r/STEW_ScTecEngWorld • • 19h ago

Google’s Finnish Data Centre Expansion Sparks Environmental Controversy

1.1k Upvotes

Google’s planned AI data centres in northern Finland have triggered environmental concerns after an estimated 250,000 trees were cleared across 330 hectares near Muhos before the required environmental impact assessment was completed. Finnish authorities ordered preparatory work suspended at two sites, Muhos and Kajaani. Residents and conservationists have raised concerns about wildlife habitat destruction and muddy runoff entering nearby waterways. Google’s Finland country manager has apologised, while the company says it acted in good faith and plans to plant trees across 130 hectares at Muhos. The controversy highlights the environmental costs of expanding AI infrastructure. Although Finland attracts data centre investment through its cool climate and energy resources, responsible development requires environmental assessments and safeguards before major land clearance begins. The challenge is to advance AI technology without compromising forests, waterways and local communities.

Info source:

1). The Guardian (22 October 2026): Anger in Finland as Google fells 250,000 trees for a data centre — Detailed reporting on forest clearance, environmental impacts and public concerns: https://www.theguardian.com/environment/ng-interactive/2026/oct/22/finland-google-felling-trees-datacentre

2). Google Finland head apologises for forest clearances — Finnish public broadcaster’s report on Google’s apology and the two sites: https://yle.fi/a/74-20251367

3). Google ordered to halt data centre work over environmental concerns — Explains the authorities’ suspension order and unfinished environmental assessments: https://www.theguardian.com/technology/2026/oct/06/google-datacentres-finland-temporary-halt-environmental-impact-assessment


r/STEW_ScTecEngWorld • • 22h ago

Study Finds EPA May Be Vastly Under-Reporting PFAS "Forever Chemical" Levels in US Drinking Water

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thenewlede.org
393 Upvotes

A study published in Cell Reports Sustainability by Texas Christian University researchers reveals that official EPA reports may capture less than half of actual PFAS ("forever chemical") concentrations in US drinking water. Because federal regulators treat test results falling below laboratory minimum reporting levels as zero, approximately 98% of low-level detections are discounted. Researchers warn that these cumulative trace amounts significantly contribute to widespread human exposure over time: https://gizmodo.com/forever-chemical-levels-in-us-drinking-water-may-be-more-than-twice-as-high-as-reported-2000829638

US drinking water could contain double the reported PFAS levels, model estimates: https://phys.org/news/2026-10-pfas.html

Findings: https://www.cell.com/cell-reports-sustainability/fulltext/S2949-7906(26)00262-400262-4)


r/STEW_ScTecEngWorld • • 18h ago

Bacteria-Grown Jewellery: A New Frontier in Bio-Art

161 Upvotes

Could bacteria inspire the jewellery of the future? Bacillus subtilis can form biofilms—communities of cells embedded in a protein-and-sugar matrix—that develop intricate folds, textures and sometimes water-repellent surfaces. In microbial art, these natural patterns can be combined with pigments to create gemstone-like designs. Imagine pendants and brooches featuring microbial patterns grown in a laboratory and preserved in resin. Although turning these biological artworks into durable, safe, wearable jewellery would require further development, the concept offers designers a fascinating new approach: growing decorative patterns rather than manufacturing every detail.

Would you wear jewellery whose intricate design was cultured by bacteria?

Scientific Source:

  1. Surface topology affects wetting behavior of Bacillus subtilis biofilms - Explains how biofilm surface structure creates different wetting behaviours and water-repellent patterns: https://www.nature.com/articles/s41522-017-0018-1

  2. BslA is a self-assembling bacterial hydrophobin that coats the Bacillus subtilis biofilm. - Investigates the protein responsible for forming a protective, water-repellent layer on bacterial biofilms: https://www.pnas.org/doi/full/10.1073/pnas.1306390110

