Articles tagged with Temperature Measurement
Physicists at NIST developed a method to calibrate temperature measurements using nanomechanical systems governed by quantum mechanics. The approach observes object vibrations and subtle zero-point motion, enabling precise thermal energy determination.
Tropical Storm 11P has developed with powerful storms and cold cloud top temperatures, indicating potential for heavy rain. The storm is forecast to reach hurricane strength on Feb. 12 before weakening.
Researchers have developed a flexible sensor system that measures metabolites and electrolytes in sweat, allowing for continuous non-invasive health monitoring. The device syncs data with smartphones and can alert users to health problems such as fatigue, dehydration, and high body temperatures.
The research team successfully cooled electrons to 3.7 millikelvin in a nanoelectronic device, breaking the previous record of 4 millikelvin. This breakthrough enables the development of new quantum technologies, including quantum computers and sensors, which require extremely low temperatures.
Researchers at KIT have developed a method to estimate groundwater temperature from surface temperatures and building densities measured by satellites, revealing that 95% of areas studied had higher groundwater temperatures than surface temperatures. This discovery opens up new possibilities for sustainable energy production in cities.
A study of 235 lakes across six continents found that they are warming at an average rate of 0.61 degrees Fahrenheit per decade, outpacing ocean and atmospheric warming rates. This rapid warming can lead to increased algal blooms, reduced oxygen levels, and changes in aquatic life.
Researchers measured thermal expansion of ceramics and silicon in a precise temperature range, revealing significant deviations from reference values. The results are crucial for future space missions like JWST and SPICA.
A systematic evidence review and meta-analysis found that peripheral thermometers have poor clinical accuracy and sensitivity compared to central thermometers. Central thermometers, such as rectal or bladder thermometers, are considered the gold standard for accurate temperature measurement.
A University of Tokyo research group has developed a flexible, lightweight temperature sensor that responds rapidly to tiny thermal changes. The sensor is composed of graphite and a semicrystalline acrylate polymer and can measure body temperature with high accuracy without additional circuitry.
A team of Australian scientists developed a precision laser device to measure temperature with high accuracy. The breakthrough enables any laboratory worldwide to accurately measure temperature, bringing a universally agreed temperature scale to the globe.
Researchers at Harvard University discovered that termite mounds breathe once a day as temperature oscillations drive ventilation. The mounds' structure, with central chimneys and thin exterior walls, allows gases to exchange and maintain efficient airflow.
NASA's Aqua satellite captured infrared data on Tropical Storm Danny, revealing cloud top temperatures near -63F/-52C and sea surface temperatures over 300 kelvin. The storm is expected to strengthen and potentially become a hurricane by August 23, with maximum sustained winds reaching 105 mph.
Tropical Storm Molave was observed by NASA's Suomi NPP satellite on August 13, 2015, with a distinctive fan shape and strong winds near 40 knots. The storm was moving east-northeast at 15 knots and forecasters expect it to continue in that direction.
The Suomi NPP satellite captured a visible image of Tropical Storm Molave, revealing strong winds and clouds southeast of the storm's center. The satellite data showed that the strongest winds were in this quadrant, with forecasters predicting intensification over warm sea surface temperatures.
Researchers at UC Berkeley cooled a gas to record-low entropy and temperature, allowing them to model high-temperature superconductors. This achievement could lead to the discovery of new materials with superconducting properties without requiring cooling.
Researchers have created a nanothermometer capable of measuring temperature fluctuations in cells, achieving unprecedented precision. By combining thermodynamic tools with quantum metrology, they established the smallest possible fluctuation in temperature that can be measured.
Researchers developed the smallest and most accurate thermometer that can detect tiny fluctuations in microscopic regions, enabling applications in various fields. The study provides a full characterization of temperature estimators with maximum accuracy, shedding light on their margin of error.
NASA's Aqua satellite captured images of Hurricane Blanca on June 3 and 4, showing a decrease in organization and cloud top temperatures as cold as -81.6F. The storm's bands of thunderstorms became fragmented, and its pinhole eye disappeared from the image.
An international study analyzing over 74 million deaths in 384 locations across 13 countries found that cold weather was responsible for the majority of temperature-related deaths, with most caused by moderately cold temperatures. Deaths due to non-optimal temperatures accounted for around 7.71% of all deaths.
Tropical Cyclone Ikola's winds decreased to 35 knots after being affected by strong northwesterly vertical wind shear. The storm's dissipation was predicted by the Joint Typhoon Warning Center, with its maximum sustained winds weakening rapidly.
