r/STEW_ScTecEngWorld

NASA’s ultra-high-resolution computer simulations vividly show how carbon dioxide emissions from cities, power plants and wildfires rise into the atmosphere and are rapidly transported across regions and oceans by winds and weather systems. The visualizations also reveal a striking day–night cycle: vegetation absorbs CO₂ through photosynthesis during daylight and releases some through respiration at night. By tracking these sources and natural carbon sinks, the models help scientists understand where CO₂ comes from, how it moves through the atmosphere, and how roughly half of human-generated CO₂ is absorbed by land and oceans, while the remainder accumulates in the atmosphere and contributes to global warming.

Terrifying NASA Video Shows America Spewing CO2 Into Atmosphere: https://futurism.com/the-byte/nasa-video-america-co2-atmosphere

watch CO₂ move through earth's atmosphere: https://science.nasa.gov/earth/watch-carbon-dioxide-move-through-earths-atmosphere/

Carbon Dioxide - Earth Indicator: https://science.nasa.gov/earth/explore/earth-indicators/carbon-dioxide/

Why do European cities have milder winters than those in North America, despite being at the same latitude? London is at the same latitude as Calgary, Alberta. So why is the Canadian city about 15 degrees Fahrenheit (8.3 degrees Celsius) cooler in January?

The United States can be much colder than Europe at similar latitudes, not because it is farther from the Equator, but because of differences in ocean circulation, prevailing winds, topography, and continental geography. Warm Atlantic waters associated with the Gulf Stream and North Atlantic Drift help moderate Western Europe, while prevailing westerly winds carry relatively mild maritime air inland. In contrast, North America has a vast continental interior where Arctic air can travel southward with relatively few barriers. The north–south orientation of the Rockies and other mountain systems helps channel cold air into the central and eastern United States, while Europe's more ocean-dominated geography generally limits prolonged continental extremes. Thus, latitude alone does not determine climate—ocean currents, atmospheric circulation and the arrangement of land and mountains are equally important: https://www.livescience.com/planet-earth/weather/why-do-european-cities-have-milder-winters-than-those-in-north-america-despite-being-at-the-same-latitude

Why The US May Seem Colder Than Europe During The Winter Months: https://www.outdoorguide.com/2026721/why-united-states-winter-seem-colder-compared-europe/?zsource=yahoo

Bedrock Robotics, founded by former Waymo engineers, says its AI-powered excavators are now operating without human operators in the cab on live commercial construction sites in the United States. The company retrofits existing 20- to 80-ton excavators with sensors, onboard computing and its Bedrock Operator software rather than building new machines from scratch. Bedrock has raised $270 million in Series B funding at a $1.75 billion valuation, bringing total funding above $350 million, as it expands from supervised autonomy toward fully operator-less construction equipment: https://technologymagazine.com/globenewswire/3346247

First came self-driving cars. Now, Waymo veterans are building autonomous construction equipment.: https://www.businessinsider.com/bedrock-robotics-construction-ai-excavators-2026-8

Video: https://www.linkedin.com/posts/bsofman_today-bedrock-robotics-announces-the-first-ever-ugcPost-7495006454437801984-OmLQ/

Quaise Energy, an MIT-born startup, is developing a novel drilling technology that uses powerful millimeter-wave energy generated by gyrotrons to vaporize hard rock. The company ultimately aims to drill as deep as 20 kilometers (12.4 miles), where temperatures could reach around 500°C, unlocking superhot geothermal resources capable of producing far more energy than conventional geothermal systems. Its Project Obsidian in Central Oregon is intended to demonstrate the technology at a depth of about 5 kilometers, with commercial operation targeted for 2030, , initially supplying 50 megawatts (MW) of zero-carbon baseload power before scaling up to 250 MW. If successful, the approach could enable reliable, low-carbon geothermal power while potentially reusing existing fossil-fuel power infrastructure:  https://www.eurekalert.org/news-releases/1125285

Project Obsidian: the future of energy is now: https://www.linkedin.com/posts/introducing-project-obsidian-ugcPost-7449846884052934656-BXFv/

This startup plans to drill 20 km into the Earth: https://www.youtube.com/shorts/rfWSUmLgtrQ

Quaise is taking its technology from MIT lab to field trials for the first time: https://www.technologyreview.com/2025/07/22/1120545/geothermal-drilling-quaise/

