Detector can count atom by atom

first_imgThis cavity-on-a-chip was used in the scientists’ single-atom detection experiments. The atom detector counts atoms by sensing photons that scatter off the atoms – an ability that will assist in a variety of new developments in atom optics devices. Photo credit: Igor Teper. MIT scientists Igor Teper, Yu-Ju Lin and Vladan Vuletic have developed a method for counting individual atoms that will likely assist in future developments of many different types of atom optics devices. Using an optical cavity – an arrangement of mirrors that forms a standing wave (a major component of lasers) – the detector counts atoms by detecting the photons that scatter off the atoms, either into the cavity or out of it. The group’s results are published in a recent issue of Physical Review Letters.In atom optics devices, atoms must be cooled to temperatures close to absolute zero (-459 degrees Fahrenheit) in order for them to exhibit their wave-like nature. Such ultra-cold atoms can then be manipulated much like light waves, but fully exploiting this ability requires high atom-number resolution.“Many interesting and novel atom optics applications, such as quantum information processing, that could potentially be implemented on atom chips require precise knowledge of atom numbers and atom statistics, and, in some cases, the ability to prepare and detect single atoms,” Teper told “The challenge is that the signal from a single atom is generally very small, so you need to either collect the signal for a long time or find some way to enhance the signal and reduce background noise. In our case, the cavity does both, since it enhances atom scattering and also filters out most of the background light.”In their set-up, Teper, Lin and Vuletic first trapped and cooled rubidium atoms in a magnetic trap. The team used two different measurements – fluorescence and absorption – to detect the photons scattering off the atoms. The fluorescence method works by illuminating the atoms with laser light of a specific frequency and measuring the amount of laser light scattered into the cavity. Although with this method atom number resolution decreases with larger quantities of atoms because larger light signals have larger fundamental uncertainty, the method allowed detection of a single atom with 75% efficiency in 250 microseconds.“There are various limits on how long ultracold atom experiments can take, both in terms of how long the atoms survive in the trap before they are lost and also in terms of how long various properties of the atoms are preserved,” said Teper. “One would want atom number measurements to take much less time than these limits so that one can perform the detection, or possibly many detections, without significantly cutting into the time available for the rest of the experiment. Also, one may need to measure an atom in motion, so that it spends only a short time in the detection region. Different applications can have very different constraints on the detection time.” Explore further Citation: Detector can count atom by atom (2006, August 10) retrieved 18 August 2019 from More than 80 years have passed since Louis de Broglie discovered that matter can act like a wave as well as a particle. With advances in technology, scientists have recently begun exploiting this strange property of everyday matter for applications such as atom lasers and nanofabrication. To further their understanding of these applications with matter waves, however, scientists need a way to detect and count the exact number of atoms used.center_img Using the absorption method, the scientists measured the rate of photons taken in by an atom, in effect looking at the atoms’ shadow, and achieved a resolution of about one atom. Because more atoms absorb more photons, which reduces the observed light signal, the absorption method is not limited the way fluorescence is when measuring a large number of atoms. Using a combination of fluorescence and absorption methods provides versatility for counting atoms in different applications.“Current atom optics capabilities include atom lasers, mirrors and beam-splitters for matter waves, atom interferometry (using both thermal atoms and Bose-Einstein condensates (BECs)), and BEC Josephson junctions,” said Teper. “Some of these have been achieved in magnetic traps on chips, some in free-space magnetic traps, some in optical traps, and some with untrapped atoms.”Many atom optics applications seem very futuristic, but the laws of quantum mechanics also seem to predict that such applications are possible with the proper technology. For example, scientists speculate on atom holography, which would be like laser holography but would replicate objects with actual matter instead of light. Also, more advanced atom lasers might act like the opposite of an optical laser, using light to direct beams of matter waves. “There has been rapid progress in the past few years in all these experimental regimes; many technical problems have been solved, and there’s a lot of excitement in the field,” said Teper. “BEC interferometry with magnetically trapped atoms on chips is one area where there’s been a series of breakthroughs recently, and there’s lots of interesting experiments ahead. Quantum information processing is one of the big goals of atom optics on chips, and while there’s been a lot of progress on some of the necessary components, there’s still a tremendous amount of work to do and many challenges to overcome.”Citation: Teper, Igor, Lin, Yu-Ju and Vuletic, Vladan. ”Resonator-Aided Single-Atom Detection on a Microfabricated Chip.” Physical Review Letters 97 023002 (2006). By Lisa Zyga, Copyright 2006 NIST’s compact atomic gyroscope displays new twists 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

