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Sep 18, 2024

Professor Proposes how a Black Hole in Orbit Around a Planet could be a Sign of an Advanced Civilization

Posted by in categories: cosmology, existential risks, mathematics

In 1971, English mathematical physicist and Nobel-prize winner Roger Penrose proposed how energy could be extracted from a rotating black hole. He argued that this could be done by building a harness around the black hole’s accretion disk, where infalling matter is accelerated to close to the speed of light, triggering the release of energy in multiple wavelengths.

Since then, multiple researchers have suggested that advanced civilizations could use this method (the Penrose Process) to power their civilization and that this represents a technosignature we should be on the lookout for.

Examples include John M. Smart’s Transcension Hypothesis, a proposed resolution to the Fermi Paradox where he suggested advanced intelligence may migrate to the region surrounding black holes to take advantage of the energy available.

Sep 18, 2024

LiMnO₂ Electrodes could Replace Ni/Co in Electric Vehicle Batteries

Posted by in categories: energy, sustainability, transportation

Lithium-ion (or Li-ion) batteries are heavy hitters when it comes to the world of rechargeable batteries. As electric vehicles become more common in the world, a high-energy, low-cost battery utilizing the abundance of manganese (Mn) can be a sustainable option to become commercially available and utilized in the automobile industry.

Currently, batteries used for powering electric vehicles (EVs) are nickel (Ni) and cobalt (Co)-based, which can be expensive and unsustainable for a society with a growing desire for EVs.

By switching the positive electrode materials to a lithium/manganese-based material, researchers aim to maintain the high performance of Ni/Co-based materials but with a low-cost, sustainable twist.

Sep 18, 2024

Finding Love: Study reveals Where Love Lives in the Brain

Posted by in category: neuroscience

Researchers have taken looking for love to a whole new level, revealing that different types of love light up different parts of the brain. We use the word ‘love’ in a bewildering range of contexts – from sexual adoration to parental love or the love of nature. Now, more comprehensive imaging of the brain may shed light on why we use the same word for such a diverse collection of human experiences.

‘You see your newborn child for the first time. The baby is soft, healthy and hearty – your life’s greatest wonder. You feel love for the little one.’

The above statement was one of many simple scenarios presented to fifty-five parents, self-described as being in a loving relationship. Researchers from Aalto University utilised functional magnetic resonance imaging (fMRI) to measure brain activity while subjects mulled brief stories related to six different types of love.

Sep 18, 2024

Earth and Environmental News, Videos and Images

Posted by in category: internet

At Earth.com, our goal is to provide the internet with a homepage for anything and everything about our planet Earth and the environment.

Sep 18, 2024

Neuromorphic platform presents significant leap forward in computing efficiency

Posted by in categories: mobile phones, robotics/AI

Researchers at the Indian Institute of Science (IISc) have developed a brain-inspired analog computing platform capable of storing and processing data in an astonishing 16,500 conductance states within a molecular film. Published today in the journal Nature, this breakthrough represents a huge step forward over traditional digital computers in which data storage and processing are limited to just two states.

Such a platform could potentially bring complex AI tasks, like training Large Language Models (LLMs), to personal devices like laptops and smartphones, thus taking us closer to democratizing the development of AI tools. These developments are currently restricted to resource-heavy data centers, due to a lack of energy-efficient hardware. With silicon electronics nearing saturation, designing brain-inspired accelerators that can work alongside silicon chips to deliver faster, more efficient AI is also becoming crucial.

“Neuromorphic computing has had its fair share of unsolved challenges for over a decade,” explains Sreetosh Goswami, Assistant Professor at the Centre for Nano Science and Engineering (CeNSE), IISc, who led the research team. “With this discovery, we have almost nailed the perfect system—a rare feat.”

Sep 18, 2024

Towards spike-based machine intelligence with neuromorphic computing

Posted by in categories: futurism, robotics/AI

The authors review the advantages and future prospects of neuromorphic computing, a multidisciplinary engineering concept for energy-efficient artificial intelligence with brain-inspired functionality.

Sep 18, 2024

Team discovers naturally occurring DNA-protein hybrids

Posted by in category: biotech/medical

Thanks to a serendipitous discovery and a lot of painstaking work, scientists can now build biohybrid molecules that combine the homing powers of DNA with the broad functional repertoire of proteins—without having to synthesize them one by one, researchers report in a new study. Using a naturally occurring process, laboratories can harness the existing molecule-building capacities of bacteria to generate vast libraries of potentially therapeutic DNA-protein hybrid molecules.

Sep 18, 2024

Quantum computers teleport and store energy harvested from empty space

Posted by in categories: computing, quantum physics

A quantum computing protocol makes it possible to extract energy from seemingly empty space, teleport it to a new location, then store it for later use.

By Karmela Padavic-Callaghan

Sep 18, 2024

Osaka University and RIKEN’s Flagged Weight Optimization Illuminates Color Codes in Quantum Computing

Posted by in categories: computing, quantum physics

In a recent paper published in PRX Quantum, a team of researchers from Osaka University and RIKEN presented an approach to improve the fault-tolerance of color codes, a type of quantum error correction (QEC) code. Their method, known as Flagged Weight Optimization (FWO), targets the underlying challenges of color-code architectures, which historically suffer from lower thresholds under circuit-level noise. By optimizing the decoder weights based on the outcomes of flag qubits, this method improves the threshold values of color codes.

Color codes are an alternative to surface codes in quantum error correction that implement all Clifford gates transversally, making them a potential solution for low-overhead quantum computing, as noted by the paper. However, their practical use has been limited thus far by the relatively low fault-tolerance thresholds under circuit-level noise. Traditional methods of stabilizer measurement, which involve high-weight stabilizers acting on numerous qubits, introduce substantial circuit depth and errors, ultimately leading to lower overall performance.

The research team focused on two color-code lattices—the (4.8.8) and (6.6.6) color codes. The team noted that while these codes are considered topologically advantageous for QEC, their previous thresholds were relatively low, making them less effective for real-world applications. For example, the threshold for the (4.8.8) color code was previously around 0.14%, limiting its use in fault-tolerant computing.

Sep 18, 2024

A refresh-in-sensing reusable biosensor

Posted by in categories: biotech/medical, chemistry

An electrochemical biosensor capable of detecting low levels of cancer biomarkers is reusable over 200 regeneration cycles without compromising device sensitivity and accuracy.

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