Sunday, June 28, 2009

Animals tortured

In Orissa thousands of Oliver Ridley turtles are cught up in the nets of trawlers doing illiegal fishing and suffocated to death.In Rajasthan,Gujrat and Madhya pradesh,spinal tailed lizards are sold in markets as medicine.Frogs are thrown back after their legs are chopped off.Hundreds of birds and animals are mindlessly killed during the animal tribal hunt.Cruelty of animals in spite of a lot of hue and cry about wildlife protection is on increase.More than 50,000 chemicals used in the manufacture of cosmetics are tested on animals like rabbits,pigs,rats,monkeys.About 10 million animals are killed during experimentation.Only the people can save the animals from the needless pain and death.It is the time when we have to save these animals.Animals and wildlife are a preciuos gift by god.Let's love and conserve them.

Thursday, June 25, 2009

History of Diamonds

Diamond as we know is the hardest substance in this world.It is used in making jwelleries and many more things.It has also its history.The word diamond is derived from greek.But was first found in India 6000 years ago near the rivers Pennar,Krishna,Godavari.Diamonds have been treasured as gemstones in India for its religion icons.Diamond has a windgap of 225 nm meaning that pure diamond should transmit visible light and look like a clearless crystal.Diamonds can be identified by their high thermal conductivity.The formation of natural diamond requires exposure of carbon bearing materials at the temperature of 900-1300 C.This condition can be found only at two places.In lithospheric mantle and meteriote strike.Diamonds are very shiny and have took place in our everyday life.