Hawaiian Vog Where Theres SmokeThere is Something Brewing

first_imgThe Kilauea Volcano located on the Big Island of Hawaii is currently registering an Orange Alert which means the volcano is exhibiting a heightened or elevated risk of eruption or is erupting with minor or no volcanic ash emissions. Of particular concern is Halema’ Uma’ u crater, hvo.wr.usgs.gov/cam3/ and the Pu’ u’ ‘O’ o vent hvo.wr.usgs.gov/cam/index.htm located on the Kilauea Volcano. 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. Citation: Hawaiian Vog: Where There’s Smoke–There is Something Brewing (2008, September 29) retrieved 18 August 2019 from https://phys.org/news/2008-09-hawaiian-vog-smoke-there-brewing.html Image: Volcanic smog and sunglint in the Vanuatu Archipelago Sulfur dioxide emissions from this volcano increased substantially to a range of 1200 to 1700 tonnes per day on September 21, 2008. Additionally lava from the Pu’ u’ ‘O’ o vent has sent lava flowing into the ocean. According to the U.S. Geological Survey, Hawaiian Volcano Observatory a 4.3 magnitude earthquake was registered in the nearby area of at nearby Ka’ena Point. Since this date the Kilauea Summit has registered daily earthquake activity in a range of 1.7 to 2.6 magnitude. USGS scientists Bernard Chouet and Phil Dawson have developed modeling tools and analytic methods for evaluting volcanic activity from Italy to Japan and their expertise is being used to evaluate the recent Kilauea Volcano. Preliminary findings of Chouet and Dawson indicate the VLP (very long period) tremors appear to originate from a rather specific source locations, clustering at sea level or 1 kilometer below the caldera floor. However, at the Northeast corner of Halema’ Uma’ u the range depth is approximately several hundred meters. The tremor bursts appear to be beneath the Halema’ Uma’ u flume which opened on March 19, 2008. Per a communication from Phil Dawson, he states, “I am not able to fully convey the amazement that I feel each day as I watch this sequence unfold.” Visitors are warned not to venture into the lava deltas because of the possibility of explosions. Moreover, the steam plumes rising after lava enters the ocean are highly acidic and contain glass particles. The local Civil Defense website offers updates on lava flows at www.lavainfo.us . Daily updates of Kileaue Volcano are available at hvo.wr.usgs.gov/ . The volcanic pollution or Vog is currently under study by medical professionals and the USGS. Vog is sulfur dioxide and is the result of volcanic eruptions. The volcanic air pollution creates a hazy appearance in the otherwise bucolic environment. The main concern of health officials in Hawaii is the effect Vog is having on the respiratory and pulmonary system of its residents and visitors. Currently, health officials have set up Sulfur Dioxide Alerts in effected areas to warn residents. People with respiratory illnesses and the general population are encouraged to reduce physically challenging activities, drink fluids or stay indoors during high Vog conditions. According to Dr. Elizabeth Tam of the University of Hawaii Medical School, volcanic air pollution may trigger asthma attacks in susceptible patients. Dr. Tam, preliminary results indicate Vog or volcanic pollution will not cause asthma, it can trigger asthma attacks. Dr. Tam and her colleagues are studying the long term effects of Vog on school children. The longitudinal study began six-years ago and will continue until the particular children in the study reach the age of 18. Scientists and volcano watchers alike are keeping a watchful eye on the activities around the Kilauea Volcano. Explore further Halema’ Uma’ u Crater–Kilauea Volcano Credit: USGSlast_img read more