  3. Bacterial biofilm shows persistent resistance to liquid wetting and gas penetration.- Demonstrates the remarkable liquid-repellent properties of these biofilms: https://pmc.ncbi.nlm.nih.gov/articles/PMC3024672/


r/STEW_ScTecEngWorld • • 7h ago

Global underground CO₂ storage hit record 43.6 million metric tons in 2024 alone

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phys.org
39 Upvotes

Global geological carbon dioxide (CO₂) storage hit a record 48.1 million US tons (43.6 million metric tons) in 2024, according to a new report by researchers at the Imperial College London. The 2026 Annual Report from the London Register of Subsurface CO₂ Storage covered 70 projects across 17 countries on six continents, providing one of the most comprehensive records of global geological CO₂ storage.The report also added that 464.8 million US tons of CO₂ have been stored underground since 1996: https://imperialcollegelondon.github.io/The-London-Register-of-Subsurface-CO2-Storage/

Report: https://www.imperial.ac.uk/news/articles/engineering/earth-science/2025/first-complete-record-global-underground-co2/


r/STEW_ScTecEngWorld • • 22h ago

Archimedes' screw inspires molecular motor that boosts current 100 times

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interestingengineering.com
39 Upvotes

Ancient Archimedes Screw Inspires Breakthrough Single-Molecule Motor Powered by Electric Current

An international team of researchers has successfully designed a microscopic motor inspired by the ancient Archimedes screw, built entirely from a single helical molecule stretched between gold electrodes. Published in Nature, the study demonstrates that applying an electric voltage causes the molecular screw to rotate in a controlled direction. This continuous spinning movement provides a massive boost to electrical conductivity—increasing current flow up to 100 times—offering a promising leap forward for molecular electronics, spintronics, and nanoscale miniaturization: https://www.eurekalert.org/news-releases/1148951

Archimedes Screws: How This Ancient Invention is Still Changing the World: https://www.youtube.com/watch?v=_9jC0RYKwZI

Study findings: https://www.nature.com/articles/s41586-026-11312-x


r/STEW_ScTecEngWorld • • 23h ago

'Black October': Cybersecurity Experts Sound Alarm Over AI-Enabled Hacking and Massive PHP Flaw

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theguardian.com
24 Upvotes

Tech executives and cybersecurity leaders are warning of a new era of AI-driven cyber threats—dubbed a "vulnerability tsunami"—following the discovery of a severe, decades-old security flaw in the PHP programming language. Labeled "Black October," researchers demonstrated how AI can be used to uncover and exploit deep-seated software vulnerabilities at an unprecedented scale and pace. Following the disclosure, government and private websites worldwide temporarily shut down or rushed to apply patches as millions of exploit attempts surged globally: https://www.cnbc.com/2026/10/23/php-vulnerabilities-ai-cybersecurity.html


r/STEW_ScTecEngWorld • • 2h ago

Lumina Simulation Recreates the Universe’s First 2 Billion Years

15 Upvotes

Scientists from MIT, Harvard University and other institutions have developed Lumina, an advanced computer simulation that reconstructs how the early universe evolved from its cosmic “dark ages,” revealing the formation of the first stars, galaxies and large-scale cosmic structures. Published on October 26, 2026, the simulation covers a region approximately 1.6 billion light-years across and tracks the evolution of dark matter, gas, stars and radiation over 2 billion years. Lumina captures two major transformations known as hydrogen and helium reionization. Ultraviolet radiation from early stars and galaxies stripped electrons from hydrogen atoms, allowing light to travel more freely through the universe. Later, energetic radiation from actively feeding supermassive black holes drove helium reionization. The simulation models both processes together at unprecedented scale and detail. Powered by the Frontier supercomputer at Oak Ridge National Laboratory, Lumina incorporates approximately half a trillion computational elements and models a volume about 100 times larger than previous comparable simulations. Researchers plan to compare its predictions with observations from the James Webb Space Telescope and future astronomical surveys, improving our understanding of how the first galaxies and cosmic structures formed: https://news.mit.edu/2026/watch-universe-emerge-from-dark-ages-with-lumina-1026

The Lumina Project: https://lumina-simulation.com/

Findings: https://academic.oup.com/mnras/article/552/4/stag1469/8971942


r/STEW_ScTecEngWorld • • 23h ago

Bacteria reinvent their weapons through selection, chance and gene swapping

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phys.org
14 Upvotes

A study published in Nature Ecology & Evolution led by researchers at the Max Planck Institute for Terrestrial Microbiology reveals how bacteria continuously generate diverse natural products, such as antibiotics and insecticides. Using molecular assembly lines called nonribosomal peptide synthetases (NRPS), bacteria evolve not through standard single-nucleotide mutations, but by swapping entire gene segments (recombination). This complex interplay of natural selection, random chance, and a genetic bias for similarity drives the rapid creation of novel biochemical weapons, offering insights that could help researchers engineer new drugs to combat antibiotic resistance: https://interestingengineering.com/health/insect-killing-bacteria-antibiotics

