Most Americans can expect wetter winters in the future due to global warming, according to a new study led by a University of Illinois Chicago scientist.
Earth Sciences
12 hours ago
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107
A new study conducted by a team of researchers from Arizona State University, University of Washington and the University of Texas at Austin reveals that extreme heat significantly alters how people go about their daily lives, ...
Environment
13 hours ago
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4
A new study examined how extreme temperatures in the United States significantly affect mortality among different racial groups and found that both cold and hot days increase mortality rates, with the latter disproportionately ...
Environment
Sep 25, 2024
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Scientists at Manaaki Whenua—Landcare Research have worked closely with researchers from NIWA, AgResearch and Plant & Food Research to model the likely risks of a warming climate across different agricultural sectors in ...
Ecology
Sep 25, 2024
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36
Coral reefs will continue to experience severe heat stress as rising temperatures cause the oceans to become unbearably hot—but a new study shows that altering their feeding habits could allow local populations to avoid ...
Ecology
Sep 24, 2024
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42
As electronic devices become increasingly miniaturized, heat management at the nanoscale emerges as a challenge, especially for devices operating in sub-microns. Traditional heat conduction models fail to capture the complex ...
Nanophysics
Sep 23, 2024
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53
Earth's average global temperatures have been steadily increasing since the Industrial Revolution. According to the National Oceanic and Atmospheric Agency (NOAA), Earth has been heating up at a rate of 0.06°C (0.11°F) ...
Astrobiology
Sep 23, 2024
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30
New research out of Southern Cross University has found previously undocumented variation in coral heat tolerance on Australia's Great Barrier Reef, giving hope that corals' own genetic resources may hold the key for us to ...
Evolution
Sep 23, 2024
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45
As one of the largest heat reservoirs in the climate system, the global ocean absorbs more than 90% of the excess energy from ongoing anthropogenic warming. In the last century, the greatest warming in the ocean has occurred ...
Earth Sciences
Sep 20, 2024
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52
As temperatures continue to soar across the country, a simple yet innovative technique could be the key to keeping dogs safe from heat-related illnesses.
Veterinary medicine
Sep 20, 2024
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37
In physics and thermodynamics, heat is the process of energy transfer from one body or system to another due to a difference in temperature. In thermodynamics, the quantity TdS is used as a representative measure of the (inexact) heat differential δQ, which is the absolute temperature of an object multiplied by the differential quantity of a system's entropy measured at the boundary of the object.
A related term is thermal energy, loosely defined as the energy of a body that increases with its temperature. Heat is also loosely referred to as thermal energy, although many definitions require this thermal energy to actually be in the process of movement between one body and another to be technically called heat (otherwise, many sources prefer to continue to refer to the static quantity as "thermal energy"). Heat is also known as "Energy".
Energy transfer by heat can occur between objects by radiation, conduction and convection. Temperature is used as a measure of the internal energy or enthalpy, that is the level of elementary motion giving rise to heat transfer. Energy can only be transferred by heat between objects - or areas within an object - with different temperatures (as given by the zeroth law of thermodynamics). This transfer happens spontaneously only in the direction of the colder body (as per the second law of thermodynamics). The transfer of energy by heat from one object to another object with an equal or higher temperature can happen only with the aid of a heat pump, which does work.
This text uses material from Wikipedia, licensed under CC BY-SA
