In this illustration of the frequency-controlled magnetic memory, a magnetic spherical probe attached to the end of a soft cantilever is used to detect magnetization dynamics in the vortex-state nanodisk underneath. Image credit: B. Pigeau, et al. More information: B. Pigeau, et al. “A frequency-controlled magnetic vortex memory.” Applied Physics Letters 96, 132506 (2010). Doi:10.1063/1.3373833Nanomagnetism Group webpage: Frequency control of vortex core polarity in a magnetic nanodisk iramis.cea.fr/spec/Phocea/Vie_ … marquant&id_ast=1567 Copyright 2010 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. Lava flows reveal clues to magnetic field reversals (PhysOrg.com) — Using magnetic nanodots in the vortex state, researchers have designed a new kind of non-volatile memory that could offer increased speed and density for next-generation non-volatile random access memories (RAM). The new design takes advantage of magnetic vortices’ ability to store binary information as positive or negative core polarities, which can be controlled by simply changing the frequency of the rotating vortex cores of the nanodots. Citation: Magnetic vortex memory shows memory potential of nanodots (2010, April 21) retrieved 18 August 2019 from https://phys.org/news/2010-04-magnetic-vortex-memory-potential-nanodots.html Explore further The new technique, called frequency-controlled magnetic vortex memory, was developed by a team of researchers, B. Pigeau, et al., from France, Germany, and the US. Their study is published in a recent issue of Applied Physics Letters.As the researchers explain, the concept of using magnetic nano-objects to store binary information for magnetic RAM has previously been investigated, but it’s been difficult to find a mechanism to reverse the magnetization inside individual nano-objects. Here, the researchers achieve this reversal by using microwave pulses in combination with a static magnetic field. In this scheme, large and small rotating core frequencies are associated with positive and negative core polarities, respectively. In a positive core polarity, the core is parallel to the applied magnetic field, while in a negative core polarity, the core is antiparallel to the applied magnetic field. An extremely sensitive magnetic resonance force microscope (MRFM) is used to address the resonant frequency of magnetic nanodots’ vortex core rotations, allowing the researchers to control the polarity states of individual nanodots. The researchers’ memory design consists of an array of magnetic nanodots and an electromagnet that generates a static magnetic field perpendicular to the array of dots. The MRFM’s small (800-nanometer-diameter) magnetic probe can scan the one-micrometer-diameter nanodots and locally control this magnetic field. To read the core polarity state of a nanodot, a weak microwave magnetic field is used to read the rotating core frequency with the probe. As the researchers explain, the microwave magnetic field used to read the polarity state must be weak enough so that the core polarity is not reversed during the reading sequence. By increasing the strength of this applied microwave magnetic field, it is possible to reverse the nanodot’s core polarity, hence to write data. Once reversed, the core polarity is out of resonance with the writing pulse so that it cannot be switched back unless the pulse’s frequency is changed. The researchers demonstrated this writing technique hundreds of times without failure, and without affecting neighboring nanodots.“This dynamical reversal mechanism is of fundamental interest but also has potential application in information technology, with the vortex core polarity coding the binary information,” coauthor Grégoire de Loubens, from the Commissariat à l’Énergie Atomique de Saclay in Gif-sur-Yvette, France, told PhysOrg.com.“In sum, our frequency-controlled magnetic vortex memory prototype has two main advantages,” he said. “Owing to the frequency discrimination allowed by a small perpendicular bias field, there is no need to control the circular polarization of the microwave field and to precisely time the writing pulse as it has to be in zero field. Also, deterministic and local addressing in a large array of memory cells is easily obtained by using the stray-field of the MRFM probe, that can be scanned laterally.”The researchers plan to improve the new frequency-controlled magnetic memory in several ways, such as by arranging the dots in a regular square array and increasing the dot aspect ratio. They are also considering replacing the MRFM, which contains moving parts, with local electrical detectors for the reading process. In addition, they hope to investigate stacking dots of different aspect ratios (and different resonance frequencies) on top of each other to create a multiregister memory. 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.
