Friday, October 29, 2010

Free Download Frontline Magazine October 23 - November 05 2010

Friends here is the current issue of   Frontline Magazine October 23 - November 05  2010 available for free download  , the contents of this issue are,

    * ASSEMBLY ELECTIONS: Bihar : Battle of slogans
    * KERALA: Local body elections
    * WEST BENGAL : Beating back the Maoists
    * AYODHYA: Debate on verdict
    * Interview: Anupam Gupta
    * THE JUDICIARY: Sting operation is legal
    * EDUCATION: Tamil Nadu: School fee imbroglio
    * INFORMATION TECHNOLOGY: Free software option
    * ENVIRONMENT: Ladakh: Feeling the heat
    * AWARDS: Jnanpith for O.N.V. Kurup, poet of the masses
    * Shahryar’s award: Boost to Urdu
    * CINEMA: Ritwik Ghatak’s classic
    * ART: Sculptures by Sumedh Rajendran
    * COMMONWEALTH GAMES: Theatre of joy
    * NOBEL PRIZE: Peace Prize for Chinese dissident Liu Xiaobao
    * UNITED STATES: Waning dream
    * NORTH KOREA : Son to succeed
    * INTERVIEW: Lisa Taraki, Palestinian sociologist
    * Technology deficit
   Free Download Frontline Magazine October 23 - November 05  2010

Wednesday, October 20, 2010

Indian Interferometric Gravitational-wave Observatory (IndIGO)

Indian Interferometric Gravitational-wave Observatory (IndIGO)

Indian initiative in gravitational wave observatory consortium recently announced the project to construct Optical gravitational wave detector in the first stage to build a prototype of the detector which is 3m long and  building of prototype led by Unnikrishnan and Rajalakshmi of  Tata Institute of Fundamental Research who had funded Rs. 2 crore for this project.

What is Gravitational Wave

Gravitational waves are actually faint ripples in fabrication of space and time and are emitted by binary stars, black holes and neutron stars etc.. 

In 1916, Einstein predicted that, when two stars circle around each other as a result of mutual gravitational attraction the stars swing around each other pulled by enormous forces would emit gravitational wave.

Later Russell Hussle and Joseph Taylor had proved the presence of gravitational wave through their experiment and won noble prize for the same in 1993. 

Gravitational waves makes changes in the length of the objects in their path but only by a small part (like one part in 10 to the power 21)  which is extremely small. Gravitational waves are difficult to detect because of their weakness and their frequencies are extremely low, below 1 Hertz therefore it is vulnerable to seismic noise.

Optical gravitational wave detector proposed by IndIGO will be having a ' L ' shaped detector having two 4 km long arms with reflecting mirrors suspended in high vacuum without any disturbances at the both the end of the arms. A laser beam is directed towards a beam splitter which splits the beam into two arms then the beam passes through the vacuumated arms and gets reflected by mirror then return towards the beam splitter if the there is influence of  gravitational wave then the returned wave will be detected by the photo detector and the intensity will be measured will be the measurement of gravitational wave.

Benefits of Gravitational wave detector

  1. It is an astronomical tool For better understanding of cosmos.
  2. Enable us to observe cosmic and astrophysical phenomena occuring in universe and also provide a direct proof for existence of black holes.
  3. To know the Limits of deformation of spinning neutron stars.
  4. Useful in the Observation of universe in first few milliseconds.

Monday, October 18, 2010

Syllabus and Pattern for Civil Services Aptitude Test 2011 (civil services preliminary exam)

Ministry of Personnel released the Syllabus and Pattern for Civil Services Aptitude Test 2011 (civil services preliminary exam) today here are the details for the two papers 

     (Paper 1) (200 marks) - Duration : Two hrs.

·       Current events  of national and international importance
·       History of India  and Indian national movement
·       Indian and World Geography- physical, social, economic geography of India and the world
·       Indian Polity and governance – constitution, political system, panchayati raj, public policy,   Rights issues, etc.
·        Economic and social development – sustainable development, poverty, inclusion, demographics, social sector initiatives etc.
·     General issues on environmental ecology, bio-diversity and climate change-that  donot require subject specialization
·      General science. 

(Paper II) (200 marks) – Duration : Two hrs

     ·         Comprehension
·         Interpersonal skills including communication skills
·         Logical reasoning and analytical ability
·         Decision making and problem solving
·         General mental ability
·         Basic numeracy (numbers and their relations, orders of magnitude etc. (Class X level), Data interpretation (charts, graphs, tables, data sufficiency etc. –Class X level)
·         English language comprehension skills (Class X level)

Saturday, October 16, 2010

Pratiyogita Darpan November 2010 Issue (Read online)

 Pratiyogita Darpan November 2010 Issue is available to Read online here. some of the articles in this issue are women empowerment , green banking , india china relations , personality development etc..