Articles tagged with Ice
A new study by Queen's University researchers found that antifreeze proteins can superheat ice crystals, stabilizing them above the melting point for hours. This discovery has implications for understanding ice recrystallization in nature and food storage.
Researchers have isolated a novel antifreeze molecule, xylomannan, from an Alaskan beetle that can survive temperatures below -100 degrees Fahrenheit. The discovery offers hope for developing new methods to resist freezing and has implications for understanding cell membrane function.
The study reveals a significant ice loss on Mount Kilimanjaro, primarily attributed to rising global temperatures. The ice volume has decreased by roughly equal proportions through thinning and shrinking, with 85% of the ice lost since 1912.
Researchers found missing radioactive signals in Tibetan ice cores, indicating the Himalayan glacier has shrunk at least since the A-bomb test half a century ago. The loss of freshwater from glaciers could impact nearly half a billion people in India.
Fluorescence microscopy reveals how antifreeze proteins protect insect cells from freezing, providing insights into their hyperactive properties. The study also explores potential applications in medical transplants, frostbite prevention, and agricultural protection.
Scientists have gained unprecedented insight into the internal structure and melting rate of the Filchner-Ronne Ice Shelf using phase-sensitive radar. The results show that an average of 1m of ice is melted from the bottom of the ice shelf every year, with no signs of change due to replenishment by upstream ice flow.
Scientists have discovered a creep mechanism in high-pressure phases of ice that affects grain size, indicating weaker ice layers in giant icy moons. This finding challenges previous theories on the thermal evolution and internal dynamics of these moons.
Using polarized light, NASA scientist Peter Wasilewski analyzes the colors and patterns in ice crystals to determine their type and consistency for various Olympic sports. He also examines snowflake shapes and forms to understand how they affect performance.
A new process, Organ Recovery Systems, preserves transplant tissues/organs at refrigerator temperatures and minimizes damage from ice crystals. This technique reduces toxicity of cryoprotectants and enables long-term storage, potentially increasing organ availability worldwide.
Scientists now believe that small amounts of impurities, such as sodium chloride, are necessary to form the domes on Europa's surface. These compounds melt ice at low temperatures, allowing warmer blobs of ice to push through the icy shell and create the domes.
Breakthroughs in snow making and ski design are transforming the industry. Advances in understanding snowflake formation will improve skiing and our knowledge of the natural world. Researchers also explore the applications of snow science to condensed matter and the origins of arctic phenomena like 'rock circles' and lightning.
Scientists uncover a unique ecosystem in Lake Vida, with ancient organic material and sediment, and a liquid zone beneath the ice. The discovery provides insights into the evolution of life on Earth and potentially offers clues to finding signs of ancient Martian microbial life.
A team of researchers at Penn State has developed a compact chiller that uses sound waves to cool ice cream, achieving temperatures below freezing point with minimal energy consumption. The innovative system, powered by high-amplitude sound energy, has the potential to revolutionize the way we produce and consume refrigerated foods.
Research shows that lower dasher rates can produce ice cream with the same physical structure and sensory attributes as higher rates, reducing energy consumption and increasing efficiency. The balance of ingredients, including milk fat, emulsifiers, and air, is crucial in achieving desired quality and texture.
Researchers discover wheat proteins that modify ice crystal growth, improving ice cream smoothness. The discovery could lead to new ingredients and manufacturing processes for improved consistency.
A new study reveals that warmer surface temperatures during summers can cause ice shelves to collapse, leading to increased ice flow and sea-level rise. The research found that added pressure from meltwater can crack ice shelves, causing portions to float away and eventually melt.
A study by Slawek Tulaczyk and Marion Bougamont reveals that the West Antarctic ice stream may slow down and stop moving altogether, leading to thinning and shrinking of the ice shelves. This could have dramatic consequences for global ocean circulation and climate.
Geologists propose that high-pressure ice could accumulate in planetary interiors during subduction, potentially influencing tectonic activity and volcanic eruptions on Earth and Mars. This process may also impact the planet's thermal balance, with changes in water state affecting dynamics and evolution.
A case study in British Journal of Sports Medicine reports a physical education teacher who suffered from permanent nerve damage after using a frozen chip ice pack for at least 40 minutes. The authors recommend applying ice packs with caution and limiting the application time to 30 minutes or less.
A recent study found consistent evidence of later freeze and earlier breakup of ice on northern waterways over a 150-year span, corresponding to a 1.8 degrees Centigrade increase in air temperature. The trend suggests climate change, but other drivers like solar activity may also be involved.
Scientists have assembled a 150-year lake and river ice record spanning the Northern Hemisphere, showing a steady warming trend. The average rate of change over the 150-year period was 8.7 days later for freeze dates and 9.8 days earlier for breakup dates.
Researchers have developed a new technique called ICE that tests materials under extreme magnetic forces without explosions. The technique allows for faster and less expensive testing over a wide range of stress conditions.
