Explore further Bruce Power – Canada’s first private nuclear generating company – is considering including a hydrogen storage and distribution component to go along with a large scale wind farm, all presently sharing the main electrical transmission line in Bruce County, Ontario. The province’s first commercial wind farm, Huron Wind, is located on the shore of Lake Huron. Its five wind turbines provide a maximum output power of 9 MW. Additional large scale wind farms are located close by, using the same transmission lines.Bruce Power’s nuclear power plant, located about 250 km northwest of Toronto, consists of six reactors. Together, the reactors generate a total output power of 4,830 MW, which supplies more than 20% of Ontario’s electricity.Using hydrogen as a storage and distribution method for the electricity generated by the wind farm and nuclear plant from the same region could have several potential benefits. When the cost of electricity is low, for example, the company could store part of its electricity production as hydrogen, and then sell it back to the electricity market when the price increases. Similarly, electricity could be stored as hydrogen when there is not enough line capacity to transfer it all at once. In periods of low winds, hydrogen storage could help make up for the variability and in periods of high winds and constrained transmission capacities, hydrogen could be used to store the electricity. In the future, the hydrogen itself could be sold to a hydrogen market, which could be more profitable than selling it back to the electricity market. However, costs of the initial investment, production, and operation won’t be matched by the profit solely from storing electricity as hydrogen, according to the study by Gregor Taljan and Gregor Verbič from the University of Ljubljana, Slovenia, and Claudio Cañizares and Michael Fowler from the University of Waterloo, Ontario. Even with an optimistic hydrogen production efficiency of 60% through electrolysis, the researchers’ evaluation shows that the electricity stored as hydrogen would need to be sold to the electricity market at a high price that rarely happens in order for the scheme to be profitable. As the researchers demonstrate, the selling price of electricity would need to be about four times the buying electricity price for the hydrogen system to profit from storing electricity. 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. A recent case study on using hydrogen to store the electricity generated by a mix of wind and nuclear power in Ontario, Canada, has shown that the hydrogen addition won’t be worth the cost, at least not at the current state of hydrogen technology development. Citation: Hydrogen-Wind-Nuclear Plant in Ontario Not Currently Worthwhile, Study Shows (2008, August 6) retrieved 18 August 2019 from https://phys.org/news/2008-08-hydrogen-wind-nuclear-ontario-worthwhile.html Solar power system that works at night a renewable energy game-changer “This study is very important from the viewpoint of finding synergies between electrical energy and chemical energy stored in hydrogen,” Taljan told PhysOrg.com. “The study shows that currently, hydrogen is not profitable solely for electricity storage. On the other hand, it might be economically acceptable to produce hydrogen from electricity at advantageous electricity/hydrogen prices. Furthermore, hydrogen is shown to be a highly favorable option when there are electricity transmission constraints in the area, limiting sales of electricity of a power producer.”As the researchers explain, hydrogen storage might be an economically feasible option for storing electricity in times of insufficient electricity transmission line capacities, which would otherwise be dumped. This could be especially true in cases where the upgrade of transmission systems is not an option due to various reasons (such as remote location, resistance of local population, etc.).The study also showed that a hydrogen sub-system for producing hydrogen could be profitable if there is sufficient hydrogen demand. For instance, transportation applications (such as cars, trains, and planes) could provide a market for buying hydrogen produced by a mixed wind-nuclear plant. “Hydrogen production might become profitable when the Hydrogen Economy becomes fully mature, i.e. when the demand, and correspondingly prices, for hydrogen increases (expected mainly from the transportation sector),” Taljan said. “This might happen when the prices of fossil fuels rise as a result of many different possible factors (e.g. shrinking reserves, higher demand, political instabilities, CO2 emissions trading schemes). In this scenario, hydrogen might become a real fossil fuel substitute option which will drive up the hydrogen demand and prices, making the hydrogen production a lucrative business. “In this context, it is also important that research into hydrogen production, storage, transmission, distribution and consumption components ‘wins the battle’ with the electron economy, where the energy carrier is considered to be electricity. Those two economies compete in many different areas, such as efficiencies, durability, and prices. Currently, hydrogen is advantageous in terms of higher energy density and durability but still lags in efficiencies.”The team’s investigation into the feasibility of hydrogen is further elaborated in two other recent studies. “Hydrogen storage for mixed wind–nuclear power plants in the context of a Hydrogen Economy,” which is published in the International Journal of Hydrogen Energy, deals with how the excess oxygen and heat utilizations would improve the economics of hydrogen systems primarily designed for storing of electricity. The second study, “Study of Mixed Wind-Nuclear-Hydrogen Power Plants,” which is going to be presented at this year’s North American Power Symposium in Calgary, demonstrates that hydrogen is not economically feasible for the sole purpose of storing electricity, in spite of residual heat and oxygen utilization, and based on current hydrogen production and utilization technologies.More information: Taljan, Gregor; Cañizares, Claudio; Fowler, Michael; and Verbič, Gregor. “The Feasibility of Hydrogen Storage for Mixed Wind-Nuclear Power Plants.” IEEE Transactions on Power Systems, Vol. 23, Issue 3, August 2008.Copyright 2008 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.
