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Plasma

All articles tagged with #plasma

Plasma-powered laundry gun could dry-clean astronaut clothes in space
technology5 days ago

Plasma-powered laundry gun could dry-clean astronaut clothes in space

Scientists have developed a handheld “laundry gun” that sanitizes fabrics by firing cold plasma, generating oxidizing species like ozone to kill bacteria. Tested with NASA’s Marshall Space Flight Center, the pen-sized device reduced spore colonies on fabric by over 75% and could cut the need for water and cleaning chemicals on long space missions. It’s not a full replacement for washing yet, and researchers plan larger but still handheld versions, plus filtration to manage ozone. Future work could extend plasma cleaning to spacesuits and tools during spaceflight.

via Space|
#laundry-gun#nasa#plasma
Sun's surface reveals tiny plasma vortices captured in unprecedented detail
science20 days ago

Sun's surface reveals tiny plasma vortices captured in unprecedented detail

Using the world’s largest solar telescope, astronomers captured the Sun’s visible surface at unprecedented resolution, revealing vortices as small as about 12 miles wide at the edges of solar granules and linking them to Kelvin-Helmholtz instabilities driven by convection and magnetic fields, shedding light on the dynamic processes shaping the Sun’s photosphere.

via Yahoo|
#inouye-solar-telescope#kelvin-helmholtz-instability#plasma
technology2 months ago

KDE Plasma 6.7 Nears Release With Last-Minute Fixes

Ahead of Plasma 6.7's release next week, KDE is pushing final fixes—saving users from crashes tied to login monitor layout changes and wake-from-sleep after monitor updates—along with general regression fixes. The coverage also notes early 6.8 work (GTK2 theme/icon handling) and Frameworks 6.28 improvements, including a Meta-key trigger for KWin Overview and fixes for a local AVIF icon desktop issue; details are summarized in This Week in Plasma.

via Phoronix|
#bug-fixes#kde#linux
A Bolt of Chemistry: Methane Becomes Methanol in a Plasma Bubble Reactor
energy4 months ago

A Bolt of Chemistry: Methane Becomes Methanol in a Plasma Bubble Reactor

Northwestern chemists unveiled a plasma-bubble reactor coated with copper oxide that converts methane directly to methanol in a single step by applying high-voltage electricity to generate plasma, achieving roughly 97% selectivity and also yielding hydrogen and ethylene; while simpler and potentially more energy-efficient than the traditional two-step steam-reforming route, the technology still faces scaling and economic hurdles before it can compete with optimized industrial processes.

via Gizmodo|
#catalyst#energy#methane
CU Boulder Unveils Global-Unique Plasma Tunnel for Hypersonic Reentry Testing
space6 months ago

CU Boulder Unveils Global-Unique Plasma Tunnel for Hypersonic Reentry Testing

Researchers at the University of Colorado Boulder have built a plasma tunnel that mimics the extreme heat and pressure of reentry, reaching up to 9,000°F to test materials, heat shields, and sensors under hypersonic conditions; the facility can also reproduce Mars-like CO2 atmospheres, and scientists are exploring magnetic control of the plasma to potentially steer reentry, which could improve future spacecraft safety and maneuverability.

via The Daily Galaxy|
#heat-shield#hypersonic-flight#materials-science
LeAnn Rimes Documents Plasma Exchange, Describing It as an 'Oil Change' for the Body
entertainment7 months ago

LeAnn Rimes Documents Plasma Exchange, Describing It as an 'Oil Change' for the Body

LeAnn Rimes shared on Instagram that she underwent Therapeutic Plasma Exchange (removing plasma and replacing it with fresh albumin) and a stem cell boost at a Nashville clinic while on a day off from filming 9-1-1: Nashville. She explained the process as removing harmful substances from the plasma to help the body heal, likening it to an “oil change for your body,” and noted she experienced a headache afterward. Rimes emphasized openness about health treatments and acknowledged that access to such therapies isn’t universal.

via Yahoo|
#entertainment#health#instagram
Scientists Uncover Explanation for Rain on the Sun
science10 months ago

Scientists Uncover Explanation for Rain on the Sun

Researchers at the University of Hawai'i have discovered that the mysterious rain on the Sun, composed of superheated plasma, is influenced by shifting flows of elements like iron, silicon, and magnesium in the Sun's corona. This finding helps explain the rapid formation of coronal rain and suggests new insights into solar atmospheric dynamics and coronal heating. The study challenges previous models assuming constant elemental distribution and opens avenues for further research into solar phenomena.

via ScienceAlert|
#coronal-rain#elemental-flows#plasma
Scientists Uncover the Mystery Behind 'Rain' on the Sun
science10 months ago

Scientists Uncover the Mystery Behind 'Rain' on the Sun

Scientists have long struggled to explain the rapid formation of 'solar rain'—cool, dense plasma blobs that fall during solar flares. Recent research shows that allowing elemental abundances, especially low FIP elements like iron, to vary in models explains the quick cooling and condensation observed. This new understanding improves the accuracy of solar models, helping to better interpret solar activity and predict space weather effects.

via Earth.com|
#coronal-rain#plasma#science