Exploration and research – Sail Theory http://sailtheory.com/ Thu, 29 Sep 2022 06:59:45 +0000 en-US hourly 1 https://wordpress.org/?v=5.9.3 https://sailtheory.com/wp-content/uploads/2021/06/icon-2021-06-25T011712.182-150x150.png Exploration and research – Sail Theory http://sailtheory.com/ 32 32 Venus Metals Corporation Limited Annual Report to Shareholders https://sailtheory.com/venus-metals-corporation-limited-annual-report-to-shareholders/ Thu, 29 Sep 2022 05:25:01 +0000 https://sailtheory.com/venus-metals-corporation-limited-annual-report-to-shareholders/ Perth, Australia (ABN Newswire) – In 2021-22, Venus Metals Corporation Limited (ASX: VMC) conducted exploration activities on its diverse portfolio of projects focused primarily on gold, lithium, rare earths, base metals and vanadium. Highlights of these exploration activities are summarized below: YOUANMI GOLD PROJECT Youanmi’s near-surface resource increased from 204 koz Au to 1,004 koz […]]]>

Perth, Australia (ABN Newswire) – In 2021-22, Venus Metals Corporation Limited (ASX: VMC) conducted exploration activities on its diverse portfolio of projects focused primarily on gold, lithium, rare earths, base metals and vanadium.

Highlights of these exploration activities are summarized below:

YOUANMI GOLD PROJECT

Youanmi’s near-surface resource increased from 204 koz Au to 1,004 koz Au. This resource upgrade includes 16,000m of additional RC drilling above 160m vertical depth and provides a 26% increase in contained gold near surface. The improved near-surface resource increases Youanmi’s overall gold inventory to 3.2 million ounces of Au. Albion Process Technology’s assay work has averaged 92.2% gold extraction (up to 94%) for the Youanmi Deeps mineralization.

BRIDGETOWN GREENBUSHES EAST LITHIUM BASE METALS EXPLORATION PROJECT

VMC’s Greenbushes East Lithium and Bridgetown East Ni-Cu-PGE projects include four concessions held by a Venus subsidiary, E70/5315, E70/5316, E70/5620 and E70/5712, and two exploration applications, E70/6009 and E 70/5675 (MVC). The western boundary of the MVC and Venus subsidiary tenure abuts the Greenbushes mining leases.

MANGAROON NORTH RARE EARTH PROJECT

Venus Metals is well positioned with four properties adjacent to the Mangaroon-Yangibana rare earth mineralized zone (REE). These buildings are considered prospective for REE due to the presence of host lithologies similar to those of the Dreadnaught’ Yin and Yangibana deposits, geological continuity, and linear and circular structures along major northwest-trending translithospheric faults, including including the Edmund fault, which crosses the buildings of Venus. .

MARVEL LOCH EAST RARE EARTH PROJECT

Venus’ Marvel Loch East Rare Earth Project consists of one exploration license granted (E15/1796) and four applications (ELA 15/1944, 15/1946, 15/1947 and 77/2721) for a total area of ​​283 blocks ( 828 km2). E15/1796 covers aeromagnetic highs in granitic terrain that have historically been interpreted to represent an arcuate residual greenstone belt with associated mafic-ultramafic rocks; most of the EL is covered by sand plain and salt lake sediments with some subcrops of mainly granitic rocks. Recently, Venus completed a large-scale geochemical study, the interpretation of the results of which is in progress.

YOUANMI BASE METALS – REE PROJECT

Wide-spaced reconnaissance core drilling at E57/1128 confirmed the presence of sheared mafic-ultramafic bedrock under cover along an east-southeast trending structure that flares offshore from the Youanmi shear near the Penny gold mine and makes this trend prospective for gold and the base. metal mineralization. Anomalous rare earth elements (REE) have been detected in several holes (see ASX press release dated May 31, 2022). Follow-up RC drilling is planned to explore the extent of the REE mineralized zone.

HENDERSON LITHIUM-GOLD-NICKEL PROJECT

The Mt Ida/Ularring greenstone belt is recognized as an emerging lithium province following the discovery of spodumene-rich lithium pegmatites near the Mt Ida gold mine, located approximately 15 km northwest of the Henderson project . Historical geological mapping and recent Venus fieldwork have identified pegmatite dykes cutting across the greenstone sequence. The Emerald SE zone has a relatively high density of outcropping LCT pegmatites with a lithium content greater than 100 ppm LiO2, including a maximum assay of 5.8% LiO2 from a 1 m wide narrow pegmatite.

YOUANMI VANADIUM PROJECT

A comprehensive hydrometallurgical study to develop an integrated flow sheet for the extraction of vanadium, iron and titanium was conducted by the Hydrometallurgical Research Group (HRG) at Murdoch University, Western Australia.

*To view the full annual report, please visit:
https://abnnewswire.net/lnk/K67260T5

About Venus Metals Corporation Limited:

Venus Metals Corporation Limited (ASX:VMC) is a Western Australia-based company focused on gold, base metals, vanadium and lithium exploration projects. The Company aims to increase shareholder value through the success of targeted exploration on its projects.

