Carbon Nanotube Windmills Powered by Electron Wind

first_img Explore further The proposed (a) nanomotor and (b) nanodrill, where the red inner CNT rotates due to an electron wind. The nanomotor is attached to gold electrodes, which act as electron reservoirs, while the nanodrill has one end contacted to a mercury electrode. Credit: S.W.D. Bailey, et al. Tiny tubes move into the fast lane As Steven Bailey, Ilias Amanatidis, and Colin Lambert explain in a recent issue of Physical Review Letters, the new drive mechanism could be useful for future NEMS (nanoelectromechanical structures) technologies. “[Previously,] thoughts have been directed towards ‘pushing’ the motor to make it turn, whereas our suggestion harnesses an intrinsic property of the device: the change in momentum of electrons or phonons, for example,” Bailey told PhysOrg.com.The researchers describe the proposed nanomotor as a carbon nanotube (CNT) windmill, although the device looks more like a telescope than the conventional spinning blades of a windmill. It consists of a double-walled CNT, where the outer tube is clamped to two external electrodes, and the shorter inner tube is free to move and rotate. In a version called the CNT drill, the outer tube is clamped to just one electrode, while one end of the free inner tube is in contact with a mercury electrode, but is still free to rotate. The devices are called windmills because they’re powered by an applied dc voltage between the electrodes, which produces a “wind” of electrons.As it moves through the CNT, the flow of electrons acquires angular momentum, producing a tangential force that causes the inner nanotube to rotate. The researchers calculated that the electron wind can produce a force that significantly exceeds the inter-wall friction – sometimes by as much as three orders of magnitude. Depending on the applied voltage, the rotating inner tube can reach CNT breakdown velocities of up to 8,000 meters per second.The electron-wind-powered nanomotor could have a range of applications. For instance, by using a voltage pulse to make the inner tube rotate at a specific angle, it could be used as a switch or memory element in nanoscale magnetic memory devices; or, by putting the CNT in contact with a reservoir of atoms or molecules, the nanomotor could act as a nanofluidic pump.The physicists also suggest that the motor could be powered in different ways. In one possibility, the electrodes could be replaced with reservoirs of atoms or molecules. Then, an applied pressure difference could drive the atoms or molecules across the CNT, and their angular momentum could cause the inner tube to rotate. Similarly, a temperature difference between the ends of the CNT could create a flux of phonons that could also drive the motor. Other CNT-based nanomotors have been developed, including multi-walled CNTs with a similar structure to the CNT windmill. However, these previous designs have been powered by electrostatic forces that require metallic plates and gates, which aren’t needed in the new design. The researchers hope that the efficiency and simplicity of the CNT windmills will provide advantages over electrostatic and other nanomotors in the future.“The capability to engineer nanoscale motors is at the same stage as that of microscale motors in the 1990s,” Bailey said. “The manufacturing techniques to deal with the very low dimensions are always playing catch up with experimental groups, which are making very rapid progress, and we predict that to test out the CNT windmill will not require much change to established procedures within these groups. Indeed, there should be much less construction involved in making the nanomotor devices. The engineering simplicity of the CNT windmill will be the greatest advantage in the future.”More information: Bailey, S.W.D; Amanatidis, I.; and Lambert, C.J. “Carbon Nanotube Electron Windmills: A Novel Design for Nanomotors.” Physical Review Letters 100, 256802 (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. Theoretical physicists from Lancaster University in the UK have designed a nanomotor that operates by a novel mechanism: an electron wind. Citation: Carbon Nanotube Windmills Powered by ‘Electron Wind’ (2008, July 8) retrieved 18 August 2019 from https://phys.org/news/2008-07-carbon-nanotube-windmills-powered-electron.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