The Asus New Folding EBook Reader

first_img Asus Reveals Their Dual Touchscreen Flipbook and Eee Keyboard At CeBit 2009 E-book readers can store hundreds of digital books, and some of the later devices feature Internet access to download digital newspapers and magazines. The Sony Daily Edition and Amazon Kindle even include a 3G mobile phone Sim card. The prototype was shown at the CeBIT trade show in March this year, and the device will probably be shown at the Consumer Electronics Show in Las Vegas in January 2010. According to the Sunday Times in the UK, the product, dubbed the Eee Reader after the cheap Asus Eee PC netbooks, may be cheaper than Kindle and Sony e-book readers, with the budget version possibly costing as little as $165 in the UK. The launch is reportedly planned for late 2009, but there are no details yet on when it is likely to be released elsewhere, or how much it is likely to cost outside the UK.There are many e-book readers on the market these days, such as those by Amazon (the Kindle series) and Sony, and new players Plastic Logic and iRex plan to launch large-screen readers either late in 2009 or early 2010. All these readers are black and white, but the Asus Eee Reader is expected to feature color touch screens for the first time.While details are still sketchy, it appears the product will be released in two versions: a cheaper budget version, and a more expensive, but still reasonably priced, premium version with more features, such as a webcam, microphone, speaker, and the ability to make calls via Skype. The Eee Reader will have two touch screens joined by a hinged spine, but it is not yet clear whether both budget and premium versions will be dual-screen and full color, or just the premium product.The new device could use the two screens to simulate a normal book, or the second screen could be used as a web browser or a touch-based keypad to allow it to be used like a netbook or laptop. With e-book readers enjoying a growing consumer market, the new product may be just what Asus needs to add an inexpensive e-book reader to its cheap computer products.The Taiwanese company Asus is already a leader in producing inexpensive computers, chips and netbooks, their cheap alternative to laptop computers. Asus products are often the cheapest available, and it seems they intend to adopt the same business plan for their Eee Readers.© 2009 PhysOrg.com Explore further Citation: The Asus New Folding E-Book Reader (2009, September 9) retrieved 18 August 2019 from https://phys.org/news/2009-09-asus-e-book-reader.htmlcenter_img (PhysOrg.com) — Asus has demonstrated a prototype of an e-book reader it is developing. Unlike its competitors, the device resembles a normal book, having two touch screens that will fold up. 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.last_img read more

Some birds may use their feathers to touch

first_img © 2010 PhysOrg.com Citation: Some birds may use their feathers to touch (2010, February 15) retrieved 18 August 2019 from https://phys.org/news/2010-02-birds-feathers.html (PhysOrg.com) — A new study of auklets suggests the birds use their ornamental feathers in much the same way as cats use their whiskers: to feel their surroundings. Explore further Researcher finds amorous avian anointment protects matescenter_img Male and female auklets (Aethia sp.) have elaborate and prominent whiskers or crests of feathers on their heads, and two ornithologists, Professor Ian Jones of Memorial University in St John’s, and Dr Sampath Seneviratne of the University of British Columbia in Vancouver, Canada, wondered why. There are several species of auklets, with different types of head feathers, but both genders sport the ornamental feathers. Auklets breed in dark crevices in rocks, and the researchers made an experimental maze devoid of light and resembling a crevice, and observed the behavior of auklets placed into the maze. They found that birds with more prominent crests bump into things less than those with shorter plumes. When they flattened the feathers in whiskered and crested auklets, they found the birds were 2.5 times more likely to bump their heads than those with unflattened feathers, and the birds with longer crests were more affected than those with naturally shorter crests.Many birds besides auklets have ornamental crests, tail feathers, beards or whiskers, and while ornamental plumage is thought to have functions in advertising sexual availability and prowess, and sometimes for camouflage or as a warning, the researchers thought they could also have a tactile function, being used by the birds to feel their way in the environment. To find out, Jones and Seneviratne compared the ornamentation, lifestyles and habitats of numerous species of non-passerine (non-perching) birds, including penguins, parrots, hummingbirds and pheasants. Dr Seneviratne said they discovered birds living in dark, complex, or crowded environments, or which are active at night are more likely to have facial feathers, and there was a “highly significant correlation” for that trend across all non-perching birds.The scientists think similar feathers on other birds may also have a tactile function, especially in environments where vision is limited, or where there is a greater deal of clutter or objects to avoid. Facial feathers would help the bird avoid damage to its eyes, beak, and eardrums.The results of the study appear in the Animal Behaviour journal. Auklet (Aethia cristatella). Image: Wikimedia Commons 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.last_img read more

