New Triton submarine in race to reach ocean bottom

first_img Triton currently designs submersibles capable of going to a depth of 3,300 feet and are predominantly made for yacht owners and scientists. Their new design, according to CEO Bruce Jones and his team, is called with Triton 36,000 and will be able to reach that depth. Explore further Branson unveils ‘flying’ sub to plumb ocean depths Unlike the two-man Trieste, the new Triton 36,000 will be designed to hold 3 people. The glass submersible will be required to undergo extreme testing at a pressure rate of at least one and a quarter times that of the planned depth. Joining in the battle to reach the ocean floor is James Cameron’s submarine powered with an electric motor and made of composite materials. Richard Branson is also working on his flying underwater craft and is constructed with carbon fiber and titanium with a quartz viewing dome. Triton1000 Current submersibles use acrylic for the passenger compartments; however, this new design will be using a thick glass shaped in a sphere with a technique created by Rayotek Scientific, whose clients include 3M, Boeing, DuPont and NASA.According to Rayotek CEO Bill Raggio, the borosilicate glass (soda-lime glass) gets stronger under compression, so the underwater pressure found at the ocean’s bottom should not cause it to crack. Because of the fact that the expansion and contraction rates are different in metal and glass, areas where the two join can become an issue. Rayotek has created a new patent pending technique which turns the glass into a sphere and more details cannot currently be released.center_img © 2010 PhysOrg.com (PhysOrg.com) — Step back to 1960 when Trieste, the first and only manned vessel, reached the deepest known part of the ocean called Challenger Deep in the Mariana Trench near Guam. No other vessel has ever managed to reach this depth of near 36,000 feet. In an announcement this week, Triton Submarines hopes to be the next to reach this great depth in a newly designed submersible. More information: www.race2innerspace.com/ Citation: New Triton submarine in race to reach ocean bottom (2011, April 27) retrieved 18 August 2019 from https://phys.org/news/2011-04-triton-submarine-ocean-bottom.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

Researchers uncover Yak genes responsible for their altitude tolerance

first_img More information: The yak genome and adaptation to life at high altitude, Nature Genetics (2012) doi:10.1038/ng.2343AbstractDomestic yaks (Bos grunniens) provide meat and other necessities for Tibetans living at high altitude on the Qinghai-Tibetan Plateau and in adjacent regions. Comparison between yak and the closely related low-altitude cattle (Bos taurus) is informative in studying animal adaptation to high altitude. Here, we present the draft genome sequence… Citation: Researchers uncover Yak genes responsible for their altitude tolerance (2012, July 3) retrieved 18 August 2019 from https://phys.org/news/2012-07-uncover-yak-genes-responsible-altitude.html The Yak (Bos grunniens for the domesticated variety) is a long haired bovine that lives in the Himalayan part of Asia and has been used by people in a variety of ways over the long history the two have shared, e.g. for transport, farming, food and shelter. Up until now however, the DNA of the animal had not been thoroughly studied.In this new research, the team has found that the Yak possesses several genes that make it particularly suited for high altitude living. Three of them help to regulate its response to low levels of oxygen in the air, which can result in hypoxia, a condition that causes distress in other animals, such as difficulty breathing, panic, nausea, dizziness and of course passing out altogether and edema, which is where fluid collects in the tissues. The team also found five unique genes that control the way energy is obtained from the food the Yak eat, optimizing for the scarce amount available, allowing them to survive on a diet that would not support other animals of its size.The genetic findings by the team are expected to lead to advances in research in other areas, such as ways to help people better tolerate the extreme conditions present at high altitudes and perhaps better ways to treat those that succumb to its effects. © 2012 Phys.Org Heart-healthy yak cheese (Phys.org) — For some four thousand years, people in Tibet have relied on Yaks to help them survive in the high altitudes in which they live. The Yaks have proven over time that they are far better at dealing with high mountain living than are cows, which are more prevalent in other societies around the world. Scientists have known for years that cows and Yaks are closely related, and that the two were once the same species, having diverged just shy of five million years ago, which is roughly the same time span that humans and chimps went their separate ways. Now, new research by an international team of biologists and geneticists has taken apart the Yak genome and found, as they describe in their paper published in Nature Genetics, the genes that are responsible for allowing the Yak to thrive at such high altitudes.center_img Venn diagram showing unique and shared gene families between the yak, cattle, dog and human genomes. Image (c) Nature Genetics (2012) doi:10.1038/ng.2343 Explore further This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Journal information: Nature Geneticslast_img read more