Nanodisk Codes

first_imgPhysical binary codes formed by nanodisks carved out of nanorods. Image courtesy Chad Mirkin. Researchers at Northwestern University have devised a way to use billionth-of-a-meter-sized disks to create codes that could be used to encrypt information, serve as biological labels, and even tag and track goods and personnel. Citation: Nanodisk Codes (2007, December 27) retrieved 18 August 2019 from Explore further Applying the Goldilocks principle to DNA structure The nanodisks can form a physical pattern, similar in concept to a barcode, as well as a spectroscopic code, meaning it can exhibit a specific, unique response to electromagnetic radiation, or light, depending on the type of molecule (or molecules) attached to the disks—in other words, how the disks are “functionalized.”Nanostructures can be ideal for encoding. Their small size allows them to be hidden easily in a variety of materials and objects, and scientists’ ability to easily tailor their physical and chemical properties makes it possible to design nanostructures for specific coding functions.In a paper describing this work, published in a recent edition of Nano Letters, the researchers, led by Northeastern chemist Chad Mirkin, describe how the nanodisks can form physical binary codes. The group started with nanorods made of gold and nickel and, using a method they developed, carved disks out of each rod. The disks are created in twos, with up to five pairs created per rod.Each of the five disk-pair locations along the rod can correspond to a “0” or a “1,” depending on whether that location is occupied by a disk pair. For example, if only one disk pair is present, and it is situated at the third location, that code is read as 00100. If two disk pairs are present, at the fourth and fifth locations, the code is 00011.“This is a rapid, low cost way of making many unique nanostructures that can identified and read based upon high sensitivity spectroscopic techniques,” Mirkin said to “It’s a beautiful example of how the ability to shape and control the size and surface composition of a nanostructure can translate into significant technological advantages.”The group has made nanodisk arrays as long as 12 micrometers (millionths of a meter), which can support as many as 10 disk pairs, yielding 287 physical nanodisk codes.The researchers increased the codes’ usefulness by functionalizing them with a class of dye molecules called chromophores. This makes the codes spectroscopically active, allowing each to emit a unique light spectrum when illuminated by an exterior light source, typically a laser beam.Due to the physical and spectroscopic codes they can exhibit, the nanodisks are particularly suited for biological tagging, a method of tracking and detecting individual biological materials, such as DNA. The researchers proved this by attaching pieces of single-stranded DNA to the surfaces of the nanodisks in a 11011 code. Each of these strands was complementary to half of a “target” DNA strand—the strand being tagged. The other half of the target strand was complementary to a “reporter” strand, rendered spectroscopically active with dye. The overall structure formed a three-strand “sandwich,” with the target strand in the middle.The group also created a similar sandwich structure using a different reporter strand and a 10101 code, and then mixed the two samples. They were able to successfully detect and distinguish between the unique spectrums emitted by both reporter molecules.Citation: Nano Lett., 7 (12), 3849-3853, 2007Copyright 2007 All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of 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

Gas dynamics in a nearby protostellar binary system studied with ALMA

first_img Protostars as single objects or existing in binary systems are important for astronomers to study the mechanisms of star formation. In some protostellar binaries a peculiar “bridge” of material is clearly visible, which connects the recently formed components. This remnant material could be the key to better understand how stars form and evolve.IRAS 16293−2422 (or IRAS 16293 for short) exhibits such a bridge connection between the two companions. It is a young, Class 0 protostellar system located some 400 light years away in the Ophiuchus cloud complex, consisting of two protostars, designated IRAS 16293A and IRAS 16293B, separated by about 636 AU from each other.Besides an arc of dust and gas connecting the sources, previous observations of IRAS 16293 have also found outflows from the object “A.” These features make it a very complex system, where the observed gas line emission can only be explained by a combination of multiple physical components.In order to gather more information about on this subject, which could provide essential hints into the nature and evolutionary status of IRAS 16293, a group of astronomers led by Matthijs H.D. van der Wiel of the Netherlands Institute for Radio Astronomy (ASTRON), has employed ALMA to observe this binary.The observations were conducted between June 2014 and May 2015, as part of the ALMA-PILS spectral imaging survey. From the data provided by the survey, the researchers chose molecular gas line transitions of CO, H2CO, HCN, CS, SiO, and C2H and used them to kinematics, density, and temperature in IRAS 16293.Analyzing the results, the astronomers found that the kinematically quiescent bridge of dust and gas spanning between IRAS 16293A and IRAS 16293B has a density within the range between 40,000 and 30 million cm-3, and is stable against radial collapse. The data suggest that this bridge is a remnant substructure of a filamentary circumbinary envelope that has undergone turbulent fragmentation to form both protostellar sources.Moreover, the observations uncovered the presence of a separate, straight filament seemingly connected to IRAS 16293B and seen only in C2H, with a flat kinematic signature. This structure stretches straight across source “B” at position angle of about 15 degrees. The researchers noted that the properties of this filament indicate that its origin in outflow activity of IRAS 16293B can be ruled out. Taking into account the results from ALMA observations and also from previous studies, the authors of the paper found that IRAS 16293B may be in an earlier evolutionary stage than the source “A.” In general, they concluded that IRAS 16293 may represent a particular stage in the evolution of binaries, a phase which many other protostars may go through at one point in their evolution. An international team of astronomers used the Atacama Large Millimeter/submillimeter Array (ALMA) to investigate gas dynamics in a nearby young protostellar binary known as IRAS 16293−2422. Results of the observations, presented in a paper published March 29, provide more insights into the evolutionary status of this system. Illustration of physical components surrounding and bridging protostars A and B in the IRAS 16293 system, and outflows emanating from IRAS 16293A. Credit: Van der Wiel et al., 2019. Citation: Gas dynamics in a nearby protostellar binary system studied with ALMA (2019, April 9) retrieved 18 August 2019 from ALMA finds ingredient of life around infant Sun-like stars More information: M. H. D. van der Wiel et al. The ALMA-PILS survey: Gas dynamics in IRAS 16293−2422 and the connection between its two. Astrophysics of Galaxies (astro-ph.GA). Explore further © 2019 Science X Network This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

