Chevy Volts official mileage 93 mpg on electric

first_img Citation: Chevy Volt’s official mileage: 93 mpg on electric (2010, November 25) retrieved 18 August 2019 from https://phys.org/news/2010-11-chevy-volt-mileage-mpg-electric.html The Chevrolet Volt, manufactured by General Motors, is a plug-in hybrid that can run on electric, gasoline, or a combination of the two. The 16-kilowatt-hour lithium ion battery will operate the car for an estimated range of 35 miles, after which the car will switch to gasoline mode. The battery re-charge time is around four hours on 240 V.A gallon equivalent is the amount of electrical energy equivalent to the energy contained in one gallon of gasoline. The Nissan Leaf, which does not run on gasoline at all, is rated at 99 miles per gallon equivalent. In electric-only mode the Volt requires 36 kilowatt hours per 100 miles, while for the Nissan Leaf the equivalent figure is 34 kilowatt hours per 100 miles. © 2010 PhysOrg.com 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 furtherlast_img read more

Marblar site seeks to clickstart science uses

center_img More information: www.marblar.com/ Citation: Marblar site seeks to clickstart science uses (2012, October 23) retrieved 18 August 2019 from https://phys.org/news/2012-10-marblar-site-clickstart-science.html (Phys.org)—”That’s a cool lab trick but what’s its purpose?” Marblar wants to tease out great answers from those who log in to participate. With prizes, points and kudos in the mix. Marblar is a new web site that aims to make dream connections possible between scientists and an enlightened audience of innovative thinkers who might collaboratively dream up new uses for unused technology. The Marblar team is coaxing its audience to clickstart a science revolution by coming up with uses that can enable the next big thing. “One thought leads to the next but sometimes to a dead end,” said the site’s video. “Perhaps we can help make ideas click together in a new way.”last_img read more

Best of Last Week – A way to measure variations in the

first_imgFigure of the “freezing surface” of quantum discord-type correlations. Credit: Marco Cianciaruso, et al. Citation: Best of Last Week – A way to measure variations in the speed of light, a slower universe and plucking hair (2015, April 13) retrieved 18 August 2019 from https://phys.org/news/2015-04-week-variations-slower-universe-plucking.html (Phys.org)—It was a big week for physics. First, a trio of researchers proposed a method to measure variations in the speed of light—in alternative theories of cosmology where it has been theorized that time and space can vary. Also, another team showed that the “quantum freezing phenomenon” is universal—this describes conditions in which quantum correlations can be “frozen” in a constant state and remain that way in the presence of noise. Meanwhile another team suggested that “unparticles” may provide a new path to superconductivity—the hypothetical form of matter, the researchers suggest, could play a key role in mediating superconductivity. Explore further Absence of gravitational-wave signal extends limit on knowable universecenter_img © 2015 Phys.org Also, a team of astrophysicists working at the DOE’s Fermilab suggested that the absence of a gravitational-wave signal extends the limit on the knowable universe—they are working with equipment capable of sensing gravitational waves at frequencies in the range of a million cycles per second. Also, work by two different teams suggested that the acceleration of the expansion of the universe might not be quite as fast as theorists have thought—new data has come to light indicating that supernovae used to measure distances in the universe are more diverse than thought.In other news, researchers at Stanford University have developed an ultra-fast charging aluminum battery that offers a safe alternative to conventional batteries—they say it is less expensive, too. Meanwhile another team at Virginia Tech announced a new discovery that may be a breakthrough for hydrogen cars—a new way to create fuel cells using a biological method. A team of bio-researchers discovered a master protein that enhances learning and memory—similar, they say, to other proteins that allow for enhanced physical abilities. And another team has built a fully functional computer that is about the size of a grain of rice, which portends a time in the near future when computers may be embedded in virtually everything around us.And finally, for those people worried about losing their hair as they age, a team of researchers is plucking hair to grow hair—they found that plucking hair in a certain pattern on mice induced new growth in the surrounding area—evidence of environmental circumstances causing the body to react in unpredictable ways. 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

