Current Affairs 2013

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Delhi CM Arvind Kejriwal announces free water

Screenshot_3Delhi Chief Minister Arvind Kejriwal delivered on the AAP’s promise of its poll manifesto by announcing 20 kilo litres of free water a month to all metered households. The decision was questioned by Congress, saying every citizen of Delhi must be provided 700 litres of free water per day.

However, there is a condition that those consuming above this limit will have to pay as per tariff, increased by 10%, effective Jan 1, 2014. The promise of 700 litres of free water to every Delhi household was made in the AAP poll manifesto. The cost of providing the free water would be borne by the Delhi Jal Board (DJB) for the first three months. Though AAP were to provide for 700 litres of water per day to every household but the DJB in its final calculations arrived at the figure of 667 litres per day or 20 kilo litres a month to be provided to those households with regular connections.

In another step, the AAP government, which had promised to go over the problems of auto-rickshaw drivers, new Transport Minister Saurabh Bharadwaj decided to issue 5,500 inter-state permits for them to commute within the National Capital Region.

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Tamil Nadu government launches free CFL scheme

In a bid to promote power saving, Tamil Nadu government began the first phase of distributing free Compact Fluorescent Light (CFL) bulbs to over 14 lakh hut-dwellers in the state. The scheme is aimed at saving 40 mw of electricity.

The government will implement the scheme in phases. The first phase costing Rs 8.77 crore will cover 7 lakh domestic consumers. The Chief Minister also unveiled various sub-stations in the capacity of 230 kv, 110 kv and 33 kv, build in different parts of the state at an overall expense of Rs 509.88 crore.

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Scientists discovered Phosphorous in remnants of Supernova

Astronomers have, for the first time, discovered phosphorous — one of the vital elements for life — in the cosmic remains from a supernova explosion.

It has been found that phosphorus is 100 times more abundant in the leftovers of a supernova than elsewhere in the galaxy, affirming the hypothesis that massive exploding stars are the churning factories of the element.
While researches have calculated the abundance of essential life elements like carbon, nitrogen, oxygen and sulphur in supernovae remains, supernova remnant Cassiopeia A disclosed the first measurement of the relatively scarce phosphorus. The new observations of the object were made with a spectrograph positioned on a 5-meter telescope at Palomar Observatory at the California Institute of Technology.

What are Supernovae and Supernova remnant?

A supernova is a celestial event which happens when massive stars exhaust their nuclear fuel and explode in a spectacular fashion. Being extremely luminous, they briefly outshine an entire galaxy, before fading from view over several days.

During a short period of some weeks or months, a supernova can radiate as much energy as the Sun is expected to emit over its entire life span. Once it fades away, what remains is an expanding shell of gas and dust called a supernova remnant.

What is the scientific thought on the formation of essential life elements?

As per astronomers, these elements are formed in the stars and are dissipated throughout our galaxy when the star explodes, and they become part of other stars, planets and ultimately, humans.
Scientists are of the view that when a star with mass several times the mass of the Sun runs out of the hydrogen that it combusts to produce energy, the core of the star goes through a sequence of collapses, synthesising heavier elements with each collapse.

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