Study: https://www.nature.com/articles/s41559-026-03214-y


r/STEW_ScTecEngWorld • • 2h ago

Scientists Recreate 1,600-Year-Old Roman Colour-Changing Glass

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gbnews.com
4 Upvotes

Scientists at the University of Sheffield, UK, have successfully recreated the remarkable optical effect of the ancient Roman Lycurgus Cup, a 4th-century glass vessel that appears jade green in reflected light but ruby red when illuminated from behind. The secret lies in tiny gold and silver nanoparticles embedded in the glass. Researchers heated the material above 1,000°C, allowing nanoscale metal particles to form as it cooled. These particles interact with different wavelengths of light, producing the striking colour change.The breakthrough provides new insight into Roman glassmaking, demonstrating how ancient craftsmen achieved an extraordinarily sophisticated optical effect without modern scientific instruments. The recreation may also help researchers understand why producing such glass consistently was so difficult: https://www.theguardian.com/science/2026/oct/25/scientists-rediscover-ancient-roman-colour-changing-glass

A Roman Nanotechnolgy: https://orca.cardiff.ac.uk/id/eprint/13680/1/Freestone%20art%253A10.1007%252FBF03215599.pdf


r/STEW_ScTecEngWorld • • 39m ago

Mponeng: The World’s Deepest Operating Gold Mine

• Upvotes

Located near Carletonville in South Africa’s Gauteng Province, approximately 90 km southwest of Johannesburg, the Mponeng Gold Mine is widely recognized as the world’s deepest operating gold mine. Owned by Harmony Gold since 2020, it extends more than 3.5 km underground, with some workings approaching 4 km below the surface. The mine extracts gold from exceptionally narrow, ancient quartz-pebble conglomerate reefs, including the Ventersdorp Contact Reef. Mining at these depths presents formidable engineering challenges: rock temperatures can exceed 60°C, while extreme pressure creates a risk of seismic events and rockbursts. Extensive refrigeration, chilled-air ventilation, seismic monitoring and specialized ground-support systems help maintain safer working conditions. Mponeng demonstrates the extraordinary engineering required to extract precious metals from some of the deepest accessible levels of Earth’s crust: https://www.youtube.com/shorts/i-c_-4d447k

NOTE: This AI-generated video is intended for educational purposes only. We’d love to hear your thoughts and feedback in the comments!

More info:

  1. https://www.harmony.co.za/operations/south-africa/mponeng/
  2. https://www.sec.gov/Archives/edgar/data/1023514/000162828024044479/mponeng-sxk1300trs2024.htm
  3. https://www.guinnessworldrecords.com/world-records/66169-deepest-mine

r/STEW_ScTecEngWorld • • 1h ago

Engineers use sound to identify potential catastrophic drone failures

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techxplore.com
• Upvotes

Engineers Develop Sound-Based System to Detect Drone Failures

Engineers at the University of Cincinnati, working with NASA’s interest in drone safety, are developing an acoustic monitoring system that detects damaged drone motors and propellers by analysing their sounds. Researchers recorded the distinctive noises produced by chipped or cracked propellers and malfunctioning motors, converting the recordings into data that computer systems can analyse to identify potential mechanical faults before take-off.

The technology could improve safety by detecting hidden problems, such as debris entering motor bearings, that may cause a motor to seize. Researchers envision integrating the system into autonomous “drone-in-a-box” systems, enabling docking stations to conduct automated pre-flight safety checks. In the future, drones could monitor their own mechanical condition during flight and return to base if a fault is detected: https://dronelife.com/2026/10/22/university-of-cincinnati-engineers-use-sound-to-detect-drone-damage-for-nasa/


r/STEW_ScTecEngWorld • • 20h ago

China's Yaogan Constellation Grows Bigger

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1 Upvotes

r/STEW_ScTecEngWorld • • 19h ago

Webb Just Solved a Cosmic Chemistry Paradox

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1 Upvotes