Physicist proposes simple experiment to detect foamlike structure of the universe

first_img Explore further More information: Is a tabletop search for Planck scale signals feasible, arXiv:1211.3816 [gr-qc] arxiv.org/abs/1211.3816AbstractQuantum gravity theory is untested experimentally. Could it be tested with tabletop experiments? While the common feeling is pessimistic, a detailed inquiry shows it possible to sidestep the onerous requirement of localization of a probe on Planck length scale. I suggest a tabletop experiment which, given state of the art ultrahigh vacuum and cryogenic technology, could already be sensitive enough to detect Planck scale signals. The experiment combines a single photon’s degree of freedom with one of a macroscopic probe to test Wheeler’s conception of “spacetime foam”, the assertion that on length scales of the order Planck’s, spacetime is no longer a smooth manifold. The scheme makes few assumptions beyond energy and momentum conservations, and is not based on a specific quantum gravity scheme. Set up of suspended blocks showing (dotted) the alternative paths for the photon. E is the single-photon emitter, D and D’ are the single-photon detectors. BS denotes the beamsplitter and M the mirror. DL is the fi ber optics delay line, and EB are the electronics that trigger D and D’ through cable C. The optical elements to widen the beam before and focus it after each block are left out for clarity. In the real experiment the blocks would hang side by side. Credit: arXiv:1211.3816 [gr-qc] Citation: Physicist proposes simple experiment to detect foam-like structure of the universe (2012, November 23) retrieved 18 August 2019 from https://phys.org/news/2012-11-physicist-simple-foam-like-universe.html Journal information: arXiv (Phys.org)—Prominent physicist Jacob D. Bekenstein, of the Hebrew University of Jerusalem, has proposed a simple experiment in a paper he’s uploaded to the preprint server arXiv, that he says could be used to measure quantum foam. Instead of looking to ever faster particle accelerators, he proposes using an ordinary block of glass, a laser and a detector.center_img Hi-fi single photons 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. © 2012 Phys.org Quantum foam is a term used to describe the non-smooth nature of the universe. It was coined by John Wheeler who in the 1960’s noted that according to quantum mechanics, certain properties of spacetime have some degree of uncertainty related to them. Later researchers have expanded on the idea, suggesting that on a quantum scale, the universe is made up of individual units which are thought to be rife with very small black holes that pop in and out of existence, resulting in foam-like images for those who try to imagine what it might look like.Until now, trying to measure, or prove that theories about quantum foam are true have failed due to the extraordinarily small scale of the particles involved, 1.6 × 10-35, known as the Planck length. In his paper, Bekenstein proposes an entirely new way to approach the problem. He says all that needs to be done is to fire a single photon through a block of glass and then measure how much the block moves.The idea is to use just the right size block and wavelength of a photon such that if the photon did move the block’s center of mass, it would be just one Planck length. If the universe is truly grainy, as theorized, the photon would encounter one of the tiny units which would inhibit its progress; if not, the photon would pass all the way through with no problem. Because theory suggests there are a very large number of undetectably small black holes in every part of the universe, it would seem reasonable to assume that the glass block’s center of mass could fall into one, which would of course impede the movement of the block. Thus to detect the presence of theoretical foam, all researchers would have to do is fire many individual photons through a block of glass and see how many make it through using a detector on the other side.last_img read more

All you want to know about India Art Fair

first_imgThis is the time for the arty farty and the collectors to descend at the NSIC grounds in Okhla where the fifth edition of India Art Fair started on Thursday. The fair features 103 exhibitors from 23 countries. It is laid out in three adjacent gallery space with separate sections devoted to multi-media art and a speakers’ forum which will host more than 40 speakers over three days. From masters to relative newbies — they are all there with their works. So you have works by Akbar Padamsee in a solo by Priyasri Art Gallery.  On display are his recent oils along with a 12 ft mirror image, oil on canvas along with his other important oils. Also Read – ‘Playing Jojo was emotionally exhausting’Gallery Ragini is displaying works by six Indian contemporary artists in a show called The Unbearable Lightness of Becoming. Artists include Ravi Gosain, Vishakha Apte, Saptarshi Das, Dhanur Goyal, Rashmi Mala and Tanya Gill.Kolkata gallery Experimenter is showing works by Bani Abidi, Rathin Burman, Adip Dutta, Nadia Kaabilinke, Naeem Mohaiemen and Hajra Waheed. The focal point? All of them respond to the moment of fracture of cities under crisis, duress, revolution and the taut and fragile relationship of people who live in them.Kathakari by Sidharth at the Gallery Art Konsult booth is about India’s ancient art of storytelling where the artist reinvents the tradition, picking up the anecdotes and characters from his life and turning them into visuals.Then Absolut is showcasing the collections which include Absolut Seth, Absolut Kher and Absolut Subodh Gupta.Worth a watch!last_img read more