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. © 2010 PhysOrg.com (PhysOrg.com) — Having a battery on your mobile device that runs out of juice while you are on the go is one of the world’s biggest downers. Manufacturers know this, and they move to create devices with longer and longer battery lives. Of course, not all devices can run for a long length of time, and no matter how hard the makers of them may try, there will always be enhanced expectations that the technology will run longer and be a smaller part of the device. Panasonic releases wireless solar charging table One company, Pixel Qi, is looking to help bring batteries to a new forefront and make them easier to be re-powered. The system, which was shown off at Computex 2011, consisted on a tablet PC that can run completely on solar power. The system will use a small solar panel to produce roughly 1W of power, which is enough to run both the Pixel Qi screen and the ARM-based motherboard in the system. This makes perfect sense, since Pixel Qi is known for creating low power usage screens that can easily be read in direct sunlight. The solar panel attached to the system is expected to cost about $3 to buy. This panel allows the system to run without using battery power, as long as the sun is shining. Depending on where you live, or when you like to work, this could mean that you can go for weeks or months without having to charge your device. There is no word yet on when an integrated system will be on sale to the public, or what that system is expected to cost for end users who are interested in making the purchase. Citation: Pixel Qi creates a solar powered tablet pc (2011, June 6) retrieved 18 August 2019 from https://phys.org/news/2011-06-pixel-qi-solar-powered-tablet.html Explore further
Play A projectile traveling at 22.2 meters per second generates four cracks in a 1-millimeter-thick sheet of Plexiglas. Credit: N. Vandenberghe/Aix-Marseille Univ. / Physics Focus Based on the analysis of 100 panes, the researchers found correlations between the number of cracks in the materials and the speed at which the balls were fired—generally, the number of cracks was directly proportional to the square root of the impact speed. The thickness and brittleness of the target had an effect on the results as well. After further analysis, they were able to create mathematical formulas that could predict the number of cracks that would appear, or working backwards, could derive the speed of the projectile after noting the characteristics of the glass or plastic and counting the number of resulting cracks.While the team’s results are highly specialized, dependent on a number of controllable factors, the researchers believe their study and results might prove useful in many other areas of study, from forensics to astrophysics or even to archeology. (Phys.org) —A team of researchers from Aix-Marseille University in France has found that the number of cracks that appear in a pane of glass or other brittle material resulting from a projectile strike is related to the speed of the striking object. The team describes test trials, observations and results in their paper published in the journal Physical Review Letters. PausePlay% buffered00:0000:00UnmuteMuteDisable captionsEnable captionsSettingsCaptionsDisabledQuality0SpeedNormalCaptionsGo back to previous menuQualityGo back to previous menuSpeedGo back to previous menu0.5×0.75×Normal1.25×1.5×1.75×2×Exit fullscreenEnter fullscreen More information: Star-Shaped Crack Pattern of Broken Windows, Phys. Rev. Lett. 110, 174302 (2013) prl.aps.org/abstract/PRL/v110/i17/e174302AbstractBroken thin brittle plates like windows and windshields are ubiquitous in our environment. When impacted locally, they typically present a pattern of cracks extending radially outward from the impact point. We study the variation of the pattern of cracks by performing controlled transverse impacts on brittle plates over a broad range of impact speed, plate thickness, and material properties, and we establish from experiments a global scaling law for the number of radial cracks incorporating all these parameters. A model based on Griffith’s theory of fracture combining bending elastic energy and fracture energy accounts for our observations. These findings indicate how the postmortem shape of broken samples are related to material properties and impact parameters, a procedure relevant to forensic science, archaeology, or astrophysics.Physics Focus Over the years, scientists have worked diligently to come up with different types of glass, ceramics, plastics, etc. that best suit their intended purposes. However, the current researchers note that little if any effort has gone into the study of the cracking patterns that result when objects such as rocks or bullets strike panes of glass or brittle plastics. To address this question, the researchers conducted trials at a shooting range.In order to determine any relationship between the cracks that appear in such structures and the speed with which they are struck, the researchers shot small metal balls at both glass and Plexiglas targets of varying thicknesses (0.5 mm to 3 mm thick). They used a gun that allowed for firing the balls at different speeds (up to 432 kilometers per hour). To observe what was occurring during impact, the team used high-speed video cameras. © 2013 Phys.org Citation: Researchers find number of cracks in struck glass related to speed of projectile (2013, May 2) retrieved 18 August 2019 from https://phys.org/news/2013-05-struck-glass-projectile.html Explore further Group uses controlled cracking for nanofabrication Journal information: Physical Review Letters 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.
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. © 2014 Phys.org (Phys.org)—A team of researchers analyzing data from a telescope aboard the European Space Agency’s Planck spacecraft gave a presentation at Planck 2014 recently—a meeting held in a palace in Italy—to outline findings based on data from the spacecraft and also to discuss the implications of what has been found. Artist’s impression of the Planck spacecraft. Credit: ESA/AOES Medialab Citation: Researchers report on data analysis from Planck spacecraft (2014, December 4) retrieved 18 August 2019 from https://phys.org/news/2014-12-analysis-planck-spacecraft.html Astronomy & Astrophysics: Planck 2013 results The spacecraft was active through the years 2009 through 2013, collecting data related to cosmic microwave background (CMB)—a type of radiation believed to have been a released during the latter part of the birth of the universe. Cosmologists and physicists in general are eager to learn more about the CMB because it helps tie together parts of the Standard Model.Astrophysicist Nazzareno Mandolesi gave the general presentation including showing a map that depicts the direction and intensity of polarization of CMB as viewed in the full sky. He announced that observations from Planck reaffirm the standard model of cosmological inflation, but at the same time, call into question recent researchers’ claims of having found evidence of dark matter.Mandolesi reported that analysis of data from Planck doesn’t support the idea that positron excess found during prior research might be generated by dark matter, nixing ideas some researchers had put forth. The data did however, offer further evidence that dark matter makes up approximately 26 percent of the mass of known universe. He noted also that the maps created using data from Planck offer more validation of inflation theory and as a bonus is also helping to clear up a mismatch between earlier data from the craft as compared with data from NASA’s WMAP project.Data from Planck also appears to show evidence that agrees with those who have theorized that stars formed roughly 700 to 800 million years after the birth of the Universe, rather than with those who suggest it was as low as 400 million years ago. Other data from the craft has been used to offer more evidence that neutrinos come in three flavors, which when taken with other evidence, Mandolesi noted, makes the idea of a fourth type of neutrino less likely.The European Space Agency also announced at the meeting that they will be making the full Planck dataset available online beginning December 22nd. Explore further More information: www.cieffeerre.it/Eventi/event … ure-and-polarization