The Company’s principal gold project is the Youanmi gold mine, located 500 km northeast of Perth. The Youanmi gold mine is now jointly owned by Venus Metals (30%) and Rox Resources Limited (70%); Indicated and inferred resources at the mine exceed 3 million ounces of gold.

Source:
Venus Metals Corporation Limited

Contact:

Matt Hogan
Managing Director
Venus Metals Corporation Limited
Tel: +61 8 9321 7541
 
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College founds tech company to bring mobility to kids https://sailtheory.com/college-founds-tech-company-to-bring-mobility-to-kids/ Mon, 26 Sep 2022 22:03:26 +0000 https://sailtheory.com/college-founds-tech-company-to-bring-mobility-to-kids/ Current and former Ithaca College faculty members founded a company called Moving support to research, build and distribute technology in hopes of bringing mobility to young children with reduced mobility disabled. Carole Dennis, co-founder of Assistance in Motion and professor emeritus in the Department of Occupational Therapy (OT), and Sharon Stansfield, the other co-founder and […]]]>

Current and former Ithaca College faculty members founded a company called Moving support to research, build and distribute technology in hopes of bringing mobility to young children with reduced mobility disabled.

Carole Dennis, co-founder of Assistance in Motion and professor emeritus in the Department of Occupational Therapy (OT), and Sharon Stansfield, the other co-founder and professor in the Department of Computer Science, began their research at the college in 2001, with a grant from the National Science Foundation (NSF), to fill the void they noticed in mobility aids for motorized infants and toddlers disabled. Dennis said the research team has also included more than 60 students over the years.

Dennis said the technology that already exists to help infants and toddlers was joystick operated and she wanted to make something more accessible. She said infants and toddlers often lack the ability to use gamepads, especially motorized children. disabledmaking current robotic solutions ineffective.

“Kids learn so much from… exploration,” Dennis said. “[The inaccessibility] just frustrated me as an occupational therapist. … It would make sense, we think, for children [with disabilities] to have mobility from the start of babies’ normal development.

Dennis said their solution is the WeeBot, a hands-free robot that infants and toddlers can sit on and control with small changes to the seat. She said that because the robot doesn’t require a switch or gamepad, children can reach objects and interact with people when using it. Babies as young as five months old can control the WeeBot, and once children learn to use it, Dennis said the movements increase dramatically.

“Our motivation is to help these children,” Dennis said. “They can control the world they live in through their mobility. [Otherwise] children with disabilities… sit pretty much in the same place, and the world comes to them.

According to Centers for Disaster Control and Preventionthe most common form of engine disability is cerebral palsy, which affects up to 0.4% – or about one in 345 people – of children. According to University of Melbourneother engine disabled that can affect children include spinal cord injury, muscular dystrophy and spina bifida.

Dennis said other faculty at the college have been involved in the research from the earliest stages, including Julie Dorsey, professor and chair of the Department of Occupational Therapy. Dorsey said her eldest child, who was nine months old in the fall of 2009, was the first child to test the WeeBot.

“[Dennis] I knew I had a small one and asked if I would be willing to bring it in for testing,” Dorsey said. “As a parent bringing a child… [I remember] to be really impressed with how the students participated in the research, even at the beginning.

Dorsey said he learned from researchers how infants explore their environment and how to make learning accessible.

“It was really impressive to see the students and their level of commitment to research,” Dorsey said. “Everyone has to be flexible and creative.”

Madeline Smith ’10 began working on research with Stansfield in the summer of 2009 through an NSFfunded internship while completing her undergraduate studies in computer science.

« Get involved in research in Ithaca [College] totally changed the direction of my life,” Smith said. “Seeing that I could use my technical computer skills on projects that could help people…was really exciting for me.”

Smith said she was part of a research team with two other students, where they did background research, literature reviews, and brainstormed and tested solutions for the Weebot.

“It was really a collaborative project… understanding the problem and the technology,” Smith said. “As a group, we came up with the concept to test different control methods.”

Smith said the WeeBot’s training system was inspired by the Wii balance boarda platform capable of detecting weight changes when connected to Wii games.

“One of the students said, ‘I think the Wii Board could do everything [the movements]’…that’s how we started with a research prototype,’ Dennis said. “We could not have completed our research without the support of the students.

In 2019, Dennis and Stansfield asked Chuck Schwerin, general manager of business services for Tompkins County Area Development, to be their business mentor. The two professors formed the company, Assistance in Motion, in January 2020 and Dennis said she retired from college at the end of 2020.

Dennis said there were issues with the initial prototype, such as affordability and accessibility. The robot worked, but it cost $1,300 to assemble a robot, and Dennis said their goal was to make the robot financially accessible to families. The robot also got stuck in corners and was difficult to transport due to its size.

Dennis said they needed a second prototype, which requires additional funding. Between 2001 and 2020, Dennis and Stansfield received over $700,000 in grants from the NSF, Cornell I-Corps, and the New York Physical Therapy Association. Their most recent grant was from the NSF for $256,000, which will be used to fund the new WeeBot prototype.

“[The college] was very supportive of the research, especially between grants, when the project might have stopped,” Stansfield said.

Dennis said the next steps for Assistance in Motion involve meeting with engineers and other qualified professionals to complement Dennis and Stansfield’s skills. Stansfield said once they have a better prototype, they will either sell the robots themselves or find another organization to sell them.