Researchers suggest collapsar accretion disks might be source of heaviest elements

first_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. More information: Daniel M. Siegel et al. Collapsars as a major source of r-process elements, Nature (2019). DOI: 10.1038/s41586-019-1136-0 Citation: Researchers suggest collapsar accretion disks might be source of heaviest elements (2019, May 9) retrieved 18 August 2019 from Explore further Journal information: Nature © 2019 Science X Networkcenter_img Computer simulation sheds new light on colliding stars Space scientists believe that the lightest elements, helium, hydrogen and lithium, originated just after the Big Bang. They also believe that heavier elements such as iron were created in the centers of stars. But heavier elements such as uranium and gold have remained a mystery—until now, there has been no plausible explanation for their origin. In this new effort, the researchers suggest that such elements were created in accretion disks formed when neutron stars collapse into black holes.Prior research has suggested that the heaviest elements were created by what is known as the “r-process,” in which a chain reaction results in atomic nuclei absorbing neutrons. Astrophysicists had theorized that two neutron stars colliding would likely give way to the conditions necessary for the r-process to occur, creating some of the heaviest elements. Two years ago, the team credited with observing the first gravity waves reported the effects of two neutron stars colliding. Subsequent study of the event showed that it was likely that the r-process had occurred, giving strong credence to the theory. But there was still one problem. The collision of neutron stars is a rare event—too rare to account for the amount of the heaviest elements that exist today. That led the researchers to consider other neutron star activities—such as their gravitational collapse.Prior research had shown that when neutron stars die, they collapse into black holes. But not all of their material falls into the black hole; some is left behind and forms into an accretion disk. Computer simulations the researchers created showed that conditions in the accretion disks were ripe for the r-process, giving way to creation of the heaviest elements. The team suggests that approximately 80 percent of these elements originate in accretion disks, and the remainder are created when neutron stars collide. Credit: CC0 Public Domain A trio of researchers at Columbia University is suggesting that collapsar accretion disks might be the major source of the heaviest elements. In their paper published in the journal Nature, Daniel Siegel, Jennifer Barnes and Brian Metzger describe their study of the accretion disks that form as neutron stars collapse into black holes, and what they found.last_img read more

New Statue At US Open Honors African America

first_img by NPR News Richard Gonzales 8.26.19 11:10pm In a long overdue tribute to the first African American to break international tennis’ color barrier, a new statue of Althea Gibson was unveiled at the opening day of the U.S. Open.The statue is comprised of five granite blocks and created by American sculptor Eric Goulder. It sits outside Arthur Ashe Stadium at the Billy Jean King National Tennis Center in Queens, New York.In 1947, Gibson broke into the elite ranks of the tennis world winning the first 10 consecutive American Tennis Association women’s titles. (The ATA was the tennis equivalent of baseball’s Negro Leagues.) At the age of 23, Gibson became the first African American player to compete in the U.S. Nationals, the precursor to the U.S. Open, in 1950.Between 1956 to 1958, Gibson made her mark. She won 11 majors, and was the first black player to win the French Open, Wimbledon and the U.S. Nationals. When she retired in 1958, she was the top-ranked woman in tennis having won more than 50 singles and doubles championships.Perhaps because she was a star during a period when tennis champs made no real money and because she was a woman, more than a few people believe Gibson did not get all of the respect she earned as a trailblazer.”Recognizing for me as an African American woman and recognizing what Althea stood for and understanding that she truly broke the color barrier for tennis – a lot of people think it’s Arthur [Ashe], but it was Althea 11 years before him,” said Katrina Adams, former president and CEO of the U.S. Tennis Association.Adams, along with Billy Jean King, helped lead the campaign for the Gibson statue.”I said, ‘She’s our Jackie Robinson of tennis and she needs to be appreciated for it, and she’s not,’ ” King told the Undefeated in 2018. “I wanted something there that was permanent. I didn’t want just a one-day highlight.””It’s about bloody time,” said Angela Buxton of Britain, who won the 1956 French and Wimbledon doubles championships with Gibson, referring to the statue as quoted by the Associated Press.Buxton, who is Jewish, shared more than doubles titles with Gibson. She knew first hand what Gibson endured as a black competitor in a sport dominated then by white players.”Althea, with her two ticker-tape parades, still wasn’t allowed into a hotel where the whites sleep or a water fountain to drink where whites drink, but she helped to break that down,” Buxton said.After leaving the tennis world, Gibson had a brief career as a golfer, becoming the first African American woman to join the Ladies Professional Golf Association.Etched on one of the granite blocks of the Gibson statue is a quote from her: “I hope that I have accomplished just one thing: that I have been a credit to tennis and my country.”Gibson died in 2003 at the age of 76.Copyright 2019 NPR. To see more, visit NPR. Frank Franklin II New Statue At U.S. Open Honors African American Tennis… last_img read more

Allwin day for Indian paddlers at Asian Games

first_imgIndian paddlers enjoyed an all-win day on Tuesday at the Asian Games as country’s top doubles duo of Achanta Sharath Kamal and Anthony Amalraj reached the men’s doubles third round here on Tuesday. Amalraj and Kamal unexpectedly lost the first game before taming the Nepal’s Purshottam Bajracharya and Amar Lal Malla 6-11, 11-5, 11-8, 12-10.The Indian pair, who got a bye in the opening round, took 22 minutes to defeat players from the Himalayan nation. Also booking a third round berth in the men’s doubles was the pair of Harmeet Desai and Soumyajit Ghosh as they took just 15 minutes to disptach Yemen’s Omar Ahmed Ali and Mohammed Fahd Gubran 12-10, 11-5, 11-6.In the mixed doubles pre-quarterfinals, the combine of Amalraj and Madhurika Patkar rallied to beat Japan’s Seiya Kishikawa and Ai Fukuhara 5-11, 13-11, 11-8, 11-4 in 26 minutes to reach the quarter-finals.last_img read more