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 study indicates Earth’s inner core was formed 1 – 1.5 billion years ago For many years, scientists have believed that the Earth’s magnetic field is likely generated by energy that is released as the core cools and material solidifies, and radioactive decay—causing churning, the essence of the geodynamo. But, there is a problem with that idea, scientists also believe that the core did not cool enough to form an inner core, until approximately one billion years ago—that begs the questions of what caused the magnetic field to come about before there was sufficient cooling? The research pair with this new effort suggest it has to do with magnesium—they propose that it was introduced to the core during the time when the Earth was being formed, by collisions with other protoplanets, approximately 3.4 to 4.2 billion years ago. They further suggest that magnesium could make up as much as 1 percent of the material in the core, and because magnesium is only soluble in iron at very high temperatures, they believe that it is slowly precipitating out to the boundary between the core and the mantle. That process, the team notes, would leave the iron behind denser, which would cause the release of energy, which they suggest could explain the power source behind the dynamo. Their theory would explain how it is that the magnetic field has been present for so long—it would also suggest that it continues to play at least a part in how the field is generated today—with magnesium possibly driving iron convection from the top part of the core while the release of light elements from the inner core would drive convection from the bottom side.The team used computer models in developing their theory which means experiments will have to be conducted to help bolster their ideas. Two types of chemical convection in Earth’s core. Precipitating a thin layer of magnesium-rich minerals at the top of the core provides as much energy for the magnetic field as forcing silicon and oxygen out of the entire inner core. Credit: Joseph O’Rourke (Phys.org)—A pair of planetary scientists has come up with a new theory to help explain the mechanism behind the generation of the Earth’s magnetic field. In their paper published in the journal Nature, Joseph O’Rourke and David Stevenson, both with the California Institute of Technology, suggest that magnesium that made its way to the core of the planet during its early history could be the key to understanding how the magnetic field was generated in the past and what drives it in the present. Bruce Buffett with the University of California offers a News & Views piece on the work done by the team in the same journal issue. Journal information: Nature More information: Joseph G. O’Rourke et al. Powering Earth’s dynamo with magnesium precipitation from the core, Nature (2016). DOI: 10.1038/nature16495AbstractEarth’s global magnetic field arises from vigorous convection within the liquid outer core. Palaeomagnetic evidence reveals that the geodynamo has operated for at least 3.4 billion years, which places constraints on Earth’s formation and evolution. Available power sources in standard models include compositional convection (driven by the solidifying inner core’s expulsion of light elements), thermal convection (from slow cooling), and perhaps heat from the decay of radioactive isotopes. However, recent first-principles calculations and diamond-anvil cell experiments indicate that the thermal conductivity of iron is two or three times larger than typically assumed in these models. This presents a problem: a large increase in the conductive heat flux along the adiabat (due to the higher conductivity of iron) implies that the inner core is young (less than one billion years old), but thermal convection and radiogenic heating alone may not have been able to sustain the geodynamo during earlier epochs. Here we show that the precipitation of magnesium-bearing minerals from the core could have served as an alternative power source. Equilibration at high temperatures in the aftermath of giant impacts allows a small amount of magnesium (one or two weight per cent) to partition into the core while still producing the observed abundances of siderophile elements in the mantle and avoiding an excess of silicon and oxygen in the core. The transport of magnesium as oxide or silicate from the cooling core to underneath the mantle is an order of magnitude more efficient per unit mass as a source of buoyancy than inner-core growth. We therefore conclude that Earth’s dynamo would survive throughout geologic time (from at least 3.4 billion years ago to the present) even if core radiogenic heating were minimal and core cooling were slow. © 2016 Phys.org Citation: New theory suggests magnesium could be the key to understanding Earth’s magnetic field (2016, January 21) retrieved 18 August 2019 from https://phys.org/news/2016-01-theory-magnesium-key-earth-magnetic.html Explore further
The World Of Marian Anderson: A Turning The Tables Playlist Hulton Archive by NPR News Leslie J. Ureña 8.26.19 10:13am Listen to this playlist on Spotify or Apple Music.The famed African American contralto Marian Anderson is often best remembered for her legendary performance in April 1939 on the steps of the Lincoln Memorial, after segregationist policies had restricted her from appearing at venues in Washington, D.C. that were large enough to accommodate the crowds clamoring to hear her perform. Her career, however, was more than one moment in 1939 and the events that led to that fateful concert. As explored in the exhibition One Life: Marian Anderson (on view at the National Portrait Gallery until May 17, 2020), Anderson’s impact on music and American history spanned time and geography. Despite encountering prejudice, she broke barriers each step of the way. Her impact on music and American history was a cumulative one, starting in her hometown of Philadelphia and reverberating far beyond all the stages on which she performed. She sang spirituals and lieder in her local Philadelphia church and before presidents and royalty; she faced the brunt of racism from Washington, D.C. to Europe; she inspired visual artists to create compelling works; and she served as a model and mentor to generations of classical vocalists. She sometimes grappled with the labels of “symbol” or “icon” of the Civil Rights Movement, at times embracing them, and, usually, modestly pointing to her singing as the true focus of anyone’s interest.The songs listed here provide a selection of Anderson’s expansive repertory, as well as those of some of the figures whose life she influenced whether directly or indirectly.Copyright 2019 NPR. To see more, visit NPR.