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 © 2011 PhysOrg.com In 2009, New Energy Technologies conducted a field test at a Burger King in Hillside, New Jersey. Citation: Speed-bump device converts traffic energy to electricity (2011, November 9) retrieved 18 August 2019 from https://phys.org/news/2011-11-speed-bump-device-traffic-energy-electricity.html A Maryland company, New Energy Technologies, has devised that kind of speed-bump device, which the company likens to a rumble strip, that harvests kinetic energy from vehicles and converts the energy into electricity. New Energy’s MotionPower Express system captures the unused kinetic energy of vehicles at points where they are required to slow down or come to a stop. New Energy has ambitions to see its MotionPower Express devices become a part of the toll booths, rest areas, parking lots, airport arrival and departure areas, city lighting systems, zones in other places where traffic should be slowing down—scenarios that can benefit from a greener approach to energy and electricity cost savings.New Energy has been testing its technology for over a year. The company recently got a boost in publicity by partnering with the city of Roanoke in Virginia to put its MotionPower Express system to the test. According to the company and the city, that test, which was carried out late last month, was successful. Roanoke tested the device that generated energy when vehicles drove over it. MotionPower Express is suited for installation where vehicles are traveling faster than 15 mph and are slowing-down before stopping, including parking lots, border crossings, exit ramps, neighborhoods with traffic calming zones, rest areas, toll booths, and travel plazas.The installation at the Roanoke Civic Center was during a busy time when the center was hosting a gun show and circus. A total of 580 cars passed over the rumble strip in six hours.Reports claim this traffic over this amount of time generated enough electricity to power an average U.S. home for a day. In a commercial context, the traffic over a six hour period was claimed to produce enough electricity for a 150 square-foot electronic billboard or marquee for a day. New Energy Technologies has been field-testing MotionPower for over a year. In 2009, they conducted a field test at a Burger King in Hillside, New Jersey. (PhysOrg.com) — The two little words “speed bump” usually evoke unpleasant memories of spilled coffee and back-seat arguments questioning if and where you learned how to drive. In some green energy circles, speed bumps take on a far more pleasant image. You may even hear a more dignified and important term, such as “kinetic energy recovery device.” At the time of the Burger King test, the company estimated that each MotionPower speed bump would cost $1,500 to $2,000 and earn back its cost in two to three years. A business could use it to offset electricity costs, or sell back energy to the grid if applicable through state metering laws. The City of Roanoke will be publishing results of the trial installation in January.If all this sounds vaguely familiar, it is because numerous companies have been interested in deploying novel solutions that can harness energy. In 2009, news from the UK was that a startup called Highway Energy Systems was installing “Kinetic Road Plates” at a Sainsbury’s supermarket in Gloucester. The goal was to harness energy from vehicles driving in and out of the store’s car park to power store checkouts.Pavegen is a company that says that each time someone walks over its Pavegen tile, renewable energy is harvested from the footstep. Pavegen technology converts kinetic energy to electricity which can be stored and used for a variety of applications. Those applications include street lighting, displays, and signage. Image: New Energy Technologies More information: www.newenergytechnologiesinc.com/motion_power Passing cars to generate energy for new UK supermarket
© 2011 PhysOrg.com More information: (PhysOrg.com) — The Stuxnet cyber weapon that was designed to cripple control systems in Iran’s nuclear plant was just one of five weapons engineered in the same lab, and three have not been released yet. That is the word from Moscow based Kaspersky Lab. What’s more, according to Kaspersky’s director of global research, Costin Raiu, these Lego-like weapons work as modules, in that they are designed to fit together with each having different functions. They were developed on a single platform whose roots trace back at least to 2007; the creators have used the same software development environment ever since. via Reuters Citation: Kaspersky team reveals Stuxnet family of weapons (2011, December 29) retrieved 18 August 2019 from https://phys.org/news/2011-12-kaspersky-team-reveals-stuxnet-family.html Explore further Raiu told Reuters about the findings on Wednesday based on the evidence that his team has gathered. He cited Stuxnet–the Iran-targeted weapon– and a related Duqu–the data-scoffing Trojan targeting design documents that showed up this year in Europe– as two of what might be a lethal assembly—three of the weapons have yet to be released.Besides Kaspersky, other anti-virus leaders such as Symantec and Trend Micro incorporated technology into their products to protect systems against Stuxnet and Duqu; Raiu says that these viruses may be more sophisticated than previously known.Kaspersky named the platform “Tilded” because many of the files in Duqu and Stuxnet have names beginning with the tilde symbol “~” and the letter “d.” What Kaspersky recently discovered is that shared components search for at least three other unique registry keys, It is possible that at least three other pieces of malware have been built that use the same platform. It would be relatively easy for the developers of those highly sophisticated viruses to create other weapons.Developers can build new cyber weapons by simply adding and removing modules, he told Reuters, “It’s like a Lego set. You can assemble the components into anything: a robot or a house or a tank.”The Kaspersky team cited 2007 because installed code by Duqu was compiled from a device running Windows on August 31, 2007. Kaspersky sources did not name a country responsible for the cyber weapons. When contacted by the press about Kaspersky’s findings, the Pentagon declined comment. Kaspersky Lab is a vendor of security software. In 1999, Kaspersky Labs, says the company, was the first to introduce integrated antivirus software for workstations, file servers and application servers running on Linux/FreeBSD operating systems. Iran says Duqu malware under ‘control’ 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: Pituitary Disease from the Past: A Rare Case of Gigantism in Skeletal Remains from the Roman Imperial Age, Published online before print October 2, 