Cross continent magic

first_imgThe British Council, the UK’s international organisation for cultural relations and educational opportunities, brings to India Folk Nations Co?ncerts. This troupe is an outcome of Folk Nations, a programme by British Council that highlights folk culture across the UK and India through music. The three-city India tour, starting off with Delhi and ending with Shillong, will witness performances by renowned musicians Patsy Reid (Scotland), Hannah James (England), Georgia Ruth (Wales), Saurav Moni (India), Suhail Yusuf Khan (India) and James Mackintosh (Scotland). Also Read – ‘Playing Jojo was emotionally exhausting’Folk Nations is a British Council project that was devised to foster creative exchange and collaboration between traditional artists from the UK and the Indian Sub-continent. Following a week-long residency in February 2013 by British Council & English Folk Dance and Song Society (EFDSS) inviting a group of UK and Indian folk musicians, the musicians shared their folk music traditions and heritage, collaborated and immersed themselves in a week of intense music making. Also Read – Leslie doing new comedy special with NetflixThe six member group travelled to perform at Celtic Connections and London’s Alchemy Festival at Southbank Centre. The troupe represents a delicate weaving of UK and Indian folk that speaks immediately to the cultural heritage of these regions as well as its place in the contemporary music industry. Indian audiences will witness this showcase of original folk music collaborations among musicians from Scotland, England, Wales and India in Delhi, Kolkata and Shillong. For these concerts the British Council is pleased to partner with the Indian Council for Cultural Relations (ICCR) and the Government of Meghalaya, Department of Arts and Culture.WHEN: 15 October, 6.30 pm WHERE: Kamani Auditoriumlast_img read more

2 held with 32 kg charas from IndoNepal border

first_imgDarjeeling: Two persons, including a citizen of Nepal were arrested from the Indo-Nepal border and Charas recovered in a joint operation by Sashastra Seema Bal, 41st Bn and the Narcotics Control Bureau (NCB).In another incident, a similar joint operation by the SSB, 17th Bn and the NCB in Falakata two persons were arrested and Ganja seized from their possession.Based on a tip off, two persons were apprehended from Dudhghat area under the Khoribari police station area on Thursday night. Ganesh Tamang, a Nepali citizen and Luka Sherpa, a resident of Kalimpong were arrested. Also Read – Rain batters Kolkata, cripples normal life3.2 kg of Charas was seized from them along with four debit cards, three mobile phones and Indian, Nepali and Bhutanese currency were recovered from their possession.During the interrogation, it was revealed that the Charas was being smuggled from Nepal to Kolkata through Siliguri. Police have initiated an investigation.In another incident, NCB and SSB apprehended a Bolero pickup van at Falakata in the Alipurduar district on Friday morning. 322 kg of Ganja was recovered from the vehicle leading to the arrest of one Naren Dutta and Namal Saikia, both from Assam.The consignment was being brought from Senapati district of Manipur and was to be delivered in Siliguri.last_img read more

Dwayne Johnson wanted for The Wolf Man

first_imgActor Dwayne Johnson is reportedly being eyed by Universal Pictures to play the lead role in its The Wolf Man reboot. The project is part of its plan to revive its classic monsters.It will be included in the studio’s shared monster universe, which is being overseen by Alex Kurtzman and Chris Morgan, reports Morgan wrote the screenplay of Furious 7.There is no confirmation yet from the actor and no other details about The Wolf Man are available as of now.  It has been reported that other famous characters such as the Mummy, Frankenstein and Dracula will inhabit the same universe and interact with one another across films and plots.  The Wolf Man reboot is scheduled to release on April 13, 2018.last_img

Funds in KMC fixed deposit to be spent on providing amenities

first_imgKolkata: Mayor Firhad Hakim reiterated on Monday that funds in the fixed deposit of the civic body will be utilised only for development work and civic amenities and any wastage of such funds will not be tolerated.Replying to a query from Congress councillor Prakash Upadhyay regarding the existing amount in the fixed deposit of the Kolkata Municipal Corporation (KMC) at the monthly meeting, Hakim said: “We have an amount of Rs 17.10 crore till February 2018. The funds in the fixed deposit, whether it is more or less, does not matter. What matters most is offering services and civic amenities to the people. Since the Trinamool Congress took over the board of the KMC in 2010, it has provided civic amenities in the form of potable drinking water, lights, development of slums, an overhaul of the drainage system, scientific plan for solid waste management etc.” Also Read – Bose & Gandhi: More similar than apart, says Sugata BoseAccording to Hakim, when Subrata Mukherjee of the TMC ended his term as the Mayor in 2005, the amount of fixed deposit stood at Rs 377.16 crore. When Bikash Bhattacharya of the Left Front board took over as Mayor, he sold a number of plots of land and the fixed deposit went up to Rs 721.25 crore. Hakim further informed that when Bhattacharya’s term as Mayor ended in 2010, he left Rs 588. 67 crore in the fixed deposit of the KMC. “The revenue earning is a part our job but our main aim is to ensure that the citizens get the best of amenities,” he maintained. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataThe Mayor further said that the KMC has set a target of three years to ensure the supply of potable drinking water to every single pocket in the city. “There are problems in certain pockets, particularly in the added areas in the southern part, and we are taking all possible measures to augment water supply. The capacity of the Garden Reach Waterways is being raised by 25 million gallon and we are also constructing small booster pumping stations in these areas to boost water supply,” he added.last_img read more