Stretchable Nanotube Films May Advance Medical Electronics Update

first_img(PhysOrg.com) — One of the issues hindering the development of medical electronic devices capable of being implanted in the human body is the lack of suitable materials. Most semiconducting materials are stiff and brittle, while human tissue is soft and pliable. Scientists at the University of California, Los Angeles (UCLA), appear to have taken a key step forward in implantable electronics research. A nanotube film placed over printed “UCLA” lettering prior to stretching. Image courtesy Qibing Pei. Will carbon nanotubes replace indium tin oxide? Explore further The group studied a very thin nanotube-based material and measured how it responds electrically and optically to extreme strains. As described in the April 22, 2009, online edition of Applied Physics Letters, they found that the material continues to conduct electricity when subjected to strains of more than 700 percent – that is, stretched to seven times its starting dimensions – ceasing to perform only when cracks developed.Implantable medical electronic devices can monitor a variety of bodily functions, including blood pressure, temperature, fluid flow; they can also sense chemical, electrical, and even magnetic properties within the body. But certain devices would require significant flexibility without compromising performance. Currently, the best materials for electronic medical devices develop cracks under less than 10 or 20 percent strain. “Using nanotubes is an obvious solution to the problems that have faced the development of these materials because they have high length-to-width ratios, which means they can bridge the cracked regions to maintain conductivity,” said co-author Qibing Pei, a UCLA materials science professor, to PhysOrg.com.Thin films of randomly distributed carbon nanotubes have been widely studied for a variety of electronics applications. They have displayed a variety of interesting and useful properties, such as very high flexibility, which is key for implantable medical electronics. There have been conflicting studies regarding the toxicity of carbon nanotubes, although recent studies concluded that they are not toxic to mice.The UCLA team first deposited the nanotubes onto a highly elastic substrate so that the films could be properly stretched. They performed the stretching slowly, straining the material both uniformly – with equal strain applied to each end of the film – and non-uniformly. They applied a voltage across the film as it was stretched, measuring the changing electrical response.The group also studied the optical properties of the films, which are transparent before stretching but are rather dark. Prior to stretching, they placed the films over printed letters, observing that the letters appear crisp. As strain is increased the letters became “fuzzy”; simultaneously, the films lightened in color.Using a scanning electron microscope, the group investigated the structural changes that occur during stretching and how they affect the films’ electrical and optical properties. When the nanotubes are spray-deposited, they appear to be uniformly distributed but actually form clusters. As strain is applied the clusters begin to break up, but because the nanotubes are long and thin they form connections between the clusters, which do not disappear but rather become less dense. Thus, the conduction pathways remain intact.The fuzziness that appears in the films is due to the spreading out of the nanotubes, which absorb and scatter light. The color change is due to the thinning of the films, which allows more light to pass through.The researchers say that the films could be made to conduct under even greater strains, with the development of ways to more uniformly deposit the nanotubes onto the substrate or applying a top coat to the films to fill in cracks.More information: Applied Physics Letters 94, 161108 (2009), http://link.aip.org/link/?APPLAB/94/161108/1Copyright 2009 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. Citation: Stretchable Nanotube Films May Advance Medical Electronics (Update) (2009, May 4) retrieved 18 August 2019 from https://phys.org/news/2009-05-stretchable-nanotube-advance-medical-electronics.htmllast_img read more

Sony unveils 3D and color epaper displays at this weeks SID 2011

first_img Sony’s 13.3 inch flexible color e-paper. Explore further Sony’s 3D displays come in a 10 inch and 23 inch size and can deliver a 3D image without the use of any special glasses. The method uses a backlight for 3D images positioned between an LCD panel and a backlight for normal 2D images. Switching between 2D and 3D is accomplished by lighting one of the two backlights.The backlight for the 3D images are LED’s placed on the light guide plate and its edges. On the light guide plate scatter patterns are produced at even intervals in the horizontal direction to direct light to the outside. More information: At the 49th SID International Symposium, Seminar & Exhibition Sony unveiled their new 3D glasses free display and flexible color e-paper. 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. Sony’s 3D 10 inch and 23 inch displays deliver 3D images without the use of any special glasses. The 3D effect is produced by the LED light sources being reflected on the scatter patterns to go to the back side of the panel as if lights are partially controlled by using “parallax barriers.” The result shows different images to the right and left eye. Sony’s 24-inch 3D LCD display has six viewpoints, and its pixel count is 960 x 360, and its brightness is 86.1cd/m2. 3D images are best viewed between distances of 80 to 160cm. The 2D mode, the pixel count of the display becomes 1,920 x 1,080 and has a brightness of 192cd/m2.Sony states that the new method can be applied to displays between 4 to 30 inches and hopes to commercialize it within a few years.center_img via Tech-On e-paper, Tech-On 3D display Sharp Introduces 3D LCD Color Monitor that provides a stereoscopic display Citation: Sony unveils 3D and color e-paper displays at this week’s SID 2011 (2011, May 20) retrieved 18 August 2019 from https://phys.org/news/2011-05-sony-unveils-3d-e-paper-week.html © 2010 PhysOrg.com (PhysOrg.com) — Sony unveiled a 13.3 inch flexible color e-paper device and two glass free 3D displays. The announcement was made at the 49th SID International Symposium, Seminar & Exhibition which is the world’s largest academic conference on display technologies. The conference is being held this week in Los Angeles, CA (USA). Sony’s 13.3 inch flexible color e-paper has a thickness of 150 microns and weighs 20g and uses a plastic substrate. The e-paper display has a 13% color gamut (NTSC), a reflectance of 10% and a 100,000:1 contrast ratio.The display’s 800 x 1200 pixel array consists of red, green, blue, and white sub-pixels. The sub-pixel measures 169 microns x 169 microns and the resolution and gradation of the screen are 75ppi and 16, respectively.The e-paper display is manufactured by applying adhesive to the glass substrate and attaching a plastic substrate. Amorphous TFTs are then formed on it with a180°C or lower temperature process. The plastic substrate is then finally removed from the glass substrate.last_img read more