2012, doi: 10.1210/jc.2012-2726 (Phys.org)—Paleopathologist Simona Minozzi and her team working at the University of Pisa, have published a paper in the Journal of Clinical Endocrinology and Metabolism describing the skeletal remains of a Roman man from the third century that was first partially unearthed in 1991 in Italy. It is believed the man had gigantism, a metabolic condition that causes people to grow exceptionally tall. The skeleton was believed to have been from a man between the ages of 16 and 20 when he died, who would have stood 6 feet, 8 inches tall. Citation: Paleopathologist finds gigantism in third century Roman skeleton (2012, November 19) retrieved 18 August 2019 from https://phys.org/news/2012-11-paleopathologist-gigantism-century-roman-skeleton.html © 2012 Phys.org To no longer grow is a ‘blessing’ for world’s tallest man Explore further Journal information: Journal of Clinical Endocrinology and Metabolism Credit: (c)2012 [i]Journal of Clinical Endocrinology and Metabolism[/i], doi: 10.1210/jc.2012-2726 Gigantism generally occurs due to a tumor in the pituitary gland that causes growth hormones to be released in an abnormal manner while a person is still young. It’s extremely rare, occurring in just three people in a million, causing them to grow to heights ranging from seven to nine feet tall. In early Roman times, such a tall person would have stood out from the crowed, as the average height for a man in the third century Roman world, was just 5 feet, 6 inches.In studying the skeleton, Minozzi and her team found evidence of skull damage that appears to have occurred as the result of a tumor causing distention, a frequent occurrence with those that have the condition today. They also found evidence that the man had not yet ceased growing, another common symptom found with people that have the disorder. Dying young is also common for those that have gigantism as such growth tends to lead to other problems such as with the circulatory system. Thus far, the research team has been unable to identify the cause of death in this case, however.The team also looked for clues that might provide some insight into how the man was treated by people around him as surely his great height would have made him a curiosity. Unfortunately, his tomb, which was originally discovered back in 1991 held no artifacts, though the manner in which he was laid to rest indicated that his burial was no different from others of his time. During the original dig, it was noted that the tomb was unusually long, but it wasn’t opened until recently. Noting the unique skeleton, the remains were sent to Minozzi’s facility for further study. 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 work from UC Davis shows that carbon dioxide can be split by vacuum ultraviolet laser to create oxygen in one step. The discovery may change how we think about the evolution of atmospheres. Credit: Zhou Lu, UC Davis NASA research gives guideline for future alien life search More information: Evidence for direct molecular oxygen production in CO2 photodissociation, Science 3 October 2014: Vol. 346 no. 6205 pp. 61-64 . DOI: 10.1126/science.1257156 ABSTRACTPhotodissociation of carbon dioxide (CO2) has long been assumed to proceed exclusively to carbon monoxide (CO) and oxygen atom (O) primary products. However, recent theoretical calculations suggested that an exit channel to produce C + O2 should also be energetically accessible. Here we report the direct experimental evidence for the C + O2 channel in CO2 photodissociation near the energetic threshold of the C(3P) + O2(X3Σg–) channel with a yield of 5 ± 2% using vacuum ultraviolet laser pump-probe spectroscopy and velocity-map imaging detection of the C(3PJ) product between 101.5 and 107.2 nanometers. Our results may have implications for nonbiological oxygen production in CO2-heavy atmospheres.Press release (Phys.org) —A small team of researchers with the University of California has found a way break apart carbon dioxide molecules and get carbon atoms and oxygen molecules instead of carbon monoxide and an oxygen atom. In their paper published in the journal Science, the team describes how they did it, and the implications of their findings. Arthur Suits and David Parker offer a perspective piece in the same journal issue that describes in more depth, minimum energy path (MEP) where reactants don’t always follow the easiest path during chemical reactions and how it pertains to the work done by this group. Ball-and-stick model of carbon dioxide. Credit: Wikipedia Explore further Over the years, scientists have developed a theory about the development of life on planet Earth that’s known as the “Great Oxidation Event,” where plants developed and began taking in carbon dioxide and pumping out oxygen. In this new effort, the researchers believe they have found a way to achieve the same feat using a non-biological approach. They’ve used the shortest wavelength of ultraviolet light, aka, vacuum ultraviolet light (VUV) to break apart carbon dioxide molecules.The VUV was provided in the form of a laser shooting a beam at carbon dioxide molecules to break them apart. Another laser was used to ionize the pieces from the broken molecule so that they could be measured by a mass spectrometer. The process resulted in just 5 percent of the carbon dioxide molecules splitting into oxygen molecules and carbon atoms (the rest went to carbon monoxide and oxygen atoms) but that was more than enough to show that the process can be used to get molecular oxygen from carbon dioxide—and that might have a far reaching impact. Citation: Researchers discover a way to tease oxygen molecules from carbon dioxide (2014, October 3) retrieved 18 August 2019 from https://phys.org/news/2014-10-oxygen-molecules-carbon-dioxide.html Journal information: Science © 2014 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. The process works, the team explains because of MEP reactions and because of that, it seems reasonable to conclude that some oxygen in early Earth’s atmosphere came about the same way—with all the oxygen in the atmosphere today, VUV doesn’t penetrate very far but when the atmosphere had far more carbon dioxide in it, it follows that some of those molecules could have split into carbon atoms and oxygen molecules. That also means that the same process could occur on other planets, which means scientists looking for life on other planets would have to look for a lot more than just oxygen in their atmospheres.Another possible impact of the findings by the team involves space exploration—if an apparatus could be built that could continually knock oxygen molecules out of the carbon dioxide breathed out by astronauts, they wouldn’t have to carry oxygen tanks or use plants to do the conversion, making the whole process much more efficient.