Craft fair to usher in new year

first_imgA fortnight of cultural performances and an event to celebrate Indian art, crafts, and textiles, Dastkari Haat Samiti returns with the much-awaited crafts bazaar of the year. Conceptualised by textile revivalist Jaya Jaitly, the 33rd edition of the Bazaar will open on January 1, 2019, at Dilli Haat, INA, Delhi.The event will also feature workshops and performances by Mushtaq Ahmed, a flute maker from Varanasi; Moorala Marwada, a Sufi folk singer from the Janana village of the Kutch District, Gujarat who will sing the Also Read – Add new books to your shelfpoetry of Kabir, Mirabai, Ravidas and others; and Bhawani Kalindi and his group from Bengal who will perform the exotic tribal martial Chhau dance throughout the tenure of the bazaar. The distinctive line-up of the 15-day event includes craft and skill exchange program with Indonesia, supported by the O/o Development Commissioner Handicrafts, Ministry of Textiles. The workshop will begin from January 2 with Indonesian artisan who excel in doyo fibre craft, pottery, tie, and dye and batik work paired with their Indian counterparts V, Sadanandam and Y Sridhar in fibre weaving, Telangana and AP, Harikishan in Pottery, New Delhi, Sabina Khatoon in Batik, West Bengal, and Abdul Wahab Khatri in tie and dye, Gujarat. The innovative art pieces thus created will be displayed in the last two days. Also Read – Over 2 hours screen time daily will make your kids impulsiveEstablished in 1986, Dastkari Haat Samiti helps over 60,000 artisans by organising annual crafts bazaar all over India that provide them with the exposure and bring them into direct contact with the urban customer. Supporting over 350 crafts groups across the 29 Indian states, the organisation believes in helping artisans and their families in every possible way. “Since the inception in 1986, our aim has been to break the barriers between the craftsmen and community by giving them a platform to showcase their craft. Our annual craft bazaar at Dilli Haat brings that authenticity of handloom and handmade products back with traditional weaves, sustainable home decor and so many more crafts from different states of India.”, shares Jaya Jaitly, Founder of Dastkari Haat Samiti. The craft bazaar will feature everything from a wide range of Vankar shawls of Gujarat, Banarasi textiles from Uttar Pradesh, Handloom Fabrics from Bengal, Bandhani from Gujarat, Handwoven Chanderi, Softest of Pashminas, Ajrakh block printing, Kantha embroidery, Pattachitra paintings, Inlay furniture, papier mache, carpets, durries, home decor accessories and organic products.last_img read more

City looks at heavy rainfall on Sunday after 48 hrs of discomfort

first_imgKolkata: The city-dwellers may witness hot and humid weather in the next two days before a heavy shower hits the South Bengal districts on Sunday, predicted the Regional Meteorological Centre in Alipore.The weather office, however, says that scattered rainfall may occur in various places of South Bengal in the next two days. But the rain will not be able to bring down the temperature and reduce the humidity level. The weather office says that the temperature will go down slightly in the city and the South Bengal districts following the heavy rain expected on Sunday. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataIt may be mentioned here that Bengal has received less rainfall in June compared to previous years, due to the late onset of monsoon and an irregularity in the rainfall. The situation may not improve in the current month as there may be a rain deficit in the state. The paddy cultivation has also been affected in different districts due to scarcity of rainfall. Various crops were also damaged due to high humidity levels. The rain deficit in the last month has affected the farmers and they may face a similar fate in July as there is also a prediction of rain deficit in the current month as well. Also Read – Lightning kills 8, injures 16 in stateWeather experts said that the monsoon deficit in South Bengal currently stands at 48 percent, while the North Bengal districts have received heavy rainfall ever since the South-Western monsoon made incursion into the region. A weather official said that the sky in the city and in various other South Bengal districts remains mostly cloudy as of now. Once the cloud disappears, the mercury and humidity may further go up. It is expected that people in South Bengal may have to face discomfort for another two days. Once a heavy rain lashes the city, the humidity level will go down. The irregular rainfall has also been affecting the people, many of whom are complaining of fever and other ailments due to the fluctuating weather. The city doctors have also issued some tips in order to stay fit. They said children should drink more water and avoid spicy foods. People have been advised to bathe twice a day to get relief from the hot weather condition. They have also asked the people to avoid direct sunlight.last_img read more

