Our Sun A Little Slow On the Uptake for Cycle 24

first_img Explore further Citation: Our Sun: A Little Slow On the Uptake for Cycle 24 (2009, April 27) retrieved 18 August 2019 from https://phys.org/news/2009-04-sun-uptake.html Current Image of Sun-April 26, 2009. Via: Mauna Loa Solar Observatory In fact, according to the Hinode (Solar-B) project and the High Altitude Observatory in Boulder, Colorado and other experts on the Sun, Solar Cycle 24 is beginning slowly. Current thinking aided by sophisticated equipment suggest more precise information is needed to connect the Mini Ice Age to low sunspot activity. Some definitions and background are necessary for a full understanding of the propositions advanced.Sunspot Cycles:A sunspot is visible from Earth without the aid of a telescope and is identified as a dark spot on the Sun’s surface. It is a dark spot because it is cooler than the rest of the Sun, with a temperature running 4,000 K compared to the rest of the Sun’s surface material which runs over 5,800 K. The brightness factor of sunspots compared to the rest of the Sun’s surface is relative. A sunspot if excised from the Sun would shine as bright as the Moon. The Sunspot is noted for intense magnetic activity which inhibits convection and results in the reduced temperature.Sunspot Cycles recordings were first made by Chinese astronomers in 800 B.C. Early mystics and astrologers kept track of Sunspots because it was believed the activity of the Sun foretold important events. Soon after the telescope was discovered in the 1600s scientists were able to observe and record the Sun’s 27-day rotation, but there were mixed theories on the spots on the Sun’s surface. Some thought the spots were dark clouds in the atmosphere of the Sun while others thought the spots represented undiscovered planets crossing the Sun’s surface. German astronomer Samuel Schwabe discovered the increase and decrease of yearly sunspot counts in 1843 and guessed the cycle length to be around 10-years. His work was enhanced by French physicists Foucault and Fizeau and they captured the first photographs of the Sun and sunspots in 1845. Their work was followed by the discovery in 1852 that the period of the sunspot cycle coincided with a period of geomagnetic activity on Earth. The Sun-Earth connection was made and the founding of space weather science debuted. A very recent article carried by the BBC called, ‘Quiet Sun Baffling Astronomers’ sent me in a twitter of research activity. The BBC article’s head notes include “The Sun is the Dimmest It Has Been for Nearly A Century” and a suggestion we could be possibly looking at another Maunder Minimum which occurred in the mid-seventeenth century and lasted some 70-years which some believe led to a mini ice age causing havoc throughout North America and Europe.center_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. The period of 1645 to 1715 called the Mauder Minimum is noted for a period where there were very few sunspots and a corresponding bitter cold Winters in Europe and North American. This period on Earth is known as the Little Ice Age. Parenthetically, drawing a direct cause and effect relationship between the two events is the subject of heated debate among scientists. The Medieval Maximum period occurred in 1100 to 1250 marked by unusually warm temperatures on Earth and a very high level of solar activity and sunspots. The Dalton Minimum occurred in the 1800s and is noted for fairly low sunspot activity and cooler temperatures on Earth. Since 1900, with the exception of very recent history, scientists have called the relatively high sunspot count a period called the Modern Maximum. Current Thinking:Cooperation between NASA, EESA, The Royal Swedish Academy of Sciences, HAO, The Max Planck Institute for Solar System Research, Hinode (Solar-B). IAC and counterparts around the globe have de-mystified and almost laid to rest previously advanced ideas about the Sun-Earth link and sunspots. Dr. Peter Gilman’s, the recipient of the prestigious Hale Prize from the American Astronomical Society has spent four-decades researching the Sun’s different rotation discovered what is known as the Butterflydiagrams. This pattern was developed by plotting the sunspots from the Sun’s poles towards its equator during what is considered presently to be the 11-year solar cycle. His collaborative work with Mausumi Dikpati intends to produce a unified theory of the solar cycle and elaborate on his ‘active longitudes’ work where magnetic fields are strong and sunspots recur over time. Other work concludes that during peak sunspot solar cycles a great bundle of plasma escapes from the Sun. This coronal mass ejection. (CME) accelerates through the corona quickly. If it is pointed at the Earth, the CME will irradiate everything in its path, disrupt radio signals, interrupt circuitries in satellites, knock out power grids on Earth and generally create a beautiful disruptive high-altitude auroras. Most experts in the Solar-Earth and Space Weather field agree with HAO, Boulder’s scientists finding in 2004 that more work needs to be done to show a direct correlation between historical data of the various epic low sunspots or high sunspot periods and Earth’s Little Ice Age or Medieval Maximum. It could be a combination of a cold snap and warming trend on Earth in combination with the dormant or active sunspot activity. Research is on going. BBC’s Confusion Over Low Sunspot Period and Global Dimming:A period of low activity in sunspots on the Sun’s surface is not the same as the theory of Global Dimming or the dimming of the Sun. The English Scientist Gerry Stanhill discovered while working in Israel a marked decrease in the amount of sunlight reaching the Earth’s surface. In the USA, a 10-percent decrease, the former Soviet Union, nearly 30-percent and globally a decrease in sunlight reaching Earth. The mainstream opinion on the cause of Global Dimming is the increased presence in the atmosphere of particulate matter and aerosols from burning fossil fuels and other human activity. In the Global Dimming scenario, the polluted matter acts like a mirror reflecting back into the space the Sun’s rays. The effect on Earth is drought, crop damage and potentially harm to human health. In Conclusion:Strong evidence points to a connection between weather on Earth and activity on the Sun. The Hinode (Solar-B) satellite was launched in 2006 from Japan carrying three different telescopes on board and was placed on a heliosynchronous orbit that allows it to track the solar disc and perform detailed observations. Tracking the sunspot cycles began in the early 1700s with what is called Cycle 1. According to the latest from Hinode (Solar-B) log, the current “Cycle 24 is Beginning Slowly”. They reference Cycle 23 which peaked in 2001 and while shorter in duration than most, showed some of the largest Sun flares ever recorded. Some are predicting Cycle 24 is going to be a Hot Tamale (at its peak) when it kicks into gear sometime in 2009 or 2010. For More Info:Hinode Solar-B; solarb.msfc.nasa.gov/ Predicting the Strength of solar cycle 24 using a flux transport; HAO, Boulder Colorado; www.hao.ucar.eduBBC Article; news.bbc.co.uk/2/hi/science/nature/8008473.stm Our Sun: A Little Slow On the Uptake for Cycle 24© 2009 PhysOrg.com The Sun Shows Signs of Lifelast_img read more

