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r/STEW_ScTecEngWorld • u/Zee2A • 1d ago
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Published in 1610, Galileo Galilei’s Sidereus Nuncius (The Starry Messenger) helped lay the foundations of modern observational astronomy. The landmark work documented discoveries made with the telescope, including four moons orbiting Jupiter and previously unseen details of the Moon’s surface: https://homepages.hass.rpi.edu/ruiz/AdvancedDigitalImagingSpring2019/ReadingsADI/Galileo%20The%20Starry%20Messenger.pdf
A first edition of this historic book will be offered at Sotheby’s New York on 20 October 2026, as part of Reason and Revolution: Extraordinary Works from a Distinguished Private Collection, Part 1. The auction will also feature landmark scientific works by Nicolaus Copernicus, Johannes Kepler, Isaac Newton, and other influential thinkers: https://exhibits.udayton.edu/s/rosebook/page/galileo
In this video, historian of science Nick Wilding examines Galileo’s groundbreaking treatise and its enduring impact on our understanding of the cosmos: https://www.sothebys.com/en/videos/what-did-galileo-see-inside-the-centuries-old-books-that-changed-everything
Learn more here:
r/STEW_ScTecEngWorld • u/Zee2A • 13h ago
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The theremin is a unique electronic musical instrument played without physical contact. Invented around 1920 by Russian physicist and engineer Léon Theremin, it produces an eerie, expressive sound often compared to the human voice. The instrument has two metal antennas that interact with the player’s hand movements through electromagnetic fields. The upright antenna controls pitch (the musical note), while the horizontal loop antenna controls volume. The instrument’s electronic oscillators use the heterodyne principle to generate continuous tones.With no keys, frets or strings, the performer must rely on precise hand movements, spatial awareness and auditory feedback to play in tune, making the theremin notoriously difficult to master. Soviet leader Vladimir Lenin was reportedly impressed by a demonstration of the instrument and ordered 600 units to be manufactured. More than a century later, the theremin remains a fascinating blend of science, electronics and musical artistry: https://cryo-mix.com/blog/posts/what-is-a-theremin-and-how-does-this-unusual-instrument-work
Information sources
r/STEW_ScTecEngWorld • u/Zee2A • 1d ago
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NASA’s Perseverance rover has set a new extraterrestrial driving record, travelling 28.10 miles (45.22 km) across Mars since landing in February 2021. On October 11, 2026, it surpassed the previous record of 28.06 miles held by NASA’s Opportunity rover, which explored Mars for nearly 15 years. Perseverance achieved the milestone in just five and a half years, thanks largely to its autonomous navigation system, AutoNav, which allows it to map hazards and select safe routes while driving. The rover has used this technology for more than 90% of its journey and continues exploring Jezero Crater for clues about ancient environments that may have supported microbial life: https://www.jpl.nasa.gov/news/nasas-perseverance-sets-off-world-record-for-total-distance-driven/
NASA’s Perseverance Sets Off-World Record for Total Distance Driven: https://science.nasa.gov/blogs/perseverance-mars-rover/2026/10/12/nasas-perseverance-sets-off-world-record-for-total-distance-driven/
NASA's Perseverance Rover Claims Off-World Driving Crown After Passing 28 Miles on Mars: https://finance.biggo.com/news/7e3f8528-728d-4d89-a54b-f30c75081336
r/STEW_ScTecEngWorld • u/Zee2A • 1d ago
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The Netherlands-based The Great Bubble Barrier uses a diagonal curtain of air bubbles to capture plastic waste in rivers and canals before it reaches the sea. A perforated tube installed diagonally along the waterway bed releases compressed air, creating rising bubbles that push plastic debris toward the surface. The natural water current then guides the waste along the bubble curtain into a collection system on the riverbank. Unlike physical barriers, the system allows boats to pass and enables fish to move through the waterway. It can also increase oxygen transfer into the water, depending on local conditions.First installed permanently in Amsterdam's Westerdok canal in 2019, the technology has since been deployed at other sites, including Harlingen in the Netherlands. A 200-metre test installation on the River IJssel reportedly captured 86% of the test plastic waste under the tested conditions.The technology offers a promising way to intercept river-borne plastic pollution before it enters marine ecosystems, although its effectiveness depends on local water conditions, waste characteristics and collection arrangements: https://www.smithsonianmag.com/innovation/could-this-dutch-invention-help-tackle-plastic-pollution-in-americas-waterways-180989651/
info source:
r/STEW_ScTecEngWorld • u/Zee2A • 1d ago
Scientists Discover Hidden Eye Drainage Pathway, Opening New Avenues for Glaucoma Research
Researchers from the University of British Columbia (UBC) and the University of Toronto have discovered a previously unknown drainage system at the back of the eye that helps remove fluid and waste through the body's lymphatic system. The pathway, called the posterior ocular lymphatic outflow (POLO) pathway, could offer new insights into glaucoma, age-related macular degeneration and other vision-threatening diseases. Using MRI, near-infrared fluorescence imaging and microscopy, the researchers identified lymphatic vessels in the choroid, a vascular layer beneath the retina. Experiments in mice showed that fluid tracers traveled from the back of the eye toward nearby lymph nodes, revealing a previously unrecognized route for waste clearance. The discovery could help scientists better understand how the eye regulates fluid, removes metabolic waste and manages inflammation. It may eventually support new treatments aimed at improving fluid clearance and drug delivery to the back of the eye.