© 2016 Phys.org More information: S. O. Kepler et al, A white dwarf with an oxygen atmosphere, Science (2016). DOI: 10.1126/science.aad6705 Abstract Researchers have discovered a white dwarf star with an atmosphere dominated by oxygen, a type of white dwarf that has been theorized to exist but not identified to date. The finding could challenge the textbook wisdom of single stellar evolution, and provide a critical link to some types of supernovae discovered over the past decade. As relatively small stars (those less than ten times the mass of our sun) near the end of their lives, they throw off their outer layers and become white dwarf stars, which are very dense. The high gravity that occurs under such density causes the lighter elements, such as hydrogen or helium, to float to the surface of the star, masking the heavier elements below. While combing through data from the Sloan Digital Sky Survey (SDSS), Souza Oliveira Kepler et al. identified SDSS J124043.01+671034.68, a white dwarf with its outer layer of light elements stripped away, revealing a nearly pure layer of oxygen. Several different theories have predicted that the outer layer of a white dwarf can be stripped, but identification of SDSS J124043.01+671034.68 provides the first evidence of this phenomenon. One possibility is that interactions with a nearby companion in a binary star caused SDSS J124043.01+671034.68 to bare its oxygen envelope. Another possibility is that a massive pulse of burning carbon from the center of the star, emulating outwards, eliminated the lighter elements. A Perspective by Boris Gänsicke provides further context. 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 What are the different kinds of supernovae? A trio of researchers, two with the Federal University of Rio Grande do Sul and the other with Universität Kiel has discovered something very unique—a white dwarf with an atmosphere that is made almost completely of oxygen. In their paper published in the journal Science, Kepler de Souza Oliveira, Detlev Koester and Gustavo Ourique describe how they came to discover the oddity and offer some ideas on how it might have come to exist. Boris Gänsicke with the University of Warwick offers an essay on the work by the team in the same journal issue.White dwarfs come about, scientists believe, when a relatively ‘small’ star runs out of fuel, losing its outer layer as the star shrinks down due to gravity—the stronger gravitational force then usually causes the heaviest elements to be drawn towards the core pushing the lighter ones, such as helium and hydrogen to the surface. But this new white dwarf is different, the researchers report, instead of the usual mix of light elements at the surface, there is almost nothing but pure oxygen. Nicknamed Dox, the star is the first ever of any kind to be observed to have a nearly pure oxygen outer layer. Journal information: Science Citation: White dwarf with almost pure oxygen atmosphere discovered (2016, April 1) retrieved 18 August 2019 from https://phys.org/news/2016-04-white-dwarf-pure-oxygen-atmosphere.html Image of Sirius A and Sirius B taken by the Hubble Space Telescope. Sirius B, which is a white dwarf, can be seen as a faint pinprick of light to the lower left of the much brighter Sirius A. Image: NASA, ESA Such a phenomenon has been predicted before, but most in the field never believed that such a star would ever be observed, thus it came as quite a surprise to team member Gustavo Ourique as he poured over thousands of simple graphs made from data generated by the New Mexico observatory. It was not until further tests were run that it was confirmed that the unique graph he had found turned out to represent data from the strange white dwarf. Though it is impossible at this point to say with any certainty what caused the unique star formation, the researchers believe it is likely tied to an earlier event—they believe that Dox may once have been one of a pair of stars forming a binary system, and as the other star ran out of fuel it would have become a red giant, which would perhaps have been able to interact with its partner directly. The outcome, the researchers suggest could have laid the groundwork for a later explosion that caused Dox to lose its other lighter elements, leaving mostly pure oxygen in its outer layer.
Explore further Thanks to the radial velocity (RV) technique, over 600 exoplanets have been detected so far, but the number of known RV planets orbiting evolved stars is still small. Filling this gap is needed in order to provide more comprehensive image of the variety of extrasolar planetary systems.One astronomical survey, which has the potential of improving our knowledge about planets orbiting evolved hosts, is the Okayama Planet Search Program. Recently, a team of Japanese astronomers, led by Takuya Takarada of the Tokyo Institute of Technology, has reported the finding of three such exoplanets of this category, by conducting RV measurements at the Okayama Astrophysical Observatory (OAO) in Japan.”We here report two new planetary systems around evolved stars: 24 Boo and γ Lib. This result is based on RV measurements performed at OAO with the 1.88-m reflector and HIDES,” the researchers wrote in the paper.24 Booties (24 Boo for short) is a star of spectral type G3IV, similar in mass to our sun, but almost 11 times larger. Takarada’s team found that this star is orbited by a gas giant planet, which received designation 24 Boo b, every 30.35 days at a distance of about 0.19 AU from the host. The researchers estimate that the minimum mass of the newly found planet is 0.91 Jupiter masses.Gamma Librae, or γ Lib, is around 11 times larger than the sun, has a mass of approximately 1.47 solar masses, and is of spectral type K0III. The astronomers discovered that this star hosts two gas giant planets—γ Lib b and γ Lib c, with minimum masses of 1.02 and 4.58 Jupiter masses respectively. Located about 1.24 AU from the parent star, γ Lib b needs about 415 days to fully orbit its host, while γ Lib c has an orbital period of nearly 965 days as it is separated from the star by approximately 2.17 AU.Notably, both 24 Boo and γ Lib have low metallicities (-0.77 and -0.30 respectively) among the giant stars hosting planetary companions.In concluding remarks, the astronomers emphasize what makes their discovery unique. They note that the planet 24 Boo b has the shortest orbital period ever found around evolved stars with a stellar radius larger than 10 solar radii. Furthermore, γ Lib turns out to have the second lowest metallicity among the giant stars with multiple planetary systems. The researchers also add that the orbital period of γ Lib c is about 2.33 longer than γ Lib b, noting that such ratio is rare among planetary systems around giant and dwarf stars. Using radial velocity method a group of Japanese astronomers has found that two evolved stars, namely 24 Booties and Gamma Librae, are orbited by gas giant planets. They discovered that 24 Booties hosts one planet, while Gamma Librae is circled by two alien worlds. The finding is detailed in a paper published April 11 on arXiv.org. Top: The observed RVs and the best-fit single Keplerian curve for 24 Boo. The horizontal axis is the orbital phase. The derived stellar jitter is also included in the error bar. Red circles and green triangles are data taken with slit- and fiber-mode, respectively. Bottom: The RV residuals to the orbital fitting. Credit: Takarada et al. 2018. Citation: Japanese astronomers discover gas giant planets orbiting evolved stars (2018, April 16) retrieved 18 August 2019 from https://phys.org/news/2018-04-japanese-astronomers-gas-giant-planets.html Four new ‘hot Jupiter’ exoplanets discovered More information: Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR, arxiv.org/abs/1804.04008AbstractWe report the detection of planets around two evolved giant stars from radial velocity measurements at Okayama Astrophysical observatory. 24 Boo (G3IV) has a mass of 0.99M⊙, a radius of 10.64R⊙, and a metallicity of [Fe/H]=−0.77. The star hosts one planet with a minimum mass of 0.91MJup and an orbital period of 30.35d. The planet has one of the shortest orbital periods among those ever found around evolved stars by radial-veloocity methods. The stellar radial velocities show additional periodicity with 150d, which are probably attributed to stellar activity. The star is one of the lowest-metallicity stars orbited by planets currently known. γ Lib (K0III) is also a metal-poor giant with a mass of 1.47M⊙, a radius of 11.1R⊙, and [Fe/H]=−0.30. The star hosts two planets with minimum masses of 1.02MJup and 4.58MJup, and periods of 415d and 964d, respectively. The star has the second lowest metallicity among the giant stars hosting more than two planets. Dynamical stability analysis for the γ Lib system sets a minimum orbital inclination angle to be about 70∘ and suggests that the planets are in 7:3 mean-motion resonance, though the current best-fitted orbits to the radial-velocity data are not totally regular. © 2018 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.
