Articles tagged with Evaporation
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Researchers create two novel devices that harness the power of evaporation to generate electricity and propel self-sustaining devices. The floating piston-driven engine generates enough electricity to cause a light to flash, while the rotary engine drives a miniature car.
Stanford researchers found that droplets of two-component fluid can sense each other and move like living cells due to balance between surface energy and evaporation. The dynamic interactions enable these inanimate droplets to mimic some behaviors of living cells.
Researchers at Georgia Institute of Technology found that animals and humans have similar lash lengths, which control airflow around the eye. The ideal ratio is one-third the eye width, reducing dust and increasing moisture retention.
Researchers studied the basic motion of tear film traversing the eye to develop a potential cure for dry eye. The simulation found that blinking is necessary to stop the thinning of the tear film, and flooding the eye with liquid does not relieve the issue.
A new study predicts that 12% of land will experience drought by 2100 due to rainfall changes alone, but this number increases to 30% with consideration of evaporative drying. The warming climate may lead to food-price shocks and water scarcity in regions like the US, China, and Africa.
Researchers at Harvard's Wyss Institute have developed a new humidity-driven generator using bacterial spores, which can generate 1000 times more force than human muscle. The prototype captures just a small percentage of the energy released by evaporation, but could provide a new source of renewable energy if scaled up.
A new study by the Great Lakes Integrated Sciences and Assessments Center reveals that Great Lakes evaporation is not as simple as previously thought. Evaporation rates in the fall can nearly offset water-level gains from winter ice cover, complicating efforts to forecast Great Lakes water levels.
Researchers from Polish Academy of Sciences discovered a new mechanism driving droplet evaporation, which plays crucial role in process at nanoscale. Temperature of evaporating liquid is prime factor responsible for evaporation.
Researchers found that elephants increase their skin's permeability during hot summer months and rely on evaporation of sweat to cool down. The study suggests that climate plays a significant role in an elephant's water dependence, with different species requiring varying amounts of water for cooling.
Researchers at Columbia University developed a method to map evaporation globally using weather stations, enabling scientists to evaluate water resource management and assess recent trends. The technique uses air temperature and humidity measurements to obtain daily evaporation rates.
A new study projects a 10 percent decline in the Colorado River's flow by 2040, posing significant challenges for water management in the US Southwest. Climate modelers predict increased evaporation and drying conditions across three key regions, including California, Nevada, and Texas.
Cyclone Evan weakened from Cyclone strength to Tropical Storm strength over a 36-hour period, according to NASA's infrared images. The storm showed changes in intense thunderstorms, with cloud top temperatures warming and evaporation decreasing due to wind shear and cooler sea surface temperatures.
Researchers discovered that evaporated water from trees and lakes helps cool the entire atmosphere, not just locally, through increased cloud formation and reflection of solar radiation. This process has significant implications for land-use decision-making and mitigating global warming.
Tropical Storm Muifa strengthened in the western North Pacific Ocean on July 28, with highest thunderstorms located on its eastern and southern sides. A nearby high-pressure area is preventing evaporation in the storm's northern quadrant, weakening its convection.
Research by Ruud van der Ent shows that evaporation from the Amazon forest is responsible for 50% of rainfall in Peru and other surrounding countries. Land use changes such as irrigation, dams, and deforestation can alter evaporation patterns, affecting water resources in distant regions.
Researchers from Columbia University found that evaporation from the land surface can modify the frequency of summertime rainfall, but not its quantity. This discovery is crucial for understanding prolongation of hydrological extremes like floods and droughts.
Researchers have re-examined the assumption that organic molecules in the air evaporate quickly, discovering that they actually evaporate much slower than expected. This finding could significantly impact climate and air quality models, suggesting that there may be no missing source of atmospheric organics.
Engineers at the University of Edinburgh have developed a forecasting method to predict damage caused by weather to historic and modern masonry buildings. This allows conservationists to estimate the impact of long-term climate change on stonework and brickwork, determining the most suitable preservation plan.
Researchers have discovered changes in lake levels on Titan, with the southern hemisphere experiencing a 1-meter-per-year drop in lake depth. The decrease is attributed to seasonal evaporation of liquid methane from lakes, which are composed mainly of this substance.
Researchers found the microscopic minimal threshold of coffee-ring formation, enabling standard setting for biosensor devices. This discovery guides the development of ultra-small biosensors that can perform multiple medical diagnostics on a single chip.
A Purdue University study found that ground moisture at landfall is a major indicator of tropical storm behavior. Storms are more likely to sustain and cause heavy rains when the ground is wet, while dry conditions tend to calm them down.
Researchers used NASA's Aura satellite to track the origin and movements of water vapor in the atmosphere. They found that tropical rainfall evaporation and water
Two studies show that land surface evaporation increased during the second half of the 20th century. Researchers also found a more stable geomagnetic field with greater symmetry, while a third study analyzed the October 2005 Pakistan earthquake and found shallow slip with structural control.
Researchers discovered that releasing reservoir water to recharge natural aquifers can help cities survive droughts with full production from municipal wells. This technique may become crucial for areas experiencing reduced inflow due to changing water uses or climate change, such as the city of Las Vegas, NM, and parts of California.
Researchers use stable isotopes in epiphytes to measure changes in photosynthesis and water evaporation, providing indicators of climate change. The findings suggest that these plants could be used as bioindicators of climate change in tropical regions.
Steve Granick and Zhiqun Lin found that patterns of high fidelity form spontaneously through evaporation of a droplet in a cylindrical mount. The process results in concentric rings with regular spacing, controlled by the material's size and surface properties.
A new study reports significant changes in ocean salinity levels, with tropical waters becoming saltier and polar regions fresher. These shifts suggest an acceleration of the Earth's water cycle, potentially exacerbating global warming and disrupting ocean circulation.
Researchers found dramatic erosion of frosty layers on Mars' south pole, suggesting global climate change. The Martian snow is dense and ice-like, and its seasonal cycle affects the planet's long-term climate and atmosphere.
Researchers have found that decreasing pan evaporation does not necessarily mean less evaporation in surrounding landscapes. By considering regional land-surface moisture, environmental engineers explain how evaporation figures can drop due to saturated terrain, resolving the paradox.