“We’re in it until it looks like it’s getting to the kids who need it,” Stansfield said. “That was the whole point from the start.”

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Mars once had glaciers – but low gravity has made them stranger than anything we know https://sailtheory.com/mars-once-had-glaciers-but-low-gravity-has-made-them-stranger-than-anything-we-know/ Sat, 24 Sep 2022 19:00:25 +0000 https://sailtheory.com/mars-once-had-glaciers-but-low-gravity-has-made-them-stranger-than-anything-we-know/ On earth, changes in our climate have caused glaciers to advance and retreat throughout our geological history (known as the Ice Ages and Interglacials). The movement of these glaciers carved features on the surface including U-shaped valleys, hanging valleys and fjords. These features are missing on Mars, leading scientists to conclude that all glaciers on […]]]>

On earth, changes in our climate have caused glaciers to advance and retreat throughout our geological history (known as the Ice Ages and Interglacials). The movement of these glaciers carved features on the surface including U-shaped valleys, hanging valleys and fjords. These features are missing on Mars, leading scientists to conclude that all glaciers on its surface in the distant past were stationary. However, new research by a team of American and French planetary scientists suggests that Mars’ glaciers moved slower than those on Earth.

The research was conducted by a team of geologists and planetary scientists from the School of Earth and Space Exploration (SESE) at Arizona State University (ASU) and the Laboratory of Planetology and Geosciences (LPG) at the University of Nantes in France. The study was led by SESE (currently LPG) 2018 Exploration Fellow Anna Grau Galofre, who was a postdoctoral fellow at ASU when it was conducted. The study, titled “Valley Networks and the Record of Glaciation on Ancient Mars”, recently appeared in the Geophysical Research Letters.

Due to Mars’ unique conditions, its ancient glaciers likely sank very slowly, according to a new study in the Geophysical Research Letters.NASA/JPL-Caltech/UofA

According to the USGS definition, a glacier is “a large, perennial accumulation of crystalline ice, snow, rock, sediment, and often liquid water that originates on land and moves downward beneath the surface. influence of its own weight and gravity”. The key word here is moves, resulting from meltwater accumulating beneath the ice cap and lubricating its downward passage through the landscape. On Earth, glaciers have steadily advanced and retreated for eons, leaving rocks and debris in their wake and carving features on the surface.

For the purposes of their study, Galofre and his colleagues modeled how Martian gravity would affect the feedback between how fast an ice cap is moving and how water flows beneath it. Faster water drainage would increase friction between rock and ice, leaving channels under the ice that would likely persist over time. The absence of these U-shaped valleys means that the ice sheets on Mars likely moved and eroded the ground beneath them at extremely slow rates compared to what happens on Earth. However, scientists have found other geological traces that suggest there was glacial activity on Mars in the past.

These include long, narrow, winding ridges composed of layered sand and gravel (eskers) and other features that may be the result of subglacial channels. Said Galofre in a recent AGUNews press release:

“Ice is incredibly non-linear. Feedbacks linking glacial movement, glacial drainage and glacial erosion would result in fundamentally different landscapes related to the presence of water under ancient ice sheets on Earth and on Mars. Whereas on Earth you would have drumlins, lineations, scour marks and moraines, on Mars you would tend to have channels and esker ridges under an ice cap with exactly the same characteristics.

In the past, glaciers may have existed on the surface of Mars, providing meltwater during the summer to create the features we see today.NASA/JPL-Caltech/ESA

To determine whether Mars experienced glacial activity in the past, Grau Galofre and his colleagues modeled the dynamics of two ice caps on Earth and Mars that had the same thickness, temperature, and subglacial water availability. They then adapted the physical framework and the dynamics of ice flows that describe the drainage of water under the ground aquifers to Martian conditions. From there, they learned how subglacial drainage would evolve on Mars, what effects it would have on the rate at which glaciers would slide over the landscape, and the erosion it would cause.

These findings demonstrate how glacial ice on Mars would drain meltwater much more efficiently than glaciers on Earth. This would largely prevent lubrication at the base of the ice sheets, leading to faster rates of slippage and increased glacial erosion. In short, their study demonstrated that linear landforms on Earth associated with glacial activity would not have had time to develop on Mars. Said Grau Galofre:

“In moving from an early Mars with the presence of surface liquid water, extensive ice caps and volcanism to the global cryosphere that Mars currently is, the interaction between ice masses and basal water must have It’s just very hard to believe that in 4 billion years of planetary history, Mars never developed the conditions to grow ice caps with the presence of water. subglacial, as it is a planet with a large inventory of water, large topographic variations, the presence of both liquid and frozen water, volcanism, [and is] located farther from the Sun than the Earth.

In addition to explaining why Mars lacks certain glacial features, the work also has implications for the possibility of life on Mars and whether that life could survive the transition to a global cryosphere that we see today. According to the authors, an ice cap could provide a stable water supply, protection and stability to any subglacial water body where life might have emerged. They would also protect against solar and cosmic radiation (in the absence of a magnetic field) and would insulate against extreme temperature variations.