A new thermal imaging technique called plasmon energy expansion thermometry (PEET) allows for precise temperature mapping in tiny electronic circuits. This can help engineers design microprocessors that minimize overheating and improve device performance.
Scientists at USC and UCLA have discovered a way to accurately measure temperatures inside microelectronic devices using a novel technique called Plasmon Energy Expansion Thermometry (PEET). This breakthrough enables better thermal management, leading to faster transistors and lower power consumption.
Scientists report early measurements of comet 67P/Churyumov-Gerasimenko's subsurface temperature and gas production from the European Space Agency's Rosetta Mission. The team used NASA's Microwave Instrument on the Rosetta Orbiter to study heat transport, outgassing, and coma development.
The system measures temperature of mechanical or cutting processes without access to conventional techniques, using a fiber optic pyrometer. It determines temperature by radiation measurement and can withstand high temperatures, enabling analysis of tool wear and optimization of productivity.
The study reveals that 2014 was the warmest year globally since 1880, with a temperature increase of about 1.4 degrees Fahrenheit over the past century.
NASA's Suomi NPP satellite captured a ghostly-white image of Tropical Depression Nuri on October 31. The storm has high thunderstorms with cold cloud top temperatures and is expected to curve northwest before turning northeast over the next couple of days.
A new study from the University of British Columbia found that black Republicans have the most faith in the US government, even when party lines are factored in. This suggests a unique level of confidence in the political system among this group, despite being a minority within the Republican Party.
Researchers at UTSA's South Texas Center for Emerging Infectious Diseases have discovered a regulatory thermometer in Vibrio cholerae bacteria that controls the expression of virulence factors leading to cholera. The discovery could lead to new therapeutic strategies against this deadly disease.
Researchers found that water temperatures in the Florida Keys have increased by nearly 2 degrees Fahrenheit over the past few decades, stressing corals and causing more frequent bleaching events. The study indicates that August is the peak month for ocean temperatures, which can lead to coral mortality if prolonged.
A novel molecular system resembling a butterfly has been discovered, capable of measuring temperature, emitting white light, and converting photon energy to mechanical motions. The molecule's unique properties make it suitable for developing non-invasive thermometers and molecular machines that can harness sunlight.
University of Adelaide researchers have created the world's most precise thermometer, using light to measure temperature differences of 30 billionths of a degree in just one second. This breakthrough technology has the potential to revolutionize industrial and medical applications where trace amount detection is crucial.
Researchers at University of Exeter have developed a new method to accurately measure the surface temperature of nanoscale objects by analyzing their Brownian motion in air. This technique can determine different temperatures across the surface of tiny spheres, opening doors for studying nanotechnology and aerosol research.
Parts of ancient Antarctica reached temperatures similar to today's California coast and Florida heat due to high CO2 levels. The study used a new method to measure past temperatures, providing insights into the sensitivity of the climate system to greenhouse gases.
New NASA Van Allen Probes observations help scientists test and improve a model to forecast radiation environment changes in near-Earth space. By combining data from the Van Allen Probes with computer simulations, researchers can better predict how particles and energy affect the Earth's atmosphere.
Tropical Cyclone Faxai weakened as wind shear stretched it out, with maximum sustained winds dropping to 50 knots/57.5 mph. The storm was expected to become extra-tropical by the end of March 5 as it embedded into a westerly flow.
Research found a steep upward tendency in extreme hot days over land, despite a supposed 'hiatus' in global average temperatures. The study revealed regions experiencing 10-50 extremely hot days saw the greatest increases in hot events and affected area.
System 94S continues to develop over the Northern Territory of Australia, with strong central convection and spiral bands of thunderstorms pushed west by moderate to strong vertical wind shear. The Australian Government Bureau of Meteorology has issued a Severe Weather Warning for heavy rainfall and flash flooding in the affected areas.
Recent climate change affects physiological traits in caterpillars, enabling them to feed rapidly at a broader range of temperatures. Modern caterpillars can gain up to 20% body weight in an hour when temperatures are ideal, outperforming their ancestors.
Researchers found temperatures from -92 to -94 degrees Celsius (-134 to -137 Fahrenheit) in a 1,000-kilometer long swath on the highest section of the East Antarctic ice divide. The measurements were made using Landsat 8 and MODIS sensors.
An international team of scientists has measured the 'frictional heat' generated during the rupture of Japan's 9.0 Tohoku-Oki earthquake in 2011. The study found that the fault is more slippery than previously thought, with a friction coefficient of 0.08.
