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Categories: Geoscience: Volcanoes, Mathematics: Puzzles
Published Ice-capped volcanoes slower to erupt, study finds
(via sciencedaily.com) The Westdahl Peak volcano in Alaska last erupted in 1992, and continued expansion hints at another eruption soon. Experts previously forecasted the next blast to occur by 2010, but the volcano -- located under about 1 kilometer of glacial ice -- has yet to erupt again. Using the Westdahl Peak volcano as inspiration, a new volcanic modeling study examined how glaciers affect the stability and short-term eruption cycles of high-latitude volcanic systems -- some of which exist along major air transportation routes.
Published Researchers home in on Thera volcano eruption date
(via sciencedaily.com) Tree-ring, ice core and volcano experts teamed up to identify one of the most climatically impactful volcanic eruptions in 4,000 years -- Aniakchak II. In the process, they narrowed down potential dates for the Thera volcano eruption.
Published Scientific advance leads to a new tool in the fight against hackers
(via sciencedaily.com) A new form of security identification could soon see the light of day and help us protect our data from hackers and cybercriminals. Quantum mathematicians have solved a mathematical riddle that allows for a person's geographical location to be used as a personal ID that is secure against even the most advanced cyber attacks.
Published Volcanoes at fault if the Earth slips
(via sciencedaily.com) A new study has attributed the root cause of the 2016 Kumamoto earthquakes to specific geological damage. A relatively large dip-slip displacement was discovered at the site. The Futagawa strike-slip fault is a vertical break in the ground tracing a line southwest originating from Mount Aso.
Published A swarm of 85,000 earthquakes at the Antarctic Orca submarine volcano
(via sciencedaily.com) In a remote area, a mix of geophysical methods identifies magma transfer below the seafloor as the cause.
Published Volcano monitoring at Mount Etna using fiber optic cables
(via sciencedaily.com) In order to understand and predict volcanic events even better, a better understanding of the diverse underground processes involved is required. A new way to detect such processes, even if they are very subtle, is to use fiber optic cables as sensors. The analysis of light that is backscattered in them when the cables are deformed by vibrations, for example, has now made it possible for the first time to determine the volcanic signature of the Sicilian volcano Etna very precisely.
Published Drought alters Mammoth Mountain’s carbon dioxide emissions
(via sciencedaily.com) A study suggests the weight of snow and ice atop the Sierra Nevada affects a California volcano's carbon dioxide emissions, one of the main signs of volcanic unrest.
Published Describing the devastating eruption in Tonga
(via sciencedaily.com) On January 15, the volcano Hunga Tonga-Hunga Ha'apai devastated the nation of Tonga. The eruption triggered tsunamis as far afield as the Caribbean and generated atmospheric waves that travelled around the globe several times. Meanwhile, the volcano's plume shot gas and ash through the stratosphere into the lower mesosphere.
Published Single-photon source paves the way for practical quantum encryption
(via sciencedaily.com) Researchers describe new high-purity single-photon source that can operate at room temperature. The source is an important step toward practical applications of quantum technology, such as highly secure communication based on quantum key distribution (QKD).
Published Active video games provide alternative workout
(via sciencedaily.com) Working out isn't known for being fun. But new active video and virtual reality games may help change that. Exergaming, or active video gaming, may be the perfect introduction to helping people be more active, according to new research.
Published The oxidation of volcanoes -- a magma opus
(via sciencedaily.com) A new study unlocks the science behind a key ingredient -- namely oxygen -- in some of the world's most violent volcanoes. The research offers a new model for understanding the oxidation state of arc magmas, the lavas that form some volcanoes, such as the one that erupted dramatically in Tonga earlier this year. The plume from Tonga's underwater volcanic eruption on Jan. 15 rose 36 miles into the air. Ash from the volcano reached the mesosphere, Earth's third layer of atmosphere.
Published Water determines magma depth, a key to accurate models of volcanic activity, eruption
(via sciencedaily.com) Around the world, between 40 and 50 volcanoes are currently erupting or in states of unrest, and hundreds of millions of people are at risk of hazards posed by these potentially active volcanos. Yet, despite the profound hazards posed to human life and property by volcanic eruptions, humanity still cannot reliably and accurately predict them, and even when forecasts are accurately made by experts, they may not afford ample time for people to evacuate and make emergency preparations.
Published Nealtican lava flow field, Popocatépetl volcano: A window to the past and future hazards
(via sciencedaily.com) The Popocatépetl volcano, located southeast of Mexico City, stands as the second highest peak in Mexico and is considered to be one of the potentially most dangerous volcanoes in the world, given its record of highly explosive eruptions over the last 23,000 years.
Published Computer games in the classroom: Educational success depends on the teacher
(via sciencedaily.com) Future teachers see educational potential in computer games, study shows. Teacher training should therefore address their potential in the classroom.
Published Hidden weaknesses within volcanoes may cause volcano collapse
(via sciencedaily.com) Lava domes form at the top of many volcanoes when viscous lava erupts. When they become unstable, they can collapse and cause a hazard. An international team of researchers has analyzed summit dome instabilities at Merapi Volcano, Indonesia. The researchers hope that by understanding the inner processes, volcano collapses can be better forecasted.
Published California's push for computer science education examined
(via sciencedaily.com) Despite California's computer science education policies, gender, racial and ethnic disparities persist among the high schools that offer these courses, the students enrolled in them and the faculty who teach them.
Published Spatial training with blocks and puzzles could unlock the UK's mathematical potential
(via sciencedaily.com) A sustained focus on spatial reasoning training could help children learn science, technology, engineering and mathematics.
Published Words are needed to think about numbers, study suggests
(via sciencedaily.com) Researchers have found a new relationship between counting ability of Tsimane' individuals and their ability to perform matching tasks that involve numbers up to about 25. The results suggest that in order to think about exact numbers, people need to have a word for that number.
Published Pink pumice key to revealing explosive power of underwater volcanic eruptions
(via sciencedaily.com) The presence of pink pumice in the giant pumice raft of the 2012 Havre that drifted across the southwest Pacific Ocean has led researchers to recognize the immense power of underwater volcanic eruptions.
Published Researchers use tiny magnetic swirls to generate true random numbers
(via sciencedaily.com) Skyrmions, tiny magnetic anomalies that arise in two-dimensional materials, can be used to generate true random numbers useful in cryptography and probabilistic computing.