Here’s a treat for art lovers. Delhi Art Gallery presents the ninth edition of its signature, biannual exhibition Manifestations this summer, with a select collection of seventy-five of the most significant names in modern Indian art, representative of its wide diversity.The exhibition brings together important works of art spanning a wide range of genres, forms, periods and styles. They are grouped by genre: abstract art, figurative art, mythology, narrative, portraiture, still-life and landscapes. Each thematic arrangement features a select collection of artworks that are milestones in Indian modernism, as well as in the development of the artistic language of several of the participating artists. Also Read – ‘Playing Jojo was emotionally exhausting’The exhibition presents a selection of works from the Indian modernist stable, especially the artists of the influential and erstwhile Progressive Artists’ Group, Bombay. It features a figurative work by MF Husain, an early abstract work from 1959 by SH Raza painted in France years before he arrived at the Bindu series he came to be known for and a portrait by FN Souza from his celebrated ‘Heads’ series that capture his unique response to a well-known Christian theme in art, the martyr St. Sebastian. KH Ara features with a rural landscape, SK Bakre with an abstract cityscape and HA Gade participates with a naturescape of a winding river dominated by glowing shades of indigo. Also Read – Leslie doing new comedy special with NetflixAn important highlight of the exhibition is Nandalal Bose’s well-known and luminous watercolour wash work from the 1930s, Untitled (Siva Drinking Poison) and an early representative landscape of Banaras by Ram Kumar. In the portrait section, the exhibition presents an alluring collection of portraits, several from the luminaries of academic painting in India – MV Dhurandhar, Abalall Rahiman, MF Pithawalla and NR Sardesai; a watercolour portrait by Rabindranath Tagore of Kadambari Devi and a wonderful 2003 portrait of a man by Akbar Padamsee in shades of auburn and red-orange that recalls the portraits and colour palette of his earlier decades. The landscape section features a wide range of artworks that represent the ‘typical’ realistic natural landscape, those that are abstract in style and content, as well as those that seem not directly related, such as Gogi Saroj Pal’s ‘human landscape’ of faces. A host of works feature from the ‘mature periods of premier modernists; and the exhibition also showcases works that were landmark in the development of the artist’s individual style. These feature neo-tantra artists such as Sohan Qadri, Biren De and GR Santosh. Manu Parekh and Shanti Dave participate with works in their distinctive artistic styles and techniques, Gieve Patel and Vivan Sundaram feature with large works on contemporary urban life and Dharamnarayan Dasgupta and Sunil Das are showcased through works featuring the Calcutta biwis and babus, and a vivid charcoal sketch of a rampaging bull, respectively. Featured in Manifestations for the first time are artists PS Chander Sheker and Shiavax Chavda. The exhibition is accompanied by a substantial, printed volume featuring colour plates of artworks by the seventy-five participating artists and contributions by some of the well-known art scholars and writers practicing in India today. DETAILWhere: Delhi Art Gallery, Hauz Khas Village When: On till 25 June
From a simple bamboo flute to ‘Naveen flute’, you have experimented with it all. What does Flutetronics have in store for your audience?This time around I have collaborated with Karsh Kale who brings in his electric beats to amalgamate with my flute. It’s a fusion that has a lot of natural influences. This album has 6 original tracks, along with 2 compositions from the last two albums- Fluid and Café Fluid.Take us through a flashback, how did this knack for experimenting with flutes come up? Also Read – ‘Playing Jojo was emotionally exhausting’Well, nobody in the family was a musician. Though my father tried out at flute, I picked it up faster (chuckles). When I was doing my diploma in Carnatic music, my father presented me a book by Professor Sabamurthy that got me into inventing different type of flutes. That’s how Naveen flute came into being; I have attached strings inside it. I keep a collection of flutes from around the world as well.What lies ahead from here, any plan of action?Well, I would let it flow. I was given my first break by Ilaiyaraaja in 1984 for a Tamil movie. From then on I have worked with composers from all over India and travelled with AR Rahman for his shows. I love playing for my band ‘NAM’ in Mumbai. We play quite often. NAM stands for Naveen and Mitra, and I collaborate with various artistes for these shows. Flutetronics is set for release on 15 April, across all platforms.