Researchers find remarkably low frictional heat produced by fault slip during magnitude 9.0 Tohoku-Oki earthquake, which triggered devastating tsunami. The low resistance to slip may explain the large amount of slip that occurred during the earthquake.
A new thermocouple developed by researchers at the University of Cambridge can reduce drift by up to 90% at temperatures above 1300 degrees Celsius, potentially doubling the lifespan of engine components. This could lead to significant cost savings for manufacturers and improved fuel efficiency.
Researchers used smartphone batteries to crowdsource weather information, estimating daily average temperatures for eight major cities with an accuracy of 1.5 degrees Celsius. This technique could lead to continuously updated weather predictions at a city block resolution, improving the accuracy and specificity of current weather forec...
NASA's Aqua satellite captured infrared data showing very cold cloud top temperatures of strong thunderstorms around Tropical Storm Mangkhut's center before landfall in northern Vietnam. The storm is expected to dissipate within 24 hours after making landfall about 65 miles south of Hanoi.
Researchers at EPFL discovered that Full Body Illusions can be accompanied by a decrease in skin temperature, which is highly significant but small. The study used 3D head-mounted displays and robotic devices to induce the illusion, leading to widespread brain activity changes.
Researchers at the UK's National Physical Laboratory have performed the most accurate measurement yet of the Boltzmann constant, which could revolutionize the way we define temperature. The new definition directly links the unit of temperature to the basic physical reality of atomic vibrations.
Researchers at University of Chicago develop a spintronics approach to manipulate the spin of atomic-scale defects in diamond for new quantum technologies. This approach enables new nanoscale sensors, including single-spin thermometers, with potential applications in temperature measurement and information processing.
A tropical low-pressure system, System 92E, is developing near southwestern Mexico and may become Tropical Storm Barbara by May 28. The National Hurricane Center expects the storm to consolidate and bring heavy rains to southern Mexico and western Central America.
Researchers found that Shigella uses a biological 'RNA thermometer' to monitor its environment and produce the necessary protein for survival. At body temperature, the thermometer melts away, allowing the bacterium to synthesize the ShuA protein needed for iron acquisition.
Researchers used fish temperature preferences as a 'thermometer' to assess climate change's impact on the world's oceans between 1970 and 2006. They found that warm-water species dominated global fisheries catches, while tropical regions experienced reduced marine species and catches.
A new geochemical method has found a link between the concentration of atmospheric carbon dioxide and Earth's surface temperature, suggesting that the planet is inextricably linked. The study uses a recently developed technique to measure the change in terrestrial temperature associated with a shift in global atmospheric CO2 concentrat...
Researchers found that despite voluntary temperature setting standards, hot water temperatures remained dangerously high in 41% of homes, posing a scald hazard to young children and the elderly. The study suggests equipping faucets with anti-scald devices as a potential solution.
Researchers used infrared sensors and thermal technology to evaluate irrigation strategies in peach orchards. They found that midday canopy-to-air temperature differences were significantly higher in water-stressed trees, indicating the potential for effective management of water use.
An international team discovered that the interaction between hot electrons and cool ions in graphite is significantly slower than previously thought, leading to a deeper understanding of planetary evolution and laser-driven fusion. The findings have wide implications for material processing, inertial confinement fusion, and astrophysi...
A new study finds that the tropical Indo-Pacific climate has shifted to a more El Niño-like state, leading to a slowdown of the Walker circulation. This change is driven by a gradual warming pattern in the region, which can impact global climate patterns and lead to extreme weather events.
A team of meteorologists has overturned the world's hottest temperature record from 90 years ago, revising it to 134 F (56.7 C) recorded in Death Valley, Calif., due to systematic errors in the original measurement. The investigation found that an inexperienced observer may have made the error with a obsolete thermometer.
The famous Galilean thermometer was actually invented by an early scientific society founded by Galileo
Researchers found that people agree more with claims when a photo is displayed, regardless of its accuracy. This phenomenon, known as 'truthiness,' has important implications for situations where people are influenced by visual cues.
Tropical Cyclone Khanun strengthened after passing over the Aqua satellite on July 15, 2012, with organized thunderstorms and low cloud top temperatures indicating potential for heavy rainfall.
Cloud top temperatures around Hurricane Emilia's eye were measured to be colder than -94F, indicating high-energy storms. NASA's Aqua and Terra satellites tracked the hurricane's rapid strengthening and weakening phases.