Team suggests sublimating ice to propel CubeSats

first_img © 2015 Phys.org Explore further MIT lab developing ion microthrusters for cubesats Citation: Team suggests sublimating ice to propel CubeSats (2015, March 19) retrieved 18 August 2019 from https://phys.org/news/2015-03-team-sublimating-ice-propel-cubesats.html More information: Conceptual design of a low-pressure micro-resistojet based on a sublimating solid propellant, Acta Astronautica, Volume 108, March–April 2015, Pages 30–39. www.sciencedirect.com/science/ … ii/S0094576514005001AbstractIn the current and future trend towards smaller satellite missions, the development of a simple and reliable propulsion system with performance and characteristics in line with the typical requirements of nano-satellites and CubeSats plays a crucial role for enhancing the capabilities of this type of missions. This paper describes the design of a micro-resistojet using water stored in the frozen state (ice) as propellant, operating under sublimation conditions at low pressure. The low operating pressure allows for using the vapor pressure of ice as the only method of propellant feeding, thereby allowing for extremely low thrust and electric power usage. The results of an extensive set of numerical simulations for optimizing the thruster geometry in terms of power ratio and specific impulse produced are discussed. In addition, the design of the complete propulsion system is described. It makes use of a limited number of moving parts and two power sources, one in the thruster to increase the propellant temperature and one in the tank to maintain the propellant storage conditions. Results show that the proposed design represents an alternative option capable of meeting the typical requirements of small satellite missions by means of an intrinsically green propellant such as water, with the pressure inside the system never exceeding 600 Pa. Optimization results showed an optimum thrust to power ratio in range 0.2–1.2 mN/W for an expansion slot aspect ratio of 2.5.via Newscientist Tiny satellites that have earned the nickname CubeSats, have become very popular in recent years—their small size allows for many of them to be launched from one rocket, dramatically reducing costs. But they all have one thing in common—lack of a propulsion system. That means they are not able to maintain an orbital altitude, which dooms them to reentry after just a few months. It also prevents them from being sent out into deeper space, such as to the moon, or even to other parts of the solar system. Thus far, several projects have been announced with researchers looking to find a way to balance weight and size relative to the amount of thrust that can be generated. In this new effort the researchers think the solution is to use and ice and a solar collector.The team calls its system Ion Electrospray Propulsion System—it would work by taking advantage of ice sublimating in a space environment. The water molecules would be directed at a plate heated by solar power, which would cause them to move faster—directing them through a nozzle would generate just enough thrust, the team believes, to allow for controlling a CubeSat. The problem of course is how to keep the water frozen while a CubeSat is sitting on a launch-pad. The team does not have an answer for that but believe that if a solution can be found, their engine would be feasible—it would also require just five ounces of ice. That tiny bit of water might present another problem however, as it would account for ten percent of the allowable weight of a CubeSat, meaning there would be less for electronics or other gear. Also there is an issue of power utilization—heating the plate would take away from power that is currently used for other hardware.Whole fleets of CubeSats or CubeExplorers doing both academic and amateur research is an exciting proposition, perhaps if ice does turn out to be the best fuel for them, NASA or commercial rocket companies will start providing freezing compartments for whole crates of CubeStas as part of a package deal. 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. CubeSats launched from the International Space Station on 4 October 2012. Credit: NASA (Phys.org)—A trio of researchers affiliated with Delft University in The Netherlands, has come up with a new way to provide propulsion for CubSats—use frozen water as fuel. In their paper published in Acta Astronautica, the team outlines their design and suggest there is just one hurdle still standing in their way—a means of keeping the water frozen while a CubeSat is awaiting launch.last_img read more