Gone are the days when a woman was considered an avatar of the goddess or a lucky charm. Today, she has become an object of pleasure, lust and has become the victim of some gory abuse and crimes. Hideous cases like that of Nirbhaya, Falak validate the plight of today’s woman.While the fire has died down, the ambers are still burning and have found a cathartic outlet in N. Swarnalatha’s art work. Her solo exhibition titled Nirbhaya reflects her angst on the plight of Indian women today. The series is dedicated to Nirbhaya, Vinothini, Vidhya and all the women martyrs who have taught lessons of bravery and self esteem world wide. Her piece of art seems to be depicting the stark reality of the state of the downtrodden women who are not allowed to learn and are judged on harsh benchmarks. Also Read – ‘Playing Jojo was emotionally exhausting’Her body of works are further divided into classes which provoke to reconsider and empathise with the pain and suffering of a woman. Some of them are called Knowledge Deprived which talks about the stark reality of the plight of the downtrodden women who are not allowed to learn. Shattered goes on to explore the pain of being a woman who is trapped in the clutches of man that is so vile and strong that she is easily directed to do what he wants. Endless talks about whenever a society goes through any change or turbulence or war, women suffer in different ways.Artist Swarnalatha has further decided to take the Nirbhaya Art Exhibition all over the metro cities in India namely Chennai, Mumbai, Kolkata, Bangalore, Kochin and finally at Washington DC. (USA) to incite and try to alter thoughts of the society. Her artworks are not for sale.AT: Open Palm Court, India Habitat Centre, Lodhi Road TILL: 24 May TIMINGS: 10 am – 8 pm
The market borrowing as per the revised estimate by these two companies during the current fiscal was pegged at Rs 12,045 crore from markets, according to the Railway Budget for 2015-16, which was tabled by Railway Minister Suresh Prabhu in Parliament on Thursday.Indian Railways Finance Corporation (IRFC) will raise Rs 17,276 crore in 2015-16 for investment in rolling stock, the Railway Budget document said.Besides, the other financial firm under Indian Railway Rail Vikas Nigam Ltd (RVNL) plans to raise Rs 379 crore through market borrowing. During 2014-15, IRFC raised Rs 11,772.60 crore while RVNL mopped up Rs 273 crore from the market as per the revised estimate. Also Read – I-T issues 17-point checklist to trace unaccounted DeMO cash“For financing remunerative projects through market borrowings, it is intended to tap low-cost long-term funds from insurance and pension funds, multi-lateral and bilateral agencies which can be serviced through incremental revenues,” Prabhu said in his proposals while presenting the Rail Budget.Railways will create new vehicles to crowd in investment from long-term institutional investors and other partners, he said. “These may include setting up an infrastructure fund, a holding company and a JV with an existing NBFC of a PSU with IRFC, for raising long-term debt from domestic as well as overseas sources, including multilateral and bilateral financial institutions that have expressed keen interest in working closely with Railways in this endeavour,” he said. Resources from Public Private Partnerships (PPPs) have been pegged at Rs 17,136 crore. Also Read – Lanka launches ambitious tourism programme to woo Indian touristsEyes 14% freight revenue growth to Rs1.21 trillionThe proposed hike in freight rate will help Railways’ earnings from movement of goods grow by 14 per cent to Rs 1,21,423 crore in the next financial year, nearly half of which is expected to come from coal and cement.In 2014-15 (revised estimate), the revenue from movement of goods will rise to Rs 1,06,927 crore from Rs 93,095 crore in the previous year, according to the Rail Budget document. Out of the total revenue projected for the next fiscal, revenue from movement of coal would contribute the maximum at Rs 50,398.59 crore, up from Rs 44,486.27 crore in the current fiscal. The earnings from movement of cement is projected to increase to Rs 10,813.56 crore in 2015-16 from Rs 9,668.42 crore. Whereas, movement of foodgrains is expected to rake in Rs 10,158.58 crore in next fiscal from Rs 9,088.9 crore at present.Budget proposals, presented by Railway Minister Suresh Prabhu in the Parliament today, proposed a hike i freight rates for 12 commodities in the range of 0.8 per cent to 10 per cent.
Kolkata: Two Romanians were detained from Delhi in connection with the case of unauthorised withdrawal of money from various bank accounts after skimming debit cards to get the details.Officers of the Special Investigation Team (SIT) had left for Delhi a couple of days ago, after knowing that the cash was withdrawn from ATMs in Delhi from people who have bank accounts in Kolkata and its adjoining areas.The SIT was formed after the Kolkata Police received 76 complaints of unauthorised withdrawal of money from the bank accounts of city dwellers. Also Read – Rain batters Kolkata, cripples normal lifeOn Friday, the police arrested two Romanians from Vasant Vihar in Delhi. The police have seized 20 duplicate debit cards, which are also called clone cards. They have also recovered magnetic strips, which are usually used in debit cards. Police also found masks from them that they used to put on while entering an ATM counter to fit the skimming machine. Their passports have also been seized.Police sources said that the duo had come to Kolkata in March and they had been staying in the city for around two months, somewhere in Kasba area. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedThe police have come to know that they had been carrying out the crime with Delhi as its epicenter, as they used to withdraw money from ATM counters in Delhi after gathering debit card details of the account holders.The investigating officers have identified them after going through CCTV footages of the ATM counters where they had entered to fit skimming machines or to withdraw money from someone else’s bank account.The investigating officers have identified that a skimming machine was fitted in an ATM counter at Golpark on April 4 and the members of the racket had entered the ATM counter at least four times between April 4 and 21. The police suspect that besides the Romanian nationals, there is also involvement of some Nigerians. The police also suspect involvement of some youths from Delhi in the racket.The police are also trying to find out the person who had helped the Romanian nationals with basic support in Kolkata.In another incident, unidentified miscreants attempted to take away cash from two ATM counters at Liluah in Howrah.Police initiated a probe in this connection and found that the miscreants had damaged the CCTVs installed in the ATM counters. So, the police are trying to get video footages captured in CCTVs installed in the vicinity of the ATM counters.