Kankinara 55yrold man dies in blast while making bombs

first_imgKankinara: A 55-year-old man on Friday succumbed to injuries he suffered in a low-intensity bomb blast at a Kankinara club in North 24 Parganas on Friday.The incident took place on the rooftop of the club, Ramnagar Yuva Sangha, in Ramnagar Colony under Bhatpara police station area. The deceased has been identified as Bishu Sarkar. “The bomb went off during manufacturing. So far, no one has been arrested,” DCP Barrackpore Ajay Thakur told The Indian Express. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: Mamata Bhatpara has been tense since the Lok Sabha polls. The Bharatiya Janata Party, which won 18 Lok Sabha seats, and the Trinamool Congress have accused each other for a string of incidents of violence. At least two people were killed and 11 others injured in various incidents of violence in Bhatpara-Kankinara, long considered a TMC stronghold, since the Lok Sabha polls. Despite repeated attempts by police to maintain law and order, the situation remains volatile. Also Read – Lightning kills 8, injures 16 in state As per sources, local residents were panic-stricken as the sound of a blast could be heard from distance late on Thursday night. Local residents found Sarkar in a pool of blood. He was taken to Bhatpara State General hospital and referred to Kalyani General Hospital. He received multiple splinter injuries. On Friday morning, he succumbed to his injuries. According to police, the club gate was locked from outside when the incident took place. Police teams are conducting regular marches in sensitive areas such as lane number 3 and 5 in Kankinara. Sources said a few were detained. Police continued to appeal to people through loudspeakers to maintain peace in the area and not to pay heed to rumours. Extra forces have been deployed in the area for patrolling. On Thursday, police recovered a few crude bombs in separate raids in Kankinara. Nine people were arrested. (With inputs from Indian Express)last_img read more

When General Custer met Don Juan A tale of two horses

first_imgGeneral George Armstrong Custer’s name is synonymous with the evolution of America as we know it today. He was a man who arguably lived fast and died young, aged 36. Custer became a hero of the American Civil War, known as much for his attention-seeking behavior as for his triumphs. He also fell foul of his impetuous nature a few times, such as in 1867 when the war had been over a couple of years. The General was battling the Cheyenne, but the target turned out to be his own horse.Brevet Major General George Armstrong Custer, United States Army, 1865.Worst of all, there wasn’t an Indian in sight. Custer was hunting buffalo at the time and gave chase when he spotted a potential trophy. Unfortunately, his aim was off and he wound up executing his steed with a surprise headshot. As PBS went on to relate, he was in quite a predicament following the accident: “On foot, bruised and totally lost, he had to be rescued by his own men.”Custer (extreme right) with President Lincoln, General McClellan and other officers at the Battle of Antietam, 1862.This wasn’t the brave and hardy soul who’d taken risks and helped Union forces beat back the Confederates. But then, as with all legends, a certain amount of the story was embellished. Custer was a military man yet also a showman. He wouldn’t have promoted the embarrassment of his dead horse.Custer (left) posing with Grand Duke Alexei Alexandrovich of Russia, 1872.However, there was a second equine that he was more than keen to show off, one he’d invested a lot of his time in. Don Juan was a striking creature, described in a 2015 article from the Smithsonian as “a beautiful thoroughbred stallion: more than 15 hands high; solid bay with black legs, mane and pert tail; and a proud, erect head.”Custer (left) with Alfred Pleasonton in Autumn 1863.Custer rode the valuable horse without letting people know about one important detail. Don Juan wasn’t his. In 1865, with the Civil War over and the country slowly returning to some semblance of normality, the horse was taken from Clarkesville, Virginia. To the surprise of his groom, men in Union cavalry uniform arrived saying the stallion was theirs.Custer and Bloody Knife (kneeling left), Custer’s favorite Indian Scout.Ten days earlier Custer had been promoted to Major General. He appears to have viewed Don Juan as a spoil of war. He saddled up his prize for the Grand Review of the Armies, where the Union proudly marched through Washington D.C. to a rapturous reception. In a strange precursor of what happened in 1867, Custer suffered another horse-based calamity. This one wasn’t fatal, but it happened in full view of the assembled masses.Custer and his wife at Fort Abraham Lincoln, Dakota Territory, 1874.The crowds and the noise didn’t agree with Don Juan, who bolted when flowers were thrown at his rider in tribute. Custer got him under control and it certainly looked dramatic, but the public wobble wasn’t his finest hour. As the Smithsonian put it, “It was a splendid display of horsemanship, but also an embarrassing break in decorum… Custer sat astride his sin, and it had nearly proved too much for him.”Cowboy slang we should all be usingThe article saw the troubled relationship between man and animal as indicative of a wider issue with Custer, namely a perceived decline in character. He could be flighty and tough, yet further qualities were added in the later stages of his life. It suggests the theft of Don Juan as a defining moment in Custer’s reputation, and a point from which the man’s ego arguably took the reins of his mind.Custer with ex-classmate, friend, and captured Confederate prisoner, Lieutenant James Barroll Washington, an aide to General Johnston, at Fair Oaks, Virginia, 1862.Don Juan’s true owner was Richard Gaines, who unsuccessfully pursued Custer to retrieve his property. Unfortunately for Gaines, the hero of the Civil War had some powerful friends, and he couldn’t wrangle the horse from his clutches.George and Libbie Custer, 1864.That frustration may have turned to grim amusement after what occurred in 1866. Custer had paraded Don Juan at the Michigan State Fair, in the hope of cashing in on his investment. His career had moved from the heat of the battlefield to the comfort of high society and he hoped to make his home among the entitled.There was an ironic twist to the tale. A month after appearing at the fair, Don Juan passed away. The cause of death was not a gunshot, but a burst blood vessel.George Armstrong Custer, c. 1865.The Smithsonian presents the story as something that put the brakes on Custer’s increasingly arrogant outlook. An individual who made his name on the cusp of great change in his home nation. And also someone who ultimately could not adapt to life in its wake.USMA Cadet George Armstrong Autie Custer, c. 1859.“Custer represented the Republic’s youth, the nation as it had been and never would be again. Like much of the public, he held to old virtues but thrilled to new possibilities. Yet whenever he tried to capitalize on the new America, he failed—beginning with a stolen horse named Don Juan.”Read another story from us: The life of Queen Ankhesenamun, sister and wife of TutankhamunWhen Custer snuffed out his ride the following year, it had the hallmarks of a major error in judgment. The incident was also bizarrely appropriate, reflecting the soldier’s complex interactions with horses.Steve Palace is a writer, journalist and comedian from the UK. Sites he contributes to include The Vintage News, Art Knews Magazine and The Hollywood News. His short fiction has been published as part of the Iris Wildthyme range from Obverse Bookslast_img read more