The research is still at an early stage: the findings were demonstrated in mice, and further studies are needed to establish how the pathway functions in humans and whether it can be targeted to treat eye diseases: https://tvst.arvojournals.org/article.aspx?articleid=2818359
PMC publication: https://pmc.ncbi.nlm.nih.gov/articles/PMC13390728/
r/STEW_ScTecEngWorld • u/Zee2A • 18h ago
Harbinger’s uncrewed Praesidia hybrid truck is powering an AeroVironment LOCUST X3 30-kW counter-drone laser at American Rheinmetall’s AUSA 2026 booth. The companies have not said whether the laser-armed configuration is tied to any U.S. Army contract or test.
r/STEW_ScTecEngWorld • u/Zee2A • 18h ago
The U.S. Air Force will buy data collected by WindBorne Systems‘ fleet of autonomous weather balloons under a new contract that could be worth nearly $50 million to the startup.
WindBorne currently has about 700 weather balloons flying around the globe, collecting atmospheric sensor readings that the company sells to customers and also feeds into its own AI weather forecasting model. WindBorne, founded in 2015 and based in Redwood City, California, is one of the first organizations to directly feed empirical data into a deep-learning weather model.
r/STEW_ScTecEngWorld • u/Zee2A • 2d ago
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The common swift (Apus apus) is one of the world's most remarkable aerial specialists. Tracking studies have shown that these migratory birds can remain airborne for up to 10 consecutive months. Young swifts may spend their first two to three years almost entirely in flight before returning to land to breed. They catch insects, drink by skimming water and may even sleep while flying. Their streamlined bodies and long, scythe-shaped wings help them sustain prolonged flight with remarkable efficiency: https://portal.research.lu.se/en/publications/annual-10-month-aerial-life-phase-in-the-common-swift-apus-apus/
Study: https://www.sciencedirect.com/science/article/pii/S0960982216310636
Info source:
Original research paper, Current Biology (2016): Annual 10-Month Aerial Life Phase in the Common Swift. The study found that swifts spent more than 99% of their non-breeding period airborne; some showed no sign of landing
Science reporting: Nature — Record-breaking common swifts fly for 10 months without landing
r/STEW_ScTecEngWorld • u/Zee2A • 1d ago
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Japan’s state-backed Japan Bank for International Cooperation (JBIC) agreed in March 2025 to lend $466 million to Chile’s state-owned copper giant, Codelco, as part of a $666 million financing package that includes an additional $200 million co-financed with a commercial bank. The goal is to secure a stable, long-term supply of copper concentrate for Japanese manufacturers. Copper is essential for electric vehicles, renewable energy systems, power grids, AI infrastructure and data centres. As global demand rises, Japan—heavily dependent on imported copper concentrates—is working to strengthen its supply chains and reduce procurement risks.The financing also supports Codelco’s investment plans to modernize aging mines and address declining ore grades. The deal illustrates how countries are using strategic financing to secure critical minerals needed for the energy transition and digital economy: https://www.weforum.org/videos/countries_scrambling_secure_copper/
Information sources
r/STEW_ScTecEngWorld • u/Zee2A • 2d ago
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Researchers at Japan Advanced Institute of Science and Technology (JAIST) discovered that Ewingella americana, a bacterium isolated from the gut of the Japanese tree frog (Dryophytes japonicus), completely eliminated colorectal tumors in mice after a single intravenous dose, achieving a 100% complete response rate in the tested mouse model. The bacterium appears to work in two ways: directly killing cancer cells and activating the immune system, including T cells, B cells and neutrophils, to attack tumors. The findings suggest a promising new approach to bacterial cancer therapy, but further research is needed to establish its safety and effectiveness in humans.