Mineral map of Mars showing the presence of plates formed in the presence of water.ESA

These findings are part of a growing body of evidence that life existed on Mars and survived long enough to leave evidence of its existence. This also indicates that missions like Curiosity and Perseverance, who will be joined by ESA Rosalind Franklin rover and other robotic explorers in the near future, are looking in the right places. Where water once flowed in the presence of slowly retreating glaciers, microbial life forms that emerged when Mars was warm and humid (about 4 billion years ago) may have persisted as the planet grew colder and colder. was drying out.

These findings may also bolster speculation that as this transition progressed and much of Mars’ surface water retreated underground, potential surface life followed. As such, future missions to investigate the vast aqueous mineral deposits of Mars (recently mapped by ESA) may be the ones that finally find evidence of life on Mars today!

This article was originally published on Universe today by Matt Williams. Read the original article here.

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Independent Global Research Company Names Cyclone Robotics a Leader in Robotic Process Automation in China https://sailtheory.com/independent-global-research-company-names-cyclone-robotics-a-leader-in-robotic-process-automation-in-china/ Fri, 23 Sep 2022 01:00:00 +0000 https://sailtheory.com/independent-global-research-company-names-cyclone-robotics-a-leader-in-robotic-process-automation-in-china/ SINGAPORE, September 23, 2022 /PRNewswire/ — Cyclonee Robotics was named a Leader in Robotic Process Automation (RPA) in The Forrester Wave™: Robotic Process Automation In China, Q3 2022 by independent market research firm Forrester Research. According to Forrester, The Forrester Wave: Robotics Process Automation in ChinaCyclone Robotics received the highest score in the Current Offering […]]]>

SINGAPORE, September 23, 2022 /PRNewswire/ — Cyclonee Robotics was named a Leader in Robotic Process Automation (RPA) in The Forrester Wave™: Robotic Process Automation In China, Q3 2022 by independent market research firm Forrester Research.

According to Forrester, The Forrester Wave: Robotics Process Automation in ChinaCyclone Robotics received the highest score in the Current Offering category and top three in the Strategy and Market Presence categories.

For this report, Forrester evaluated the top 11 RPA vendors by China. Forrester evaluated the companies in three categories (current offering, strategy, and market presence) out of a total of 26 criteria. Cyclone Robotics received the highest score (4.71 out of 5) in the Current Offer category.

The Forrester Wave report also noted that Cyclone Robotics received the highest possible scores (5 out of 5) in 20 criteria, including discovery, bot ideation, portfolio, and ROI; Design and development of robots; product vision; Performance; Supporting Products and Services; Turnover and average transaction size.

According to the Forrester Wave report, Cyclone Robotics has repeatedly demonstrated innovation in automation with innovative features for bot repair, performance enhancement and citizen developers.

According to Forrester, many Chinese companies have succeeded in freeing up their employees to work on higher value tasks by adopting automation processes. The Forrester report also highlights that Cyclone Robotics has succeeded in setting the tone in functionality and breath-taking for enterprise solutions and has expanded its coverage to include process mining, human-machine collaboration and project management. automation. Cyclone Robotics is also praised for having a clear go-to-market strategy for companies of different sizes and a well-defined growth plan for its customers.

Cyclone Robotics believes that this recognition by Forrester places the company in an excellent position to China and intends to grow its global footprint aggressively.

“We are thrilled to receive this recognition from Forrester, one of the world’s top research firms with strong credibility. We think this speaks volumes about our commitment to continue pushing the boundaries of RPA as an industry leader with a customer-centric mindset. We will continue to grow our global footprint by leveraging our diverse experience across a multitude of industries to help our clients transform and modernize their business. ” said Vincent GaoFounder and CEO of Cyclone Robotics.

Since its inception in 2015, Cyclone Robotics has rapidly grown as a leading RPA provider and thought leader in hyperautomation technologies, boasting a remarkable average growth rate of 400% since 2019. The company has very strong corporate credentials, especially among large corporate clients. in China. Cyclone Robotics has a prestigious range of clients such as State Grid Corporation of China, Bank of China, China PostChina Southern Airlines, chinese union salary and Volvo. By helping customers establish an automation governance structure, Cyclone Robotics enables customers to extend automation from initial routine task automation to process automation and orchestration.

Cyclone Robotics RPA software is scalable and should appeal to professionals and developers alike. The company’s RPA software offers advanced automation support, infused with artificial intelligence content analysis as well as features that target business users and various other support departments.

A free copy of The Forrester Wave™: Robotic Process Automation in Chinathe Q3 2022 report is available here.

About Cyclone Robotics
Founded in 2015, Cyclone Robotics is a leading global RPA provider and thought leader in hyperautomation with an average annual growth rate of 400% since 2019. The company now has more than 800 employees across 24 subsidiaries and branches around the world, serving more than 1,000 global customers. In early 2021, Cyclone Robotics established its Singapore branch as ASEAN headquarters office for Asia Pacific expansion to empower ASEAN businesses, JapanANZ and the Middle East, across a wide variety of industries to accelerate their digital transformation efforts with Cyclone’s comprehensive portfolio of RPA products and services. The company has also set up its European headquarters in Londonand new branches in Indonesia and amsterdam this year to further strengthen its global presence in America and the European market. Its explosive business growth, advanced technology, strong team, advanced product ideas and ability to seize business opportunities have been highly recognized by investors and international authorities. Still favored by frontline capital, Cyclone Robotics has won $150 million in Series C financing in November 2021setting a record for the highest single funding in the RPA industry in China.