Prismpatterned screen brings paradigm shift to 3D displays

first_imgIn the 3D prism-patterned display, the angular prism screen reflects different light pixels to each eye, which creates a sense of depth through parallax. Image credit: Wallen Mphepö, et al. (PhysOrg.com) — A team of engineers from Taiwan seems to have overcome one of the most persistent challenges of 3D display technology, which could enable them to produce a cinematic 3D display with superior quality compared to most current systems. Their proposed design combines a prism-patterned projection screen with advanced projection technology to achieve both high optical efficiency and low image crosstalk — two properties that have been considered mutually exclusive until now. The researchers, led by Wallen Mphepö from National Chiao Tung University in Hsinchu, Taiwan, and Chalmers University of Technology in Göteborg, Sweden, have published their proposed 3D display design in a recent issue of IEEE’s Journal of Display Technology. The new display uses a prism-patterned 3D screen, a technology which has previously been explored to varying degrees of success. In this system, the prism’s angular surfaces reflect light at two different angles, which are received by a viewer’s left and right eyes, creating a sense of depth through parallax. The prism screen can display 3D images to multiple viewers, as long as they are located within a specific distance range from the screen. The system is also autostereoscopic, meaning viewers do not need glasses to see the 3D effects.The key to prism-based 3D displays is that the prism screen must effectively separate the left and right image pixels. To achieve this pixel separation, the researchers worked on defining the prism angles as well as the curvature of the entire screen, which is necessary in order to keep the rays within the viewing zone. To derive the curvature’s coordinates, the researchers used an iterative process, with each new point on the curved surface computed based on the previous points’ locations. The initial results of their simulations showed a large amount of crosstalk between left and right viewing zones, meaning that the right eye could see some residue of the image intended for the left eye, and vice versa. In order to minimize the crosstalk, the researchers reconfigured the prism angles to sharpen the reflected rays’ separation. In addition, they slightly increased the inter-ocular separation (the distance between a viewer’s eyes) from 65 to 70 mm, and moved the viewing location to 1.15 m, 50 mm closer to the screen. These measures reduced the amount of overlap between left and right pixels, virtually eliminating the crosstalk.However, as the engineers note, it’s not the 0% crosstalk that makes the 3D display innovative, but rather the fact that the display also operates at 90% optical efficiency. As Mphepö explained, previous technologies have always assumed that image crosstalk is inversely proportional to optical efficiency. Copyright 2010 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. By increasing the number of prisms per pixel, the 3D prism-patterned display can accommodate many viewers simultaneously without a dramatic loss of resolution. In the version shown here, four prisms per pixel generates 10 3D viewing zones in four rows. Image credit: Wallen Mphepö. More information: Wallen Mphepö, Yi-Pai Huang, Per Rudquist, and Han-Ping Shieh. “An Autostereoscopic 3D Display System Based on Prism Patterned Projection System.” Journal of Display Technology, Vol. 6, No. 3, March 2010. Doi:10.1109/JDT.2009.2034759 Citation: Prism-patterned screen brings paradigm shift to 3D displays (2010, March 23) retrieved 18 August 2019 from https://phys.org/news/2010-03-prism-patterned-screen-paradigm-shift-3d.htmlcenter_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. Latest 3D TV Technology Offers Interactive Control “For our design we made sure that most of the light that comes from the projector and is incident onto our screen is reflected back to the viewers’ eyes with no barrier blocking it, raising the overall optical efficiency of the system,” Mphepö explained. “By designing the prisms to reflect the incident light from the projector to specific pre-computed left and right eye locations at the viewing distances, we obtain a sweet spot where there is maximum separation of left and right pixels. At these locations the left and right pixels don’t mix, thus giving us an area where there is zero crosstalk even though no barrier is actually between the viewer and the screen, in contrast to the parallax barrier autostereoscopic 3D display.”Although the 3D viewing zone is currently somewhat small, the design has another important advantage, in that it can be configured to provide several 3D viewing zones without drastically reducing the image resolution. This ability contrasts with other autostereoscopic 3D displays, such as those that use a parallax barrier and those that are based on a lenticular lens, which is what most of the major manufacturers are using today. In both designs, the method of increasing the number of viewers involves dividing up the pixels among viewers, which decreases each viewer’s image resolution – especially for a large number of viewers.As Mphepö explains, in the prism-based design, the resolution of each individual viewer is reduced by at most only half of the projector’s original resolution, no matter how many viewers are added. Instead of dividing up the pixels, the system increases the number of prisms per pixel to accommodate more viewers. In this way, using only 11 prisms per incident projector pixel, the system can accommodate 100 simultaneous autostereoscopic 3D viewers.“The fabrication process is orders of magnitude simpler, while the number of views that can be generated is much higher and makes cinema autostereoscopic systems more feasible,” Mphepö said. He also added that part of the inspiration for the design came from bouncing off ideas with Professor Michael Bove, Jr., at MIT Media Labs, who is the co-director of The Center for Future Storytelling.The design still needs work in some areas, such as optimizing the system for an inter-ocular distance of 65 mm, which is considered the ideal distance for most viewers. The researchers also plan to increase the stability and size of the 3D viewing zones to allow for more head movement.“There are plans to fabricate a prototype of this version of the system and also the second generation version of the system,” Mphepö said. “We are currently looking for companies to collaborate with in realizing some aspects of the system apart from actually manufacturing it at some point down the road.” “In our design you simultaneously get both the desirable high optical efficiency and desirable low or zero crosstalk,” Mphepö told PhysOrg.com. “This bucks the trend and changes the way standard prevailing autostereoscopic 3D display design assumptions that have been in effect up to this point are to be viewed. In short, they no longer apply.”For instance, as Mphepö explained, a typical autostereoscopic 3D display might use a parallax barrier – a layer of opaque material with slits that is placed in front of the screen, allowing each eye to see a different set of pixels. If the slits are wide, more light can pass through, which increases the optical efficiency. However, wide slits allow more image crosstalk, since each eye sees more light that is intended only for the other eye. On the other hand, making the slits narrower can reduce image crosstalk, but also blocks most of the light, reducing optical efficiency. Thus there is an inherent tradeoff between optical efficiency and crosstalk in such a design. To overcome this problem, the new system replaces the parallax barrier with fine-tuned prisms that, as Mphepö explained, reflect light to create a “sweet spot” with high optical efficiency and virtually no crosstalk. Explore furtherlast_img read more