Researchers launch plasmons with controlled amounts of angular momentum

first_imgSchematic experimental methodology. Credit: (c) Science (2017). DOI: 10.1126/science.aaj1699 Explore further Citation: Researchers launch plasmons with controlled amounts of angular momentum (2017, March 17) retrieved 18 August 2019 from https://phys.org/news/2017-03-plasmons-amounts-angular-momentum.html (Phys.org)—A team of researchers with members from institutions in Germany and Israel has developed a way to launch plasmons with controlled amounts of angular momentum using spiral-like structures fashioned into a smooth layer of gold plate. In their paper published in the journal Science, the group describes their technique and why they believe it could one day provide the basis for a new type of storage device. Journal information: Science © 2017 Phys.orgcenter_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. More information: G. Spektor et al. Revealing the subfemtosecond dynamics of orbital angular momentum in nanoplasmonic vortices, Science (2017). DOI: 10.1126/science.aaj1699AbstractThe ability of light to carry and deliver orbital angular momentum (OAM) in the form of optical vortices has attracted much interest. The physical properties of light with a helical wavefront can be confined onto two-dimensional surfaces with subwavelength dimensions in the form of plasmonic vortices, opening avenues for thus far unknown light-matter interactions. Because of their extreme rotational velocity, the ultrafast dynamics of such vortices remained unexplored. Here we show the detailed spatiotemporal evolution of nanovortices using time-resolved two-photon photoemission electron microscopy. We observe both long- and short-range plasmonic vortices confined to deep subwavelength dimensions on the scale of 100 nanometers with nanometer spatial resolution and subfemtosecond time-step resolution. Finally, by measuring the angular velocity of the vortex, we directly extract the OAM magnitude of light. New theory to explain why sun’s surface rotates slower than its core Prior work had shown that it was possible to use orbital angular momentum of photons as a way to store data in the air (because of their different phase advances—each could be used to represent an individual character), which in practical use would be optical fibers. In this new effort, the researchers have found a way to do much the same thing, only on a chip, which allows for it to be confined, making it much easier to port to an actual application.To accomplish this feat, the researchers turned to plasmonics, which are oscillations in quantum particles or quasiparticles. In this case, it was the oscillation of electrons that occurs when photons strike a metal surface. The idea, the researchers noted, was that plasmons allow for confining light, which meant that it was possible to make its wavelength conform to a metal surface. They found they were able to kick off plasmon waves with angular momentum by etching spirals into a gold plate—that allowed for monitoring its motion using an electron microscope. Using it, they were able to see that firing photons at the spiral in the plates caused electrons to be ejected, which was an indirect way to “see” plasmons, which were controlled by the angular momentum of photons. This meant it was possible to use the initial wave advances to represent characters within the confines of a computer chip. That day is still a long way off, of course— the work was more a proof of concept than a finished product. But if a way can be found to mass produce chips using the technique, end users could see a huge increase in the amount of data storage. The work also suggests, the team notes, that it might be possible to do some things with light that have never been possible before.last_img read more