Food is fair in Surajkund

first_imgThe most sought after mela is back again. Touted as one of the most entertaining crowd pullers, SurajKund International Crafts Mela brought together some delectable dishes from across the India in Haryana this year.The food court spread in the sprawling area of the mela has a fantastic range of cuisines with a regional uniqueness. To keep special care of the health and hygiene of the visitors, the authority has ensured that cleanliness is maintained and there is a provision of several garbage bins in the mela premises. Drinking water has also been made available at various places for the convenience of the visitors. Also Read – ‘Playing Jojo was emotionally exhausting’Focussing on the food stalls which display specialities and delicacies of their respective states. From Mumbai’s bhelpuri to Jaipur’s Dal Bhatti Churma and theme state Karnataka’s Sukka Chicken, Masala Dosa and filter coffee and Bihar’s Lithi Chokha, the mela has different state cuisines to be relished. Aloo tikki, Golgappe, Chaat, flavoured milk and Pav Bhaji are the most popular street foods at the Mela. Bhelpuri and Kulfi are other food items high on demand. Also Read – Leslie doing new comedy special with NetflixThe cuisine of the theme state, Karnataka offers a wide variety of food items, which include Bijapur Mirchi, Chakkali, Khadak Rotti, Shavige Bath, Uppittu, Chicken Sukka, Akki Rotti, Kyatsandra Ttiol, Gokak Karadantu and Dharwad Pedha.‘People are very happy to eat authentic South Indian delicacies at out stall. They take keen interest in knowing about our recipes,’ said K. Seenappa, Assistant General Manager, Karnataka State Tourism Development Corporation. The wines of Karnataka are also being displayed at the Mela purely for promotional purposes. Praveen Deshpande at the Karnataka wine counter, says, ‘The concept of manufacturing wines is relatively new in India, so we are aggressively marketing our wines in the Northern region, as people here are fond of wine and even the climate is well suited for wine consumption.’ He further added that an array of wines like Cabernet Sauvignon, Martot and Cabernet Franc are being produced in their state from French varieties of grapes spread over an area of 2,000 acres.Hot Gulab Jamuns, Gajar Ka Halwa teamed up with ice cold chuskis are some desserts served. The famous Banarasi paans adds to a mouth freshening experience. Cultural performances in the food court add to the wholesome entertainment.DETAILAt: Surajkund Mela Grounds, FaridabadOn till: 15 FebruaryTimings: All daylast_img read more

Maha CLP authorises Sonia Gandhi to nominate leader

first_imgMaharashtra Congress legislature party met here on Thursday and authorised party president Sonia Gandhi to nominate their leader even as former chief minister Prithviraj Chavan said he was not in the race for the post.A one-line resolution moved by state party chief Manikrao Thakre authorising Sonia Gandhi to select the new CLP leader was adopted unanimously.Earlier, leader of the Congress party in Lok Sabha Mallikarjun Kharge, central observer for the election, met the legislators individually to ascertain their views on the new CLP leader.last_img

Wenger rues lack of efficiency

first_imgA subdued and sombre Arsene Wenger was left to rue Arsenal’s lack of efficiency after his team lost 2-1 at home to Manchester United on Saturday in a game they dominated. ‘We have not dominated many games against United like we did today but we were not efficient enough and made defensive mistakes. We had plenty of opportunities to win the game and we are very disappointed. We were a bit naive,’ Wenger told a news conference. Wenger’s misery was compounded by injuries to midfielder Jack Wilshere and goalkeeper Wojciech Szczesny, who were both forced off in the second half.  ‘Jack has an ankle injury. I don’t know how bad it is yet. Wojciech is not bad,’ he said.Arsenal have slipped to eighth in the EPL table, 15 points behind Jose Mourinho’s Chelsea.last_img

Books restoring a legacy

first_imgThese are the times when photographs  are digital and they are saved in the latest gadgets and written works are coming in an e-book format. Film-maker and actor Aparna Sen released a book on  photography titled ‘IMAGES’ and politician Jaya Jaitly released a book on contemporary art titled ‘VOICES’ at the India Habitat Centre on Monday.Edited by art historian and curator Dr Alka Pande, the books produced under the aegis of India Habitat Centre were released to also celebrate the completion of 15 years of the Visual Arts Gallery, which has showcased and promoted some of the most seminal exhibitions over the last fifteen years. Also Read – ‘Playing Jojo was emotionally exhausting’The book ‘IMAGES’ features seven seminal essays on the evolution, growth and importance of the art of photography by names like Bandeep Singh, Robert Pledge, Nathalie Herschdorfer and Ashim Ghosh apart from featuring works of eleven photographers who have been past winners of the annual Habitat Photography award since 2003.The book ‘VOICES’ features twenty decisive essays on the Indian and world contemporary art by influential names like Nissar Allana, Jaya Jaitly, Alka Pande, Jonathan Faiers, Raj Liberhan, Diana Campbell Betancourt, Peter Nagy among others apart from featuring the top twenty exhibitions at Visual Arts Gallery over the last 15 years. Also Read – Leslie doing new comedy special with NetflixAfter the book release, eminent photographer Bandeep Singh read out excerpts from IMAGES which was followed by a book reading from his book NO COUNTRY by author Kalyan Ray. Young photographers who have been the past winners of India Habitat Centre Photography Fellowship were then awarded by Raj Liberhan, former director, IHC.Rakesh Kacker (Director, India Habitat Centre), Alka Pande (curator), Dr Linus Von Castelmur (Ambassador of Switzerland to India and Bhutan), Aparna Sen (filmmaker and actor), Jaya Jaitly (politician), Kalyan Ray (author), Bandeep Singh (photographer), Aditya Arya (photographer), Sandeep Biswas (artist), Avinash Pasricha (photographer) with wife Kiran, Madhu Jain (columnist), Humra Querishi (columnist), Harinder Singh with wife Kirandeep Kaur (art patron) among others were present on the occasion.last_img read more