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Researchers fear Santos gas exploration could affect ‘life-saving’ koala study https://sailtheory.com/researchers-fear-santos-gas-exploration-could-affect-life-saving-koala-study/ Tue, 20 Sep 2022 22:16:01 +0000 https://sailtheory.com/researchers-fear-santos-gas-exploration-could-affect-life-saving-koala-study/ Researchers testing a potentially game-changing chlamydia vaccine for koalas fear their results could be compromised if a gas company is allowed to explore the area. Key points: Santos has asked to undertake seismic testing on the plains of Liverpool in New South Wales The area is home to nearly 50 koalas that are part of […]]]>

Researchers testing a potentially game-changing chlamydia vaccine for koalas fear their results could be compromised if a gas company is allowed to explore the area.

Santos, the company behind the Narrabri gas project, holds oil exploration licenses in the plains near Liverpool in northwestern New South Wales.

He asked to undertake seismic testing, which uses reflected sound waves to map the structure of rocks beneath the ground.

University of Sydney researcher Valentina Mella said the vaccine trial had “saved lives”.

Dr Mella said 46 of the 50 koalas in the study lived in areas that Santos had set aside for seismic testing.

“There are no studies that really show whether these types of surveys can affect koalas,” Dr. Mella said.

She said she was very concerned about the potential of seismic shocks to induce a stress response.

“Any type of interference that is unnatural can affect results,” Dr. Mella said.

“We don’t know how stress affects immune responses.”

A potential rebound

Dr Mella said the vaccine could be a turning point for koala survival.

“Once these animals are sterile, they don’t produce any more offspring, and that’s it,” she said.

Valentina Mella and Rob Frend have worked on koala issues for over a decade.(Provided)

Gunnedah farmer and koala advocate Rob Frend said chlamydia was a major driver of extinction among locals.

He said seismic testing was an intrusion they could do without.

“It’s another foreign intervention,” Mr Frend said.

“It may be completely harmless, but you can’t be absolute about these things.”

He urged the company to prioritize the local environment in all activity.

“If Santos management doesn’t listen to the farmers, maybe the shareholders will,” Frend said.

Application under review

In a statement, the NSW Resources Regulator confirmed it had received a request from Santos to conduct a seismic survey.

“The regulator will consider consideration of environmental factors as part of its assessment,” said chief executive Peter Day.

A Santos spokesperson told the ABC that the company did not expect its tests to have any effects on local wildlife.

“The seismic surveys are low-impact and non-intrusive,” they said in a statement.

The company said it appreciates the importance of the vaccine trial.

“Santos … will conduct our business in a way that does not endanger research or koalas,” the spokesperson said.

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Astrophysics: Stellar childhood shapes stellar evolution https://sailtheory.com/astrophysics-stellar-childhood-shapes-stellar-evolution/ Mon, 19 Sep 2022 10:28:00 +0000 https://sailtheory.com/astrophysics-stellar-childhood-shapes-stellar-evolution/ In classical models of stellar evolution, until now little importance has been attached to the early evolution of stars. Thomas Steindl of the Institute of Astrophysics and Particle Physics at the University of Innsbruck now shows for the first time that the biography of stars is indeed shaped by their early stage. The study was […]]]>

In classical models of stellar evolution, until now little importance has been attached to the early evolution of stars. Thomas Steindl of the Institute of Astrophysics and Particle Physics at the University of Innsbruck now shows for the first time that the biography of stars is indeed shaped by their early stage. The study was published in Nature Communications.

From babies to teenagers: Stars in their “younger years” are a major challenge for science. The process of star formation is particularly complex and difficult to map in theoretical models. One of the few ways to learn more about the formation, structure or age of stars is to observe their oscillations. “Comparable to exploring the interior of the Earth using seismology, we can also make statements about their internal structure and thus also about the age of stars based on their oscillations,” says Konstanze Zwintz. . The astronomer is considered a pioneer in the young field of asteroseismology and heads the research group “Stellar Evolution and Asteroseismology” at the Institute for Astro- and Particle Physics at the University of Innsbruck. The study of stellar oscillations has evolved considerably in recent years as the possibilities for precise observation through telescopes in space such as TESS, Kepler and James Webb have improved on several levels. These advances also shed new light on decades-old theories of stellar evolution.

The young star in the center is in a molecular cloud and is enveloped by a disk. In the early stages of its life, the star attracts many materials, for example through magnetic fields, which constantly remix in the turbulence. The interior of the young star is permeated with pulsations.

Created by Mirjana Keser.

The blue line shows the evolution of a star before the transition to the main sequence (blue point) according to the classical models applied since the 1950s. The white line represents the realistic representation resulting from the new model of Thomas Steindl – the years “ wild” of the star from childhood to adolescence, with the evolution from right to left in the image.