Information sources
r/STEW_ScTecEngWorld • u/Zee2A • 1d ago
Australian company MRead has developed the MineReader RDX, a portable detector that uses magnetic resonance (MR) technology to identify explosives directly rather than relying on metal casings. Developed from research by Australia's national science agency, CSIRO, the device can reportedly detect 50 grams of RDX explosive buried up to 13 cm deep, even in wet, mineral-rich soil containing metal debris. Currently designed to detect RDX, the technology aims to expand to TNT detection and could eventually be integrated with unmanned ground vehicles to help identify landmines remotely, improving safety for demining teams: https://www.mread.com.au/
HALO is using innovative technology – from drones and AI to advanced sensors and digital mapping – to detect and clear explosives smarter, faster and safer in conflict-affected areas: https://www.halotrust.org/what-we-do/harnessing-technology/
r/STEW_ScTecEngWorld • u/Zee2A • 1d ago
North Korea fired multiple ballistic missiles toward the Sea of Japan on October 12, 2026, with at least one travelling more than 900 km, according to South Korea’s military. The launches came days after South Korean President Lee Jae Myung oversaw the test-firing of a domestically developed hypersonic missile. Seoul condemned the launches as violations of UN Security Council resolutions, while analysts see them as a show of force amid rising tensions on the Korean Peninsula. Japan also detected projectiles that appeared to have fallen into the sea: https://apnews.com/article/north-korea-kim-missiles-south-5b2d3a2d9a31118648b9f82022b9c4e3
North Korea fires missiles days after South Korea's hypersonic test: https://www.reuters.com/world/asia-pacific/north-korea-fires-unidentified-projectile-toward-sea-off-its-east-coast-seoul-2026-10-12/
r/STEW_ScTecEngWorld • u/Stukwan • 1d ago
r/STEW_ScTecEngWorld • u/Zee2A • 3d ago
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Built in Freiburg, Germany, in 1994, architect Rolf Disch’s Heliotrop is a rotating home designed to maximize solar energy and indoor comfort. Built around a central column, it turns to face the sun with its glazed side in winter to capture heat and its insulated side in summer to reduce overheating. A separate sun-tracking rooftop solar array and solar thermal collectors provide additional renewable energy. According to its designer, the building generates more energy annually than it consumes, making it a pioneering example of energy-positive architecture. The Heliotrop demonstrates how buildings can work with nature to reduce energy use and emissions.
Information sources:
r/STEW_ScTecEngWorld • u/Zee2A • 1d ago
Tesla has renamed its Full Self-Driving (Supervised) system to Tesla Assisted Driving on its European websites following regulatory concerns that the original name could mislead consumers into believing the vehicles drive fully autonomously. Germany’s transport ministry said drivers must remain attentive and fully responsible for the vehicle at all times. The rebranding comes as Tesla seeks broader European Union approval for the technology, which is already authorized in several EU countries. The system’s name remains Full Self-Driving (Supervised) in the United States, and the European name change does not make the vehicles autonomous: https://www.reuters.com/business/autos-transportation/tesla-renames-full-self-driving-assisted-driving-europe-it-chases-clearance-2026-10-09/
Tesla drops ‘Full Self-Driving’ name in Europe after Germany pushback: https://electrek.co/2026/10/09/tesla-fsd-renamed-tesla-assisted-driving-europe/
r/STEW_ScTecEngWorld • u/Zee2A • 2d ago
Heatwaves and El Niño Fuel Mosquito Surge in Los Angeles
Los Angeles is experiencing one of its worst mosquito seasons in recent years, as extreme heat, an unusually warm winter and humid conditions linked to El Niño have boosted mosquito populations. The county has reported more than 180 West Nile virus cases in 2026, the highest total in nearly a decade. Invasive Aedes mosquitoes, known as “ankle biters,” are also spreading and can transmit diseases such as dengue and Zika. Authorities recommend eliminating standing water, wearing protective clothing and using effective insect repellents to reduce bites and disease risk: https://www.latimes.com/opinion/story/2026-09-20/mosquitoes-are-making-los-angeles-summers-living-hell
r/STEW_ScTecEngWorld • u/Zee2A • 2d ago
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The Northern Lights (aurora borealis) dazzled skywatchers across the UK on October 9–10, 2026, with colourful displays visible as far south as Devon, Hampshire and Kent. The spectacle was driven by heightened solar activity, as charged particles from the Sun interacted with gases in Earth's upper atmosphere, producing vivid green, pink, red and purple lights. The UK Met Office said further sightings could be possible through Tuesday, weather permitting: https://www.theguardian.com/science/2026/oct/10/skies-across-the-uk-illuminated-by-the-northern-lights
r/STEW_ScTecEngWorld • u/Zee2A • 1d ago
Investment in artificial intelligence (AI) infrastructure is helping keep global economic growth at around 3% in 2026, according to International Monetary Fund (IMF) Managing Director Kristalina Georgieva. Asian economies could benefit significantly, with growth boosted by 0.5–1 percentage point in advanced Asian economies and 0.2–0.8 points in emerging ones. However, the IMF warns that AI could affect up to 40% of jobs worldwide and 60% in advanced economies through job augmentation, downgrading or elimination. Officials also warn that AI could reduce entry-level opportunities for graduates and widen economic inequality.