The India Art Festival at Thyagraja Stadium in Delhi is a cameo of the small is beautiful concept and its founder Director Rajendra is an authority in the art of explorations as well as a well-heeled art aficionado.With 39 art galleries and 470 artists from 7 countries and 30 cities, it has works that are a mixed bag of sorts. Among best works are the three majestic abstracts by Achuthan Kudallur at Sara Arakkal Gallery from Bengaluru, G.R. Santosh and Sayed Haider Raza at Pioneer Art Gallery, Delhi. Also Read – Add new books to your shelfFinest of all is Chennai dweller Achuthan Kudallur’s moody abstraction – a leitmotif in the language of an intellectual aesthete. An author of Malayalam short stories, a thinker and a man of deep introspection Kudallur’s work is a lesson in the leitmotif of abstraction that is born out of a journey and not just texture and tonality. It is his dark sombre palette of earth and mineral tones that arrests for its technique as well as the spontaneity of grammar and gravitas. Also Read – Over 2 hours screen time daily will make your kids impulsiveSantosh the Shaivite and founding father of Neo-Tantric school of thought painted extensively in the Neo-Tantric form of painting which emanated after he visited the Amarnath cave in South Kashmir in 1964. Done in pleasant incandescent shades with distinct planes this work echoes the meditative origins of Tantra (‘tantra shastra’) which is part of the agama (divinely revealed) Shastra texts. Pioneer Gallery Delhi – Praveen Upadhye also had a classic Raza belonging to the ‘Germination’ series. Done in earth and mineral tones, it reflects Raza’s shift from his early expressionist style to the geometric. The circle becomes less of a graphical component and more of a central point representing concentrated energy. What arrests is the deep ripple of colour and contour speaking to us about the core of mortality and immortality. Among sculptures the best work was an aluminium horizontal panoramic work titled ‘In Dreams’ by sculptor Chittranjan at Art Zolo from Mumbai. A sequential arrangement of humans adds to the lyrical cadences of the work that echoes the brilliance of composition and the essence of elegance. In many ways it makes us think of cubist ideations of translating imagery it also speaks of the early modernist contours that were used by artists in the ‘Kalighat Pat’ series what endears is the interlocking of figures and the placement of the figures along a linear plane. Galleries that come from all parts of the country could be a little more professional about keeping high-resolution images for media. Having works of art is one thing but delivering efficiency and professionalism on time is vital in the art market.
Kolkata: Tension ran high at the Bongaon Sub Correctional Home after an undertrial prisoner was found dead inside the cell on Thursday.The deceased was identified as Tapan Das of Fulsara in Gaighata of North 24-Parganas. He was arrested at the Gaighata police station on Monday night for allegedly possessing firearms. According to sources, on Thursday, a few inmates and undertrial prisoners saw Das lying unconscious inside his cell. They immediately informed the correctional home authorities. Das was rushed to the Bongaon Sub Divisional Hospital, where doctors declared him brought dead. Later, the body was sent for an autopsy examination. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataSources informed that Das was arrested from Boikara area with a loaded pipe gun on Monday night. Das, was a auto driver by profession, he used to drive an auto in Gaighata. It was alleged that during interrogation he did not cooperate with the police and later he was sent to judicial custody. Though the police claimed that Das was arrested with firearms, his family refused to accept the allegation. They claimed that Das used to lead a normal life by driving his auto to earn for his family. His family members suspect he might had committed suicide as he might have felt humiliated because of his arrest. It was alleged that when Das’s family members went to the correctional home, authority refused to show them his body. An unnatural death case has been registered at the Bongaon police station. Sleuths are waiting for autopsy report to know the exact cause of death.
