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Categories: Chemistry: Thermodynamics
Published Absolute zero in the quantum computer (via sciencedaily.com) Original source
Absolute zero cannot be reached -- unless you have an infinite amount of energy or an infinite amount of time. Scientists in Vienna (Austria) studying the connection between thermodynamics and quantum physics have now found out that there is a third option: Infinite complexity. It turns out that reaching absolute zero is in a way equivalent to perfectly erasing information in a quantum computer, for which an infinetly complex quantum computer would be required.
Published Thermal paint: MXene spray coating can harness infrared radiation for heating or cooling (via sciencedaily.com) Original source
An international team of researchers has found that a thin coating of MXene -- a type of two-dimensional nanomaterial -- could enhance a material's ability to trap or shed heat. The discovery, which is tied to MXene's ability to regulate the passage of ambient infrared radiation, could lead to advances in thermal clothing, heating elements and new materials for radiative heating and cooling.
Published Colorful films could help buildings, cars keep their cool (via sciencedaily.com)
The cold blast of an air conditioner can be a relief as temperatures soar, but 'A/C' units require large amounts of energy and can leak greenhouse gases. Today, scientists report an eco-friendly alternative -- a plant-based film that cools when exposed to sunlight and comes in many textures and bright, iridescent colors. The material could someday keep buildings, cars and other structures cool without requiring power.
Published Surprise effect: Methane cools even as it heats (via sciencedaily.com)
Most climate models do not yet account for a recent discovery: methane traps a great deal of heat in Earth's atmosphere, but also creates cooling clouds that offset 30% of the heat.
Published What really matters in multi-story building design? (via sciencedaily.com)
The impact of multi-story building design considerations on embodied carbon emissions, cost, and operational energy has been revealed.
Published Robot caterpillar demonstrates new approach to locomotion for soft robotics (via sciencedaily.com)
Researchers have demonstrated a caterpillar-like soft robot that can move forward, backward and dip under narrow spaces. The caterpillar-bot's movement is driven by a novel pattern of silver nanowires that use heat to control the way the robot bends, allowing users to steer the robot in either direction.
Published Molecular teamwork makes the organic dream work (via sciencedaily.com)
Molecular engineers have triggered a domino-like structural transition in an organic semiconductor. The energy- and time-saving phenomenon may enhance the performance of smartwatches, solar cells, and other organic electronics.
Published Bushfire safe rooms may save lives (via sciencedaily.com)
Researchers have built and tested a bushfire safe room that exceeds current Australian standards and could keep people alive or protect valuables when evacuation is no longer an option.
Published Activity deep in Earth affects the global magnetic field (via sciencedaily.com)
Compass readings that do not show the direction of true north and interference with the operations of satellites are a few of the problems caused by peculiarities of the Earth's magnetic field. The magnetic field radiates around the world and far into space, but it is set by processes that happen deep within the Earth's core, where temperatures exceed 5,000-degrees C. New research from geophysicists suggests that the way this super-hot core is cooled is key to understanding the causes of the peculiarities -- or anomalies, as scientists call them -- of the Earth's magnetic field.
Published Game-changing high-performance semiconductor material could help slash heat emissions (via sciencedaily.com)
Researchers have engineered a material with the potential to dramatically cut the amount of heat power plants release into the atmosphere.
Published Thermal conductivity of metal organic frameworks (via sciencedaily.com)
Metal organic frameworks, or MOFs, are kind of like plastic building block toys. The pieces are simple to connect, yet they're capable of building highly sophisticated structures.
Published New 'camera' with shutter speed of 1 trillionth of a second sees through dynamic disorder of atoms (via sciencedaily.com)
Researchers have developed a new 'camera' that sees the local disorder in materials. Its key feature is a variable shutter speed: because the disordered atomic clusters are moving, when the team used a slow shutter, the dynamic disorder blurred out, but when they used a fast shutter, they could see it. The method uses neutrons to measure atomic positions with a shutter speed of around one picosecond, a trillion times faster than normal camera shutters.
Published Researchers propose a simple, inexpensive approach to fabricating carbon nanotube wiring on plastic films (via sciencedaily.com)
Researchers have developed an inexpensive method for fabricating multi-walled carbon nanotubes (MWNTs) on a plastic film. The proposed method is simple, can be applied under ambient conditions, reuses MWNTs, and produces flexible wires of tunable resistances without requiring additional steps. It eliminates several drawbacks of current fabrication methods, making it useful for large-scale manufacturing of carbon wiring for flexible all-carbon devices.
Published New method creates material that could create the next generation of solar cells (via sciencedaily.com)
Perovskites, a family of materials with unique electric properties, show promise for use in a variety fields, including next-generation solar cells. A team of scientists has now created a new process to fabricate large perovskite devices that is more cost- and time-effective than previously possible and that they said may accelerate future materials discovery.
Published Neutrons reveal key to extraordinary heat transport (via sciencedaily.com)
Warming a crystal of the mineral fresnoite, scientists discovered that excitations called phasons carried heat three times farther and faster than phonons, the excitations that usually carry heat through a material.
Published Physicists give the first law of thermodynamics a makeover (via sciencedaily.com)
Physicists at West Virginia University have made a breakthrough on an age-old limitation of the first law of thermodynamics.
Published Study offers details on using electric fields to tune thermal properties of ferroelectric materials (via sciencedaily.com)
New research sheds light on how electric fields can be used to alter the thermal properties of ferroelectric materials, allowing engineers to manipulate the flow of heat through the materials. Ferroelectric materials are used in a wide variety of applications, from ultrasound devices to memory storage technologies.
Published Reactive fabrics respond to changes in temperature (via sciencedaily.com)
New textiles change shape when they heat up, giving designers a wide range of new options. In addition to offering adjustable aesthetics, responsive smart fabrics could also help monitor people’s health, improve thermal insulation, and provide new tools for managing room acoustics and interior design.
Published Solid-state thermal transistor demonstrated (via sciencedaily.com)
An effective, stable solid-state electrochemical transistor has been developed, heralding a new era in thermal management technology.
Published Proposed quantum device may succinctly realize emergent particles such as the Fibonacci anyon (via sciencedaily.com)
Tenacity has taken a roadblock and turned it into a possible route to the development of quantum computing.