The works of art done by Sun Deep reflect her philosophy, her life’s experiences and her love and passions, overwhelmingly inspired by everyday miracles and beauties in Nature. Nature inspires her life’s philosophy.She integrates elements from nature’s garden into her artwork, reflecting on our oneness and connectedness with Nature. The artwork showcases just a small sample of God’s living canvas, as she hopes to inspire others to stop and contemplate on the beauty and peace in his complex patterns and designs. Momentarily escaping the human construct. Also Read – ‘Playing Jojo was emotionally exhausting’Gingko Biloba Tree: The yellow leaves are all natural leaves, from the Gingko Biloba tree in her Chicago neighbourhood. These leaves were handpicked in November 2013, dried and pressed using natural elements, without the use of any chemicals or preservatives. Angel: The bright yellow Bracteantha flowers on the angel’s blue shawl are all natural. So are the orange cosmos and the yellow limonium petals in her shawl, the camouflaged gypsophila in her wings and the green grass earrings. These leaves were handpicked between 1997-2014 from India and USA. The angel is painted with acrylics on canvas. Frame is from Picturesque in Santushti Market. Also Read – Leslie doing new comedy special with NetflixBlue Ice on Fire: The unicorn’s horn, tail and mane are embellished with all natural ferns and flowers, from my Chicago neighborhood. The foliage was handpicked in the summer of 2014. The fire has petals of the yellow straw flower camouflaged in its flames. The two daisies are to depict cosmic bodies The horse and the fire is painted with acrylics on canvas. Unframed.Peacock Lady: In search – This artwork was the focus of a solo exhibition in a local Chicago gallery. The dress of the peacock lady is embellished with natural foliage. The foliage was handpicked between 1997-2014, The dress has camouflaged flowers and wild grass.
Directorate of Revenue Intelligence (DRI) has impounded 6 luxury aircraft from a company owned by the Fortis Group for alleged duty evasion to the tune of Rs100 crore. Six aircraft, including
Kolkata: The state Water Resource Investigation & Development (WRID) department will soon come out with Groundwater Act for putting a leash on indiscriminate extraction of groundwater, which is depleting by leaps and bounds.”We cannot deny the fact that groundwater level is reducing and we feel that it is high time to take measures to prevent indiscriminate extraction of groundwater. We are in the process of preparing a scientific database, classifying all the 341 blocks in the state into three categories- critical, semi critical and safe and accordingly prepare a roadmap for scientific use of groundwater in near future. Groundwater extraction for drinking will be given top priority,” a senior official of the department said. Also Read – Rain batters Kolkata, cripples normal lifeIt may be mentioned that groundwater is used for drinking, agriculture and by the industry and there are a number of agencies that are responsible for its extraction. Apart from designating blocks based upon the three parameters, the department will also come out with a direction for the agencies about how much water extraction will be allowed for agriculture or industry purposes. “If we feel that drawing groundwater for agriculture or for industry at a particular block needs to be stopped, we will do the needful,” the official maintained. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedAccording to the official, the exercise of assessment of extraction of groundwater and recharging of water at a particular block, has been undertaken by State Water Investigation Directorate (SWID)- an independent directorate under the state WRID department, jointly with the Central Groundwater Board. The work will be based on water table data available from the hydrographic stations across the state, as on March 2017. The methodology that will be followed for the assessment, will be based on the guidelines framed by Groundwater Estimation Committee (GEC) in 2015, which is a standard pattern that should be followed across the country for assessing groundwater level. The assessment work has started a month ago and the target set for completion is October this year. The department is also laying emphasis on setting up more hydrographic stations in the state as they ensure accuracy of data. At present, there are 2,500 hydrographic stations in the state and the department is planning to have one such station at every Gram Panchayat in the state. The earlier study that was done around five years ago, had identified only one area -Goghat I in Hooghly as critical, 70 as semi-critical and the rest as safe. The department is hopeful that a notification in this regard will be brought out within the calendar year and will be circulated among all stakeholders to regulate the use of groundwater.
Engaging students who have considerable influence over their peers can lead up to 30 per cent reduction in bullying incidents in schools, says a new study.“We think the best way to change social norms is to have these student influencers speak in their own voices. Encouraging their messages to bubble up from the bottom using a grassroots approach can be very powerful,” said lead author Elizabeth Paluck from Princeton University in New Jersey, US.The researchers engaged groups of influential students in 56 New Jersey middle schools to spread messages about the dangers of bullying and school conflict. Also Read – ‘Playing Jojo was emotionally exhausting’Using messaging platforms such as Instagram, print posters and colourful wristbands, the selected students were encouraged to discuss in their own voices positive ways to handle conflict, using terms with which their peers could identify. The research team wanted to test whether certain students, who they label “social referents” or social influencers, have an outsized influence over school climate or the social norms and behavioural patterns in their schools. Also Read – Leslie doing new comedy special with NetflixThese social referents were not necessarily the most popular kids school-wide, but rather students who demonstrate influence within their smaller peer group. All activities were designed to test whether, by making their anti-conflict stance well known, these social influencers could shape their peers’ behaviours and social norms.The study was published in the journal of Proceedings of the National Academy of Sciences (PNAS).