HP offers tour of your digital future

first_img(PhysOrg.com) — Never mind that HP Corporate keeps breaking off rudders. Never mind nobody even takes HP’s ability to stay open in the future for granted any more. And, please, never mind that HP, pre-Meg, was to turn its back on hardware and concentrate on software, a decision that is now up in the air. Just ignore the uncertainty and enjoy the view of four device concepts. HP’s creatives are still barreling ahead in their own rowboats while everyone outside HP clucks at the mothership. The HP Curve from top to bottom is an “immersive” design that combines a flat interactive surface with a vertical transparent display and on the side a back to the future inkwell concept of a stylus perched and ready for writing. It is a large tabletop size device that looks far more like a Milan-inspired furniture item, which may explain the HP promotional message of the HP Curve being “designed to be built into a room.” © 2011 PhysOrg.com Explore further Citation: HP offers tour of your digital future (2011, September 29) retrieved 18 August 2019 from https://phys.org/news/2011-09-hp-digital-future.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. The HP Flex, with a see-through screen, is a flexible laptop that the actors in the movie use to control the robots during battle. The Original Noisy Boy Controller was imagined as a dual display flexible laptop that can be used even when closed. Working with the DreamWorks team to create the right look for the concept, the final design turned out to be a clam shell-shaped controller, stylized to match the robot Noisy Boy. HP renames EDS, now HP Enterprise Services A team at HP was asked to help DreamWorks conceptualize technology of the future. The upcoming movie Real Steel with Hugh Jackman inspired HP’s winning ideas; as a not so sneaky preview, HP is showcasing four of its Real Steel technology concepts of what computing will look like in the future. The samples remind us that computing can always find room for beautiful forms for computing.An HP ThruScreen is HP’s way of allowing a user to manipulate and interact with real and virtual objects behind a transparent adjustable screen. You can rotate the screen to place objects behind the screen or below the screen The HP Volume Jet is a 3-D printer crafted as a future iteration of the HP DesignJet 3D. The DreamWorks team and the HP creatives built a Volume Jet prototype but it did not make the final cut. It’s a large desktop surface when it is flat, a notebook when open, and a tablet when loaded, with “ergonomic” grip power.HP has enjoyed a long relationship with DreamWorks. HP and DreamWorks Animation formed a technology partnership in 2001. The partnership between DreamWorks and HP has extended both to the studio’s infrastructure and business divisions.last_img read more

