science and facts#1

1. chipko movement

The chipko movement was a non-violent agitation in 1973 that was aimed at protection and conservation of trees. The name of the movement 'chipko' comes from the word 'embrace' as the villagers hugged the trees and encircled them to prevent them from being cut.The movement originated in the Chamoli district of UP.The protest of Chipko movement achieved a major victory in1980 with a 15 year ban on cutting trees in the himalayan forests.

2.Jim Corbett National Park was the first to be established in 1936 in Uttarkhand India.

* There are 15 biosphere reserves in india.

* The Nilgiris is a biosphere reserves in tamilnadu.

3.Rathika ramasamy,a native of venkatachalapuram village,Theni district in tamil nadu was the first Indian women to strike an international reputation as wildlife photographer.Her passion is towards bird photography.A photobook on wildlife titled “The best of wildlife moments" was published in November 2014.

4.India is the third largest consumer of crude oil in the world, after the US and China.

5.A capacity of 100 litre solar heater can save upto 1500 units of electricity per year.

6.The world largest and tallest wind turbine is situated in Hawaii.

One wind turbine can produce electricity for 300 homes.

7.HDL (High density Lipoprotein) or good cholesterol lowers risk of heart disease while LDL (low Density Lipoprotein) or bad cholesterol increase risk of heart disease.

8.The nuclear bomb that was dropped in Hiroshima during World War II was called as Little boy. It was a gun-type bomb which used a uranium core. The bomb, which was subsequently dropped over Nagasaki was called as 'Fat man'. It was an explosion type homb, which used a plutonium cote:

9.Nuclear fusion is the combination of two lighter nuclei. The charge of both nuclei is positive. According to electrostatic theory, when they come closer they tend to repel each other. This repulsive force will be overcome by the kinetic energy of the nuclei at higher temperature of the order of 10² to 10° K.

10.Uranium, named after the planet Uranus, was discovered by Martin Klaproth, a German chemist in a mineral called pitchblende.