Using bio-sensors to look at brain activity, the researchers saw that older participants wandered into a brief “mental time travel” when trying to recall details. This journey into their subconscious veered them into a cluttered space that was filled with both relevant and irrelevant information. This clutter led to less confidence, even when their recollections were correct, the study said.Cluttering of the brain is one reason older people are more susceptible to manipulation, the researchers said. Also Read – ‘Playing Jojo was emotionally exhausting’“This memory clutter that’s causing low confidence could be a reason why older adults are often victims of financial scams, which typically occur when someone tries to trick them about prior conversations that didn’t take place at all,” said lead researcher Audrey Duarte, associate professor of psychology at Georgia Institute of Technology in the US. The findings appeared online in the journal ‘Neuropsychologia’.For the study, the researchers showed that older adults (60 years and up) and college students a series of pictures of everyday objects while electroencephalography (EEG) sensors were connected to their heads. Also Read – Leslie doing new comedy special with NetflixEach photo was accompanied by a colour and scene. Participants were told to focus on one and ignore the other. An hour later, they were asked if the object was new or old, and if it matched the colour and the scene.Neither age group was very good at recalling what they were told to ignore. Both did well in remembering the object. The researchers noticed differences in brain activity between the young and old. Older adults’ brains spent more time and effort trying to reconstruct their memories.
From high-altitude places to spots near the waters, densely populated cities to the dense jungles – there are a lot of travel lovers who wish to explore every corner of the world but arent able to do so due to financial constraints. But there’s a solution.There are some top tips and tricks with which people can earn a living and get their trips sponsored while travelling peacefully around the globe. Experts list how.Put your language skills to use: If you possess leadership qualities, and have commendable knowledge of two or more foreign languages, you will find many opportunities to put all of that to work. You can work as a tour guide for travellers and earn a pretty hefty sum of money in exchange. Also Read – Add new books to your shelfAnother way to put your language skills to good use is by teaching English online. There are lots of portals where you can teach the language online while you are still travelling the globe, all you need is an Internet connection.Click! Click! to earn big: The scenic beauty of the places close to nature, away from the daily hustle-bustle of the city amplifies many times more from the pictures clicked by an avid photographer. If you have the skills of creating a magical spell with the camera while exploring new places around the world and are receiving huge appreciation for the same. Find the right portals, be it travel magazines, newspapers, or even websites, share the pictures and get ready to earn some handsome bucks to travel more and more. Also Read – Over 2 hours screen time daily will make your kids impulsiveSpread the magic through social media: Thanks to the digitalisation wave, an avid traveller is blessed with platforms like Facebook, WordPress, Twitter and Instagram to share their story with travel lovers around the world with some easy-breezy tips and tricks to survive in a new place. The more engaging and helpful your insights are to the audience, the more followers will be there on the wall, ultimately making you a renowned personality of the social media world. And, once this gets done, brands and top-notch corporates will approach you for paid collaborations. First of all, even if you are a semi-decent photographer and shoot pictures of lesser known treks or difficult to see animals during your exploration quest, many magazines and online sites will be ready to pay for your photographs.Next is if you maintain a blog or social profile of your own and post original content (travel experiences) at regular intervals then slowly your follower base will grow exponentially as online travel researchers are hungry to hear first hand experiences.As you grow traction on your blog and social media, there will be many hoteliers, brands, travel companies offering you free trips, free stays or monies in lieu of their promotion. At the same time, you also have to maintain a clear travel niche (trekking, wildlife, homestays, remote countries) of your own and keep delivering original content regularly.
Kolkata: The students of four Ramakrishna Mission Schools have ranked within 10 of the merit list of the HS examination results of which were announced on Monday. Five students from Narendrapur Ramakrishna Mission have ranked between 5 and 9 in the merit list. Seventy students have scored more than 90 percent, 75 have got above 85 percent and 76 students have got above 75 percent. Four students of Ramakrishna Mission Boys’ Home High School, Rahara, have ranked between 5 and 9 in the merit list. Out of 129 students who appeared from this school, 57 got more than 90 percent marks. 100 students have got above 80 percent while another 107 scored more than 75 percent. Aritra Mondol, an orphan student, has scored 472/500 in Arts. Out of the 32 tribal students in Ramakrishna Mission Vidyamandira, Jhargram, 18 have got more than 75 percent marks. Two from Midnapore Ramakrishna Mission came 9 and 10 in the merit list while one from Malda claimed theighth position in the merit list.
Darjeeling: Chief Minister Mamata Banerjee has expressed condolences on the demise of eminent Nepali litterateur Haiman Das Rai Kirat. The 101-year-old passed away on Sunday night at Malbazar Hospital.In her message, the Chief Minister wrote: “His death is an irreparable loss to the world of Nepali literature. I express my heartfelt condolence to his bereaved family members.” Anit Thapa, chairman, GTA also visited the writer’s house at Uttarey Gorubathan in the Kalimpong district. Kirat’s funeral will be held in Uttarey on Tuesday. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: Mamata”The writer had painstakingly preserved many important documents, manuscripts and books. The GTA would like to construct a library in his residence,” stated Thapa.Along with this Thapa also stated that condolence prayer meetings will be held in all GTA-run schools on July 17 in the morning when the schools resume after the ongoing recess. The executive director, Department of Education, GTA has issued a notification to this effect. Kirat, who was a teacher by profession had received the Rashtrapari Sikshak Award in 1994. He was also the recipient of Sahitya Academy Award and the Life Time Achievement Award by the GTA. He contribution towards promotion of Nepali literature has been immense. Along with his own writings, Kirat in the early part of his life had been a publisher. He has published numerous books of eminent Nepali authors in the 1950s and 1960s when Nepali books used to be published from Varanasi. He is survived by one son and three daughters. His wife had passed away a few years ago.