Gas marbles able to roll around in the hand could be used

first_img PausePlay% buffered00:0000:00UnmuteMuteDisable captionsEnable captionsSettingsCaptionsDisabledQuality0SpeedNormalCaptionsGo back to previous menuQualityGo back to previous menuSpeedGo back to previous menu0.5×0.75×Normal1.25×1.5×1.75×2×Exit fullscreenEnter fullscreen Liquid marbles can be caused to move with laser light (w/ Video) Hard outside, soft inside. The plastic shell of a gas marble can withstand at least 10 times atmospheric pressure, with no volume increase. Credit: Y. Timounay/UPE, via Physics Citation: Gas marbles able to roll around in the hand could be used to store gasses (2017, June 7) retrieved 18 August 2019 from https://phys.org/news/2017-06-gas-marbles-gasses.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Explore further © 2017 Phys.orgcenter_img The invention, like many others, came about by accident, the researchers report, as grad student Yousra Timounay was experimenting with the properties of little plastic balls in water. She discovered that when adding soap and using a rectangular mesh to retrieve the balls, a bubble would form just as it did with regular soap bubbles. But the microspheres appeared, too, covering the entire surface of the bubble. She and her colleagues named the result “gas marbles.”Further study of the gas marbles has not revealed the low-level process involved in their formation, though the researchers note that the microspheres were held together as a group by a liquid meniscus due to surface tension. They also found that they could insert a syringe into the marbles without popping them. They found that they could contain air up to 10 times atmospheric pressure before bursting and that they did not grow in size as would be expected. They also found they could reduce the pressure up to 10 times below atmospheric pressure before a marble collapsed—again, with no changes in size of the sphere.The team reports that the gas marbles are strong enough to withstand being rolled around the palm of the hand, so long as it is done carefully. They suggest the gas marbles could possibly be used to force foam to stabilize or to store other gases. The team plans to continue studying the gas marbles starting with experiments designed to better understand the permeability of the spheres to determine which sorts of gases they may hold. They will also be looking into how long the marbles will last under various conditions before the water holding them together evaporates. More information: Yousra Timounay et al, Gas Marbles: Much Stronger than Liquid Marbles, Physical Review Letters (2017). DOI: 10.1103/PhysRevLett.118.228001ABSTRACTEnwrapping liquid droplets with hydrophobic particles allows the manufacture of so-called “liquid marbles” [Aussillous and Quéré Nature (London) 411, 924 (2001); Mahadevan Nature (London)411, 895 (2001)]. The recent intensive research devoted to liquid marbles is justified by their very unusual physical and chemical properties and by their potential for various applications, from microreactors to water storage, including water pollution sensors [Bormashenko Curr. Opin. Colloid Interface Sci. 16, 266 (2011)]. Here we demonstrate that this concept can be successfully applied for encapsulating and protecting small gas pockets within an air environment. Similarly to their liquid counterparts, those new soft-matter objects, that we call “gas marbles,” can sustain external forces. We show that gas marbles are surprisingly tenfold stronger than liquid marbles and, more importantly, they can sustain both positive and negative pressure differences. This magnified strength is shown to originate from the strong cohesive nature of the shell. Those interesting properties could be exploited for imprisoning valuable or polluted gases or for designing new aerated materials. Play The procedure for producing a gas marble. Credit: Y. Timounay et al., Phys. Rev. Lett. (2017) via Physcis (Phys.org)—A trio of researchers with Université Paris-Est has discovered a new type of spherical bubble—called a gas marble, it is similar to bubbles made with soap, but has a coating of much smaller polystyrene microspheres. In their paper published in the journal Physical Review Letters, the team describes how their discovery came about, some of the properties of the spheres, and possible uses for them. Journal information: Physical Review Letterslast_img read more