Timely police intervention saves two minors from rogue appcab driver

first_imgKolkata: Two minor girls were saved on time from being taken away by an app-cab driver, thanks to the prompt action of two traffic sergeants from Shyambazar Traffic Guard.The incident occurred on Wednesday evening near Shyambazar Seven Point crossing. Sources informed that two women from Rajasthan aged about 50 years were seen crying and screaming near R G Kar Road and Raja Dinendra Street crossing on Wednesday evening around 6:10 pm. On seeing them, on-duty traffic sergeant of Shyambazar Traffic Guard Kajal Das went to the ladies. Also Read – Rain batters Kolkata, cripples normal lifeOn enquiring, he was told that they had booked an app-cab from Shyambazar Seven Point crossing for Mechhua in Burrabazar. However, after boarding the cab along with two minor girls of their family, the driver drove took the cab along R G Kar Road instead of going towards Burrabazar. When the ladies questioned the driver on why he took a wrong route, the driver allegedly stopped the cab near Raja Dinendra Street and asked them to get down as he would not go and cancelled the trip. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedHaving no other choice, when the ladies got down from the cab, the driver sped off with the two minors being inside car. On hearing the incident, Das immediately checked with their booking and noted the last four digits of the cab’s registration number. He quickly informed the Shyambazar Traffic Guard about the incident. Meanwhile, the phone number of the driver was fortunately their on call list. When Das called the driver, he denied being the same. Just after that when an police officer from the traffic guard called him, he informed that he had left the two minors near R G Kar canal side road. After Das was informed about the development, he went there and found the two minor girls crying on the road. Later, they were handed over to their guardians. Das requested the two ladies to lodge a complaint but they denied to do so.last_img read more

Mamata pays tribute to bravehearts of Mumbai terror attacks

first_imgKolkata: On the 10th anniversary of the 26/11 Mumbai terror attacks, West Bengal Chief Minister Mamata Banerjee on Monday paid tribute to those who laid down their lives to protect others. She also extended sympathies to those who lost their dear ones in the attacks carried out by 10 members of Lashkar-e-Taiba, a Pakistan-based terrorist organisation, in 2008. “On the 10th anniversary of the 26/11 attack, my sincere tribute to those who lost their lives on that day. Also Read – Rain batters Kolkata, cripples normal life Salutes to the police and military personnel, and civilians, who put their lives on the line to save people. Heartfelt sympathies with the families who lost their dear ones,” Banerjee said in a Twitter post on Monday. Terrorists carried out a string of coordinated shooting and bombing attacks that began on November 26 and lasted until November 29, 2008 in which more than 159 people, including 9 attackers were killed and over a hundred wounded in the business capital of the country.last_img read more

Ways to have ecofriendly holiday

first_imgFrom not asking for bedsheets and toiletries unnecessarily to making good use of door cards, there are many ways one can make a vacation eco-friendly while having fun, say experts. Here are few tips to make a vacation eco-friendly. Don’tsAsk for fresh bedsheets and towels if not really necessary: A lot of water gets wasted in order to wash the bedsheets and towels. Being conscious about what you request for will lead to a more eco-friendlier space and help reducing carbon-footprints that today stand as a cause of destruction of our planet. Also Read – Add new books to your shelfAsk for more toiletries: Almost all of us at some point of time have taken that shampoo we liked so much and kept it in our bags. A lot of hotels actually prefer to refill the bottles with shampoos and save the cost of buying another plastic bottle, you can do your bit to save that extra plastic bottle.Leave the power connection turned on: Leaving your room without turning off the lights or taking that key card out of the power socket. Take the responsibility and don’t waste that energy for no use. Also Read – Over 2 hours screen time daily will make your kids impulsiveDo’sMake use of door cards: We often ignore doors cards and directly call up the housekeeping to get cleaning done. Door cards can be really useful when you don’t want the housekeeping to clean your unsoiled bedsheets or towels by putting the ‘Do not disturb’ card at the knob. Make use of the water from the restaurant or hotel: The essence of not purchasing that bottled water and going for the tap water instead lies in saving your own carbon footprint. Plastic is also absolutely non-perishable and hence it really helps to use that water jug.last_img read more

