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March 27th 2017 Science and Technology Current Affairs

Scientists have Identified a Giant Brown Dwarf which is the Largest of its Kind

  • A large brown dwarf has been identified by the scientists at European Southern Observatory’s
  • SDSS J0104+1535 has been classified as an L-type ultra-sub dwarf by studying the spectra emitted by it.
  • The spectra were measured using the European Southern Observatory’s Very Large Telescope (VLT).
  • It is named as SDSS J0104+1535, and in its ‘purest’ composition it is 90 times massive than the planet Jupiter in our solar system.
  • Based on its near-infrared and optical spectrum, it has been classified as L-type ultra-sub dwarf
  • This dwarf is located in the outermost reaches of our Milky way galaxy, almost 750 light years away.
  • Brown dwarfs are considered as the intermediates between full fledged stars and planets.
  • The mass of these bodies will be too small for producing enough gravity which is required for full nuclear fusion reaction between hydrogen atoms to form helium.
  • This reaction releases anenormous amount of energy which is usual and continuous phenomena on stars.

Sensory skin for Spacecraft Developed by NASA can Detect the Damages on the Surface of Spacecraft

  • Spacecraft will travel at very high speed in the space.
  • Even the impact off small objects will punch several layers on the spacecraft.
  • Orbital debris and Micrometeoroids pose serious threats to spacecraft during their trips to the Moon and the deep space.
  • The current methods which are used to detect the damage require either a spacewalking astronaut or a camera inspection.
  • Scientists atNASA have developed a ‘sensory skin’ that can detectsigns of damage in real time on the spacecraft.
  • This new invention can help to protect the aircraft, satellites, and even habitats on the other worlds.
  • This skin uses a series of several technologies which prints circuits on thin layers that can be embedded in the spacecraft’s structure.
  • The sensory system comprises low-voltage electric circuits printed on Kapton thermal insulation film and a unique software tracks the damage.
  • Depending on the need the spacecraft can be wrapped completely with the detection layer or a certain area of critical systems of the spacecraft can be covered.
  • This damage detector can be appliedon the lunar or Martian surface for calculating the damage from small impacts.
  • On Earth, the system can be applied to aeroplanes which help the pilots.

‘World Conference on Environment’ in New Delhi

  • Recent studies indicated that environmental factors are responsible for about 23% of all deaths and 24% of the global disease burden with respect to the healthy life years lost.
  • The importance of the environment is highly underestimated in healthy life and future.
  • Shri Pranab Mukherjee,President of India,inaugurated the ‘World Conference on Environment’
  • The conference was organised by the National Green Tribunal (NGT) in New Delhi on March 25, 2017.

Scientists found evidence of Tsunami on Mars

  • On Mars, Scientists have identified a crater which is possibly created by the impact of an asteroid.
  • Scientists estimated that the impact had triggered 150 metrehigh tsunami waves when the asteroid had plunged into an ocean.
  • They estimated that the impact might have happened three billion years ago when there were oceans on Mars.
  • The Martian tsunami might have travelled 150 km inland and might have climbed to elevations of about 100 metres.
  • The crater is 120 Km wide and is named as Lomonosov in honour of the great mathematician Mikhail V. Lomonosov.

New technology lets the humans control turtles with thought

  • Many Researchers are focusing on the development of ‘brain-computer interfaces’ (BCIs) with the recent advances in computing and electronics.
  • South Korean Scientists from Advanced Institute of Science and Technology (KAIST) have developed a new technology that can control Turtles path by using a human controller thoughts.This is a human-turtle interaction system in this system a signal originating from a human brain will affect the turtle movement.
  • The scientists have inspired from the 2009 blockbuster movie “Avatar,” in which a human remotely controls thealien
  • In the movie, they had made it possible by injecting human intelligence into a remotely located, alienbiological body.
  • This type of technologies can help in reading and use human thoughts to control the machines, such of humanoid robots.
  • This research had demonstrated the possibility of combining a device that transmits information from a computer to a brain with a BCI or a ‘computer-to-brain interface’ (CBI).
  • Further development of these type devices can help in establishing a functional link between brains of different species.

India Successfully Test Fired Barak Missile

  • Indian Navy successfully test fired Barak missile from the INS Vikramaditya March 25, 2017.
  • This is the first test conducted on short range surface-to-air Barak missile from the country’s only aircraft carrier INS Vikramaditya.
  • This test was conducted in the Arabian Sea, and the missile was fired at a live, high-speed low-flying, target.
  • The fired missile had successfully destroyed the target and got an operational readiness inspection in the Western Fleet of the Indian Navy.

INS Vikramaditya

  • After the retirement of INS Viraat of Indian Navy, INS Vikramaditya has become the only aircraft carrier in the country.
  • This is a Kiev class vessel having a length of 284 meters and 44500 tonnes
  • It has a maximum beam of 60 meters and can carry 30 aircraft.
  • It was built in 1987, and first, it had served the Soviet Navy with the name Baku, and later it was renamed as Admiral Gorshkov by the Russian navy.
  • In 2004, the Indian Navy purchased this vessel and commissioned at Severodvinsk in Russiain November 2014.
  • Under joint development with Israel, it was retrofitted with a Barak missile system.

