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.
Jade; Origin and Gemstone Sources Back to Top. Nephrite is more common than jadeite and deposits have been found in New Zealand, Australia, Brazil, China, Canada, Zimbabwe, Russia, Taiwan, Alaska and Poland. The main source of jadeite is Myanmar (Burma), which is also the only source of imperial jadeite. Jadeite is also found in Japan, Canada, Guatemala, Kazakhstan, Russia, Turkey, Cuba and the USA. Buying Jade and Determining Jade Gemstone Value Back to Top.