Daily : November 7, 2017

India test fires Nirbhya Missile

India test fires ‘Nirbhay’ missile

Question: India conducted a flight test of its indigenously designed and developed long range sub-sonic cruise missile ‘Nirbhay’ on November 7th. This missile is capable to carry warheads of up to-
(a) 300 kg
(b) 500kg
(c) 1000kg
(d) 1200kg
Answer: (a)
Related Facts:

  • On November 7th, 2017, India conducted a flight test of its indigenously designed and developed long range sub-sonic cruise missile ‘Nirbhay’.
  • The flight test was done from the launch complex-3 of the Integrated Test Range (ITR) at Chandipur along the Odisha coast.
  • It can carry a warhead of 200 kg to 300 kg at a speed of 0.6 to 0.7 Mach.
  • The missile has an operational range of 1000 km.
  • ‘Nirbhay’ missile is guided by a highly advanced inertial navigation system indigenously developed by the Research Centre Imarat (RCI), the DRDO.
  • This two-stage missile is 6 metre long, 0.52 metre wide with a wing span of 2.7 metre.
  • Powered by a solid rocket motor booster developed by the Advanced Systems Laboratory (ASL) and can travel with a turbofan or turbojet engine.
  • It is noteworthy that this was the fifth experimental test of the homegrown missile system.
  • The maiden test flight of ‘Nirbhay’ held on March 12, 2013 had to be terminated midway for safety reasons due to malfunction of a component.
  • However, its second launch on October 17, 2014 was successful.
  • In the next trial conducted on October 16, 2015, the missile deviated from its path after covering 128 km.

Reference:
http://www.ptinews.com/news/9214379_India-test-fires–Nirbhay–missile.html
http://www.business-standard.com/article/news-ians/nirbhay-missile-test-fired-off-odisha-coast-117110700604_1.html

Measurement of first phase resolved X

Measurement of first phase resolved X-ray polarisation of Crab pulsar

Question: On November 6th, 2017, AstroSat has successfully accomplished the extremely difficult task of measuring X-ray polarisation. What is AstroSat?
(a) Navigation satellite
(b) Multi-wavelength space telescope
(c) Satellite launching vehicle
(d) Short wavelength space telescope
Answer: (b)
Related Facts:

  • On November 6th, 2017, extraordinary results of measuring X-ray polarisation have been reported in a paper published in the journal Nature Astronomy.
  • CZT Imager of AstroSat has successfully accomplished the extremely difficult task of measuring X-ray polarisation.
  • AstroSat is India’s multi-wavelength space telescope.
  • This landmark measurement puts up a strong challenge to prevailing theories of high energy X-ray emission from pulsars.
  • X-ray polarisation measurement is so difficult, that so far the only reliable measurement obtained worldwide is for the pulsar in the Crab Nebula observed in 1054 AD.
  • The team in their eighteen-month study of the Crab pulsar in the Taurus Constellation found the variations of polarisation as this highly magnetised object spins around 30 times every second.
  • Indian scientists using data from the CZT Imager instrument of the AstroSat satellite have performed the most sensitive measurement of X-ray polarisation of the Crab pulsar, the rotating neutron star which is the main energy source of the nebula.
    What is CZT Imager?
  • The CZT Imager (CZTI) consists of 16384 tiny pixels, essentially independent detectors, to measure X-rays coming from the celestial objects.
  • The instrument derives its name from the detectors that make up its heart, made of a semiconductor called “Cadmium Zinc Telluride”.
  • Another important feature of our measurements is the study of polarization properties at different rotation phases of the pulsar, which has not been done so far.
  • CZT-Imager is built by a consortium of Institutes across India.
  • The Tata Institute of Fundamental Research, Mumbai, led the effort with instrument design and development.
  • Vikram Sarabhai Space Centre, Thiruvananthapuram provided the electronic design, assembly and testing.
  • In addition to these ISRO, The Inter University Centre for Astronomy and Astrophysics (IUCAA), Space Application Centre (SAC), Physical Research Laboratory (PRL) Ahmedabad etc. have played a pivotal role in the project.
  • For the first time the idea of using pixelated CZT detectors for X-ray polarization measurement was tested on ground before launch and then employed in space.

Reference:
https://www.isro.gov.in/update/06-nov-2017/czt-imager-of-astrosat-measures-first-phase-resolved-x-ray-polarisation-of-crab
http://pib.nic.in/newsite/PrintRelease.aspx?relid=173283

MoU by TSSC to drive skill development in the country

MoU by TSSC to drive skill development in the country

Question: With which of the following Pvt. Ltd, Telecom Sector Skill Council (TSSC) has entered into a Memorandum of Understanding (MoU) for complementing the skills imparted by the vocational system and providing better livelihood opportunities?
(a)Reliance communication
(b) ITC Ltd
(c) Udacity India Pvt. Ltd.
(d)Wipro
Answer: (c)
Related Facts:

  • On November 7th, 2017, Telecom Sector Skill Council (TSSC) has entered into a Memorandum of Understanding (MoU) with Udacity India Pvt. Ltd. in New Delhi.
  • This MoU is for complementing the skills imparted by the vocational system and providing better livelihood opportunities.
  • MoU aims to drive skill development for youth in India.
  • The MoU was signed by TSSC CEO, Lt. Gen. SP Kochhar and VP – International, Udacity, Clarissa Shen.
  • It is noteworthy that Udacity is a pioneer in online educational organization founded by Sebastian Thrun, David Stavens, and Mike Sokolsky offering massive open online courses (MOOCs).
  • Through this MoU Students will get access to Udacity Nanodegrees which feature cutting-edge curriculum built by Silicon Valley leaders and taught by expert instructors.
  • After enrolling into these Nanodegree programs they will have access to one-on-one coaching, moderated forums, and project reviews ensuring a personalized experience.

Reference:
https://www.aninews.in/news/business/business/tssc-signs-mou-with-udacity-india-pvt-ltd-to-drive-skill-development-in-the-country201711071324090002/

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