New evidence suggests particles detected in Antarctica dont fit Standard Model

first_imgThe ANITA-IV experiment in Antarctica, prior to being launched on a balloon. Credit: Drummermean/CC BY-SA 4.0 More information: The ANITA Anomalous Events as Signatures of a Beyond Standard Model Particle, and Supporting Observations from IceCube, arXiv:1809.09615 [astro-ph.HE] arxiv.org/abs/1809.09615 Journal information: arXiv A team of researchers at Penn State University has found new evidence that suggests some particles detected in Antarctica do not fit the Standard Model. They have written a paper outlining their arguments and have posted it on the arXiv preprint server. Explore further 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.center_img Citation: New evidence suggests particles detected in Antarctica don’t fit Standard Model (2018, October 1) retrieved 18 August 2019 from https://phys.org/news/2018-10-evidence-particles-antarctica-dont-standard.html © 2018 Phys.org Prior research has shown that when low energy cosmic particles encounter the Earth, they are likely to pass right on through—high energy particles, on the other hand, are almost certain to run into something else, preventing them from passing through in one piece. Instead, they cause an avalanche of collisions, creating a shower of particles that eventually emerge on the other side of the planet. But what if a high-energy particle were to make it all the way through without creating a particle shower? That would mean there likely exists a particle that is not described by the Standard Model—and that is exactly what researchers studying particles detected over Antarctica are reporting.To date, two odd particle events have been detected by a sensor attached to a high-altitude balloon hovering over Antarctica as part of a project called the Antarctic Impulsive Transient Antenna (ANITA)—the first detection was back in 2006, the second in 2014. Both indicated that a high-energy particle had somehow made its way through the planet without encountering anything. The first detection was attributed to equipment problems or some other unknown factor. The second caused more concern—but not enough for anyone to seriously consider challenging the Standard Model. In this new effort, the researchers report that they have found other evidence of the same type of particle, suggesting the two anomalies might truly represent unknown particles.The new evidence came in the form of sensor data from the IceCube experiment in which sensors buried in the Antarctic ice continually detect particle events. Data from the sensors showed that three events with unexplained properties had occurred. The researchers suggest the two unconnected sources of data indicate that it is time to start asking whether the anomalies hint at the possibility of particles beyond the Standard Model. Hunting for dark quarkslast_img read more

Added colours of smile on Holi

first_imgThe show aimed to bring the Urdu and Hindi poetry and literature back into mainstream awareness with showcasing the awesome talent that exists in this sphere. This was a part of the ongoing series of concerts/programs which are being organized to bring high quality artists to public and easily accessible stage for the discerning audience with an evening of fun and laughter.The objective of the show was with the purpose of attracting the present generation to the rich heritage of these Indian Languages.With this overriding thoughts in mind stalwarts like popular Meeruthi, Razi Amrohi, Nashtar Amrohi, Iqbal Firdausi, Famous Khataulvi, Ahmed Alvi, Mamta Kiran, Asim Peerzada, Moien Shadab, Raees Siddiqui were invited and they regaled the gathering with a volley of rib tickling couplets.last_img read more

How about a golf game

first_imgGroup Silverglades, specialising in golf-based leisure developments and luxury residential housing projects hosted the Annual Family Carnival and Skinners Cup Golf Tournament at its flagship project Tarudhan Valley Golf Resort, Gurgaon on December 21. Tarudhan Valley is India’s first gated golf community carefully designed to include exotic Golf Homes dotted around an exceptionally designed 9-hole golf course.Anubhav Jain, Director Group Silverglades, said, “We at Silverglades take great pride in creating addresses that are timeless and iconic and the Tarudhan Valley is a sterling example of this vision. The Skinners Cup Golf Tournament reflects the brilliant connect of sports, lifestyle and modern luxury at Tarudhan Valley. The annual gala showcased outstanding performances on the course, unforgettable moments and worthy winners.”The Tarudhan Valley offers apartments, villas and balinese style wooden cottages for gracious living, as well as a well-appointed Clubhouse, Resort Hotel, Conferencing facilities and Golf Driving Range. Besides golf, families also enjoyed themselves at the games stalls with the youngsters having a good time doing pottery and tattooing while the ladies indulged themselves in a relaxing spa session.last_img read more