Indian Navy gets three New Naval Systems

  • Defence Research and Development Organisation (DRDO) is the premier in defence
  • Recently DRDO developed three new naval systems directing gear for hull-mounted sonar array, USHUS-II submarine sonar and inertial navigation system for ships.
  • Arun Jaitley, Defence Minister of India, has handed over these three naval systems to the Indian Navy.
  • Jaitley also released two other products which are developed by the DRDO, viz., Gallium Nitride Technology and the IP-based secure phone.
  • The Gallium Nitride Technology will help in the development of next generation seekers, radars, and communication systems which can be used in Light Combat Aircrafts.
  • The IPbased Secure Phone is an incorporation of indigenous encryption algorithm on “trustworthy hardware ”
  • It provides a high level of security and secrecy to the voice and data, for communication of tactical and strategic plans of the Armed Forces.

Australia Land of Dinosaurs

  • Australia is nicknamed as the land of living fossils, and now it has become the land of dinosaur fossils also.
  • The world’s most diverse set of fossils of dinosaur tracks,e., 21 different types of dinosaur tracks have been discovered in Australian rocks.
  • These Australian rocksfound in “Australia’s Jurassic Park” a remote coastline of Western Australia were dated back to 127 to 140 million years.
  • Among these fossils,there were five different types of predatory dinosaur tracks with at least six types of tracks from sauropods, the long-necked herbivorous dinosaurs.
  • Four types of tracks from ornithopods, two-legged herbivorous dinosaurs, and six types of tracks from the armoured dinosaurs.

Indian Railways New Scheme Railwire Saathi to Provide Wi-Fi Services

  • Indian Railways had come up with a new initiative called “Railway Sathi” to provide internet services in 500 remote stations.
  • Under this scheme, Wi-Fi hotspot kiosks will be set up in remote locations to provide online services. The service will enable people to access various government schemes, online banking, e-commerce, open school/university and other services.
  • The scheme is an entrepreneurship model aims to train unemployed youth and women, such that they can set-up a Wi-Fi hotspot.
  • RailTel, the telecom arm of Indian Railways will provide training and implements the scheme across the country.
  • Interested people can contact Rail Tel for training; the certified people can set up hotspot kiosks and obtain loan under ‘Mudra’ scheme also.

The World Observed ‘Earth Hour’ on 25th March

  • The World Wildlife Fund for Nature (WWF) has observed the Earth Hour on 25th March 2017.
  • WWF has observed the hour for tenth consecutive year, since the initiative began in the year 2007 on March 2017.
  • Towards their commitment to the planet, people are encouraged to turn off their non-essential lights for one hour from 8:30 PM to 9:30 PMin Sydney, Australia.

Aadhaar Mandatory for Mobile Connection

  • AADHAR has been made compulsory to file income tax returns and to apply for the Permanent Account Number (PAN). Now, it is mandatory to have mobile connection. The initiative is to make Aadhaar mandatory for e-KYC ( Know Your Customer).
  • All the mobile phone service providers have been directed to re-verify their existing postpaid, prepaid customers with the Aadhaar number.
  • It would be mandatory to reveal your AADHAR number to the customer to procure SIM card.

Post Office Passport Seva Kendra likely in Nellore

  • The External Affairs Ministry has announced the opening of a Passport Seva Kendra in Nellore district. It is the Post Office Passport Seva Kendra.
  • Nellore is one of the district in Andhra Pradesh. This would be the 86thPOPSK in India. This would help people largely, as they need not travel longer distance to obtain passports and procure them.
  • The Department of Posts and The Ministry of External Affairs will be working closely for operationalization of this POPSK at Nellore.

‘Dilli Darshan’ Chopper Rides at just Rs 2,500

  • Pawan Hans, National chopper operator will soon launch “Delhi Darshan” a tin minute with a 10-minute excursion with an estimated cost of Rs. 2,499 per person.
  • In addition, a State-owned aviation company will also offer a ride of 10-minutes to the tourists with an estimated cost of Rs. 4,999. B P Sharma,Chairman and Managing Director had announced that the services would be open to the public from April 1, 2017.

DRDO Handovers Three Naval Systems to Indian Navy

  • Indian Defence Minister Arun Jaitley has passed the three naval system to Indian Navy.
  • The three systems were developed by the India’s prestigious research agency, Defense Research and Development Organization (DRDO).
  • USHUS-II submarine sonar, inertial navigation system for ship applications and directing gear for hull-mounted sonar array.

INS Vikramaditya – Navy Fires Surface to Air Missile

  • India’s aircraft INS Vikramaditya, has been launched by Indian Navy, the aircraft has been newly installed and it is the Barak short-range surface-to-air missile (SAM).
  • Vikramaditya has been commissioned into Navy, on November 2, 2013. It carries 44,500 tonne explosives to the set target.

GST Regime: CBEC Renamed as CBIC

  • After the implementation of Goods and Service Tax Regime, The Central Board of Excise and Customs (CBEC) will be renamed as Central Board of Indirect Taxes and Customs (CBIC).
  • For the formulation of new rules, Parliament gave approval for the same.
  • The Central Government has approved for the implementation of Goods and Service Tax. The reforms will be made for the CBEC.

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