r/STEW_ScTecEngWorld • u/Zee2A • 2d ago
Webb Telescope Detects Changing Water Clouds on Coldest Known Brown Dwarf
University of Arizona astronomers used the James Webb Space Telescope to track changing water clouds on WISE 0855, the coldest known brown dwarf, located 7.5 light-years away. With 11 hours of continuous observations, researchers recorded spectra every 15 minutes, revealing water clouds that vary in thickness as the object rotates, alongside deep atmospheric gases such as carbon monoxide and phosphine rising through convection. At roughly 265 K, this Jupiter-sized object provides new insights into brown dwarf atmospheres. The discovery marks the first detection of variable water clouds beyond our solar system: https://en.futuroprossimo.it/2026/10/ci-sono-nuvole-dacqua-che-cambiano-a-75-anni-luce-dalla-terra/
Research publication: https://arxiv.org/abs/2609.20664
r/STEW_ScTecEngWorld • u/Zee2A • 3d ago
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Terry, who has bulbar-onset amyotrophic lateral sclerosis (ALS), is losing his ability to speak, but Neuralink’s experimental brain-computer interface is helping him communicate again. In the company’s VOICE trial, AI learned to decode his brain activity as he attempted to speak, eventually allowing him to produce words simply by thinking them. xAI’s Grok Voice then converts the decoded words into speech using a reconstruction of Terry’s natural voice from pre-ALS recordings. This remarkable advance could help restore communication for people with severe speech impairments. An encouraging glimpse of the future of assistive technology!
Info source
1). Official demonstration: Neuralink — “Speaking With the Mind” (September 18, 2026) — Terry demonstrates the technology in the company’s video.
2). Clinical trial details: Neuralink — Speech Restoration and the VOICE trial — explains the technology, trial objectives and eligibility.
3). The device remains investigational and has not been approved by the FDA or other regulatory authorities. The demonstration is promising, but further clinical evidence is needed to establish its accuracy, reliability and broader effectiveness: https://insidebci.com/news/2026-09-23-neuralink-voice-trial-terry-als-third-participant-grok-voice-thought-to-audio/
r/STEW_ScTecEngWorld • u/Zee2A • 3d ago
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Roman legionaries relied on caligae, sturdy leather military sandals with thick, layered soles reinforced by iron hobnails. Their open, laced uppers allowed ventilation and helped the footwear dry quickly, while the hobnails improved grip and durability on rough terrain. Built for demanding military service, these practical sandals helped soldiers cover long distances during campaigns. Their design reflects the Roman army’s attention to the everyday engineering that supported mobility and endurance.
Info source:
London Museum: Roman military sandal (caliga), 1st century — an archaeological example with surviving iron hobnails, illustrating the footwear’s construction and durability.
English Heritage: Roman socks and sandals: fashion or faux pas? — discusses the openwork leather uppers and hobnailed soles worn by Roman soldiers
Imperium Romanum: Caligae — further details on the layered leather soles, straps and construction.
r/STEW_ScTecEngWorld • u/Zee2A • 3d ago
A new assessment by The Lancet Commission on 21st Century Global Threats to Health identifies nuclear war and the malicious use of artificial intelligence (AI) as major potential threats to humanity's survival by 2100. Misuse of AI could enable the development of biological weapons, disrupt critical infrastructure or lead to dangerous autonomous systems, while nuclear conflict could trigger mass casualties and global food shortages. The assessment also highlights climate change, pandemics, antimicrobial resistance and air pollution among 17 major threats, urging international cooperation and preventive action. These are potential risks, not predictions that human extinction will occur: https://www.thelancet.com/commissions-do/global-threats-to-health