When you think about what dinner might have been like 8,000 years ago in a village in Turkey, you might assume the cuisine would be fairly limited. But that would be … wrong. These families dined on a wide range of food, including dairy, cereal grains, legumes, and non-dairy animal proteins, some of the food processed and mixed into porridge or soups.By analyzing the oils, fats, and waxes absorbed into the pottery, mostly bowls and jars, used in the Neolithic Era, researchers determined that in Çatalhöyük in Anatolia, families ate mixes of cereal, dairy, and meat products, while particular vessels may have been reserved for specialized foods, like cow’s milk and milk whey.Catalhoyuk Konya (Turkey). Built in 7500 BC.Due to this analysis, the researchers know that people consumed dairy products from sheep, goats, and cows. The meat came from goats, sheep, cows, and deer. Cereals included barley and wheat, and legumes included peas and vetches.“Interestingly, many of the pots contain evidence of multiple food types in a single vessel, suggesting that the residents mixed foods in their cuisine, potentially as porridges or soups, or that some vessels were used sequentially for different food items, or both,” according to a study published in the Nature issue of October 2018.Examples of calcified deposits from modern and ancient vessels at Çatalhöyük. Photo by Nature/Hendy et al CC BY SA 4.0“Here we have the earliest insight into people doing this kind of milk processing,” Hendy said in an interview with Smithsonian. “Researchers have found milk in pottery in earlier times, but what’s exciting about this find and this technique is that we can see actually how people are processing their dairy foods, rather than simply detecting its presence or absence.”This method of analyzing diets thousands of years ago is gaining ground among researchers.Summary of dietary-derived protein identifications. Photo by Nature CC BY SA 4.0“In Southwestern Asia, Africa and Europe, lipid residue analysis has fundamentally advanced our understanding of the development of early pastoral economies,” said the report.Researchers were able to get very detailed ideas of what was eaten.“Archaeobotanical remains show a diversity of plant remains at Çatalhöyük West, such as cereals (einkorn wheat, emmer wheat, new-type glume wheat, free-threshing wheat and barley), wild mustard, pulses (lentil, pea, bitter vetch, chickpea, grass pea) and fruit and nuts (hackberry, pistachio and Prunus species),” concluded the report.The Neolithic Site of Çatalhöyük, Anatolia.The study authors speculate that the proteins survived in their potsherds because of limescale buildup on the vessels. But scientists won’t know just how long proteins can survive until they pull samples from many more sites of different ages and different environments.Çatalhöyük is considered one of the best preserved Neolithic sites in the world. It is located southeast of the Turkish city of Konya, about 90 miles away from Mount Hasan.Archaeological excavations at Çatalhöyük.The settlement was founded around 7500 BC and was inhabited for over two millennia. Houses were built directly next to each other in every direction.Since the 1960s, excavations have uncovered a densely packed Neolithic (New Stone Age) settlement which dates back 9,000 years.Today all that is visible on the surface of Çatalhöyük is two mounds: the smaller and more recent to the west of the site and the larger and more ancient to the east. When researchers dig below the surface, they find complicated societies.Read another story from us: World’s Oldest Intact Shipwreck Found – 2,400-yr-old ‘Ship of Odysseus’Teams of experts from around the world are currently working there to understand the lives of the people who lived here.
Sports marriage proposals are usually the cheesiest. No little girl dreams of one of the most important moments of her life taking place on a jumbo tron, surrounded by beer swilling knuckleheads.But last night at halftime of the Siena/Manhattan Metro Atlantic match up, one boyfriend, set up an elaborate proposal where he arranged for his girlfriend to be selected for a half court shot contest, while he waited behind the action, dressed in a Dunkin Donuts mascot costume.Even though the event was a set up, the girlfriend went off script by burying the half court heave. Following the amazing make, the boyfriend revealed himself from the mascot costume, took a knee and proposed. Luckily, she said yes and didn’t just take the money and run.Good luck to the happy couple!! Most marriages end in divorce. Advertisement Here’s the video:UNREAL @SportsCenter TOP 10. And she made it @TWCNewsAlbany pic.twitter.com/i5IcpQyVrS— Marisa Jacques (@MJacquesTWCNews) February 17, 2017
The Woosley wildfires have been raging in Southern California and have caused massive loss of property and unfortunately some loss of life, but within the devastation and tragedy are some incredible stories of survival.Malibu resident Rebecca Hackett filmed her death defying escape as she attempted to navigate through smoke and flames with practically zero visibility after high winds stoked the fire threatened to engulf her. She had been out to a local ranch to check on horses she keeps there, but relative calm turned into a raging inferno in a matter of minutes due to the high winds.The video is terrifying and will have your heart racing, but luckily she made it out even though the video doesn’t show it. Keep those affected by the fire in your thoughts. This is a massive disaster affecting real lives.Absolutely TERRIFYING video of California woman (Rebecca Hacket) driving through the raging fire: https://t.co/EaM72VTJq1 @joerogan pic.twitter.com/eiKYVthFmN— Omar Baddar (@OmarBaddar) November 11, 2018 Advertisement Here’s Ms. Hackett describing how she ended up cheating death:
3 min read Free Webinar | Sept 5: Tips and Tools for Making Progress Toward Important Goals Opinions expressed by Entrepreneur contributors are their own. June 12, 2014 Attend this free webinar and learn how you can maximize efficiency while getting the most critical things done right. No matter how diligent you are about your diet, there’s likely one area where you’re a bit of a slacker: What you drink. The beverages we consume can have a big impact on our health, but tracking every ounce of liquid that passes your lips can be a huge hassle.Enter Vessyl, a smart cup that can determine not only how much liquid is inside it, but also what that beverage is. Yes, really.Vessyl was designed by Jawbone’s Chief Creative Officer Yves Behar, and is the culmination of seven years of work for CEO Justin Lee. The cup knows the difference between Tropicana OJ and the store brand, and will win the Pepsi challenge every time. Even better, if knows the caloric, caffeine and even protein content of that drink and will track that information and more throughout the course of your day. It even works with that pint of beer or glass of wine you grab with friends after work.Related: A Venture Capital Firm Just Named an Algorithm to Its Board of Directors“Tracking what you consume is as important if not more important than tracking the calories that we’re burning through exercise,” says Lee. “The goal of the Vessyl was to create something that is about what matters to you.”For a closer look at Vessyl, check out