Scientists develop a simple thermodynamic model to describe ice particle formation in atmosphere, independent of solute nature. The model requires only temperature and relative humidity as parameters.
Researchers at UNC-CH successfully created six-molecule water rings, mimicking natural ice structure. This achievement aims to boost knowledge of water's unique properties and hydrogen bonding forces.
Researchers use Canadian Radarsat satellite data to uncover tributaries feeding giant ice streams, changing understanding of Antarctic ice sheet dynamics. High-resolution radar maps reveal complex patterns and fast-flowing glaciers, shedding light on the continent's past and potential sea level rise
Researchers have found evidence of bacterial life in the Antarctic ice core, suggesting that microbes can thrive in extreme environments. The discovery provides insight into potential extraterrestrial habitats and could aid in designing samplers for future missions to Europa.
A team led by MSU biologist John Priscu has discovered bacteria in an ice core from Lake Vostok, a subglacial body of water under the East Antarctic ice cap. The finding suggests that microorganisms can thrive in extreme environments, even under millions of years of isolation.
Researchers have discovered a prehistoric virus in Arctic ice that could potentially re-emerge as the climate warms. The ancient tomato mosaic tobamovirus was found in ice cores dating back 500 to 140,000 years, raising concerns about the possibility of new epidemics.
Researchers investigate microorganisms found in Siberia's permafrost, glaciers, and polar ice caps, which could hold clues to life on Mars. The study aims to develop techniques for exploring icy worlds and understanding the potential for life beyond Earth.
A new study by Purdue University researchers reveals that snowpacks not only absorb chemicals but also produce them in the Arctic atmosphere. The findings challenge previous assumptions about how atmospheric gases are processed and may require a re-evaluation of data from ice core studies.
Researchers from CU-Boulder will create a virtual sensor by combining data from two instruments orbiting NASA's Mars Global Surveyor satellite. They aim to identify the surface composition of Mars' polar ice and plot its perimeters, gaining insights into climate change on both Earth and Mars.
A team of plant biologists at the University of York have isolated the first plant antifreeze protein found in carrots. This discovery has potential applications in improving frozen food quality, cryoprotection of medical tissues, and increasing frost tolerance for crops.
Researchers found a community of microorganisms thriving in Antarctica's Lake Bonney and several other lakes. The microbes can survive in an environment similar to Popsicles, using sunlight to create pockets of liquid water.
Scientists have discovered teeming microbe colonies beneath Antarctic ice that use sunlight to sustain life when the South Pole tilts towards the sun. The researchers found diverse microorganisms, including blue-green algae and bacteria, supported by photosynthesis and atmospheric nitrogen fixation.
Researchers used low-energy helium atom scattering to study the topmost layer of ice, finding that water molecules vibrate strongly, causing a coherent diffraction pattern to be elusive. The results explain why ice is slippery, adheres to other ice surfaces, and traps molecules in the stratosphere, leading to ozone depletion.
A Dartmouth physicist has discovered that applying a small electric voltage across an ice-metal interface can break the bond between ice and metal surfaces, potentially preventing or reducing icing on airplane wings. The effect of the voltage can be reversed to increase ice adhesion, which could improve traction on icy roads.
A team of scientists uncovered how protons move and share in hydrogen bonds under extreme pressure, shedding light on biological processes like enzyme catalysis. This discovery could lead to advancements in materials science and chemistry.
Researchers at Ohio State University have retrieved the first ice cores from the Dasuopu Glacier, a 40-meter-wide ice field on the Tibetan Plateau. The cores contain glacial stage ice dating back at least 12,000 years and are expected to provide valuable insights into the monsoonal climate system.
New Arecibo radar images show no signs of ice in permanently shadowed areas at the moon's poles. Researchers believe rough surfaces from impact craters may be responsible for observed reflections instead.
A recent study by Ohio State University researchers presents compelling evidence of global warming in the tropics and subtropics, with melting ice caps and rising temperatures in alpine regions. The findings suggest that these areas will face significant challenges due to water stress and population growth.
Astronomers studied comet Hale-Bopp with the Hubble Space Telescope, finding that its nucleus may be more complex than previously thought. The findings suggest that components like carbon disulfide ice are not contained within water, but rather in separate regions of the nucleus.
Researchers at the University of Washington have discovered a correlation between lightning frequency and rainfall, which could lead to a new method for tracking precipitation in remote regions. The connection is thought to be due to ice particles that transfer electric charge when colliding in clouds.
Researchers highlight the ongoing threat of ice on small plane wings, which can compromise control and safety. Despite a redesigned deicing 'boot', other aircraft and severe icing conditions remain a concern.
Researchers at the University of Illinois have invented a faucet that drips automatically to relieve pressure and prevent pipe bursts. The design is centered on southern states where subfreezing temperatures are rare, and construction lacks attention to protecting pipes from outside temperatures.
Researchers analyzed ancient methane levels in ice cores, revealing patterns of climate change over the past 110,000 years. The study confirms high methane levels during warm periods and suggests a link between global warming and changes in terrestrial climate.