Ending the three-day celebration of the King of Fruits on an eventful note, the 31st Mango Festival brought together thousands of mango lovers at Dilli Haat Janakpuri this weekend. The three-day festival was a refreshing delight for Delhiites who gathered to see more than 500 varieties of mangoes collected from the Northern parts of India.Exploring the evergreen love for Mango harboured by every Indian household, Mango Festival proved to be a great way to make Delhi’s sweltering summers not only endurable but also enjoyable. Being the juiciest event of the year, the enthusiasm of visitors has yet again proven that the festival has become one of the major and the most awaited cultural events of Delhi. Also Read – Add new books to your shelfMango named after Indian Cricket team’s Captain became the main attraction of the exhibition. This year amongst other new varieties introduced by Mango Growers is ‘Virat’ (Kohli) Mango (weighing approximately 1kg), dedicated to the dynamic Indian Cricket Team Captain, carrying on the World Cup fervour and fever. The festival showcased various popular varieties from different states of India. About 20 Mango growers from across the country besides Government horticulturists participated in the event. The farmers from across the country including Uttrakhand and Uttar Pradesh had come together to display traditional, hybrid and unique varieties of Mangoes. The various types of mangoes on display included Langra, Chausa, Amrapali, Rataul, Hussainara, Ramkela, Kesar, Fazri, Mallika among other assorted varieties. Also Read – Over 2 hours screen time daily will make your kids impulsiveSome exclusive varieties from the Southern States were also displayed by the National Horticulture Board of India. Providing a plethora of delights for adults and children alike apart from the opportunity to get acquainted with myriad varieties of mangoes that have marked a journey all the way from the orchards of Northern India to Dilli Haat, Janakpuri, the 31st Mango Festival featured the sale of fresh mangoes, mango quiz and slogan writing contest, magic shows and cultural programs among other activities. Witnessing the event for the first time, Gauri Mudgal stated, “Having made countless summers worth cherishing, mango ushers a sense of nostalgia from childhood days spent eating it with family and friends. Finding so many varieties of mangoes under one roof is what made this a must visit the event.” Awards to the winning participants under various categories were given by Sudhir Sobti, Chief Manager (PR and Publicity and Events), Delhi Tourism at the prize distribution ceremony on the last day. The participants of the exhibition showcasing different varieties of mangoes at the festival were also awarded among winners of various competitions held during the festival. The three-day festival drew a crowd of more than 30,000 people from all parts of the city.
Stiletto knives were first developed in Italy in the 15th century, but came to prominence during the 1950s and 1960s. The blade of the stiletto was no more than 0.19 inches in diameter and it was used as a killing device, specialized not for cutting or slashing, but for stabbing the opponent.16th century stiletto daggerBefore the invention of the stiletto, the most preferred small weapons were the misericorde and the rondel dagger. The former is a type of a long, narrow knife that was used between the 12th and 15th century, mostly as the deliverer of a death strike to a seriously wounded knight, ending his pain and suffering.Hence its name — misericorde is derived from the Latin misericordia, meaning “act of mercy.” Its blade was so thin that it could slip through the gaps between armor plates. The stiletto inherited some of the features of the misericorde blade.V-42 stiletto. Photo by Chessy999 CC BY 3.0The rondel dagger was a stiff-bladed dagger which appeared in the 14th century in Europe. It was a needle-pointed weapon with a narrow blade designed for thrusting. The rondel dagger was a popular weapon of choice for many different people, from knights to merchants.The name “stiletto” also came from Latin, from the word stilus, an ancient Roman writing tool used for engraving letters into wax or clay tablets.Armored longsword combatants wearing roundel daggers as backup weapons (Plate 214, Codex Wallerstein, 15th century).Just like its predecessors, the stiletto was originally designed for the purpose of offense, and it was also used to give a “mercy strike” to the injured opponent. The stiletto soon became the most popular secondary weapon for knights.For assassins, the stiletto was the perfect tool for a silent kill. With time, the sharp dagger became the favored killing device, especially in Italy where the authorities banned its use, marking it as a dangerous weapon.Another type of thrusting knife: a French poniard in the collection of Thinktank museum, Birmingham, England. Photo by Birmingham Museums Trust CC BY SA 4.0The stiletto was convenient for both attack and defense because it could easily be hidden in clothing, most commonly inside a sleeve. It was also perfect to penetrate the heavy leathers and clothes of the medieval times.By the 19th century, the stiletto was by far the most popular weapon among political assassins and criminals, reaching notorious prominence not only in its home country but also in Sardinia, Corsica, and France. Most new thin, thrusting knives were created in the stiletto fashion – slim profile, needle-like point, and sharpened edges.A scan of the historical Fechtbuch (‘fencing book’) by German fencing master Hans Talhoffer (1467), where rondel type of daggers can be seen.The immense use and popularity of the stiletto led to the development of a specialized school, “The Sicilian School of stiletto fighting,” where students could learn the art and mastery of stiletto knives.It meant that a good professional was supposed to know how deep he should thrust the knife into the victim’s body, and how to inflict deadly wounds by twisting the sharp blade into more than one direction before removing it from the body.StilettoDuring the 19th century when Italians started migrating to the U.S., they brought their knives with them. The stiletto became widely used by many gang members, assassins, gamblers, and the mafia.Its use became so excessive that the city of New Orleans passed a law forbidding the sale or exhibition of any type of stiletto within the boundaries of the city.Usage of the stiletto was revived during both World Wars, mostly for protection purposes. Many soldiers made their own stabbing knives while some were commissioned by the authorities.For example, during WWI the French Lebel M1866 bayonet was quite often cut down and remade into a stiletto or a thrusting knife, which became known as trench knives.Read another story from us: The Medieval Reenactor Who Brandished His Prop Sword in a Heated DisputeDuring WWII, British hand-to-hand combat instructors produced Fairbairn-Sykes fighting knives – double-edged daggers that served for thrusting and slashing.
Kyrie Irving is officially headed to Boston after the Cavs and Celtics worked out the final details of his trade.Today, he posted a video thanking Cleveland for his time there. It isn’t exactly a tear jerker, more like a PR move, but give him credit for the gesture. He also thanks his teammates, without mentioning the most famous Cav by name. There’s also a weird reference to ‘self love’ for some reason.It looks and sounds like Irving is more than ready to move on from the Cavs and The King. Make a pot of coffee and try not to fall asleep while you watch this. It’s easy to doze off to.
