Could the mining moon provide a source of energy for Earth? Trade-offs reveal no clear favorites in alternative energy market More information: Mother Nature Network: www.mnn.com/earth-matters/ener … -never-heard-3#image (PhysOrg.com) — As fossil fuels increasingly fall out of favor, many are looking into alternative energy sources to help us power our lives with a smaller impact on the environment. You already know about solar power and wind energy, and hydro-electric power and nuclear power have been around for decades. But scientists are increasingly looking to the natural world for additional solutions. © 2010 PhysOrg.com 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. Citation: 5 Sources of Alternative Energy You May Not Have Heard Of (2010, February 4) retrieved 18 August 2019 from https://phys.org/news/2010-02-sources-alternative-energy-heard.html Here are 5 alternative energy sources that you may hearing more of soon:• Helioculture: The idea is to create hydrocarbons with a little help from the sun. Brackish water is combined with photosynthetic organisms, nutrients and carbon dioxide and left in the sun. This process results in hydrocarbons that are ready for use a fuel — not refining necessary.• Sewage: Our waste can…reduce waste. Using microbial fuel cells, sewage can be used in bio-electrochemical systems to create power. In fact, Norway has plans to begin using human waste to power the buses in Oslo.• Evaporation: Apparently, scientists are working on ways to harness the difference in electrical properties that exist between air and water. In order to make this work, a special kind of “leaf” is micro-fabricated. Air bubbles are pumped in, and as the water evaporates, the power is captured. Although it does seem like a lot of work for what might not be too much power…• Human movement: Could the expanding planetary population actually power itself through movement? There are thoughts that piezoelectricity could be generated with the use of special tiles placed in strategic places where people walk. These tiles would be made out of materials that generate energy in response to mechanical stress applied on them. As people walked to the bus, or jogged in the park, their pressure on these tiles could produce power.• Moon: For some time, scientists have considered ways to produce Helium-3, which is a non-radioactive possibility for mostly clean energy. However, creating He-3 on earth is a real pain. However, our near neighbor, the moon, has this light isotope in abundance. Could we see mines on the moon, working to tap into this source of possible energy? Maybe. One Russian company, RKK Energiya, thinks that moon mining for Helium-3 could be a possibility by 2020.It is clear that we do need to start using our innovation to look for alternative sources of energy. It will be interesting to see which (if any) of these alternative energy sources actually become viable.
“Photons in a normal laser are emitted by atoms, by ions, and so on,” Tkalya told PhysOrg.com. “In the nuclear gamma-ray laser, the photons are emitted by atomic nuclei.”In the study, which is published in a recent issue of Physical Review Letters, Tkalya explains that a nuclear gamma-ray laser has to overcome at least two basic problems: accumulating a large amount of isomeric nuclei (nuclei in a long-lived excited state) and narrowing down the gamma-ray emission line. The new proposal fulfills these requirements by taking advantage of thorium’s unique nuclear structure, which enables some of the photons from an external laser to interact directly with thorium’s nuclei rather than its electrons.Tkalya’s proposal uses a lithium-calcium-aluminum-fluoride (LiCaAlF6) compound, in which some of the calcium is replaced with thorium. After a sufficient amount of isomeric thorium nuclei have been excited by an external laser, the nuclei can interact with a surrounding electric or magnetic field to create a population inversion, so that the system contains more excited nuclei than unexcited nuclei. (In a regular laser, a population inversion usually involves getting more electrons in a higher energy level than a lower energy level.) Then, Tkalya showed that the nuclei can emit or absorb photons without recoil, allowing them to produce light without losing energy.“The nuclear gamma-ray laser considered in my article can emit ‘visible’ (vacuum ultraviolet [VUV]) light (or gamma-rays of the optical range) only,” Tkalya said.As Tkalya explained, a nuclear gamma-ray laser could open up several interesting applications, although he has not thoroughly investigated them yet. One possibility is that the gamma-ray emission of the excited thorium nuclei is in the optical range called “nuclear light.”“In my opinion, it is interesting to see a ‘nuclear light,’” he said. “An application of nuclear light is the nuclear metrological standard of frequency, or the ‘nuclear clock.’”In addition, the device could be used to test many fundamental properties of nature, such as the exponentiality of the decay law and the effect of the variation of the fine structure constant. 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. New territory in nuclear fission explored with ISOLDE More information: E.V. Tkalya. “Proposal for a Nuclear Gamma-Ray Laser of Optical Range.” Physical Review Letters 106, 162501. DOI:10.1103/PhysRevLett.106.162501AbstractA possibility of the amplification of the 7.6 eV γ radiation by the stimulated γ emission of the ensemble of the 229mTh isomeric nuclei in a host dielectric crystal is proved theoretically. This amplification is a result of (1) the excitation of a large number of 229mTh isomers by laser radiation, (2) the creation of the inverse population of nuclear levels in a cooled sample owing to the interaction of thorium nuclei with the crystal electric field or with an external magnetic field, (3) the emission or absorption of the optical photons by thorium nuclei in the crystal without recoil, and (4) the nuclear spin relaxation through the conduction electrons of the metallic covering. Copyright 2011 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. (PhysOrg.com) — Building a nuclear gamma-ray laser has been a challenge for scientists for a long time, but a new proposal for such a device has overcome some of the most difficult problems. In the new study, Eugene Tkalya from the Institute of Nuclear Physics at Moscow State University has theoretically proven how the stimulated gamma emission of thorium nuclei can emit coherent visible light. Although the nuclear gamma-ray laser emits light based on stimulated emission, it operates a bit differently than a normal laser. Citation: Proposed gamma-ray laser could emit ‘nuclear light’ (2011, May 2) retrieved 18 August 2019 from https://phys.org/news/2011-05-gamma-ray-laser-emit-nuclear.html
Microsoft continues to beat the drum as a technology company out to inspire and support 3D printing. After announcing earlier this year that it would be supporting 3D printing in Windows 8.1, Microsoft earlier this week took another step up when it announced the launch of its 3D Builder. © 2013 Phys.org 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.