Gauhar Khan has a sweet tooth

first_imgEvents like weddings, house warming, inaugurations, receptions are just a few among  the many functions that we north Indians celebrate unmatched enthusiasm. We invite family, friends, relatives, acquaintance, everyone! And then there is an inflow of gifts! Lots of them! Among the variety, there is one that stands common, Sweets! From kuch meetha ho jaye to ‘try this lovely shondesh’, we love sweets! We were a part of one such wedding like inaugural ceremony of a sweet shop, Kesar. Wondering how can Dilli walas celebrate without some glamour? It was Gauhar Khan who added the tadka. At the launch of Kesar, she cut a fabulous cake and congratulated the whole team of the Kesar’s for creating an unprecedented concept in India. In her address to the audience, Gauhar said, ‘I used to feel nostalgic about Dubai; my hometown, just for my cravings toward Arabic sweets and Turkish delights. With the launch of Kesar’s these nostalgic feelings come to an end and I am more than cherished to find these zero calories sweets here in Delhi’.Kesar’s sweets baskets comprises 250 varieties of designer sweets, 120 types of Arabic sweets, more than 50 types of Turkish delights and around 70 types of imported Swiss and Italian chocolates. Located right next to the most loved Gulaab store in Pitampura, we still need to see how the store does!last_img read more

Life of an artist

first_imgHungarian Information and Cultural Centre (HICC) in association with Oxford University Press presents the Book Launch of Amrita Sher-Gil- Art and Life, A Reader, edited by Yashodhara Dalmia. The book will be released by  Szilveszter Bus, The Ambassador-Designate of Hungary on 19 November at HICC’s audiotorium.The programme will ?include an illustrated lecture ‘Amrita Sher-Gil, Paris, and the Bloomsbury Group’ by an art historian, Giles Tillotson and a special screening of the film Amrita Sher-Gil: The Bridge Builder, directed by Ebrahim Alkazi. Also Read – ‘Playing Jojo was emotionally exhausting’Unacknowledged during her life and considered an icon post her death, between these polarities lies the journey and the struggle for expression of one of the most enterprising and innovative artists of our times, Amrita Sher-Gil (1913-1941).In this collection, Karl Khandalavala, GHR Tillotson, KG Subramanyan, and N Iqbal Singh, among others, ponder on many aspects of Amrita’s short but impactful life dedicated to art. With Charles Fábri’s fictional account of the travails of a young artist in Lahore in the 1940s carrying an unmistakable resemblance with the influential and avant-garde artist, the volume also includes a piece by Amrita on her evolution as an artist. Accompanied by rare black and white and colour visuals, this book brings together modern and contemporary critiques as well as early writings by past masters.last_img read more

Woman murdered former husband suspected

first_imgA 25-year-old woman was found dead in her rented house in South Delhi’s Tughlakabad Extension on Friday. Police said the house was ransacked, but nothing valuable was missing.Rekha Bhardwaj lived in the two-bedroom house with her second husband Pradeep Kumar for the past one year. It was a second marriage for Pradeep as well, who works as a consultant with a private company in Haryana’s Faridabad district. Initial probe has pointed the needle of suspicion towards involvement of Rekha’s former husband.  Also Read – Company director arrested for swindling Rs 345 croreTheir neighbours told police about an argument Rekha had with somebody at her house for almost an hour on Friday afternoon. “It was a few hours before Rekha’s body was found by Pradeep,” said a police officer. The FIR was registered on the complaint of Pradeep, who has been given a clean chit. In his statement, Pradeep claims to have left home for office at around 10.30 am on Friday. “Pradeep reached his office in Faridabad at around 11.15 am. During the lunch break, he called Rekha on her mobile number, but it went unanswered,” the officer added. Pradeep did not take it seriously as he thought that Rekha must be busy with household work. Later in the afternoon, Pradeep made four more calls, but Rekha did not respond.last_img read more