19 States And DC Sue Administration Over Plan

first_img19 States And DC Sue Administration Over Plan To Detain… Rich Pedroncelli by NPR News Richard Gonzales 8.26.19 6:57pm Nineteen states and the District of Columbia are suing the Trump administration over its plan to pull out of a decades-old court settlement that governs the care of migrant children in federal detention.The federal government has abided by a court agreement known as the Flores settlement since 1997. It says migrant children should be detained in the least restrictive setting possible and only for about 20 days. Last week the Trump administration announced it will soon detain children with their families indefinitely.The states, led by California and Massachusetts, argue that the government is already failing to provide detained children with safe and sanitary conditions. (Earlier this month the 9th U.S. Circuit Court of Appeals ruled that detained children should receive adequate food, clean water and basic hygiene.) Their suit also says the government plan will have a negative long-term impact on the detained children if they are held indefinitely.”This new Trump rule callously puts at risk the safety and well-being of children,” said California Attorney General Xavier Becerra in a statement. “No child deserves to be left in conditions inappropriate and harmful for their age. We’re taking the Trump Administration to court to protect children from the irreparable harm caused by unlawful and unnecessary detention.”The states also say the administration’s plan will result in an expansion of family detention centers that are not licensed by the states. The administration says it will set its own standards for care — in effect, licensing itself.”With this rule, the Trump Administration is paving the way for [Immigration and Customs Enforcement] to imprison innocent children for indefinite periods of time and is attempting to take away the ability of states to stop them,” said Massachusetts Attorney General Maura Healey.Becerra and Healey are Democrats.The Justice Department has not yet responded for a request for comment.Copyright 2019 NPR. To see more, visit NPR.last_img read more