this video:Related: Radiation-Blocking Underwear Also Protect Men’s FertilityFor some, their goal might be to lose weight. To others what matters might be their caffeine intake throughout the day. If you’re paying attention to every cup of joe, you can make sure you’re alert for that big meeting but not jittery. When you pour a liquid into Vessyl, information about the drink you’re consuming appears on the side, and the mobile app starts tracking every sip. Accidentally knock the cup over or decide to pour something out, and Vessyl won’t track it as consumption.Along with nutritional information, Vessyl also keeps track of your hydration throughout the day. The cup takes into account your nutritional needs and location, creating an optimal hydration score for you it calls Pryme. Much like you might use a fitness tracker to ensure you’re moving enough, Vessyl displays Pryme as a line on the side of the cup to make sure you’re drinking enough. The white line creeps up the side the more your drink, and turns blue when you’ve hydrated enough. Wait a few hours, and the line will start creeping back down, encouraging you to grab another glass of water.While they’ve already got a prototype up and running, Vessyl isn’t quite ready for Happy Hour just yet. The company launched a pre-order campaign today to raise money for the first run of cups. When it ships early next year each one will sell for $199. Early buyers can order one now for $99.Related: Photo-Taking Contact Lenses, Giant Crab Robots and Radiation-Blocking Underwear Register Now »
6 min read Register Now » With 1.7 billion people on Facebook as of November 2015, it’s pretty safe to say that a lot of your target audience, clients and customers are active on the world’s largest social-media platform.Related: Facebook Advertising Is Where It’s at, Which Is Why I Spent $3 Million on ItIt should also come as no surprise that Facebook’s ads platform is the most advanced and powerful method of paid traffic advertising any of us currently have access to.That said, Big Blue (the hipsters’ name for Facebook) makes constant changes to its ads platform, causing a lot of would-be advertisers to get frustrated and quit before seeing any real return from their efforts.No matter how many client campaigns my agency and I run, I see the same few things tripping up advertisers, causing them to throw up their hands and walk away when they’re so close to success. Here are seven ways you can run back to Facebook, and with a few little tweaks, get your ad campaigns to actually produce results and positive ROI, rather than empty your pockets of money.1. Get your research in order.Facebook has a slick tool called “audience insights” that can allow you to enter an interest and then gather data and other interests that your target audience might also be interested in.The first tab in the interface (demographics) will let you look up the gender and age of the interest you’ve entered.The second tab (page likes), will list other interests that your target audience may be interested in. It also lists them by relevance and affinity, a measure of how likely someone in one interest group is to like the other interest group.2. Separate your ad sets.Many folks will take their research from step one, gather their interests and then lump them all into one big list on the Facebook Ads Manager in hopes of reaching a large target audience. This is a grave mistake that will cost you far more in ad spend. And while you might get results, you’ll have no idea which interest brought the best results.The solution: Include one interest per ad set so you can look out for the interests that bring the best results at the lowest cost.Related: How My Company Got 1,025 Likes, 485 Shares and 50 Comments on Facebook In 7 Days3) Make changes slowly.To get the best bang for your advertising buck, you may find it tempting to adjust ad copy, images, targeting and budget early in the game, but it’s actually better to make changes slowly and infrequently, to allow the Facebook algorithm to adjust.I find that it takes three-to-five days for the original ad set to gain enough reach to get meaningful data that I can analyze. Every time you mess with an ad, it is submitted for review and the process starts all over again.If you absolutely must try different copy, or want to swap images, create a new ad and run both to see which one gets better results. You might actually be surprised by which ad wins.4) Watch the data and adjust accordingly.This one is huge! There is so much that can go wrong by ignoring the data that Facebook is providing you.Yes, it will tell you important information like the age, gender, placement (which device) and country or region that is bringing you the best results, but with a few tweaks to the performance column, you can also see the ad relevance score. This is based on a scale of 1 to 10, with 1 being the least relevant and 10 the most.The more relevant your ad is, the less you pay — and the more it gets shown and the lower the cost.You can also see your positive and negative feedback scores. These are a bit of a mystery, but the basic gist is that if you write a great ad and people like it and share it, you’ll get higher positive feedback. If the viewers don’t like your ad and are constantly hiding it so they don’t see it, you’ll get a higher negative feedback score.Run your ads too long with a high negative feedback score, and you risk getting your Facebook ads account shut down.5) Always be testing.We run hundreds of ads for various clients, and we’re constantly making tweaks and variations. We’ll test new interests to target, as well as split-test ad images, copy text and calls to action, a button on the ad vs. no button, etc.It can be very taxing to always be swapping things out and watching the data, but your long-term success with Facebook ads depends on it. Ads get stale very fast, and their costs start to rise as their effectiveness decreases.We combat this through testing and tracking results.6) Cull the losers and scale the winners.There will be ads that simply do not produce results. That’s a fact of life when it comes to Facebook ads. The faster you can kill the losing ads and scale the winning ads, the sooner you’ll see long-term results.Each ad set can be turned around in three to five days, which, in most cases, will allow the ad to show enough data for you to know if it’s going to produce results or not.But, pause the losing ads rather than deleting them. This will allow you to see the data that didn’t work so you don’t make the mistake of re-running the same losing ad.7. Hand off the dirty work to someone else.Look, running Facebook ads is not for the faint of heart. No matter how many entrepreneurs I speak to, spending time on Facebook ads is not high on their list of daily tasks they want to invest their time into.Related: 5 Tips on Creating a Killer Facebook Ad CampaignYou’ll get further faster by focusing on the growth of your business while someone else looks after all the research, testing and tweaking with Facebook ads. Attend this free webinar and learn how you can maximize efficiency while getting the most critical things done right. Opinions expressed by Entrepreneur contributors are their own. March 1, 2016 Free Webinar | Sept 5: Tips and Tools for Making Progress Toward Important Goals