Battling the big questions

first_imgA zealous young lot enacting a political satire, written by a renowned Hindi playwright make for an alluring offer to visit Sri Ram Centre coming weekend. Lo and behold, as the young and culturally active team of Cinecaste set out to initiate, invigorate and inspire you through their play Hawalaat on 24 May.Considering the brouhaha about India’s demographic dividend, this play is a timely attempt to show the flipside of the entire scenario. Penned by Sarweshwar Dayal Saxena, it’s a mockery of the system that is unable to tap the potential of its most hyped resource- manpower. Explaining the crux of his play, Devesh Nigam, the director says,’ It’s a commentary on the present system of society. How motivated youth becomes a puppet in the hands of authorities- whoever they be- and end up getting baffled without having made any change’. Devesh confides, he witnessed the uproar in people and media at Jantar Mantar and India Gate in the last few years; what he saw inspired him to enact this play for the audience. The hard hitting act is a story that revolves around three boys who are left shelterless, without any food, on one of the coldest night in winters. Here on, a cold reality takes form as they figure out their way through the night. Take a peek into their journey through this night as they comes across and battle with the critical questions facing our society.Mark in your calendars, as Cinecaste brings you a play that mirrors our society.last_img read more

Just push play

first_imgGODDESS GAGGEDHow did the band come together? Where did you gys meet?Goddess Gagged started off as a three piece band majorly influences by Porcupine Tree. It was not until Siddharth and Devesh joined when the band finally came into the picture exactly three years ago ! Where does the name of the band come from?It’s the name of a song by Protest The HeroWhat influences you when you are making music? Who are the musicans you look up to?Porcupine Tree , Protest The Hero of course and  Architects! Also Read – ‘Playing Jojo was emotionally exhausting’What next for your band?The band is playing it’s last gig with Jeremy, their current drummer after which he leaves for MI. Rest of the season is going to be with a surprise drummer! Devesh is leaving for Berklee in January after which the band goes on a hiatus.  How has Delhi treated you guys? How are the Delhi audience?Delhi has been nice! They have accepted our music well. Delhi people are rowdy and we like that!KRAKENHow did the band come together? Where did you gys meet? Also Read – Leslie doing new comedy special with NetflixThe band came together in school with the first lineup. We were an instrumental band until I was asked to join. Then after a lot of lineup changes and copious amounts of tea and hours of laughing our brains out and taking pot shots at each other. Here we are.Where does the name of the band come from?Moses is a huge conspiracy theory fanatic and is a closet cryptozoologist. Hence the name. It’s his homage to what he loves doing in his time being a loner. What influences you when you are making music? Who are the musicans you look up to?We are influenced by everything around us. Everyone in the band brings their own set of experiences into the atmosphere and reflects in the music. I am a design student and the design of how everything around us is systematically put together in some way really comes through our music. Plus we are really different people who understand each other to the core. And we love to trip on each other all the time. So it’s a damn chill atmosphere.What next for your band?Kraken will consume. It’s here to stay. Now it’s time to take up a notch. Hitting the studio right after we finish playing the gig week. How has Delhi treated you guys? Delhi is our favourite place to be. But there are hardly any places where you can play our kind of music so that’s really disheartening. But hopefully more festivals will have us on their bill and we will get more  of such opportunities to play.last_img read more

CID busts petroleum product racket 2 held

first_imgKolkata: The West Bengal CID has busted a racket dealing in supply of a low-priced petroleum product from Birpara in Alipurduar district and arrested two persons, a senior officer of the agency said. Acting on a tip-off, a CID team conducted a raid yesterday night at a petrol pump at Birpara in Alipurduar district, while a tanker was unloading an industrial solvent into an underground reservoir, he said.The industrial solvent was procured from Dankuni and supplied to different pumps, according to preliminary investigation, the officer said.During the raid, one tanker with 7,000 litres of the solvent was seized and two persons were arrested in this connection, he added.last_img