KMC honours female sanitation workers

first_imgKolkata: INTTUC affiliated to the Kolkata Municipal Corporation Employees’ and Workers’ Union felicitated a few sanitationworkers and clerks of the civic body on International Women’s Day. State Power minister Sobhandeb Chattopadhyay presided over the felicitation event. This is for the first time, the services of civic body women employees and sanitation workers have been recognised. Chattopadhyay said the motto of the Trinamool Congress government was to empower women. Also Read – Bose & Gandhi: More similar than apart, says Sugata BoseThrough Kanyashree, lakhs of girls could pursue their higher education, he said. He said: “Sanitation workers and those engaged in 100-day work scheme toil to keep the city clean. “But their work is seldom acknowledged. Women clerks of the civic body also work very hard round the year. By felicitating them we acknowledge their service inspire thousands of people.” Hundreds of civic body employees attended the felicitation event and support the mission of women empowerment.last_img read more

7 Bangladeshi nationals held with dollars worth Rs 514 cr

first_imgKolkata: Seven Bangladeshi nationals were recently arrested at the Netaji Subhas Chandra Bose International (NSCBI) Airport with a large amount of foreign currency. Officers of Central Industrial Security Force (CISF) grew suspicious when the airport officials were checking bags.The money was spotted during the scanning of luggage. According to sources, on Wednesday morning, when the luggage of the flyers was being checked for a Dhaka-bound flight, the on duty Central Industrial Security Force officer had some suspicion about a few bags after he saw their images on the scanner screen. To investigate the matter, the officer decided to check the baggage physically. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataAfter opening the luggage nothing suspicious was found. Later, during a thorough check a small false space were found at the bottom of the every luggage bag. Immediately, the bottom of the luggage bags were cut open and the Central Industrial Security Force officer found a huge amount of foreign currency inside them. Seven passengers were immediately detained and taken to the Central Industrial Security Force custody. They have been asked to submit valid documents in support of carrying such a huge amount of foreign currency. As they were not able to produce any document, the money was confiscated and all seven of them have been handed over to the customs authority. Later, customs authority arrested the accused persons. A source informed that the total amount of the seized money is valued at $7.43 lakh, which is worth Rs 5.14 crore. On Saturday morning, a Bangladeshi national identified as Alam Sah was arrested with $ 70,000 which is worth Rs 47.42 lakh. The dollars were hidden inside a false compartment at the bottom of his bag.last_img read more

Five LS seats in West Bengal to go polls in the third

first_imgKolkata: Five West Bengal Lok Sabha constituencies – Balurghat, Maldaha North, Maldaha South, Jangipur and Murshidabad will go to the polls in the third phase of elections on Tuesday. The ruling Trinamool Congress in West Bengal, BJP and Congress are the main contenders in the five seats in which the fate of 61 candidates will be decided by a 80,23,852-strong electorate. Four seats will see four-cornered contests between the three parties and the Left. It will be a three-cornered contest in Maldaha South as no Left party is in the fray in the seat. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: Mamata The constituencies saw high-octane campaigning by Prime Minister Narendra Modi, Chief Minister and TMC supremo Mamata Banerjee, BJP president Amit Shah and Congress president Rahul Gandhi who raised a series of issues ranging from corruption to communalism, NRC to chitfund scams and development to security, besides infiltration. The TMC has fielded sitting MP Arpita Ghosh against BJP’s Sukanta Majumdar in Balurghat. The Congress has named Sadik Sarkar and RSP, a Left Front constituent, has fielded Ranen Burman. Also Read – Lightning kills 8, injures 16 in state In Maldaha North, the TMC has named former Congress MP Mausam Benazir Noor against BJP’s Khagen Murmu, while Congress has nominated Isha Khan Chowdhury and CPI(M) Biswanath Ghosh. Maldaha South will see the ruling party’s Moazzem Hossain locking horns with BJP’s Sreerupa Mitra Choudhury. Congress’s Abu Hasem Khan Chowdhury is also in the fray. The CPI(M) has not fielded any candidate. In Jangipur, TMC’s Khalilur Rehman will contest against former president and Congress leader Pranab Mukherjee’s son Abhijit. The BJP has fielded Mafuja Khatun and the CPI(M) Zulfikar Ali. Abu Taher Khan is the TMC candidate from Murshidabad against BJP’s Humayun Kabir. The Congress has nominated Abu Hena and the CPI(M) named Badruddaza Khan for the seat. The Election Commission will deploy 324 companies of central forces to cover over 92 per cent of the 8528 polling booths in the five Lok Sabha seats to ensure free and fair polling, officials said. Besides general election observers and expenditure observers, the poll panel has for the first time deployed a special police observer and a special observer. In another first, VVPAT will be used in all polling booths along with the EVMs, EC sources said.last_img read more