Boom Shankar

first_imgTell us about your journey. I have grown up in a family of music and the arts in general. My grandfather was a composer, professor and played a variety of musical instruments including clarinet and piano. I credit my initial musical interest and development to him, as he was the first one to teach me how to play the clarinet and piano in the western classical style. My family and I devotees of Mata Amritanandamayi, also known as the ‘Amma’. I have grown up playing bhajans at her programs and that was my first introduction to Indian music. Also Read – ‘Playing Jojo was emotionally exhausting’Also, in high school I discovered the Remember Shakti recordings and I was obsessed with all the musicians in the group. I used to listen to the songs over and over again, and play along with the music. That’s when I realized how much I really loved Indian music. I remember making a resolution then that I would study with Hariprasadji, and that’s what exactly what I did after college. He has taught me everything I know about Hindustani music.  I had to drastically change my instrument to play the Indian classical gamaks and harkats, as the clarinet cannot naturally bend pitches that easily. I worked on it for months to get it just right. Also Read – Leslie doing new comedy special with NetflixWhat inspires you to create music, who are your idols?All the Shakti musicians: Hariprasad Chaurasia, Zakir Hussain, Shankar Mahadevan, John McLaughlin. Apart from that, I love AR Rahman, Coldplay, Radiohead, Foster the People, Bon Iver, Kanye West…the list goes on.Tell us about your first break and how the journey has been sinceThe very first video that really started getting attention was Nee Nenaindal with Vidya & Vandana Iyer. We recorded it in Vidya’s dorm room for fun, spontaneously. I haven’t looked back since! Some memorable moments for you?Ah this is a tough one. I have so many! I think my favourite one right now is getting the call from Shankar Mahadevan and him asking me to collaborate! Almost surreal, and such a dream come true.What songs top your playlist?I really like Miguel’s new album. I like the production style and vibe on that album a lot. I’ve been listening to Raghu Dixit’s new album, Jag Changa, really killer stuff. What suggestions would you have for newbies who want to make it big?I’m a bit of a newbie myself! I think what I’ve realized is that it’s important to do music you love. Even if it is contrary to what the popular taste is. There is always an audience for genuine music and soul. And that can only come if you do music that inspires you.What next for you?I’m currently working on an album with very exciting collaborations. It’s all my original compositions and I can’t wait to share it with everyone!What is on the cards for the Storm Festival?I’m working with an excellent set of musicians! It’s going to be a mix of some of my original compositions from my channel, plus some of Shankar Mahadevan’s big hits. Basically, it’s going to be a big, fun jam session. How do you think music festivals will change the way the country perceives music?I think music festivals are great, because they encourage up and coming talent as well as nurture the already established artists. I think it’s a great way for musicians who are just coming into the scene to showcase their work and gain exposure. It broadens the mind and taste of the listener, as there are so many artists from different genres and styles at festivals.last_img read more

Human and heritage

first_imgThe sixth lecture of National Museum that was organised on 30 June talked about India’s need to increase  its human resources in museology amid renewed interest in preservation and propagation of the country’s heritage. The lecture was delivered by Vinod Daniel, AusHeritage Chairman and CEO of the India Vision Institute, Chennai. Daniel pointed out that hired foreign consultancy can facilitate renovation and upgradation of museum exhibits but it also requires skilled staff to lend the mission its desired momentum. Also Read – ‘Playing Jojo was emotionally exhausting’He also noted, ‘India has quite a few of its museums that ideally require 20 to 40 times more the number of employees than it currently engages. It might be a slow process but steps in the direction should yield positive results in India’s heritage conservation which is entering a golden decade’.Daniel also stressed that authorities should give sufficient consideration to local sensitivity while striving to restore lost cultures and highlight regional legends. Museums should consider themselves as custodians and not owners of heritage.last_img read more

India a melting pot of cultures

first_imgA country and its outlook towards the world can be best understood when its culture is explored. India boasts of a rich and diverse cultural heritage that has paved the way for binding the country with other countries in the world beyond trade and politics.With an intention to showcase true Indian tradition, a cultural programme encompassing Indian classical dance was staged for the U S President and other dignitaries at Rashtrapati Bhavan, a day ahead of the Republic Day Parade. The programme was organised by Seher. Also Read – ‘Playing Jojo was emotionally exhausting’“In this era of global inter connectedness where the world is witness to a great deal of homogenisation and eclectic intermingling, a country’s language and culture still provides a durable distinctiveness to a country. India is particularly blessed by its magnificent and legendary diversity of cultures and languages. This makes India virtually unique. It is this uniqueness that we wish to present for the visiting dignitaries on this historic visit to India,” says Sanjeev Bhargava of Seher. Also Read – Leslie doing new comedy special with NetflixThe presentation begun with an invocation from the ancient Rig Veda, a text recognised as a world heritage work. It seeks harmony within variety, oneness amongst disparity, and invokes the well-being of mankind. This is followed by short presentations in each style, the dancers coming together in a rhythmic finale.The programme contained five forms of Indian classical dances (Kathak, Manipuri, Odhisi, Bharatanatyam and Kathakali) that was performed by young and extremely talented dancers.The programme aimed at representing the richness and diversity of Indian culture and Is choreographed by Padmashri award winning dancer Madhavi Mudgal.last_img read more