Stanford epigenetics scientist Dr. Lucia Aronica explains that genes are not simply fixed destiny. While DNA provides the biological “hardware,” lifestyle factors such as diet, exercise and stress can influence how genes are switched on or off through epigenetic mechanisms. Her research, including analysis related to the Stanford DIETFITS study, suggests that healthy whole-food diets can improve metabolic and epigenetic markers associated with conditions such as type 2 diabetes and weight gain. Her “epinutrition” approach highlights nutrients such as folate, choline and vitamin B12, along with polyphenols, omega-3 fatty acids and sulforaphane, which may support healthy gene regulation. The broader message is that daily habits can substantially influence metabolic health and biological aging, while healthy relationships, psychological well-being and enjoyment of life also contribute to longevity: https://www.melrobbins.com/episode/episode-391/

Youtube Channel: https://www.youtube.com/channel/UCXFaVKe8JxWyZviKqtiT9lQ

Study: https://www.medrxiv.org/content/10.1101/2023.12.26.23300543v1

In China’s Niujiu River Grand Canyon, two massive outdoor glass elevators have transformed access to a remote mountain school, turning a dangerous two-hour cliffside trek into a ride of just 57 seconds. The latest 288-m (945-ft) Fuyao Ladder operates alongside a 268-m elevator, helping students from Nizhuhe Village reach their boarding school safely and dramatically reducing their journey time. Built at a cost of about $9.5 million, the engineering marvel can transport up to 1,200 people per hour, ensuring local students no longer have to risk their lives navigating steep mountain trails to reach school: https://interestingengineering.com/transportation/china-945-foot-cliff-elevator

More: https://newatlas.com/engineering/watch-epic-cliff-elevator-china/

Video: https://www.youtube.com/watch?v=3XgPuOhg6Jg&t=9s

Hungary Sinks 260 feet Barges in Danube to Keep 2,000 MW Paks Nuclear Plant Running

Hungary has taken the unusual step of sinking two large barges in the Danube near the Paks nuclear power plant to temporarily raise water levels and ensure enough cooling water reaches the facility. The emergency measure comes as a historic drought has pushed the Danube to record-low levels, forcing Paks to operate at only about 25% of capacity. Hungary is also constructing an underwater riverbed sill as a longer-term solution to maintain adequate cooling water: https://www.euronews.com/my-europe/2026/08/18/hungary-opens-sluice-and-sinks-barges-to-protect-nuclear-plant-as-danube-levels-fall

Full video: https://www.dw.com/en/hungary-sinks-barges-to-keep-nuclear-plant-running/svideo-78388806

The Leak Stop Gun is a rapid emergency leak-sealing system represented in France by EMA-TECH. Powered by compressed CO₂, it fires an inflatable sealing balloon directly onto a puncture, creating a watertight or airtight barrier within seconds—even while the system remains pressurized. Designed for use on land or underwater, the tool can adapt to rough or uneven surfaces and is intended for emergency applications in industrial facilities, ships, pipelines and firefighting operations, helping contain leaks without immediately shutting down the flow: https://marineforum.online/en/leak-stop-gun-leak-defence-technology-time-saving/

General Intelligence Labs has launched the EGO1GS, an egocentric headset designed to capture high-quality first-person video for training robots. It records dual 1080p global-shutter stereo video with a 157° × 84° field of view, a 400 Hz 9-DoF IMU, and stereo audio, all synchronized to a single hardware clock and stored in one time-aligned .mcap file. Its on-device EgoHand model detects the operator’s hands in every frame, providing immediate feedback on whether the hands are properly captured—helping produce cleaner, more useful datasets for teaching robots to understand and reproduce human actions: https://www.linkedin.com/pulse/introducing-gi-ego1gs-worlds-first-smart-egocentric-30vic/

General Inteeligence Labs: https://www.gilabs.xyz/blog/ego1

Developed by researchers at Duke University, Argus is a spherical, sea-urchin-like robot equipped with 20 telescoping legs, each carrying a depth-sensing camera. Its symmetrical dodecahedral design gives it no fixed front or back, allowing it to move, see and exert force in any direction without turning around. Designed for challenging environments, Argus can traverse sand, wet surfaces and rough terrain, climb between parallel walls, and continue operating even when several legs are damaged. The technology could eventually lead to highly resilient robots for search-and-rescue operations, deep-sea exploration and space missions: https://pratt.duke.edu/news/argus-robot-design/

Full Video: https://www.youtube.com/watch?v=ivufnqS3pRc&t=3s

Paper: https://generalroboticslab.com/Argus