With a new zero hour model of adult stars

Stars are called “children” as long as they do not yet burn hydrogen into helium in their core. At this point, they’re on the pre-main sequence; after ignition, they become adults and move on to the main sequence. “Until now, stellar research has mainly focused on adult stars – like our Sun,” says Thomas Steindl, a member of Konstanze Zwintz’s research group and lead author of the study. “Although it seems counter-intuitive at first sight, until now little attention has been paid to the evolution of the pre-main sequence because the phase is very turbulent and difficult to model. Only technological advances in these recent years allow us to take a closer look at the childhood of stars – and thus that moment when the star begins to fuse hydrogen into helium.In their current study, the two Innsbruck researchers now present a model that can be used to realistically represent the early stages of a star’s life long before it becomes an adult. The model is based on the open-source stellar evolution program MESA (Modules for Experiments in Stellar Astrophysics). Inspired by a lecture given by astronomer Eduard Vorobyov of the University of Vienna at a meeting in 2019, Thomas Steindl spent months refining the method of using this stellar evolution code to recreate the phase chaotic early star formation and then predict their specific oscillations. “Our data shows that pre-main sequence stars follow a very chaotic course in their evolution. Despite its complexity, we can now use it in our new theoretical model. said Steindl. Thus, the astronomer shows that the way the star forms has an impact on the oscillation behavior even after the ignition of nuclear fusion on the main sequence: “Childhood has an influence on the later pulsations of star: This seems very simple, but it was strongly questioned. Conventional theory assumes that the time before ignition is simply irrelevant. This is not true: comparable to a musical instrument, even subtle differences in composition lead to significant changes in tone. Thus, our modern models better describe the oscillations of real stars.

Konstanze Zwintz is delighted with this discovery and is very optimistic about the future: “I was already convinced about twenty years ago, when I saw for the first time the oscillation of a young star before me on the screen, that I could one day prove the importance of early stellar evolution on the “adult” star. Thanks to the excellent work of Thomas Steindl, we have now succeeded: definitely a eureka moment for our research group and another important step for a better understanding of the growth stages of stars. »

Publication:

The imprint of star formation on stellar pulsations. Thomas Steindl, Konstanze Zwintz, Eduard Vorobyov. Communication Nature 2022

DOI: 10.1038/s41467-022-32882-0

https://www.nature.com/articles/s41467-022-32882-0

/Public release. This material from the original organization/authors may be ad hoc in nature, edited for clarity, style and length. The views and opinions expressed are those of the author or authors. See in full here.

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10-day deep-sea exploration in the Indian Ocean comes to an end https://sailtheory.com/10-day-deep-sea-exploration-in-the-indian-ocean-comes-to-an-end/ Sat, 17 Sep 2022 15:18:00 +0000 https://sailtheory.com/10-day-deep-sea-exploration-in-the-indian-ocean-comes-to-an-end/ The first phase of the multilateral deep-sea scientific expedition to explore the biodiversity of the twilight zone of the Indian Ocean ended on Friday. India was represented in the 10-day expedition by marine scientists from the Center for Marine Living Resources and Ecology of the Ministry of Earth Sciences, based in Kochi. Researchers explored deep-sea […]]]>

The first phase of the multilateral deep-sea scientific expedition to explore the biodiversity of the twilight zone of the Indian Ocean ended on Friday.

India was represented in the 10-day expedition by marine scientists from the Center for Marine Living Resources and Ecology of the Ministry of Earth Sciences, based in Kochi. Researchers explored deep-sea biodiversity aboard a UK-based research vessel, the Odyssey.

The twilight zone is considered the most productive zone of the ocean in the depth range of 200 meters to 800 meters. However, it was a less explored area in terms of biodiversity, the researchers said.

During the expedition, environmental DNA analysis and deep-sea submersibles were tested and demonstrated in the northern Indian Ocean using an underwater camera, the underwater vehicle to baited distance. The Indian delegation was composed of researchers N. Saravanane, Sherine Cubelio and Sendhil Kumar.

Apart from Indian scientists, researchers from the UK, Maldives and Sri Lanka took part in the underwater expedition which took place at an ocean depth of 1,000 meters. The expedition was of scientific relevance given the Deep Ocean Mission launched by the ministry, the researchers said.

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China is going to the moon. Biden moans at MAGA https://sailtheory.com/china-is-going-to-the-moon-biden-moans-at-maga/ Mon, 12 Sep 2022 10:49:41 +0000 https://sailtheory.com/china-is-going-to-the-moon-biden-moans-at-maga/ OPINION: China has just announced that it is planning three missions to the Moon after discovering a new mineral, Changesite-(Y), which could be the future of global energy. President Joe Biden? Oh, well, he actively attacks Donald Trump supporters and calls some American conservatives enemies of the state and dangers to society, etc. So there […]]]>

China has just announced that it is planning three missions to the Moon after discovering a new mineral, Changesite-(Y), which could be the future of global energy.

President Joe Biden?

Oh, well, he actively attacks Donald Trump supporters and calls some American conservatives enemies of the state and dangers to society, etc. So there is this.

It’s almost as if the Biden team is working hand in hand with the Chinese to take advantage of it – the Chinese.

“China plans more lunar missions after finding new lunar mineral,” Bloomberg wrote.

