БЛОГ

Page 132

Nov 6, 2024

See Spacecraft Views: Sun Blasts Massive X4.5-Class Solar Flare

Posted by in categories: nuclear energy, space travel

Researchers have been performing these experiments for nearly 30 years but they always encounter the same problem: the bottle technique yields an average neutron survival time of 880 s, while the beam method produces a lifetime of 888 s. Importantly, this eight-second difference is larger than the uncertainties of the measurements, meaning that known sources of error cannot explain it.

A mix of different neutron states?

A team led by Benjamin Koch and Felix Hummel of TU Wien’s Institute of Theoretical Physics is now suggesting that the discrepancy could be caused by nuclear decay producing free neutrons in a mix of different states. Some neutrons might be in the ground state, for example, while others could be in a higher-energy excited state. This would alter the neutrons’ lifetimes, they say, because elements in the so-called transition matrix that describes how neutrons decay into protons would be different for neutrons in excited states and neutrons in ground states.

Nov 6, 2024

X-59 Fires Up its Engine for First Time on Its Way to Takeoff

Posted by in categories: energy, transportation

Lee esta historia en español aquí.

NASA’s Quesst mission marked a major milestone with the start of tests on the engine that will power the quiet supersonic X-59 experimental aircraft.

These engine-run tests, which began Oct. 30, allow the X-59 team to verify the aircraft’s systems are working together while powered by its own engine. In previous tests, the X-59 used external sources for power. The engine-run tests set the stage for the next phase of the experimental aircraft’s progress toward flight.

Nov 6, 2024

Soft Polymer Wireless Devices Can Gently Wrap Around Neurons

Posted by in categories: biotech/medical, neuroscience, wearables

A study presents battery-free, polymer-based wearable devices that wrap around neurons, allowing for real-time monitoring and modulation of cellular activity. This innovation aims to restore neuronal function in conditions like multiple sclerosis.

Nov 6, 2024

Scientists can tweak one gene to extend lifespans by up to 30%

Posted by in category: life extension

A new study could help further attempts to slow human aging as gene tweaking experiments have improved the lifespans of fruit flies by 30%.

Nov 6, 2024

Hawaii’s underwater volcano rocked by dozens of earthquakes since the weekend

Posted by in category: futurism

An undersea volcano off the southeastern coast of the Big Island of Hawaii has been rocked by a swarm of more than 70 earthquakes since the weekend, according to the U.S. Geological Survey.

Nov 6, 2024

Perplexity AI in Final Stages of Raising $500 Million Round at $9 Billion Valuation

Posted by in category: robotics/AI

The startup competes against the likes of Google and ChatGPT-maker OpenAI.

Nov 6, 2024

Breakthrough In Growing Lip Cells In The Lab Could Help Develop Medical Treatments

Posted by in categories: biotech/medical, innovation

More than paying lip service, the cells may offer new opportunities to research and treat various lip conditions.

Nov 6, 2024

Docking Complete: SpaceX Dragon Soars to ISS with 6,000 Pounds of Science and Supplies

Posted by in categories: science, space travel

At 9:52 a.m. EST, the SpaceX Dragon spacecraft successfully docked to the forward port of the International Space Stations Harmony module.

This mission, SpaceX’s 31st commercial resupply service for NASA, delivered over 6,000 pounds of scientific equipment and cargo to the space station. The journey began at 9:29 a.m. on November 4, when a SpaceX Falcon 9 rocket launched from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.

Nov 6, 2024

Stunning 450-Million-Year-Old Fossil Preserved in Fool’s Gold Reveals Evolution’s Secrets

Posted by in category: evolution

A new 450-million-year-old arthropod fossil, Lomankus edgecombei, has been uncovered in New York, revealing crucial evolutionary shifts in appendage function from predation to environmental sensing among ancient arthropods. A new 450-million-year-old fossil arthropod, preserved in 3D by iron py.

Nov 6, 2024

Habitable Zones Aren’t Always Safe Havens: The Hidden Cosmic Perils Facing Potential Life

Posted by in category: alien life

When considering the potential for life on exoplanets, scientists often focus on the habitable zone, the region around a star where conditions might allow liquid water to exist. However, new research suggests that this concept alone oversimplifies the dangers these planets face. It’s not just about being in the right place; it’s also about avoiding interstellar chaos.

While identifying exoplanets in the habitable zone is a crucial step in the search for extraterrestrial life, their environments can be treacherous. In a study soon to be published in The Astronomical Journal, researchers led by Tisyagupta Pyne from Visva-Bharati University highlight the threats lurking in dense stellar neighborhoods. Stellar flybys and catastrophic supernovae explosions have the power to disrupt entire planetary systems, stripping atmospheres or ejecting planets into interstellar space.

Page 132 of 12,074First129130131132133134135136Last