13yearold allegedly abducted killed by friend and accomplice

first_imgA 13-year-old boy was allegedly abducted and murdered by a 17-year-old juvenile, who was a friend of the victim, and a 28-year-old man in north-east Delhi’s Rohtas Nagar area, police said on Friday.The accused duo, comprising the teenager and one Mohit Chaudhary, who allegedly demanded a ransom amount of Rs 30 lakh from the boy’s family for his safe release, were apprehended by the police. According to the police, at around 10 pm on February 19 that the boy’s father, Chandrashekhar, reported to the police that his son, Jatin, went missing. Around 2 am, they received an SMS from an unknown number in which the alleged abductors demanded a ransom amount of Rs 30 lakh for the boy’s safe release. Also Read – Company director arrested for swindling Rs 345 croreThe police questioned Jatin’s classmates in Dev Public School located in East Rohtak Nagar and some of them said that Jatin was last seen near Shahdara with his teenager friend.Meanwhile, it also emerged that the concerned SIM card, through which the SMS was sent, was issued on a fake identity proof by a vendor at Shahdara. When the police started tracking the whereabouts of the SIM card, they ran into the juvenile and his 28-year-old accomplice.During interrogation, they told the police that they allegedly strangled Jatin to death near the secluded Rathi Mill area on February 19, when they realised that the abduction bid would fail. By the time they sent the SMS to Jatin’s father, who also was a friend of the juvenile’s father, Jatin was already dead, said a police official.The police had registered a case under the Indian Penal Code (IPC) section 363 (kidnapping) following the child’s kidnapping on Thursday. On Friday, the police added the IPC section 364 A (kidnapping for ransom) and 302 (murder), the official added.last_img read more

State govt GTA to develop Hill properties related to Tagore

first_imgDarjeeling: The state government and Gorkhaland Territorial Administration (GTA) will be working together to develop the properties in the Darjeeling, Kurseong and Kalimpong, that are connected to Rabindranath Tagore. The Hills were very close to the bard and many of his immortal works have been penned in the Hills.GTA chairman Binay Tamang, while talking to media persons on the sidelines of Rabindra Jayanti celebration in Mongpu in Kurseong sub-division on Wednesday, stated: “I have requested the state government to declare all properties in Darjeeling, Kurseong and Kalimpong associated with Tagore as Heritage.” Also Read – Heavy rain hits traffic, flightsMongpu, 33km from Darjeeling town, was a favourite destination of Rabindranath Tagore. He visited Mongpu in 1938 on May 21 and stayed till June. In 1939, he stayed there from May 14 till June 17, to return again on September 12 to stay till the first week of November. In 1940, he arrived on April 21 and his birthday was also celebrated there, that year. This was his last visit, as he fell ill and had to return to Kolkata. He had written many a memorable works during his stay at Mongpu, including Chelebela, Nobojatok, Sesh Kotha, Bangla Bhashar Porichoy, Mongpu, Giribas, Sanai, Akash Prodip and Jonmodin.In Mongpu, Tagore used to stay in the house of Manmohan Sen (Husband of Maitreyi Devi). In 1944, the house was converted into a “Rabindra Smrity-bhavan.” Later in 2009, the building was renovated and converted into a “Rabindra Museum.”last_img read more

Five out of eight militant outfits in Assam declared banned State govt

first_imgThere are eight militant outfits in Assam with five of them declared as banned organisations, Panchayat Minister Rockybul Hussain said in the Assembly on Monday.Replying on behalf of Chief Minister Tarun Gogoi who holds the Home portfolio to a question of Ali Hossain (AIUDF), Hussain said the banned organisations are ULFA-Independent, NDFB-Songbijit, Kamatapur Liberation Organisation (KLO), CPI-Maobadi and Harkat-ul-Muzahideen (HuM).The eight underground outfits are ULFA-I, NDFB-S, KLO, CPI-Maobadi, HuM, Karbi Peoples Liberation Tigers (KPLT), Muslim United Liberation Army (MULTA) and Jamaat-ul- Mujahideen- Assam Module (JMB).last_img read more