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Heat

In physics, heat is a form of energy associated with the motion of atoms, molecules and other particles which comprise matter; generally defined as energy in motion.

Note: The above text is excerpted from the Wikipedia article "Heat", which has been released under the GNU Free Documentation License.

For more information, see the following related content on ScienceDaily:

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Getting Warmer: Improving Heat Flux Modeling

Mar. 24, 2022 — Researchers used molecular dynamics simulations to model heat transport at atomic scales. This allowed the three-dimensional structure responsible for the heat flux to be visualized. The work may ...

The Quantum Refrigerator

July 29, 2021 — By combining quantum theory and thermodynamics, it is possible to design a new kind of atomic refrigerator, which can cool down extremely cold Bose-Einstein-condensates even ...

Motorized Droplets Thanks to Feedback Effects

Oct. 19, 2021 — Physicists have examined a special system of colloidal particles that they activated using laser light. The researchers discovered that self-propelling droplets, which they have named ...

Quantum Heat Pump: A New Measuring Tool for Physicists

Aug. 26, 2022 — Physicists have built a quantum scale heat pump made from particles of light. This device brings scientists closer to the quantum limit of measuring radio frequency signals, useful in for example the ...

Two, Six, Many: Emergence of Collective Behavior

Dec. 11, 2020 — Phase transitions describe dramatic changes in properties of a macroscopic system - like the transition from a liquid to a gas. Starting from individual ultracold atoms, physicists were able to ...

Chaos Gives the Quantum World a Temperature

Dec. 14, 2022 — Two seemingly different areas of physics are related in subtle ways: Quantum theory and thermodynamics. How can the laws of thermodynamics arise from the laws of quantum physics? This question has ...

Putting a New Theory of Many-Particle Quantum Systems to the Test

Sep. 2, 2021 — New experiments using trapped one-dimensional gases -- atoms cooled to the coldest temperatures in the universe and confined so that they can only move in a line -- fit with the predictions of the ...

A Motion Freezer for Many Particles

Feb. 28, 2023 — From the way that particles scatter light, it is possible to calculate a special light field that can slow these particles down. This is a new and powerful method to cool particles down to extremely ...

Twin Atoms: A Source for Entangled Particles

Feb. 24, 2021 — One of the most important phenomena in quantum physics is entanglement - used for quantum krypography, quantum computers and many other applications. While it is easy to create pairs of entangled ...

Researchers Discover a New Inorganic Material With Lowest Thermal Conductivity Ever Reported

July 15, 2021 — A collaborative research team has discovered a new inorganic material with the lowest thermal conductivity ever reported. This discovery paves the way for the development of new thermoelectric ...

Matter & Energy News

December 9, 2023

Ancient Stars Made Extraordinarily Heavy Elements

Dec. 7, 2023 — How heavy can an element be? An international team of researchers has found that ancient stars were capable of producing elements with atomic masses greater than 260, heavier than any element on the periodic table found naturally on Earth. The ...

Printed Robots With Bones, Ligaments, and Tendons

Nov. 15, 2023 — For the first time, researchers have succeeded in printing a robotic hand with bones, ligaments and tendons made of different polymers using a new laser scanning technique. The new technology makes it possible to 3D print special plastics with ...

'Cooling Glass' Blasts Building Heat Into Space

Nov. 13, 2023 — Researchers aiming to combat rising global temperatures have developed a new 'cooling glass' that can turn down the heat indoors without electricity by drawing on the cold depths of space. The new technology, a microporous glass coating, can lower ...

Photonics Team Develops High-Performance Ultrafast Lasers That Fit on a Fingertip

Nov. 9, 2023 — Scientists demonstrate a novel approach for creating high-performance ultrafast lasers on nanophotonic chips. The new advance will enable pocket-sized devices that can perform detailed GPS-free ...

Latest Headlines

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Conjoined 'Racetracks' Make New Optical Device Possible

Dec. 8, 2023 — Kerry Vahala and collaborators from UC Santa Barbara have found a unique solution to an optics ...

Hybrid Device Significantly Improves Existing, Ubiquitous Laser Technology

Dec. 8, 2023 — Researchers have developed a chip-scale laser source that enhances the performance of semiconductor lasers while enabling the generation of shorter wavelengths. This pioneering work represents a ...

Engineers Design a Robotic Replica of the Heart's Right Chamber

Dec. 8, 2023 — Engineers developed a robotic replica of the heart's right ventricle, which mimics the beating and blood-pumping action of live hearts. The device could be used for studying right ventricle disorders ...

A Fork in the 'Rhod': Researchers Unveil Comprehensive Collection of Rhodamine-Based Fluorescent Dyes

Dec. 8, 2023 — After more than a decade of developing fluorescent probes, a research team has now released the culmination of their years of work: A comprehensive ...

Veins of Bacteria Could Form a Self-Healing System for Concrete Infrastructure

Dec. 8, 2023 — In hopes of producing concrete structures that can repair their cracks, researchers are putting a new twist on an old trick for improving the ...

Immersive VR Goggles for Mice Unlock New Potential for Brain Science

Dec. 8, 2023 — New miniature virtual reality (VR) goggles provide more immersive experiences for mice living in laboratory settings. By more faithfully simulating natural environments, the researchers can more ...

Revealing the Landscape of Software as a Medical Device Industry

Dec. 7, 2023 — There has been a surge in academic and business interest in software as a medical device (SaMD). It enables medical professionals to streamline existing medical practices and make innovative medical ...

Using Machine Learning to Monitor Driver 'Workload' Could Help Improve Road Safety

Dec. 7, 2023 — Researchers have developed an adaptable algorithm that could improve road safety by predicting when drivers are able to safely interact with ...

Magnetization by Laser Pulse

Dec. 7, 2023 — To magnetize an iron nail, one simply has to stroke its surface several times with a bar magnet. Yet, there is a much more unusual method: A team has discovered some time ago that a certain iron ...

Polaritons Open Up a New Lane on the Semiconductor Highway

Dec. 7, 2023 — On the highway of heat transfer, thermal energy is moved by way of quantum particles called phonons. But at the nanoscale of today's most cutting-edge semiconductors, those phonons don't remove ...