Playing video games can make you more creative

first_imgPlaying video games may not be as bad as we always thought and certain games that foster creative freedom can help in increasing creativity, researchers say. In the experimental study published in the Creativity Research Journal, the researchers analysed 352 participants. They compared the effects of playing Minecraft, with or without instruction, to watching a TV show or playing a race car video game. After 40 minutes of play or watching TV, the participants completed several creativity tasks. To measure creative production, they were asked to draw a creature from a world much different than Earth. More human-like creatures scored low for creativity and those less human-like scored high. It was found that those given the freedom to play Minecraft – a game that allows players to explore unique worlds and create anything they can imagine – without instructions were the most creative while those instructed to be creative while playing Minecraft were the least creative. Also Read – Add new books to your shelf”It’s not just that Minecraft can help induce creativity. There seems to be something about choosing to do it that also matters,” said Douglas Gentile, Professor at the Iowa State University. There is no clear explanation for this finding but there could be some possible reasons why the instructed Minecraft group scored lower, said study lead author Jorge Blanco-Herrera from the varsity. “The instructions may have changed subjects’ motivation for play. Being told to be creative may have actually limited their options while playing, resulting in a less creative experience. It’s also possible they used all their ‘creative juices’ while playing and had nothing left when it came time to complete the test,” he said. Most games encourage players to practice some creativity. For example, players may create a character and story for role-playing games or be rewarded for creative strategies in competitive games.”last_img read more

NIA nabs Khagragarh blast accused from MP

first_imgKolkata: The Bengal unit of National Investigation Agency (NIA) has nabbed a Jaamat-ul-Mujahideen Bangladesh (JMB) terrorist from Madhya Pradesh. The terrorist, identified as Jahirul Shaikh, was wanted in the Khagragarh blast case. He has been brought to Kolkata in transit remand on Tuesday.According to sources, since the Khagragarh blast Shaikh had been absconding. He is a resident of Thanarpara area in Nadia and had obtained training from Simuliah madrasa in Burdwan, where several other terrorists used to take shelter. Following his training, Shaikh was given the responsibility of recruiting young men and women and training them. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataIn 2014 October, a blast took place in a house at Khagragarh in Burdwan. During investigation it came to the light that several terrorists used to prepare Improvised Explosive Devices (IED) and other high intensity explosives inside the house. During investigation, several JMB terrorists including some top level leaders of the banned organisation were arrested. NIA had also seized a Tata Nano which Shaikh used to drive. Following seizure of the car, NIA officials conducted a raid at Shaikh’s house in Nadia and seized liquid explosive material in huge quantities. Since the last five years, NIA has conducted raids in multiple locations across the country in search of him. However, Shaikh had managed to elude them so far. A few days ago NIA got information about Shaikh hiding in Madhya Pradesh. Based on the information, a raid was conducted and he was arrested. He is being interrogated about his plan and whereabouts of his associates. NIA is also trying to know whether he has any plan to execute during Independence Day.last_img read more

The International Space Stations video of the Northern Lights will take your

first_imgThe Northern Lights is an almost mythical light show that occurs when charged particles of the sun collide with earth’s upper atmosphere. It’s a phenomena that few people get to experience in person, but the International Space Station captured a time lapse of the lights in time-lapse video from space that will take your breath away.Take a minute away from the stress of everything that’s currently going on and enjoy this for a half a minute.last_img

Dallas made the right decision by ditching Dez

first_imgDallas made the right decision by ditching DezThe Cowboys cut Dez Bryant today, and Colin thinks it was the right decision. Once an elite wide receiver, Bryant’s dramatically decreased production didn’t justify his $16.5 million yearly salary, or the distractions he caused. Without Bryant’s looming presence and locker room distraction will also help Dak Prescott’s continued development. Lakers process is working, it just doesn’t have a catchy nameThe Lakers missed the playoffs, but Colin thinks they made some important strides in their rebuild, this season. Not only did Lonzo Ball show he can play point in the NBA, Brandon Ingram also took a huge leap in his second year. They also found rookie steal Kyle Kuzma, and Julius Randle went from malcontent to key contributor. In the difficult Western Conference, the Lakers put together a respectable second half and Head Coach Luke Walton proved he belongs as an NBA head coach.They still need to sign key veteran free agents before they can seriously be considered a contender, but this season should help convince potential targets that they have some key pieces. The Lakers process is working, even if it doesn’t have a catchy name.Also:– KD’s move to Golden State has revealed his weaknessesGuests:Rick Barry = NBA Hall of Famer and former Warriors great joins the show to talk how steph’s Curry impacts Golden State’s title chances.Matt Mosely – DallasNews.com columnist joins the show to discuss Dez Bryant getting cut by the Cowboys.Earl Watson – Former Suns Head Coach is in-studio explaining why he thinks the Spurs can beat the Warriors in their first-round matchup.Joe Vardon – Cleveland.com Cavs Beat Writer is in-studio talking Cleveland playoff prospects and Kevin Love becoming the second option.last_img read more

