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www.tnpsc.academy – TNPSC Current affairs feb. 20, 2017 (20/02/2017)
Topic : Geography – Geographical Evidence
Why Earth’s inner core doesn’t melt
Scientists have discovered why the crystallised iron core of the Earth remains solid, despite being hotter than the surface of the Sun.
Why earth’s core doesn’t melt?
Scientists found that on the edge of the inner core, pieces of crystals’ structure continuously melt and diffuse only to be reinserted due to high pressure like “shuffling deck of cards”.
This energy distribution cycle keeps the crystal stable and the core solid.
The core is likely composed of 96% pure iron, with the remaining four percent made up of nickel and some light elements.
However, at extremely high pressure, the crystalline structures transform into 12-point hexagonal forms, or a close packed (HCP) phase.
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Topic : History – Latest Diary of Events
Mexican caves – Unearthen bizarre microbes
Biologists have unearthed bizarre microbes trapped in crystals that survived on minerals under extremely punishing conditions in Mexican caves.
Scientists believe life trapped in crystals could be 50,000 years old.
The bizarre and ancient microbes were found dormant in caves in Naica and Mexico.
These were able to exist by living on minerals such as iron and manganese.
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Topic : History – Profile of States, General Administration
Kashmir : Year of Apple
To promote Kashmiri apples in domestic and foreign markets, 2017 is celebrated as the “Year of Apple” has been announced by the J&K Chief Minister Mehbooba Mufti.
As part of this programme, the Chief Minister launched the High Density Apple Plantation Scheme in Srinagar.
Jammu and Kashmir is the largest apple producing State in India at 11.2 metric tonnes, which accounts for 71% of national production, according to official figures.
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Topic : History – Latest Diary of Events
India’s only volcano active again
India’s only live volcano in the Andaman and Nicobar Islands has started ejecting smoke and lava again.
After lying inactive for 150 years, Barren Island volcano started in 1991 and has been showing unpredictable activity since then.
The Andaman basin is an active back-arc spreading basin known for strong seismicity, submarine volcanoes and hydrothermal activity.
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Topic : History – Latest Diary of Events
Archives of Confucius’ descendant
Over 2,000 copies of archived records of Chinese philosopher Confucius’s direct descendants will be published over the next four years, for the purpose of protection.
The archives, in more than 9,000 volumes spanning 2,000 years, contain content covering politics, economics, culture and thought.
About Yanshenggong:
“Yanshenggong”, the eldest child of all direct descendants of Confucius.
The Yanshenggong was a hereditary official who coordinated commemoration ceremonies for Confucius and managed the family’s internal affairs.
About Confucius:
Confucius (551-479 BC), an educator and philosopher, influenced generations of Chinese society.
He was the first Chinese person to set up private schools that enrolled students from all walks of life.
Confucius is reported to have Six lakh descendants in China.
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Topic : History – India’s Defence, Army and Navy
Coast Guard ship Ayush
20th and the last in the series of 20 Fast Patrol Vessels, Indian Coast Guard Ship ICGS AYUSH was commissioned at Kochi.
The ship is capable of undertaking various tasks such as surveillance, interdiction, search and rescue, anti-smuggling and medical evacuation.
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Topic : History – Profile of States, General Administration
Khajuraho Dance Festival begins – MP
The world famous Khajuraho Dance Festival has begun in Madhya Pradesh, which presents colourful and brilliant Indian dances.
Live performances of classical dances like Kathak, Kuchipudi, Odissi, Bharatnatyam, and Mohiniyattam will be presented during this programme.
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Topic : History – Latest Diary of Events
Former CJI Altamas Kabir died
39th Chief Justice of India, Justice Altamas Kabir has passed away.
He served from September 29, 2012 to July 18, 2013.
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