HC adjourns by 1 day PIL seeking withdrawal of Wednesdays BJP bandh

first_imgKolkata: The Calcutta High Court Tuesday adjourned by a day the hearing of a PIL seeking direction to the BJP to withdraw its West Bengal bandh call on Wednesday to protest the killing of two students in North Dinajpur district. A division bench presided over by Acting Chief Justice Debasish Kar Gupta adjourned the hearing as lawyers from the other side were not present in the court owing to the death of a senior lawyer. Trinamool Congress MP Idris Ali, a practising lawyer, pleaded for a direction on his prayers in connection with the BJP-called bandh on Wednesday from 6 am. Also Read – Rain batters Kolkata, cripples normal life The bench, also comprising Justice Sampa Sarkar, directed Ali to serve fresh notices on the BJP, RSS, West Bengal government and Union of India for appearing before the court on Wednesday. The saffron party has called a 12-hour Bengal bandh to protest the death of two students in a high school premises during a demonstration over appointment of teachers in Islampur area in North Dinajpur district. Challenging the bandh call, Ali submitted for petitioner All India Minority Forum general secretary M A Ali, that citizens could not be forcibly prevented from doing their daily work. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killed Idris Ali said the Kerala High Court had held that bandhs were illegal and unconstitutional and the order was upheld by the Supreme Court. The trouble had brewed at Daribhit High School in Islampur over the recruitment of Urdu and Sanskrit teachers as the protesting students said they needed Science and English teachers instead. The students and the locals had stopped two newly-recruited teachers, one for Urdu and another for Sanskrit, from entering the school on September 20 resulting in a clash. The BJP alleged that ITI student Rajesh Sarkar and third-year college student Tapas Barman were killed in police firing, but the police denied the claim. District Superintendent of Police Sumit Kumar has maintained that police did not resort to firing during the incident.last_img read more

State OBC candidates not on Central NEET list Bengal govt urges Centre

first_imgKolkata: As many as 12,000 medical aspirants from Bengal on the state OBC list may not be able to appear for the National Eligibility cum Entrance Test (NEET) next year as their groups did not feature on the Central OBC list.Bengal government had taken up the issue with the Centre urging for the inclusion of OBC candidates from the state otherwise they would be deprived from various examinations including NEET. But no steps have been taken in this regard yet. Also Read – Rain batters Kolkata, cripples normal lifeMany of these candidates might have breathed a sigh of relief when the union Human Resource Development Ministry had assigned the National Testing Agency (NTA) to carry out NEET from the next year. Until the previous year, the Central Board of Secondary Education (CBSE) used to conduct the national level medical entrance examination. The responsibility of conducting the examination shifted after numerous errors were found in the vernacular question paper of NEET this year and there had been a protest by a large section of students from across the country. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedBut NTA might be taking the same footsteps as its predecessor did as it mentioned in the prospectus that the NTA authorities would not take any responsibility for the mistake(s) in regional language question papers and students have to do respective correction(s) in the examination hall according to the English version question(s). Following the issuance of the NTA prospectus, the doctors, students and their guardians have written to Prime Minister Narendra Modi and Union Health Minister JP Nadda seeking their intervention in this regard. Dr Amiya Kumar Maity, formerly attached to SSKM and Dr Priyanka Maity, an ex-medical officer of M R Bangur Hospital, who were among the doctors writing the letter to the PM, said NTA’s announcement admits that it does not have the mechanism to hold a multilingual exam like NEET. Dr Amiya Kumar Maity also said the OBC candidates from Bengal would have to appear for the examination as general category students as there is no specific column in the form for the OBC candidates. Many of these candidates who are above the age of 25 would not be allowed to sit in the exam. When Bengal government used to conduct medical entrance examination of the state, the OBC candidates up to the age of 30 were allowed to appear for the examination. The upward age limit for the general category student in the NEET has been fixed at 25. Apart from English and Hindi, NEET is conducted in 11 other vernacular languages including Bengali, Telegu, Assamese, Odiya etc. Around 75,000 candidates from Bengal are expected to take part in the NEET examination scheduled to take place on May 5 next year. On-line application has started from November 1 and would continue till November 30. “There is an obvious dichotomy as the State government certified OBC candidates, not on the Central list, have been given wrong information saying they are Unreserved or general category students. Instructions also say if they fill up the application form furnishing wrong information, criminal offences could be leveled against them and they would be barred from medical admission,” Dr Maity stated.last_img read more

Deputy chief municipal health officer of Borough 4 suspended

first_imgKolkata: The Kolkata Municipal Corporation (KMC) authorities have suspended a deputy chief municipal health officer of Borough 4 for dereliction of duty. Smita Bakshi, chairperson of Borough 4 along with some councillors of the borough, had complained that the deputy chief municipal health officer was not conducting the outreach camps under the National Urban Health Mission properly. The KMC officials conducted an inquiry and suspended him. It may be mentioned that to improve work culture, the civic authorities have installed biometric attendance of the employees at the KMC headquarters at S N Banerjee Road. The biometric attendance will be installed in phases. Finally, it will be installed in the KMC offices in the boroughs as well. Mayor Firhad Hakim said the work culture of the civic authorities has improved over the past few years but it needs further improvement.last_img read more