Tag

Melting

All articles tagged with #melting

science7 days ago•26 min saved

Diamond Melts into Metallic Liquid Carbon at Sun-Heat Temperatures Under Planetary Pressures

Scientists at LLNL’s Omega laser facility squeezed synthetic diamonds to about one terapascal and temperatures around 7,300 kelvin, watching the crystal lattice vanish as the diamond melted into a dense, metallic liquid carbon with no intermediate phase. The result pins the melting temperature at ~7,300 K at 1 TPa, resolving a roughly 20-year discrepancy with simulations and confirming diamond’s melt into an electrically conducting carbon fluid under extreme conditions.

via ZME Science|

#carbon #diamond #high-pressure

science11 days ago•8 min saved

Diamond melts under extreme pressure, defying expected phase changes

Scientists used the OMEGA laser to shock tiny diamond samples to 0.6–1.8 terapascals, heating them to about 7,300 kelvin. They observed diamond melting directly into liquid carbon without forming the predicted BC8 phase, with the crystal lattice persisting until melting and a surprising density reversal where solid diamond becomes less dense than its liquid. The findings resolve earlier temperature discrepancies, align with theory, and have implications for inertial confinement fusion models and the study of planetary interiors.

via ScienceAlert|

#carbon #diamond #high-pressure

science29 days ago•6 min saved

Tabletop spacetime crystal melts in three stages, showing time and space order can detach

Physicists built a tabletop spacetime crystal from hundreds of plastic disks on a vibrating plate and observed a three-stage melt: temporal order decays locally, then rhythm collapses system-wide, and finally the spatial lattice disintegrates into a disordered fluid. The experiments, a classical analog to quantum spacetime crystals, reveal that spatial and temporal orders can melt independently due to two distinct mechanisms, offering new ways to study spatiotemporal symmetry-breaking. Findings published in PNAS (2026).

via ScienceAlert|

#classical-analog #melting #phase-transitions

weather7 months ago•3 min saved

Dallas Roads Begin to Melt as Sun Returns and Temps Rise

Dallas ice from freezing rain, sleet and snow is set to start melting as Monday’s sun and sublimation take hold; temperatures will rise above freezing by Tuesday morning and into the 40s by Tuesday afternoon, accelerating melting, with more thaw expected midweek as sunlight continues. A cold overnight could cause limited re-freezing, and a few leftovers may linger into Thursday.

via wfaa.com|

#dallas #ice #melting

science7 months ago•3 min saved

Iconic Blue Iceberg Nears Disintegration, NASA Reports

NASA reports that the massive Antarctic iceberg A23a has turned blue due to meltwater and is nearing complete disintegration, likely within weeks, as it drifts into warmer waters and shows signs of structural failure.

via CBS News|

#a23a #climate-change #iceberg

technology8 months ago•2 min saved

RTX 5090 16-Pin Power Connector Burns Out Despite Using Original Cable

A Reddit user reported that his NVIDIA RTX 5090's 16-pin power connector caught fire and was severely burned, raising safety concerns as such failures are rare and dangerous, despite using a certified PSU and proper cables.

via Wccftech|

#fire #gpu-connector #melting

weather8 months ago•3 min saved

Mild Christmas Week with Slightly Cooler Days and Melting Ahead

Temperatures in Minnesota will be slightly cooler on Tuesday but remain above normal, with ongoing melting through the week. A stalled cold front causes a contrast in temperatures across the state, and milder weather is expected to continue into Christmas. Weather patterns influenced by a wet West Coast and a wavy jet stream keep the region milder than usual, though colder air is expected to arrive by the weekend, bringing snow and lower temperatures.

via MPR News|

#forecast #melting #minnesota

environment8 months ago•4 min saved

Alpine Glaciers Face Peak Extinction by 2050, Study Warns

Glaciers in the European Alps are projected to reach their peak rate of extinction in eight years, with over 100 expected to vanish permanently by 2033, driven by human-caused global warming. Similar rapid losses are forecasted in North America and other regions, with significant implications for ecosystems, water resources, and cultural heritage. Urgent climate action and adaptation strategies are needed to mitigate these impacts.

via The Guardian|

#alps #climate-change #environment

environment8 months ago•1 min saved

Alpine Glaciers Face Near-Complete Extinction by Century's End

A recent study warns that Europe's Alps could lose 97% of their glaciers by the end of the century due to climate change, highlighting significant environmental concerns. The article also touches on political debates over the EU's green policies and climate action efforts, including the car industry and international climate summits.

via politico.eu|

#alps #climate-change #environment

environment10 months ago•4 min saved

California's Glaciers Melting: First Ice-Free Peaks in Millennia

The glaciers in California's Sierra Nevada, some of which have existed since the last Ice Age over 11,000 years ago, are rapidly retreating and are projected to disappear entirely within this century due to rising global temperatures, with significant impacts on local ecosystems and water resources.

via Los Angeles Times|

#california #climate-change #environment

science11 months ago•2 min saved

Researchers uncover alarming changes in massive ice shelf

Researchers drilling into the Ronne ice shelf in Antarctica discovered that strong tides significantly accelerate melting by causing friction and warming beneath the ice, which weakens the shelf's ability to hold back land ice, contributing to rising sea levels and ecological impacts. The study highlights the urgent need for reducing pollution and exploring intervention strategies to preserve ice shelves and mitigate climate change effects.

via Yahoo|

#antarctica #climate-change #ice-shelves

science11 months ago•4 min saved

Ancient Massive Antarctic Iceberg Disintegrates After Four Decades

The world's largest and oldest iceberg, A23a, is breaking apart and melting in the South Atlantic Ocean after nearly 40 years, providing scientists with valuable insights into iceberg life cycles and environmental impacts, though its demise is a normal part of natural processes rather than climate change.

via NPR|

#a23a #antarctica #climate-change

world1 year ago•3 min saved

Missing Father’s Body Discovered Intact in Pakistan Glacier After 28 Years

The body of Nasiruddin, a man missing for 28 years after falling into a glacier in Pakistan, was found on the melting Lady Meadows glacier, highlighting the impact of climate change on glacier receding and the subsequent uncovering of long-lost remains.

via CBS News|

#body-discovery #climate-change #glacier

science1 year ago•4 min saved

Innovations in Melting-Resistant Ice Creams

Scientists are exploring the use of polyphenols, natural antioxidants found in fruits, to create ice cream that resists melting by forming a supportive network within the cream, potentially leading to more durable frozen desserts, though it may alter texture and does not prevent melting entirely.

via BBC|

#food-science #ice-cream #melting

environment1 year ago•4 min saved

Arctic Winter Faces Unprecedented Melting in Svalbard

Scientists in Svalbard have observed unprecedented winter warming, with temperatures rising enough to cause snowmelt and vegetation bloom, challenging previous assumptions about Arctic winter stability and highlighting urgent needs for enhanced monitoring and policy adaptation to address rapid climate change impacts.

via Phys.org|

#arctic #climate-change #environment