One dead 1 injured in bike accident at Malbazar

first_imgSiliguri: A youth lost his life in a bike accident near Babujoth area in Malbazar.Tuskar Sarkar, a 35-year-old man, was travelling with his friend Mithu Paul (32), the pillion rider, from Odlabari on a bike.The incident took place at around 9:30 pm on Thursday on the state road of Malbazar.Lying in a pool of blood, Sarkar and Paul were noticed by the locals of Dhumshiganra area and taken to Malbazar hospital.Paul was severely injured, while his friend Tuskar Sarkar was declared brought dead when taken to hospital, said a source. The police visited the accident spot and the hospital after being informed by the locals. The family members of the victims, residents of Millan Pally area near Gajoldoba, informed the police that the duo had travelled to Odlabari for some important work.Sarkar’s body had been sent for an autopsy while Paul is under treatment in the hospital at present. Police are trying to find out the exact reason behind the accident.last_img read more

Older adults avoid risktaking due to brain wiring not age

first_imgOlder adults are less inclined to take certain types of risks, such as participating in a lottery, due to changes in brain anatomy rather than age, according to a new study.The finding adds to scientific understanding of decision making and may lead to strategies for modifying changes in risk behaviour as people age.Researchers from the Yale University and the New York University in the US examined the phenomenon in older adults, who experience a natural decline in grey matter volume with age. Also Read – Add new books to your shelfThey studied whether changes in grey matter volume in the posterior parietal cortex or ageing itself, accounted for older adult’s tendency to avoid risk.They presented a series of choices to 52 participants, aged 18 to 88 years. Participants could either receive some money or take their chances with a lottery of varying amounts and probabilities. For example, a participant could choose the certain gain of $5 or opt for a 25 per cent chance of getting $20. Participants were each assigned a number denoting their level of risk tolerance based on their choices. Also Read – Over 2 hours screen time daily will make your kids impulsiveResearchers also measured the gray matter volume in the posterior parietal cortex of each subject, drawn from MRI scans. After analysing the risk choices and MRI measurements, the researchers confirmed that age-related decline in risk tolerance correlates more with changes in brain anatomy than with age.“We found that if we use both the gray matter volume and age together as predictors of risk attitudes, the gray matter volume is significant, while age is not,” said Ifat Levy, associate professor at Yale University. “This means that grey matter volume accounts for age-related changes in risk attitude more than age itself,” said Levy.The finding provides new insight into neurological factors that affect risk preferences and decision making among older adults. It may also lead to strategies for modifying decision making.“We could use this understanding in order to try to, behaviourally or pharmacologically, change flawed decision making,” said Levy.“By understanding the basic processes at the core of complex behavioural changes, we facilitate ways to intervene and improve decision making,” she said.last_img read more

Joynagar shootout Prime accused held

first_imgKolkata: The CID arrested Abdul Mollah, alias Babua, the prime accused in Joynagar shoot out case along with two others inNew Delhi. They will be brought to the city on transit remand on Saturday. With the arrested of these three miscreants, the total number of people arrested in connection with the shoot out case reaches 19. On December 12, 2018, Sarfuddin along with two others were killed near the Indian Oil Petrol pump in Joynagar. The miscreants hurled bombs at Sarfuddin’s car and fired at the vehicle killing him on the spot. Also Read – 3 injured, flight, train services hit as rains lash BengalThe other two died at the hospital later. Biswanath Das, Trinamool Congress MLA, had been travelling with Sarfuddin in the vehicle but he got down before the incident had taken place. Police initially thought that the plot was hatched to eliminate Das. But Sajmal, one of the accused, told police he along with Babua had collected people who were anti-Sarfuddin and a blue print was prepared to kill him. Cops later found that it was a business rivalry which led to the crime. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedActing on a tip off, police raided a house where Babua and his henchmen put up. Babua had left Joynagar after the incident and had been staying in the house since then. They were arrested early on Friday morning. Difference between Sarfuddin and Babua widened after the former developed intimacy with Biswanath Das. Babua thought that this would affect his business and had started picking up criminals and made plans to kill Sarfuddin. Babua was engaged in extortion and illegal selling of land. He was losing his base in the area very fast and thought to make his presence unchallenged, Sarfuddin should be eliminated.last_img read more