Heat rectification via suspended asymmetric graphene nanomesh
It is one of the humans' desired goals that we want to precisely control the heat transport as the level as that we can control the electrical current. However, a high-performance thermal rectifier or thermal diode is still missing. Currently, resear.....»»
Indian desert school"s unique design offers respite from heat
In the sweltering heat of India's Thar desert, where summer highs soar above 50 degrees Celsius, an architecturally striking school is an oasis of cool thanks to a combination of age-old techniques and modern design......»»
Mosquitoes sense infrared from body heat to help track humans down, study shows
While a mosquito bite is often no more than a temporary bother, in many parts of the world it can be scary. One mosquito species, Aedes aegypti, spreads the viruses that cause over 100,000,000 cases of dengue, yellow fever, Zika and other diseases ev.....»»
World"s first micromachine twists 2D materials at will
Just a few years ago, researchers discovered that changing the angle between two layers of graphene, an atom-thick sheet of carbon, also changed the material's electronic and optical properties. They then learned that a "twist" of 1.1 degrees—dubbe.....»»
NASA wants clarity on Orion heat shield issue before stacking Artemis II rocket
"We have still a lot of work to do to close out the heat shield investigation." Enlarge / The Orion spacecraft for the Artemis II mission, comprising its crew and service modules, was lifted into a vacuum test chamber at NASA's K.....»»
Modeling study suggests heat-related deaths in Europe could triple by century"s end under current climate policies
Deaths from heat could triple in Europe by 2100 under current climate policies, mostly among people living in southern parts of the continent, according to a study published in The Lancet Public Health journal......»»
Study tracks decades of extreme heat, cold in Upper Midwest
Researchers analyzed meteorological data from nine Upper Midwest states from 1979–2021, tracking trends in extreme heat and cold over every 4-kilometer square of that territory. They found striking regional differences in the extremes. Many parts o.....»»
The underrated impact of humidity in predicting heat-related deaths
Governments, medical institutions and other bodies require accurate models on health-related matters in order to better organize their activities......»»
Quenching the intense heat of a fusion plasma may require a well-placed liquid metal evaporator
Inside the next generation of fusion vessels known as spherical tokamaks, scientists at the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) envisioned a hot region with flowing liquid metal that is reminiscent of a subterranean.....»»
Chalk-based coating creates a cooling fabric
In the scorching heat of summer, anyone who spends time outside—athletes, landscapers, kids at the park or beachgoers—could benefit from a cooling fabric. While there are some textiles that reflect the sun's rays or transfer heat away from the bo.....»»
Ancient civilizations had ways to counter the urban heat island effect—how history"s lessons apply to cities today
As intense heat breaks records around the world, a little-reported fact offers some hope for cooling down cities: Under even the most intense periods of extreme heat, some city blocks never experience heat wave temperatures......»»
Novel ratchet mechanism uses a geometrically symmetric gear driven by asymmetric surface wettability
The ratchet mechanism is a fascinating energy-conversion system that converts disorderly or random motion into orderly, directed movement through a process known as spontaneous rectification. It is a critical component of mechanical systems, typicall.....»»
The Run of Record-Breaking Heat Has Ended, for Now
Air temperatures in July 2024 were fractionally cooler than in July 2023, probably because of a waning El Niño. But don’t expect things to be much cooler in coming years......»»
During a heat wave, temperatures not the only threat: expert
Spain has just emerged from a 21-day heat wave that engulfed Madrid, Barcelona and Zaragoza, posing a health threat which extends far beyond the actual temperature, according to Julio Diaz, a researcher at Madrid's Carlos III Health Institute......»»
Seoul residents sweating with record "tropical nights" weather
Residents of South Korea's capital are resorting to novel ways to beat the heat as a century-old weather record fell Friday following a 26th "tropical night" in a row—when the temperature stays above 25 degrees Celsius (77 Fahrenheit)......»»
Extreme heat exposure on the rise for millions of kids: UN
Nearly half a billion children are facing twice as many days of extreme heat each year—or more—than their grandparents did, the UN said Tuesday, warning of deadly consequences......»»
Mediterranean Sea temperatures match 2023 records
The temperatures of the Mediterranean Sea in recent days have reached heat records set last summer, the main Spanish maritime research center told AFP Tuesday, with marine heat waves in some places exceeding 30 degrees Celsius......»»
Antarctica winter experiences prolonged heat wave
Antarctica, the world's coldest continent, is experiencing an exceptionally long heat wave during its winter, according to Britain's national polar research institute......»»
Study reveals urban trees suffer more from heat waves and drought than their rural counterparts
A recently published study in Ecological Applications details how trees in New York City and Boston are more negatively impacted by heat waves and drought than trees of the same species in nearby rural forests. The finding, made by researchers at the.....»»
Study finds protein reduces toxicity of graphene oxide for drug delivery
A new study has discovered ways to reduce the toxicity of graphene oxide (GO), an ultra-thin sheet of nanomaterial derived from graphite, laying the groundwork to use it as a drug delivery system......»»
Rapid removal of emerging endocrine disruptors in wastewater using high-performance single-atom catalysts
Bisphenols are widely used as the main raw material for plastics such as receipts, water bottles, water containers, and vinyl due to their heat-resistant and mechanochemical properties. Among bisphenols, bisphenol A (BPA), which we often refer to as.....»»