A Secret Knights Templar Tunnel that Remained Hidden for 700 Years

first_imgIn the Middle Ages, crusaders from the Latin West left an indelible mark on the cities of the Near East, constructing castles and fortresses that would withstand successive waves of conquest. Many of these castles still stand today, and in some cases, remain in use. Krak des Chevaliers, perhaps the most iconic crusader castle, was even occupied and used as a military base in the recent Syrian conflict.Templars Tunnel. Photo by Dennis Jarvis CC BY SA 2.0However, many of these impressive structures have yet to give up all of their secrets. Even in the late 20th century, crusader structures were still being discovered in the Levant, the most notable of which was the 350 meter (985 feet) “Templar tunnel” running underneath the modern city of Acre. These discoveries continue to shed light on this fascinating period of Middle Eastern history.Remains of the Crusader-period Pisan Harbour. Photo by Dainis Matisons CC BY 2.0The Templars were a military religious order, originally founded to ensure the safety of the regular stream of pilgrims that made the arduous and dangerous journey from Western Europe to the Holy Land.According to historian Dan Jones, they were so named because their original headquarters stood next to the Temple of the Lord in Jerusalem, and in the 12th and 13th century they played an important role in defining the political and military successes (and failures) of the crusader states in the Levant.Pictures depicting the Knights Templar (brother-servant, a brother-brother Knight and priest)In 1187, however, the city of Jerusalem was lost after a decisive victory by the Ayyubid leader Salah ad-Din (otherwise known as Saladin) at Hattin. The crusader states had lost their capital, and their shock defeat at the hands of a powerful Muslim army launched what would later be known as the Third Crusade.According to Jones, several large armies set out from England and France to provide aid to the beleaguered crusader kingdoms, with the goal of reconquering Jerusalem.Seal of the TemplarsThis was a vain hope, and the armies of the Third Crusade, led (amongst others) by Richard the Lionheart, would eventually leave without reclaiming Jerusalem. However, they did manage to recover the important port city of Acre.Following a long siege led by the king of Jerusalem, Guy de Lusignan, the Muslim inhabitants of the city surrendered, and Acre became the new capital of the crusader states.Ever fearful of a renewed attack by Saladin and his successors, the Templars set about constructing an impressive fortress at Acre. The settlement was already well protected by high walls and the surrounding sea, but the new Christian occupants proceeded to construct seemingly impenetrable defenses.According to Jones, Acre was a strategically significant Mediterranean port, and controlling it was key to controlling access to the rest of the region. However, this meant that it was constantly under threat, both from enemies outside its walls, and from infighting amongst those within.This may explain why the Templars decided to construct a secret underground tunnel, leading from the fortress to the port. This would ensure a quick, easy escape for any inhabitants in case the city was overthrown and could provide a useful, secret channel for supplies if the city was besieged.Templars Tunnel – Crusader Structure – Akko (Acre). Photo by Adam Jones CC BY SA 2.0However, in 1291, disaster struck. Acre was attacked and taken by the Mamluk ruler of Egypt, Sultan al-Ashraf Khalil, and he ordered that the city be razed to the ground to prevent further Christian reoccupation. This once-pivotal, strategic port fell into insignificance.However, in 1994, over 700 years after the fall of the fortress, a startling discovery was made by a woman living in the modern city of Acre. When she sent a local plumber to investigate the cause of her blocked drains, he stumbled into a medieval tunnel running right underneath her house.The Templar Tunnel. Photo by Tango7174 CC BY-SA 4.0Further excavations revealed that the tunnel had been constructed in the Crusader period, and ran all the way from the fortress to the port. This was an extremely significant discovery, as it’s one of the rare pieces of Crusader architecture in Acre to have survived the invasion of the Mamluks.Read another story from us: Untouched and Unlooted 4,400-yr-old Tomb of Egyptian High Priest DiscoveredToday, it’s even possible to visit the tunnel, which has been fully restored, cleaned and drained. Although the Templar fortress may be long gone, modern tourists can still walk in the footsteps of these crusading knights, 700 years after their deaths.last_img read more

Jay Cutler dressed up like a franchise quarterback for Halloween and beat

first_img His 11-yard TD toss to Alshon Jeffrey in the 3rd quarter, gave the Bears an insurmountable, 20-3 lead. Most of all, Cutler was engaged, instead of a black cloud of imminent death patrolling the sidelines.Jay Cutler pass doinks off Alshon Jeffery’s helmet.— ⓂarcusD2.0 (@_MarcusD2_) November 1, 2016 Jay Cutler dressed up like a franchise quarterback for Halloween, and handed the Vikings their second loss of the season, 20-10, and their second loss in a row after an undefeated start. Maybe Cutler only gets up for games when he has the chance to give his employer a gigantic middle finger, but last night he played well.Reports from Chicago earlier in the week indicated that head coach John Fox was “done” with Cutler as the starting quarterback for the Bears. Apparently, those reports were premature.Fox may have reconsidered his position when back up Brian Hoyer, who had been playing out of his mind, went down with a broken forearm. The only remaining QB on the roster was former-Trojan almost-great, Matt Barkley. Not good enough to win games. If he’s the only other option, rolling out Cutler was a no-brainer.Cutler didn’t disappoint in his return. He lit up the Vikings like a Camel filter at last call. He was 20/32, and threw for 252 yards and a touchdown in what was easily Chicago’s best game of the year against the now two-loss Vikings. Advertisementcenter_img The beauty of the situation in Chicago is that it doesn’t matter whether you like Jay Cutler or not. He’s playin’, screw you. Time to dust off the old rifle for one last shootout.The Bears are done with Jay Cutler, just not quite yet. They got the W last night. A motivated Jay Cutler is tantalizing prospect, but it’s really just a desert mirage.Jay cutler looks good tonight— Martin Brian Ansah (@DaAnsahonSports) November 1, 2016last_img read more

