Wikipedia.org said: An example is the calculation of the rotational kinetic energy of the Earth. As the Earth has a period of about 23.93 hours, it has an angular velocity of 7.29Ã10â5 rad/s.
Photo Credit Hemera Technologies/AbleStock.com/Getty Images. Himalayan salt is mined from the Khewra Salt Mines in Pakistan, situated at the foothills of the Himalayas. It is the second-largest salt mine in the world, and official records of the Khewra mine date back to the 13th century. The salt obtained from Khewra includes transparent, white, pink, red and dark red salts.
India has the largest reserves of barites in the world. Total value of mineral production of Indian Mining Industry is Rs. 568070 million in 2000-2001. The metallic production constitutes the iron-ore, chromite, copper-ore, zinc concentrates, manganese ore, gold, bauxite, lead concentrates.