Mythology redux

first_imgStarting on February 25, the festival will see Ahalya as its opening performance. Ahalya,  the wife of the sage Gautama Maharishi, believed to be seduced by Indra (the king of the gods), cursed by her husband for infidelity, and liberated from the curse by Rama. The performance is portrayed by Arupa Lahiry – disciple of Guru Chitra Visweswaran.The next act for the day will be Draupadi. Chaste and virtuous, divinely beautiful, endowed with youth and intelligence, she was a warrior princess whose anger destroyed the sinful Kauravas dynasty. This act is portrayed by Soundarya Srivathsa – disciple of Late Guru Narmada. Also Read – ‘Playing Jojo was emotionally exhausting’The second day of the festival will open with Soorpanakha. Soorpanakha was the sister of the main antagonist, Ravana, King of Lanka, is the catalyst of the chain of events leading directly to her brother’s demise. This production is portrayed by Dakshina Vaidyanathan – disciple of Gurus Saroja Vaidyanathan and Rama Vaidyanathan.The next act is Karna. He was the son of Surya and one of the greatest warriors in the Mahabharata, who fought against misfortune throughout his life and kept his word in every circumstance. Karna is portrayed by Sathyanarayana Raju – disciple of Late Guru Narmada. Also Read – Leslie doing new comedy special with NetflixUsha Rk : Arts Consultant: Dance became her companion during her schooling days. Training under the venerable Gurus of the Raja Rajeshwari Bharata Natya Kala Mandir, Gurus CR Acharya and Vempati Chinna Satyam, Usha chose to take up research and academic aspects of dance that enabled her to develop her dance writing skills. A pioneer in the sphere of organising cultural and artistic initiatives,  Usha Rk has carved a niche for herself as a nurturer and propagator of immense talent. Conceptualising and creating some of the path breaking dance and music festivals, Usha worked with many of the legends in the music, dance and film worlds.  Whether it was thematic festivals like “Swarna Sankhya” or the grand music festival “Raga Tala” and  “Nritya Dhara” celebration of International Dance day, featuring over 175 dancers or the PR led concerts of music and art, almost all her endeavours have been successful and appreciated.Interesting thematic dance programs like Thyagaraja Vaibhavam, Margam – a festival of varnam, Rama Katha, Diksha – based on the compositions of Muthuswamy Dikshitar, Padams and Javalis, Dwaaram, Radha Madhurya etc by Usha have attained exceptional success.Her complete dedication to promoting and propagating the arts is significant and noteworthy, where for the past seven years she has been presenting artists and performances with a view to preparing the next line of superstars in classical dance basis goodwill and personal resources primarily.last_img read more

Pick easy experimental fashion this festive season

first_imgBe more experimental and choose easy styles and accessories like flats or pre-draped saris for your look during the forthcoming festive season, says an expert. The festive season has already begun and online shopping websites are offering full-fledged sales. Instead of pondering on  the latest fashion trend, one can choose comfort and look pretty. One can go easy with make-up and can wear right shoes as this will complete the overall look. Bhuvi Kathpalia, assistant manager, content (creative), Indianroots.com, an online marketplace for Indian fashion, has shared some dressing tips: Also Read – ‘Playing Jojo was emotionally exhausting’Colour paletteThere is a swift acceptance of a different colour palette which comprises of shades like peach, champagne pink, marsala, wine, aquamarine blue and green, coral, and pastel hues. Since the festivals run over a long period of time without any differentiation in day or night, one should opt for ensembles that are effortless, comfortable, yet chic.EmbellishmentDo not go overboard with the bling. A hint of defining embellishments go a long way to reflect the overall zest of the celebrations. Also Read – Leslie doing new comedy special with NetflixFloralsMacro florals have made a huge comeback and this is a great time to wear them with grace. Opt for a floral skirt and team it up with a flattering crop top. Experiment with bold colours at the bottom like vermillion red, but take the look a notch lower with a pastel hued crop top or blouse. Always keep a golden blouse handy that suits your body type and can be used at any time to complete the look. Experiment with a layered or dhoti style skirt that will factor in the element of comfort in your look. Traditional embroideriesDelicate embroideries, bold block prints, tie-dyed silhouettes, foil prints, golden shimmers and sequins, vibrant phulkari, luxurious brocades, are trends that one should experiment with. Choose ethnic wear staples that can transit easily from day to night without adding anything more than a piece of accessory.Opt for hybrid lookThe hybrid look, that is the convergence of traditional sensibilities and contemporary convenience, is making its way into experimentation due to its festive appeal. Choose anarkali dresses crafted from cotton or cotton silk, adorned with block printed motifs to keep a balance.Easy to wear sarisIf you want to keep it simple with a sari, try pre-draped saris or go for fabrics like chanderi and experiment with ombre hues to look taller. Incorporate a zipper into your blouse or kurta, combine a structured phulkari embroidered jacket with an edgy maxi dress, try statement neckpieces or maang tikas for extra bling.last_img read more