Apple has stolen Samsung’s crown as the world’s largest smartphone manufacturer, according to a new report from Gartner.The IT market research firm says the Cupertino, Calif. tech titan sold 74.83 million iPhones worldwide in the fourth quarter, narrowly inching past Samsung’s 73.03 million phones sold in the same period. The news marks the first time Apple, fresh off reporting a record-shattering fourth-quarter profit of $18 billion (reportedly the highest ever disclosed by a public company) has snatched the top spot from Samsung in the heated global smartphone sales war since 2011. Apple’s enormously successful September 2014 launch of its large-screened iPhone 6 and iPhone 6 Plus models allowed the company to capture a 20.4 percent market share in the fourth quarter, Gartner reports. Samsung came in a close second, with a 19.9 percent market share, down 10 percent from the same time last year. Related: 5 Things I Learned About Successful Startups From Steve JobsMeanwhile, Beijing-based Lenovo clocked in as the world’s third largest smartphone seller with a 6.6 percent share of the market. Up-and-coming Chinese electronics contenders Huawei and Xiaomi rounded out the pack in fourth and fifth place respectively. But it’s promising 4-year-old upstart Xiaomi, the “Apple of the East,” that might have more to boast about than Apple or Samsung overall, having tripled its sales from a year ago. These vendors, along with others, helped smartphone sales surpass one billion units sold in 2014.While Apple’s smartphone sales are consistently robust in the U.S. and China, Gartner researchers pointed out that the company still has a ways to go in emerging markets.“Apple’s growth in emerging markets really is limited unless they come down-market with a new phone,” Gartner principal research analyst Tuong Nguyen told USA Today, “and they haven’t done that with any product to date.”Nguyen says Samsung’s speciality is “rolling out hard and fast with features that people have shown they want, but at the same time they’re not the kind of company that discovers a secret sauce.”Related: 4 Ways Samsung Says It Will Destroy Apple’s iPhone 6Samsung may not have dibs on a “secret sauce,” per se, but it is gearing up for a large-scale springtime launch of the Galaxy S6 and the S6 Edge, both of which the company unveiled at this week’s Mobile World Congress in Barcelona.Apple will likely also launch a new product soon: the Apple Watch. On March 9, the company is expected to unveil some key details about the long-anticipated wearable at an exclusive event in San Francisco. Rumors are also revving up about the tech colossus possibly putting its own car on the road by as early as 2020.Shares for Apple were slightly down Wednesday, hovering around $128 at the time of publication.Related: Xiaomi, the ‘Apple of the East,’ Surpasses Samsung as China’s Top Smartphone Seller Enroll Now for Free This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience. March 4, 2015 3 min read Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Now
April 18, 2017 Register Now » Growing a business sometimes requires thinking outside the box. Free Webinar | Sept. 9: The Entrepreneur’s Playbook for Going Global When Facebook founder Mark Zuckerberg took the stage today to open F8, the social giant’s annual developer conference, he wanted to address the elephant in the room. Another big tentpole event named F8 had already kind of stolen his thunder: the recent premiere of his buddy Vin Diesel’s latest movie, the eight installment of the Fast and the Furious franchise.Moving on to his main focus, Zuckerberg shared with the crowd Facebook’s mission going forward, riffing quite literally on the comprehensive treatise he published in February (he held up a sizable stack of paper that may or may not have been the printed open letter). The Facebook founder said the company’s next steps would be to bring the digital and physical together and to “work on building common ground.”To that end, Facebook’s next technological leap, now that it is the owner of four out of the five most downloaded apps in the world, is to step into the world of augmented reality. But Facebook isn’t the only company with designs on augmented reality.Related: Watch Mark Zuckerberg 3-D-Print a Mini Version of His DogThis week, Snap rolled out an AR feature that lets users add special effects to their photos, in addition to the already popular face mask effects, according to The Wall Street Journal. Other major companies dipping into AR include Microsoft, Google and Apple.Zuckerberg announced that today will see the beta launch of an open AR platform through a new camera function of the app that will allow developers to create their own filters and frames.He also shared what future AR innovations could look like. He offered an example of a still photo that could be transformed into a 3D scene, where the user could pan around, change lighting and add effects such as filling the room with water, bouncing balls or skittles.Related: Watch Mark Zuckerberg Ask Fellow Harvard Dropout Bill Gates for Advice on His Harvard Commencement SpeechZuckerberg spoke about transforming blank walls into street art and how AR could be used to leave notes for friends in specific places, such as marking a table at your favorite bar or leaving a note for your spouse on the refrigerator.“This is going to be an important technology that changes how we use our phones,” Zuckerberg said. “There is a long road map of technology to build for years. I am confident that we are going to push this augmented reality platform forward.” That long road map included creating glasses and eventually contacts to see the world through an augmented reality lens.Meanwhile, the Facebook CEO took a moment to offer his and the company’s condolences to the family of Robert Godwin, Sr., whose alleged killer posted a video of his murder on the social network and then confessed in a live video. Police say the alleged killer, Steve Stephens, took his own life on Tuesday. 3 min read