Tnpsc current affairs jan 28, 2017

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www.tnpsc.academy – Tnpsc current affairs jan in English – Jan. 28, 2017 (28/01/2017)

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Topic : Science – Science and Technology

GSLV’s cryogenic upper stage tested

The Indian Space Research Organisation has successfully conducted the stage level test of GSLV MK III’s cryogenic upper stage C-25 in Mahendragiri, Tamil Nadu.

The cryogenic upper stage of the GSLV is the large C-25, the most difficult component of the launch vehicle to be developed.

It will be powered by the indigenously developed CE-20 engine.

Background:

Cryogenics is the study of substances at very low temperature – at minus 150 degrees Celsius and less, in which gases like oxygen, hydrogen and nitrogen turn liquid.

Cryogenic engines are called so because they use liquid oxygen and liquid hydrogen as fuel.

The extremely cold temperatures make these liquids tricky to operate.

Key facts:

The GSLV-III or Geosynchronous Satellite Launch Vehicle Mark III, is a launch vehicle developed by the Indian Space Research Organization.

It would also enhance the capability of the country to be a competitive player in the multimillion dollar commercial launch market.

The vehicle envisages multi-mission launch capability for GTO, LEO, Polar and intermediate circular orbits.

Topic : History – Latest Diary of Events

TROPEX 17

The Indian Navy’s Annual Theatre Readiness Operational Exercise (TROPEX) has begun in the Western Seaboard.

The exercise will have ships and aircraft of both the Western and Eastern Naval Commands, as also assets from the Indian Air Force, Indian Army and the Indian Coast Guard exercising together.

It will also strengthen inter-operability and joint operations in a complex environment.

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Topic : Science – Science and Technology

Triangle head like Bug Preserved in Amber discovered

US Researchers discovered insect preserved in amber that is believed to have been existed 100 million years ago and is entirely different from the existing groups.

The unusual creature with its own specific order is a small and wingless insect having E.T.-like (alien) features, due to its strange eyes.

It has a triangular head, with the vertex of the right triangle located at the base of the neck. It is believed that the species have the ability to see almost 180 degrees by turning its head sideways.

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