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Archive for the ‘materials’ category: Page 49

Jan 24, 2024

DARPA Partially Funded Quantum Space Drive Orbital Test

Posted by in categories: materials, space travel

Richard Mansell, Chief Executive Officer at IVO Limited gave the reasons he is optimistic about the Quantum Space Drive tests that will be done in orbital microgravity.

IF the orbital test works then it will lead to interstellar travel and shrinking it down would give material that would have anti-gravity like effects. We would spend the money to make nanocavities so that we could have propellantless thrust for floating cities. All of space and propulsion related science fiction would become possible within about three decades short of faster than light. This drive is in orbit now for a few months. I think DARPA gave them more money to conclusively prove if it works or not. All of the ground tests show it might work. But if it proves out then we first get 1,000 times better than a hall effect thruster but with no fuel limit. No fuel is used. So long as you have power, solar or nuclear the drive keeps working. So nuclear fuel supply for decades then thrust for decades. The theory proves out, then we make nanocavities which could act like antigravity then we get 1G or even 3G thrusters in space. This would be the Expanse TV show tech.

Jan 24, 2024

Engineers at UMass Amherst Harvest Abundant Clean Energy from Thin Air, 24/7

Posted by in categories: energy, materials

A team of engineers at the University of Massachusetts Amherst has recently shown that nearly any material can be turned into a device that continuously harvests electricity from humidity in the air.


Researchers describe the “generic Air-gen effect”—nearly any material can be engineered with nanopores to harvest, cost effective, scalable, interruption-free electricity.

Jan 24, 2024

The True Story of How GPT-2 Became Maximally Lewd

Posted by in categories: materials, robotics/AI

In this video, we recount an incident that occurred at OpenAI while researchers were trying to finetune GPT-2 to be as helpful and ethical as possible. It’s narrated that inadvertently flipping a single minus sign led GPT-2 to become the embodiment of a well-known cardinal sin.

#ai #aisafety #alignment.

Continue reading “The True Story of How GPT-2 Became Maximally Lewd” »

Jan 23, 2024

Long-lived valley states in bilayer graphene quantum dots

Posted by in categories: materials, quantum physics

Using the valley degree of freedom in analogy to spin to encode qubits could be advantageous as many of the known decoherence mechanisms do not apply. Now long relaxation times are demonstrated for valley qubits in bilayer graphene quantum dots.

Jan 23, 2024

Chinese Breakthrough: Revolutionary Superconducting Material With Record-Breaking Properties

Posted by in categories: chemistry, materials

A breakthrough discovery of a new superconducting material sets a new record for transition metal sulfide superconductors with a transition temperature of 11.6 K and a high critical current density, marking a significant advancement in superconductor development.

With the support of electrical transport and magnetic measurement systems of Steady High Magnetic Field Facility (SHMFF), a research team from Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences (CAS), discovered a new superconducting material called (InSe2)xNbSe2, which possesses a unique lattice structure. The superconducting transition temperature of this material reaches 11.6 K, making it the transition metal sulfide superconductor with the highest transition temperature under ambient pressure.

The results were published in the Journal of the American Chemical Society.

Jan 23, 2024

After 34 Years, Scientists Finally Made a Synthetic Material Nearly as Hard as Diamonds

Posted by in category: materials

Until now, this toughest type of carbon nitride was purely theoretical.

Jan 23, 2024

How human robot collaboration will affect the manufacturing industry

Posted by in categories: materials, robotics/AI

How human-robot collaboration will affect the manufacturing industry — https://bit.ly/3S7Skfa


By Nitin Rawat, Manufacturing Head, Addverb

Robotics are employed to boost production and efficiency in the manufacturing sector, and they are capable of working in any hazardous setting. Robotic arms are also employed to perform effective work in the industries. It has been years since the introduction of collaborative robots in the manufacturing industry, and they have now been applied in several applications at manufacturing facilities. Robots these days are exceptionally programmable and controllable, allowing them to perform complex tasks using AI and automation.

Continue reading “How human robot collaboration will affect the manufacturing industry” »

Jan 22, 2024

Experimental Evidence for a New Type of Magnetism

Posted by in category: materials

Spectroscopic data suggest that thin films of a certain semiconducting material can exhibit altermagnetism, a new and fundamental form of magnetism.

Jan 21, 2024

Stretchable interfaces come in from the cold

Posted by in categories: materials, wearables

By transferring laser-induced graphene to a hydrogel film at cryogenic temperatures, stretchable graphene–hydrogel interfaces can be created for application in wearable and implantable electronics.

Jan 21, 2024

Black phosphorus propels spintronics with exceptional anisotropic spin transport

Posted by in categories: materials, particle physics

With modern electronic devices approaching the limits of Moore’s law and the ongoing challenge of power dissipation in integrated circuit design, there is a need to explore alternative technologies beyond traditional electronics. Spintronics represents one such approach that could solve these issues and offer the potential for realizing lower-power devices.

A collaboration between research groups led by Professor Barbaros Özyilmaz and Assistant Professor Ahmet Avsar, both affiliated with the Department of Physics and the Department of Materials Science and Engineering at the National University of Singapore (NUS), has achieved a significant breakthrough by discovering the highly anisotropic spin transport nature of two-dimensional black .

The findings have been published in Nature Materials.

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