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Compactification of dimensions in string theory and inflationary expansion of space from Planck scale.


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Physicists have come up with a new idea for how our universe began, and it could also explain dark matter. They say that if our universe has small extra dimensions, then these can temporarily store energy, causing a “cosmological stasis” in which the universe expands but nothing else happens. Then the stasis ends and dark matter remains. Sounds wild. What are we to make of this?

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Scientists have discovered a revolutionary way to control superconductivity by twisting ultra-thin layers of a superconducting material. This method allows precise tuning of the superconducting gap, a crucial factor for making quantum devices more efficient. Unlike previous approaches that focuse

Could gravitational waves—the ripples in space-time—also be quantum in nature? Scientists believe they might! A new study suggests gravitational waves could induce quantum entanglement, revolutionizing physics and reshaping our understanding of gravity. But detecting these effects requires cutting-edge technology. Will future observatories like LIGO-India unlock the quantum secrets of space-time? Dive into this fascinating discovery and explore the possibilities of a quantum universe! Watch now and join the discussion!

Paper link: https://www.sciencedirect.com/science… 00:00 Introduction 00:29 The Quantum Nature of Gravitational Waves – A Theoretical Breakthrough 02:21 The Research Behind the Discovery 04:13 Implications and the Future of Quantum Gravitational Wave Research 07:30 Outro 07:43 Enjoy MUSIC TITLE : Starlight Harmonies MUSIC LINK : https://pixabay.com/music/pulses-star… Visit our website for up-to-the-minute updates: www.nasaspacenews.com Follow us Facebook: / nasaspacenews Twitter: / spacenewsnasa Join this channel to get access to these perks: / @nasaspacenewsagency #NSN #NASA #Astronomy#QuantumPhysics #GravitationalWaves #SpaceTime #QuantumGravity #Einstein #Physics #Astrophysics #Science #BlackHoles #LIGO #QuantumEntanglement #Cosmology #DarkMatter #BigBang #QuantumMechanics #ScienceExplained #FutureOfPhysics #Space #QuantumWorld #Relativity #TimeTravel #HiggsBoson #StringTheory #AstroScience #QuantumTechnology #SpaceExploration #GeneralRelativity #UnifiedTheory #TheoreticalPhysics #QuantumReality #WaveParticleDuality.

Chapters:
00:00 Introduction.
00:29 The Quantum Nature of Gravitational Waves – A Theoretical Breakthrough.
02:21 The Research Behind the Discovery.
04:13 Implications and the Future of Quantum Gravitational Wave Research.
07:30 Outro.
07:43 Enjoy.

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Quantum gravity is the missing link between general relativity and quantum mechanics, the yet-to-be-discovered key to a unified theory capable of explaining both the infinitely large and the infinitely small. The solution to this puzzle might lie in the humble neutrino, an elementary particle with no electric charge and almost invisible, as it rarely interacts with matter, passing through everything on our planet without consequences.

For this very reason, neutrinos are difficult to detect. However, in rare cases, a neutrino can interact, for example, with water molecules at the bottom of the sea. The particles emitted in this interaction produce a “blue glow” known as Čerenkov radiation, detectable by instruments such as KM3NeT.

The KM3NeT (Kilometer Cube Neutrino Telescope) is a large underwater observatory designed to detect neutrinos through their interactions in water. It is divided into two detectors, one of which, ORCA (Oscillation Research with Cosmics in the Abyss), was used for this research. It is located off the coast of Toulon, France, at a depth of approximately 2,450 meters.

The rapid evolution of artificial intelligence (AI) is poised to create societal transformations. Indeed, AI is already emerging as a factor in geopolitics, with malicious non-state actors exploiting its capabilities to spread misinformation and potentially develop autonomous weapons. To be sure, not all countries are equal in AI, and bridging the “AI divide” between the Global North and South is vital to ensuring equal representation while addressing regulatory concerns and the equitable distribution of benefits that can be derived from the technology.

Most G20 members have established comprehensive national AI strategies, notably technology giants like the United States, United Kingdom, China, and countries of the European Union. Global South nations such as Brazil, Argentina, and India, despite economic constraints, are demonstrating progress in leveraging AI in areas like social services and agriculture. Future strategies must anticipate emerging threats like Generative AI (GenAI) and Quantum AI, prioritising responsible governance to mitigate biases, inequalities, and cybersecurity risks.

John Archibald Wheeler was one of the most daring thinkers in twentieth-century physics, famed for his deep insights into quantum mechanics, general relativity, and the nature of information. In his classic essay on “It from Bit,” Wheeler proposed that at the heart of reality lies a fundamentally informational thread. This means that rather than starting with “things” — material objects with an independent existence — one might instead begin with “bits,” the discrete units of information that become “real” only when observed. Within this sweeping vision, the observer plays a crucial role in bringing the universe into a definite existence, and information takes center stage in shaping the very character of physical phenomena.

In broad strokes, Wheeler’s idea of “It from Bit” emerges from the curious interplay between the quantum world and classical objects. At the core of quantum mechanics is the principle that measuring or observing something at the microscopic scale affects its state. According to the standard interpretation, a system in a so-called superposition will “collapse” into a particular outcome when measured. Wheeler’s bold claim was that this phenomenon illuminates a more general fact: that information, not matter, might be the building block of reality. Thus, any physical “it” — an electron, a planet, or even the entire cosmos — ultimately grows from answers to yes/no questions (bits), shaped by acts of measurement. Put more simply, Wheeler wanted us to see the world as not built out of little billiard-ball-like atoms existing in some absolute manner, but out of meaningful acts of observation that yield discrete bits of data.

Behind this elegant concept lies a deep philosophical backdrop. Wheeler urged us to ponder how the universe came to be what it is, and why. If we trace everything back to an early cosmos, we arrive at a place where only quantum possibilities existed — no fixed table of facts and objects. Gradually, so his argument goes, as the universe evolved and observers emerged, questions got asked, measurements were made, bits of information accumulated, and reality “crystallized.” This leap from quantum weirdness to classical solidity thus becomes a grand puzzle about information. Rather than letting classical physics occupy center stage from the beginning, Wheeler reversed the script: quantum possibilities plus acts of observation define and generate the classical world we experience. In this sense, the cosmic stage is incomplete without the audience, and reality only stabilizes by virtue of these repeated question-and-answer interactions.

This document intends to provide a summary of the cybersecurity threats in Japan with reference to globally observed cyber landscape. It looks at various kinds of cyberattacks their quantum and impact as well as specific verticals that are targeted by various threat actors.

As in February, 2024, in Japan, an organisation faces an average of 1,003 attacks per week, with FakeUpdates being the top malware. Most malicious files are delivered via email, and Remote Code Execution is the most common vulnerability exploit. In recent times, major Japanese incidents include a sophisticated malware by a nation state, attacks on Nissan and JAXA, and data breaches at the University of Tokyo and CASIO. Globally, incidents include Ukrainian media hacks, a ransomware attack on U.S. schools, and disruptions in U.S. healthcare due to cyber-attacks. The document also covers trends in malware types, attack vectors, and impacted industries over the last 6 months.

The details provide an overview of the threat landscape and major incidents in Japan and globally, highlighting the prevalence of attacks, common malware types, and impact on various industries and organisations. The information described should create awareness and help businesses and government organisation prepare well to safely operate in a digital environment.