“China discovers new mineral – and possible energy source – on the Moon,” New Atlas wrote.

“Lunar Exploration: Senior Officials Say Moon Samples Made Key Breakthrough in Chinese Space Science Research,” CGTN wrote.

“Great discovery on the Moon! China claims to become the 3rd country to ever discover a new mineral on the lunar surface,” wrote the Eurasian Times.

True? Not true?

In the rapidly changing geopolitical scene, perception plays an important role in shaping policy. Whoever proves to be the strongest is in many cases almost tantamount to saying that he is the strongest. It used to be America; it was once America’s gift. Everyone wanted to know what America was thinking, what America was doing, what America would think and do, as preconditions for forming its own sovereign judgments.

Thanks to Biden, America has slipped into this role.

Remember this?

“American prestige has been stuck in Afghanistan,” as Europac noted in August 2021.

How about that?

“The U.S. dollar is losing its luster as a reserve currency as the greenback’s share of global reserves hits a 25-year low,” as Kitco News wrote in May 2021.

This article went on to explain how “the reach of the US dollar as a global reserve currency is shrinking as central banks around the world reduce the share of US dollar reserves, according to the International Monetary Fund”.

Then there’s always this – the must-see Joe Biden special: “The world ‘laughs’ at Joe Biden”, from Sky News Australia in September 2021, and “Biden’s gaffe at G-7 summit makes leaders laugh world”. from the New York Post in June 2021, and “Biden shakes hands in sophistication after North Carolina speech,” from the New York Post in April 2022.

Stop that.

But it’s the Biden climate change bill that gives between $370 billion and $400 billion in taxes for emissions reduction efforts that really bites the big one. The more Biden pushes electric vehicles, the more China cheers. The more Biden pushes alternative energy sources, the more China gets carried away.

Most rare earth elements for electric vehicles, wind turbines and other green energy products are controlled by China.

The greener America becomes, the more powerful and influential China becomes – and the weaker and less influential America becomes.

America was once the nation of space exploration, energy dominance and independence – of bold creativity, ingenuity and ambition.

“As the space race between China and the United States intensifies, Chinese scientists have made a key discovery on the Moon that could catapult it to an elite group of countries that only includes states States and Russia,” wrote the Eurasian Times.

Expect more headlines, more reporting, like the one under this Biden administration.

• Cheryl Chumley can be reached at cchumley@washingtontimes.com or on Twitter, @ckchumley. Listen to his “Bold and Blunt” podcast by clicking HERE. And never miss his column; subscribe to his newsletter and his podcast by clicking HERE. His latest book, “Lockdown: The Socialist Plan To Take Away Your Freedom,” is available by clicking HERE or by clicking HERE or by CLICKING HERE.

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NASA Hosts National Space Council Meeting, Vice President Chairs Event https://sailtheory.com/nasa-hosts-national-space-council-meeting-vice-president-chairs-event/ Sat, 10 Sep 2022 02:28:00 +0000 https://sailtheory.com/nasa-hosts-national-space-council-meeting-vice-president-chairs-event/ WASHINGTON, September 9, 2022 /PRNewswire/ — Vice President Kamala Harris stressed the importance of climate, human spaceflight and STEM education during the second meeting of the Biden-Harris administration’s National Space Council on Friday, held at the Johnson Space Center in the NASA at Houston. Meeting of the National Space Council led by the President, Vice […]]]>

WASHINGTON, September 9, 2022 /PRNewswire/ — Vice President Kamala Harris stressed the importance of climate, human spaceflight and STEM education during the second meeting of the Biden-Harris administration’s National Space Council on Friday, held at the Johnson Space Center in the NASA at Houston.

“For generations, along with our allies and partners around the world, America has led our world in the exploration and use of space,” Harris said. “Our leadership has been guided by a set of fundamental principles – cooperation, security, ambition and public trust – which is the recognition, of course, that space can and should be protected for the benefit of all. There is so much of things we still don’t know and we have yet to do so much – space remains a place of undiscovered and unrealized opportunity Our test and responsibility is to work together to guide humanity towards this new frontier and to make real the incredible potential of space for everyone.”

For more than 50 years, NASA satellites have provided open source, publicly available data about Earth’s land, water, temperature, weather, and climate. Improving access to key climate information is a priority for the agency. Building on his earlier announcement, NASA Administrator Bill Nelson released the first concept and shared a new video for the Earth Information Center. The center will allow the public to see how the Earth is changing and guide decision makers to mitigate, adapt and respond to climate change.

“Just as we use Mission Control to monitor operations during spaceflight, we are embarking on this effort to monitor conditions here on our home planet, and it will be available to everyone in an easy-to-access format.” , Nelson said.

Planning for the Earth Information Center is underway with the initial phase providing an interactive visual display of imagery and data from NASA and other government agencies. NASA Headquarters plans to host this initial interactive display with the goal of expanding in-person and virtual access over the next five years.

The Vice President also highlighted the important research being conducted on the International Space Station that will enable long-duration stays on the Moon and future human missions to Mars, in addition to the benefits for life here on Earth.