Want a New Website You May Have to Put in a Lot

first_img Attend this free webinar and learn how you can maximize efficiency while getting the most critical things done right. June 17, 2015 Three of Venture for America’s fellows — Mike Wilner, Taylor Sundali, and Matt Fulton — noticed that over 50 percent of small businesses don’t have a website, and of those that do, over 90 percent aren’t optimized for mobile visitors. So, they started a company, Compass, to address this. Related: 3 Ways to Improve Conversions on Your WebsiteI believe that Compass is going to become a multi-million dollar business in the coming years. I know what you’re thinking: “A ‘website company’ is a good opportunity? Isn’t it 2015?” Or maybe you’re asking, “How the heck do so many businesses not have websites? Isn’t that the first thing you’d do nowadays?” Especially now that there are so many do-it-yourself services like Squarespace, Wix and Weebly. Understanding the answers to these questions requires some context. I’m going to start close to home, with my 67-year-old mom. She’s an artist, and she recently wanted to build a website to display her paintings and sell prints. So she called me, her (theoretically) tech-savvy, 40-year-old entrepreneur son and asked for my help. What did I do? I didn’t build her a website. I didn’t want to sit there and figure out Squarespace and produce something she wouldn’t like anyway. I didn’t recommend her to an agency. I knew she didn’t want to spend much money, and website creators generally cost at least $5,000. Instead, I thought to myself, “Hmm, what human beings do I know that build websites that won’t rip my mom off?” The truth is that most independent businesspeople are in their 30s or older, and most of those people don’t have the time to figure out how to build a website on their own. The proportion of people who start trying to build a website on Wix and actually finish is only 2 percent. That means that 98 percent of people give it a whirl and quit. That’s a lot of unbuilt websites and a lot of businesses that still need them. I could have told my mom to use a freelance platform like Elance, Upwork or 99designs. But these platforms require you to submit specs, vet submissions, decide on pricing, provide content, etc. It’s a whole project-management exercise. I would have been punting my mom into a maw of complexity. How does Compass surmount these difficulties? It builds customized websites for $800 to $1,800 and has a network of highly curated freelancers (many of whom are Venture for America Fellows). It also has a well-designed process to get the info needed from the business owner, in order to deliver a quality product quickly and reliably. Related: 10 Options for Hosting Your Startup WebsiteWhat’s more, its freelancers are paid $40-plus an hour and don’t have to do all of the meta-work that makes this kind of thing painful for creatives (sell, negotiate, educate, gather content and info, etc.). Freelancers generally want as friction-free an engagement as possible. And Compass smoothes out the friction. The market is enormous: $12 billion a year is spent by small businesses on web services each year. And there’s more: It’s not just websites, but search engine optimization, email marketing, social media, analytics and everything else a small business would want to do online. So, many companies today are saying, “Here are the tools; we’ve made it easier than ever (for you to do)!” And if you’re a small business, it’s easy to understand that approach. Those companies can go big and keep costs down by minimizing the services component. Yet, just providing better tools is not going to solve this particular problem. The vast majority of small business owners want nothing to do with figuring out a website. They are neck-deep in their business trying to keep it going. If that business is catering, they’re in a kitchen, or shopping for supplies or sending thank-you notes, etc. If the business is in landscape, the owners are hiring people, mowing lawns, maintaining equipment, etc.In short, business owners are time-starved and trying to move things off their plate. So, the key isn’t better tools; it’s accessibility, ease, convenience, process and, above all, service. I myself ran an education company that became the leader in its category. Theoretically, our customers could have gone out and taxonomized the primary materials or found a freelance tutor; our instructors could have hung out their own shingles and tried to attract students.Instead, we made things accessible and easy by curating the best instructors, packaging the materials in a digestible form and format and delivering a high-quality service. The company subsequently grew to tens of millions in revenue, and continues to grow to this day. (Yes, even though educational content online is now theoretically “free” online and ubiquitous. It turns out that the completion rate for those open online courses is only about 4 percent.)At our company, we never raised any money; investors probably wouldn’t have liked the business model anyway. Too many people involved. So, there’s a lesson here for entrepreneurs looking for opportunities: Technology is transforming industries and enabling unprecedented levels of both reach and access. It’s getting better all of the time. But each new toolset or means of communication requires another investment on the part of businesses and individuals that may not be in a position to make that investment.And clearly when people approach a transaction or task they don’t necessarily want to equip themselves or become experts. There’s a reason that headhunters still thrive, despite LinkedIn; and real estate brokers still make money, despite Zillow. If you go deep into a problem, most all of the time you’ll find more problems that need to be solved from the ground up. Yet technology can create needs, even as it addresses them. Sometimes solving the base problems requires a lot of work — and that is where opportunity lies. Related: 7 Things You Need to Know About SEO to Remain Relevant in 2015 Opinions expressed by Entrepreneur contributors are their own. Free Webinar | Sept 5: Tips and Tools for Making Progress Toward Important Goals 6 min read Register Now »last_img read more