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Categories: Computer Science: Encryption, Geoscience: Volcanoes
Published Let’s talk about the 1,800-plus 'young' volcanoes in the US Southwest
(via sciencedaily.com) They're born. They live once, erupting for a period that might last for days, years or decades. Then, they go dark and die. This narrative describes the life of a monogenetic volcano, a type of volcanic hazard that can pose important dangers despite an ephemeral existence. The landscape of the southwestern U.S. is heavily scarred by past eruptions of such volcanoes, and a new study marks a step toward understanding future risks for the region.
Published The silent build-up to a super-eruption
(via sciencedaily.com) It is estimated that about 5-10 volcanoes worldwide are capable of producing a super-eruption that could catastrophically affect global climate. One of these volcanoes hides below the waters of Lake Toba in Sumatra and has caused two super-eruptions in the last one million years. But when will the next one be? Will there be any warning signs? To answer these questions, an international team of geologists developed an analysis of the levels of uranium and lead in zircons -- a mineral typically found in explosive volcanic eruptions -- to determine how long it took the volcano to prepare for its super-eruptions.
Published Physicists describe photons’ characteristics to protect future quantum computing
(via sciencedaily.com) Physicists have described in theoretical terms how to develop codes that cannot be broken by quantum computers -- computing devices of the future. These codes rely on distributing single photons that share a quantum character solely among the parties that wish to communicate.
Published Using quantum Parrondo’s random walks for encryption
(via sciencedaily.com) SUTD has set out to apply concepts from quantum Parrondo's paradox in search of a working protocol for semiclassical encryption.
Published How to better identify dangerous volcanoes
(via sciencedaily.com) The more water is dissolved in the magma, the greater the risk that a volcano will explode. A new study now shows that this simple rule is only partially true. Paradoxically, high water content significantly reduces the risk of explosion.
Published What lies beneath: Volcanic secrets revealed
(via sciencedaily.com) Lava samples have revealed a new truth about the geological make-up of the Earth's crust and could have implications for volcanic eruption early warning systems, a new study has found.
Published Threat of catastrophic supervolcano eruptions is ever-present
(via sciencedaily.com) Scientists have studied an ancient supervolcano in Indonesia and found such volcanoes remain active and hazardous for thousands of years after a super-eruption, prompting the need for a rethink of how these potentially catastrophic events are predicted.
Published Quantum networks in our future
(via sciencedaily.com) Investigators outline how a time-sensitive network control plane could be a key component of a workable quantum network. In addition to the well-understood requirements of transmission distance and data rate, for quantum networks to be useful in a real-world setting there are at least two other requirements that need to be considered. One is real-time network control, specifically time-sensitive networking. The second is cost.
Published One material with two functions could lead to faster memory
(via sciencedaily.com) Researchers have developed a new light-emitting memory device by integrating a resistive random-access memory with a light-emitting electrochemical cell that are both based on perovskite. The results are promising for faster data storage and reading in future electronic devices and open a new avenue of applications for perovskite optoelectronics.
Published Is your mobile provider tracking your location? New technology could stop it
(via sciencedaily.com) Right now, there is a good chance your phone is tracking your location -- even with GPS services turned off. That's because, to receive service, our phones reveal personal identifiers to cell towers owned by major network operators. This has led to vast and largely unregulated data-harvesting industries based around selling users' location data to third parties without consent. For the first time, researchers have found a way to stop this privacy breach using existing cellular networks. The new system protects users' mobile privacy while providing normal mobile connectivity.
Published Climate change will transform cooling effects of volcanic eruptions
(via sciencedaily.com) Researchers have shown that human-caused climate change will have important consequences for how volcanic gases interact with the atmosphere.
Published Impenetrable optical OTP security platform
(via sciencedaily.com) An anticounterfeiting smart label and security platform which makes forgery fundamentally impossible has been proposed. The device accomplishes this by controlling a variety of information of light including the color, phase, and polarization in one optical device.
Published Minor volcanic eruptions could ‘cascade’ into global catastrophe
(via sciencedaily.com) Researchers call for a shift in focus away from risks of 'super-volcanic' eruptions and towards likelier scenarios of smaller eruptions in key global 'pinch points' creating devastating domino effects.
Published Sea levels influence eruptions on volcanic island
(via sciencedaily.com) The rise and fall of sea levels influence the likelihood of volcanic eruptions on the Greek island of Santorini, new research has discovered. Analyzing the timings of eruptions over hundreds of thousands of years, the researchers found that a 40 meter fall in sea level is a crucial point beyond which eruptions are more likely to occur. The findings could have implications for millions of people living on volcanic islands around the world.
Published Giant friction experiment at Kilauea volcano
(via sciencedaily.com) A new analysis of the 2018 collapse of Kilauea volcano's caldera helps to confirm the reigning scientific paradigm for how friction works on earthquake faults. The model quantifies the conditions necessary to initiate the kind of caldera collapse that sustains big, damaging eruptions of basaltic volcanoes like Kilauea and could help to inform forecasting and mitigation.
Published Huge volcanic eruption disrupted climate but not human evolution
(via sciencedaily.com) A massive volcanic eruption in Indonesia about 74,000 years ago likely caused severe climate disruption in many areas of the globe, but early human populations were sheltered from the worst effects, according to a new study.
Published Supervolcano fed from Earth's mantle caused crustal plates to rotate
(via sciencedaily.com) The plates of the Earth's crust perform complicated movements that can be attributed to quite simple mechanisms. That is the short version of the explanation of a rift that began to tear the world apart over a length of several thousand kilometers 105 million years ago.
Published To predict underwater volcano eruptions, scientist looks at images from space
(via sciencedaily.com) Original source A new study monitored satellite images to obtain sea discoloration data as a novel indicator in detecting if an underwater volcano's eruption is imminent.
Published Like a molten pancake
(via sciencedaily.com) Original source Why magma flowed along a curved pathway during the 2018 eruption of a Galapagos volcano is explained by a new model.
Published Compact quantum computer for server centers
(via sciencedaily.com) Quantum computers have been one-of-a-kind devices that fill entire laboratories. Now, physicists have built a prototype of an ion trap quantum computer that can be used in industry. It fits into two 19-inch server racks like those found in data centers throughout the world. The compact, self-sustained device demonstrates how this technology will soon be more accessible.