VIDEO Man forcibly dragged off overbooked flight for not giving up his

first_imgAir travel isn’t what it used to be. People today feel more like cattle herded into an overcrowded flying tin barn than valued customers.Just when you thought flying commercial couldn’t get any more demeaning, a video surfaced today of a man – reportedly a doctor – being forcibly dragged off an overbooked United flight from Chicago to L.A.Apparently, the poor guy was selected as the passenger to give up his seat. He refused. That’s when United made the genius decision to drag him off the flight while bloodied and screaming. It’s like an awful scene out of Fahrenheit 151.Of course, the entire thing was captured on video. It will probably be Exhibit A in the massive lawsuit this guy is about to file. Also, way to just sit there and do nothing, everyone on the damn flight. Pathetic. Advertisement Here’s the video of the PR disaster as it unfolded:When a passenger refused to leave an overbooked United flight, he was forcibly dragged off the plane— . (@earth_universee) April 10, 2017last_img read more

The Seahawks Owed Russell Wilson

first_imgAlso:– Patrick Beverly already inside KD’s head– Ben Simmons has Cam Newton-like inconsistency– Colin’s big NBA bet– Clippers making the case for Kawhi to join– Colin chooses Russell Wilson or…. Guests:Doug Gottlieb, Matt Barnes, Albert Breer, and Jim Jackson The Seahawks owed Russell WilsonRussell Wilson and the Seahawks agreed to a massive 4-year/$140 million extension last night, after Wilson imposed an April 15 deadline to reach a long term deal, and Colin thinks Wilson’s hardball contract tactics were brilliant, and Seattle owed him.Wilson turned around the sputtering franchise when he entered the league, but for some reason has never gotten the respect from teammates, Pete Carroll, and the front office to match what will be a Hall of Fame career. This contract helps turn the page and makes Russ the unquestioned leader of the franchise. It was smart for Seattle to pay up and move ahead.last_img read more

Cell Phones as Bar Code Scanners

first_img Growing a business sometimes requires thinking outside the box. 2 min read Though much of the marketing via mobile phones has focused on content sent to phones, today’s handheld interactive devices offer another promotional opportunity–one that Japanese businesses are already profiting from. Using bar code scanners added to camera phones and PDAs, customers can scan bar codes in-store and conduct price checks, or take a photo of a bar code with their web-enabled mobile device, then e-mail the code in to get more information or a special offer.Mobile devices in the U.S. are already equipped with these capabilities and might even include bar code scanners, but U.S. consumers haven’t jumped on the scanning bandwagon–yet. “It’s on a fast path for widespread adoption by U.S. businesses,” says David Hogan, chief information officer of the National Retail Federation, the nation’s largest retail trade group.Companies like NextCode and PaperClip assign designations to pre-existing bar codes so web-enabled mobile devices connect that code with a particular website, eliminating time-consuming texting on tiny keyboards. The applications are numerous, says Hogan. “Customers can simply download a coupon or discount, or be connected to information about [a product].”Hogan says the technology is relatively new in the U.S., but expects it to gain popularity within the next couple of years. “It allows consumers to buy or compare prices online or drives them into stores through special offers.” This story appears in the September 2006 issue of Entrepreneur. Subscribe » Free Webinar | Sept. 9: The Entrepreneur’s Playbook for Going Global September 1, 2006 Register Now »last_img read more

Quiz Blackberry or iPhone

first_imgApril 10, 2009 Trying to decide between a BlackBerry and an iPhone? Take this quiz to find out which one’s for you.1. Which feature is most important to you in a mobile phone?a. Top-notch securityb. A slick interface2. When on the go, what do you need most?a. Turn-by-turn directions to client meetingsb. Info on nearby businesses3. Which do you use more?a. IMb. SMS4. How often do you need to check your e-mail?a. If it’s not instant, I feel behind.b. Every 15 minutes or so is enough for me.5. Are you a major multitasker?a. I have as many programs open as possible atany given time.b. I prefer to do one thing at a time, thank you.6. Which wireless carrier are you partial to?a. I like to keep my options open.b. AT&T is it for me-despite famously bad coverage.7. Do you like customizing your gadgets?a. I want them to do everything right out of the box.b. I love finding new apps and add-ons to increase productivity.If you answered mostly As, you want a BlackBerry to tap into its leading-edge enterprise functions and cross-carrier flexibility.If you answered mostly Bs, pick up a sleek and sexy iPhone for a stylish, customizable mobile experience. This story appears in the May 2009 issue of Entrepreneur. Subscribe » This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience. Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Now Enroll Now for Free 2 min readlast_img read more