Art is timeless. Its imprints can be found at any place at any point in time. The pictorial depiction of human-made markings on natural stone, popularly known as rock art, is the most ancient form of expression.These rock art images are a source of cultural communication between the past and the present.With a view to spread awareness and address the urgent need to preserve this art form, Indira Gandhi National Centre for the Arts along with Ministry of Culture, Government of India, is organising an International conference on rock art 2012 along with an exhibition and workshops. Also Read – ‘Playing Jojo was emotionally exhausting’‘The exhibition is an initiative which will help in understanding the roots of rock art and the journey since then, helping people to relate their theoretical knowledge with practical. India is fortunate in possessing one of the three largest concentrations of this world heritage. The conference is relevant with respect to research and learn and develop documentation programme of rock art,’ said Dipali Khanna, Member Secretary, Indira Gandhi National Centre for the Arts (IGNCA). Also Read – Leslie doing new comedy special with NetflixThe theme of the conference will centre on the following themes: concept and methodology, interpreting rock art, documentation and conservation amongst many.‘Experts and scholars from India, France, Italy, Spain, Indonesia, Douth Africa, Australia, Poland, USA, Cuba, Peru, Bolivia, China and many other countries will address the issue and challenges for preservation of rock art,’ added Khanna. Rock art festival will feature an exhibition of Indian and global rock art from to synthesise people about the unique nature of rock art. The exhibition partly will feature global rock art which will be divided in zones showing art forms of different continents. There are pieces rock arts related to pre-historic era ranging between 4,000 and 12,000 BC at display too.The Indian wing will also exhibit various tribal art forms that shows continuity of the tradition of rock art. The art forms will include Saura (Odisha), Warli (Maharashtra) and Rathwa (Gujarat). During the workshop, the rock art scholars and artists across the globe would demonstrate the journey of rock art, techniques and materials used for its depiction along with similarity and their differences in the art form across the countries.‘A cave like set up has been designed on the lines of Bhimbetka, an archaeological World Heritage site located in Raisen District in Madhya Pradesh to give a first hand experience and focus of the exhibition,’ said Khanna.DETAILAt: Indira Gandhi National Centre for Arts C.V Mess JanpathWhen: 7 December- 25 January Timings: 10 am to 7 pm
Looking out for something exotic for your dinner date this weekend? For a ‘cow-boy styled’ dining rendezvous over delightful Tex-Mex cuisine head to Rodeo, Delhi’s first authentic Mexican-Italian cuisine restaurant. Rodeo’s executive chef Sanjay brings to your palate a complete new mouth-watering menu of authentic dishes. The wide array of non-vegetarian options features delectable offerings like the hot favorite- Enchiladas, an elegant adaptation of folded tortillas ;Barbacoa-marinated barbeque chicken; Pan PolloAsado -Pan pollo chicken; Coredeo En Cazuela-tender lamb simmered in aromatic spices, chilies and red wine to name a few. Also Read – ‘Playing Jojo was emotionally exhausting’For all the ardent vegetarians, the menu offers a variety of Masha Dishes, Tortillas such as Tortilla Aztec- an oven dish made with cheese , corn , herbs and your choice of stuffing in chef special sauce and much more. Compliment your food with a variety of cocktails, mocktails, and many such interesting drinks. Tease your sweet tooth with the lip-smacking Mexican style brownie topped with vanilla ice cream, plenty of home-made hot fudge sauce and nuts.So, get ready for a culinary voyage over a unique Tex-Mex experience with friends or family.