“NASA uses the International Space Station to conduct critical research into the risks associated with future missions to Mars — space radiation, isolation, and distance from Earth, to name a few. ‘test to develop the technologies we will need for a long-term stay on the Moon, where we will build an Artemis base camp on the surface and a Gateway outpost in lunar orbit,’ Nelson said. space demonstrates that the benefits of microgravity are not limited to discovery. We are also developing new technologies that improve life on Earth, such as cancer treatments.”

Alongside the meeting, NASA announced a new Space Grant K-12 Inclusiveness and Diversity in STEM (SG KIDS) opportunity that will award more than $4 million to institutions across the United States to help bring the excitement of NASA and STEM to traditionally underserved and underrepresented groups of middle and high school students. The announcement is part of a broader set of commitments by public, private and philanthropic partners announced by the Vice President to help recruit and develop the next generation of space workforces.

SG KIDS also addresses the White House Executive Order on Promoting Racial Equity and Supporting Underserved Communities through the Federal Government, as well as NASA Administrator by Bill Nelson focus on providing authentic STEM opportunities for K-12 students.

While at NASA’s Johnson Space Center, Vice President Harris toured the agency’s mission control with Nelson and the director of the Johnson Center vanessa wyche. The Vice President also spoke with NASA astronauts Bob Hines, Kjell Lindgrenand Jessica Watkinsliving and working aboard the International Space Station on how their research benefits life on Earth, supports long-duration spaceflight, and protects our planet.

The Vice President also received a tour of the Space Vehicle Mockup Facility (SVMF), where spaceflight crews and their support personnel receive world-class training on high-fidelity hardware for real-time mission support. The SVMF consists of a space station, Orion, utility vehicle mockups, part-task trainers and rack interfaces, precision air running floor and gravity simulator partial.

A recording of the full National Space Council meeting is available online at:

https://go.nasa.gov/3eEGxEW

SOURCENASA

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How terrain evolves on icy comets https://sailtheory.com/how-terrain-evolves-on-icy-comets/ Sun, 04 Sep 2022 22:59:14 +0000 https://sailtheory.com/how-terrain-evolves-on-icy-comets/ Overview of the Imhotep region. (a) The Imhotep region (highlighted in yellow) lies on the large lobe of 67P and has the equator (dotted green line) passing through its northern part. (b) Imhotep consists of a central deposit of smooth terrain bounded by elevated topography on all sides. (c) Shown is the topography surrounding Imhotep […]]]>

Overview of the Imhotep region. (a) The Imhotep region (highlighted in yellow) lies on the large lobe of 67P and has the equator (dotted green line) passing through its northern part. (b) Imhotep consists of a central deposit of smooth terrain bounded by elevated topography on all sides. (c) Shown is the topography surrounding Imhotep viewed from the north of Imhotep. Credit: ESA — European Space Agency, (d) This is a high resolution view of two large boulders in the Smooth Terrain Deposits. The granular nature of the deposit is evidenced by the speckle pattern in the smooth terrains at such resolutions (0.2 m pixel–1).

Cornell University

In preparation for a possible return-in-the-future mission, Cornell University astronomers have shown how smooth terrain – a good place to land a spacecraft and pick up samples – evolves on the icy world of comets.

By applying thermal models to data collected by the Rosetta mission – which overtook the dumbbell-shaped comet 67P/Churyumov-Gerasimenko nearly a decade ago – they show that topography influences the surface activity of the comet for hundreds of meters.

“You can have a uniform surface composition on comets and still have hotspots of activity,” said lead author Abhinav S. Jindal, a graduate student in astronomy and a member of Alexander Hayes’ research group, professor associate degree in astronomy. “Topography is the engine of activity.”

Comets are icy bodies made of dust, rocks and gas left over from the formation of the solar system about 4.6 billion years ago, Jindal said. They form in the outer fringes of the solar system and have spent eternity traversing the dark, cosmic freezer of space, away from the heat of the sun.

“Their chemistry hasn’t changed much since the formation of comets, making them ‘time capsules’ preserving the primordial material from the birth of the solar system,” Jindal said, explaining that these bodies likely seeded early Earth. with water and key building blocks of life.

“As some of these comets have been pulled into the inner solar system,” he said, “their surfaces are undergoing changes. Science is trying to understand the driving processes.

As comet 67P loops toward the sun, the body accelerates to a point called perihelion – its closest approach – and the comet heats up. The Rosetta mission followed the comet as it circled the sun and studied its activity. Smooth terrain is where the most change has been observed, making it essential for capturing surface evolution.

Jindal and the researchers examined the evolution of 16 topographic lows in the Imhotep area – the largest smooth-field deposit on 67P – between June 5, 2015, when activity was first observed, and the December 6, 2015, when the final large-scale changes were observed.

The comet went through a process called sublimation – in which the icy parts turned gaseous in the heat of the sun. The comet’s smooth Imhotep region showed a complex pattern of simultaneous erosion scarps (the steep edges of arc-shaped depressions) and deposition of material.

Jindal believes that science will one day return to comet 67P. “These comets help us answer the question of where we came from,” he said.

The research was published in the Planetary Science Journal.

For more information, see this Cornell Chronicle story.

Topography-influenced evolution of large-scale changes in the Imhotep region of Comet 67P/Churyumov–Gerasimenko

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