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May 25, 2024

Smelting Steel With Sunlight: New Solar Trap Tech Could Help Decarbonize Industrial Heat

Posted by in category: climatology

Some of the hardest sectors to decarbonize are industries that require high temperatures like steel smelting and cement production. A new approach uses a synthetic quartz solar trap to generate temperatures of over 1,000 degrees Celsius (1,832 degrees Fahrenheit)—hot enough for a host of carbon-intensive industries.

While most of the focus on the climate fight has been on cleaning up the electric grid and transportation, a surprisingly large amount of fossil fuel usage goes into industrial heat. As much as 25 percent of global energy consumption goes towards manufacturing glass, steel, and cement.

Electrifying these processes is challenging because it’s difficult to reach the high temperatures required. Solar receivers, which use thousands of sun-tracking mirrors to concentrate energy from the sun, have shown promise as they can hit temperatures of 3,000 C. But they’re very inefficient when processes require temperatures over 1,000 C because much of the energy is radiated back out.

May 25, 2024

Brain-inspired chip integrates trainable neurons for ultra-efficient computing

Posted by in categories: computing, neuroscience

Researchers create fully memristive neuromorphic chip integrating trainable dendritic neurons and high-density RRAM, enabling energy-efficient brain-inspired computing architectures.

May 25, 2024

3D printed conducting polymer hydrogels enable advanced implantable bioelectronics

Posted by in categories: biotech/medical, materials

Researchers have developed 3D printable conducting polymer hydrogels for implantable bioelectronics, enabling long-term electrophysiological monitoring and modulation of organs.

May 25, 2024

Printed organic transistors achieve record performance and 3D circuit density

Posted by in category: computing

Researchers printed high-performance organic transistor arrays and logic circuits with an amorphous polymer semiconductor, achieving 100% yield, excellent uniformity, and the highest reported density of 100 printed transistors per square centimeter.

May 25, 2024

Quantum neuroelectronic devices emulate brain synapses, show potential to mitigate cognitive decline

Posted by in categories: neuroscience, quantum physics

Innovative quantum neuroelectronic devices mimic key functions of brain synapses, demonstrating promise for reducing effects of age-related cognitive decline.

May 25, 2024

Room-temperature method transforms liquid crystal ‘fabric’ into soft robotic actuators

Posted by in category: robotics/AI

New method turns liquid crystal elastomers into soft robotic actuators at room temperature, enabling easier customization and mass production.

May 25, 2024

More than spins: Exploring uncharted territory in quantum devices

Posted by in categories: computing, particle physics, quantum physics

Many of today’s quantum devices rely on collections of qubits, also called spins. These quantum bits have only two energy levels, the ‘0’ and the ‘1’. However, unlike classical bits, qubits can exist in superpositions, meaning they can simultaneously be in a combination of the ‘0’ and ‘1’ states. Spins in real devices also interact with light and vibrations known as bosons, greatly complicating calculations.

In a new publication in Physical Review Letters (“Fast quantum state preparation and bath dynamics using non-Gaussian variational Ansatz and quantum optimal control”), researchers in Amsterdam demonstrate a way to describe spin-boson systems and use this to efficiently configure quantum devices in a desired state.

Quantum devices use the quirky behaviour of quantum particles to perform tasks that go beyond what ‘classical’ machines can do, including quantum computing, simulation, quantum sensing, quantum communication and quantum metrology. These devices can take many forms, such as a collection of superconducting circuits, or a lattice of atoms or ions held in place by lasers or electric fields.

May 25, 2024

How a tiny device could lead to big physics discoveries and better lasers

Posted by in categories: biotech/medical, nanotechnology, quantum physics

Researchers at Rensselaer Polytechnic Institute have fabricated a device no wider than a human hair that will help physicists investigate the fundamental nature of matter and light. Their findings, published in the journal Nature Nanotechnology (“Topological valley Hall polariton condensation”), could also support the development of more efficient lasers, which are used in fields ranging from medicine to manufacturing.

The device is made of a special kind of material called a photonic topological insulator. A photonic topological insulator can guide photons, the wave-like particles that make up light, to interfaces specifically designed within the material while also preventing these particles from scattering through the material itself.

Because of this property, topological insulators can make many photons coherently act like one photon. The devices can also be used as topological “quantum simulators,” miniature laboratories where researchers can study quantum phenomenon, the physical laws that govern matter at very small scales.

May 25, 2024

Alex Rosenberg | Intentionality, Evolution

Posted by in categories: biological, evolution, neuroscience

Alex Rosenberg is the R. Taylor Cole Professor of Philosophy at Duke University. His research focuses on the philosophy of biology and science more generally, mind, and economics.

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May 25, 2024

Quora: Quora is a place to gain and share knowledge

Posted by in category: futurism

It’s a platform to ask questions and connect with people who contribute unique insights and quality answers. This empowers people to learn from each other and to better understand the world.

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