What is the meaning of the word ‘liberation’? Its connotations are several, open to all kinds of interpretations from men and women of all colours and creeds. Is there a ‘real picture’ of liberation? Can it ever mean one thing, and isn’t the fuzziness of meaning a liberating facet of the word itself? That is the answer that Ishwar Shunya in his play, Nine Parts of Desire, tries to seek. Shunya says the play, which is making its debut in the Capital and is directed by Kanchan Ujjal Singh, is an attempt to find a catharsis for the lack of female agency in today’s world. Also Read – ‘Playing Jojo was emotionally exhausting’‘The play is based on nine stories of nine Iraqi women post or during the Gulf War. The play embodies the argument of what liberation means for each of the women. Inspired by the work of Geraldine Brooks and Heather Raffo, it is a portrait of the extraordinary (and ordinary) lives of Iraqi women – a sexually alluring painter, a radical Communist, doctors, exiles, wives and lovers. It portrays the many conflicting aspects of what it means to be a woman in a country overshadowed by war,’ says Shunya. Also Read – Leslie doing new comedy special with NetflixThe nine monologues span through different situations, varied sufferings, both imaginary and real, of the nine characters. It further explores love, life, desires, wishes and whims seen from the women’s perspective. ‘One of the nine characters is an innocent child who lives her strife-ridden life in the war-struck Iraq. There is lament for how American forces, under the garb of welfare, have only carried out vested interests for their own countrymen,’ he added.
While the musician was in Delhi for a performance at The Aquarium Lounge, we got a chance to talk to him. Read on…Before we get into your solo projects, I must bring up Midivil Punditz. Describe to us the journey Indian electronica music has taken ever since you began making music? Midival Punditz has been Tapan and my main project for the last 15 years and we have come a long way from being Dj’s in Delhi night clubs, to making our own music and releasing 3 studio albums till yet. We started making electronica when it was just starting out in the west. This actually gave us a pretty open palette to do anything we wished to in India. So, we kinda decided to do the most honest style that came to us. We did not realise at that time that it would be called Asian Electronica eventually. Also Read – ‘Playing Jojo was emotionally exhausting’You are coming out with an album called Grey to Silver, where you have collaborated with Karsh Kale. Is there an underlying theme behind this album? What inspired you to create it? Describe that moment to us.The Grain project came about, out of my personal desire to write songs and vocal tracks. I have wanted to do song-writing for a long time now, and it was with Karsh that i started experimenting with it. I wrote the first couple of tracks with Karsh and then with Talia Bentson, and that was a realisation into the style i wanted for Grain. I think it was after I wrote It’s All Right with Karsh that the entire sound emerged for me. Also Read – Leslie doing new comedy special with NetflixWhat is the stuff that you grew up listening to? Tell us a little bit about your key musical influences?Like any other kid born in the 70’s, I grew up listening to 80s music, and then Classic Rock. It was not until the 90’s that i started listening to the Electronica artists like Prodigy, Chemical Brothers, Fat Boy Slim, Apollo 400, etc. My musical influences have been a mix of all these, from Led Zeppelin, Rolling Stones, to Michael Jackson and Prodigy. Daft Punk’s Thomas Bangalter, in an interview said, ‘Today, electronic music is like an audio energy drink. Artists are overcompensating with this aggressive, energetic, hyper-stimulating music – it’s like someone shaking you. But it can’t move people on an emotional level.’ Do you agree?I agree with Thomas’ introspection on the electronica production these days. It has become pretty aggressive and loud. However, there is also a lot of good emotional and well written electronica out there.What suggestion/advice would you have for newbies in this field?Make ‘honest’ music. Please speak the truth and that will make you successful and also make the audience feel your music.
Colours of India,a photography exhibition is being organised in the Capital by Delhi Photography Club. Picture clicked by Kaynat Kazi will be displayed at the show. From colorful block prints, Mughal crafts to blue pottery and meenakari, this show is more than a story. It’s a narration of some of the rare arts getting even rarer each passing day and much more. The rani pink of mystical Rajasthan; the pastel hues of southern India; the joyous, bright hues of the northern frontier; and the bright colors of the east offer a kaleidoscopic insight into an almost perfect blend of India’s history and modernism. Also Read – ‘Playing Jojo was emotionally exhausting’The artiste, Kazi is an avid photographer who loves travelling to unfrequented places – from the heights of Ladakh, villages of Uttar Pradesh, Rajasthan and Maharashtra – and captures diverse cultures that usually escape the regular eye. Her interest lies in capturing female expressions and candid photography. She believes that the moment the subject is conscious of being clicked, the original element is lost.When: On till 15 JulyWhere: Open Palm Court Gallery, India Habitat Centre, Lodhi RoadTiming: 11 am to 7 pm