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Are you in the market for a loophole in the laws that forbid perpetual motion? Knowing you’ve got yourself an authentic time crystal takes more than a keen eye for high-quality gems.

In a new study, an international team of researchers used Google’s Sycamore quantum computing hardware to double-check their theoretical vision of a time crystal, confirming it ticks all of the right boxes for an emerging form of technology we’re still getting our head around.

Similar to conventional crystals made of endlessly repeating units of atoms, a time crystal is an infinitely repeating change in a system, one that remarkably doesn’t require energy to enter or leave.

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Citizen journalist now close to death.

Citizen journalist Zhang Zhan is in a Chinese prison for reporting from Wuhan during the height of the city’s coronavirus outbreak in 2020. Her family says she is on hunger strike and could be near death. All calls for her release have gone unheeded.

“Zhang Zhan distributed independent information on what happened in Wuhan,” the managing director of Reporters Without Borders Germany, Christian Mihr, told DW. He asked Germany and the EU to be more outspoken ahead of the 2022 Winter Olympics in Beijing.

Continue reading “China: Citizen journalist Zhang Zhan detained over Wuhan reporting | DW News” | >

This week, Amazon’s Web Services (AWS) kicked off its tenth re: Invent conference, an event where it typically announces the biggest changes in the cloud computing industry’s dominant platform. This year’s news includes faster chips, more aggressive artificial intelligence, more developer-friendly tools, and even a bit of quantum computing for those who want to explore its ever-growing potential.

Amazon is working to lower costs by boosting the performance of its hardware. Their new generation of machines powered by the third generation of AMD’s EPYC processors, the M6a, is touted as offering a 35% boost in price/performance over the previous generation of M5a machines built with the second generation of the EPYC chips. They’ll be available in sizes that range from two virtual CPUs with 8GB of RAM (m6a.large) up to 192 virtual CPUs and 768GB of RAM (m6a.48xlarge).

AWS also notes that the chips will boast “always-on memory encryption” and rely on faster custom circuitry for faster encryption and decryption. The feature is a nod to users who worry about sharing hardware in the cloud and, perhaps, exposing their data.

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An international team led by EPFL scientists, has unveiledthat has only been observed in engineered atomic thin layers. The phenomenon can be reproduced by the native defects of lab grown large crystals, making future investigation of Kondo systems and quantum electronic devices more accessible.

The properties of materials that are technologically interesting often originate from defects on their atomic structure. For example, changing the optical properties of rubies with chrome inclusions has helped develop lasers, while nitrogen-vacancy in diamonds are paving the way for applications such as quantum magnetometers. Even in the metallurgical industry, atomic-scale defects like dislocation enhances the strength of forged steel.

Another manifestation of atomic-scale defects is the Kondo effect, which affects a metal’s conduction properties by scattering and slowing the electrons and changing the flow of electrical current through it. This Kondo effect was first observed in metals with very few magnetic defects, e.g. gold with few parts per million of iron inclusions. When the diluted magnetic atoms align all the electrons spin around them, this slows the electrical current motion inside the material, equally along every direction.

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So can solar energy cut it?

Can we really move to a society not harnessed to the unsustainable practices of the old way.

I look at exactly how much land might be required & whether the lights will be able to stay on in the future as they have in the past.

I’m sure most know the answer, but this gives real facts and figures that can be used to defend against the fossil fuel apologists, and shared with friends, family and colleagues who are still learning.

Continue reading “Can The Sun Power The Earth? Will Solar Energy Cope Or Will The Lights Go Out?” | >

Researchers have developed a new approach to machine learning that ‘learns how to learn’ and out-performs current machine learning methods for drug design, which in turn could accelerate the search for new disease treatments.

The method, called transformational machine learning (TML), was developed by a team from the UK, Sweden, India and Netherlands. It learns from multiple problems and improves performance while it learns.

TML could accelerate the identification and production of new drugs by improving the machine learning systems which are used to identify them. The results are reported in the Proceedings of the National Academy of Sciences.

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There’s also been a lot of interest in creating more versatile “living inks” made up of bacteria, which can be genetically engineered to do everything from deliver drugs to clean up pollutants. But so far, approaches have relied on mixing microbes with polymers that help provide the ink with some structural integrity.

Now, researchers have developed a new living ink that more closely lives up to the name by replacing the polymers with a protein made by genetically engineered E. coli bacteria. The researchers say this opens the door to seeding large-scale, living structures from nothing more than a simple cell culture.

The key to the breakthrough was to repurpose the proteins that E. coli cells secrete to stick together and form hard-to-shift biofilms. In a paper in Nature Communications, the researchers describe how they genetically engineered bacteria to produce two different versions of this protein known as a “knob” and a “hole,” which then lock together to form a robust cross-linked mesh.

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Solar car can be better.

The cost of electric vehicle battery packs has fallen to $132 per kWh – continuing decades of cost improvements. However, it might go up over the next year as increased material prices are catching up to incremental cost improvements.

Price per kWh is the metric used to track the price of batteries. It can be used to talk about the cost of battery packs or battery cells.

For example, if Tesla were achieving a cost per kWh of $150 for its Model S battery pack, it would mean that the battery pack costs $15,000 since it has a capacity of 100 kWh.

Continue reading “Electric vehicle battery cost falls to 2 per kWh, but it might go up from there” | >