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Archive for the ‘energy’ category: Page 98

Mar 7, 2023

Researchers fabricate novel flexible supercapacitors on paper

Posted by in categories: chemistry, energy, wearables

Wearable devices such as smartwatches, fitness trackers, and virtual reality headsets are becoming commonplace. They are powered by flexible electronics that consist of electrodes with plastic or metal foil as substrates. However, both of these come with their own drawbacks. Plastics suffer from poor adhesion and low durability, while metal foils make the devices bulky and less flexible.

In light of this, paper is a promising alternative. It is porous, light, thin, foldable, and flexible. Moreover, paper has randomly distributed fibers that provide a large surface area for depositing active electrode material, making for excellent electrochemical properties.

Accordingly, researchers have developed various paper-based supercapacitors, devices that store electric charge and energy, by stacking multiple sheets, acting as positive and negative electrodes and separators. However, such an arrangement increases device size and resistance. In addition, they tend to form creases, peel off, and slip over each other, which further deteriorate device performance.

Mar 6, 2023

Silicon Encoded Spin Qubits Achieve Universality

Posted by in categories: energy, quantum physics

HRL Laboratories, LLC, has published the first demonstration of universal control of encoded spin qubits. This newly emerging approach to quantum computation uses a novel silicon-based qubit device architecture, fabricated in HRL’s Malibu cleanroom, to trap single electrons in quantum dots. Spins of three such single electrons host energy-degenerate qubit states, which are controlled by nearest-neighbor contact interactions that partially swap spin states with those of their neighbors.

Mar 6, 2023

First hydrogen-powered airplane takes flight in Moses Lake

Posted by in categories: energy, transportation

Hydrogen power!


The first flight of a hydrogen-powered airplane was a success this week, showing zero-emissions air travel could be on the horizon.

Mar 6, 2023

Why life is not a thing but a restless manner of being

Posted by in category: energy

To figure out the origin of life might take a conceptual shift towards seeing it as a pattern of molecular energy by Tim Requarth + BIO.

Mar 5, 2023

Wind-Powered Cargo Ships Are the Future: Debunking 4 Myths That Stand in the Way of Cutting Emissions

Posted by in categories: energy, transportation

And yet the scientific consensus is that 1.5℃ is the real upper limit we can risk. Beyond that, dangerous tipping points could spell even more frequent disasters.

Luckily, the IMO will revise its strategy this July. I and many others expect far more ambition—because zero shipping emissions by 2050 is a necessity to keep the 1.5℃ limit credible. That gives us less than three decades to clean up an industry whose ships have an average life of 25 years. The 2050 timeline conceals that our carbon budget will likely run out far more quickly—requiring urgent action for all sectors, including shipping.

Continue reading “Wind-Powered Cargo Ships Are the Future: Debunking 4 Myths That Stand in the Way of Cutting Emissions” »

Mar 3, 2023

Rural Culture and its Discontents

Posted by in category: energy

“folkways and beliefs must be brought low, that Power may substitute for their influence its own authority and build its church on their ruins”. — Bertrand de Jouvenel.

Read my article https://medium.com/@tsverava_62020/rural-culture-and-its-dis…d1317dd541

Mar 3, 2023

This 34,000-Ton ‘Infinity Train’ Will Recharge Itself… With Gravity

Posted by in categories: energy, transportation

face_with_colon_three year 2022.


It’s all in the power of kinetic energy. Oh, and batteries.

Feb 28, 2023

Tiny insects excrete vast amounts of urine using an anal catapult

Posted by in category: energy

Sharpshooters eliminate up to 300 times their body weight in liquid waste each day, and save energy through a phenomenon called superpropulsion.

Feb 28, 2023

The tiny diamond sphere that could unlock clean power

Posted by in categories: energy, innovation

A diamond sphere made in Germany was key to December’s breakthrough fusion experiment in California.

Feb 28, 2023

First Law of Thermodynamics Breakthrough Could Upend a Century of Equilibrium Theory in Physics

Posted by in categories: energy, physics, space

Physicists in West Virginia have announced a potential breakthrough that could help upend a longstanding constraint imposed by the first law of thermodynamics.

The discovery, involving how energy is converted in plasmas in space, was described in new research published in the journal Physical Review Letters, and could potentially require scientists to have to rethink how plasmas are heated both in the lab and in space.

The first law of thermodynamics, an expression of the law of conservation of energy albeit styled with relation to thermodynamic processes, conveys that the total energy within a system will remain constant, but that it can be converted from one form of energy into another. More simply, the idea is commonly expressed as “energy can neither be created or destroyed.”