The principle behind obsidian hydration dating is simple—the longer the artifact surface has been exposed, the thicker the hydration band will be.
Mechanical cleaning is the most controllable method without introduction of chemical impurities into the artifact.
[....] The discovery was published in Science, a scientific journal, on Friday [09/02/11]. That is the same species as the superstar fossil dubbed Lucy, an adult female discovered nearby in 1974.
[....]" [Based on: Article (Scientists unearth evidence that Ice Age giants originated in Tibet) cn 2011-09-04 - Editor: Wang Guanqun] NASA's Curiosity rover has  uncovered signs of an ancient freshwater lake on Mars, which scientists say could have been a perfect spot for tiny primitive organisms to flourish if they ever existed on the red planet. P.] The watering hole near the Martian equator existed about 3.5 billion years ago around the time when life evolved on Earth. [NP] The skeleton, described in the British scientific journal Nature and National Geographic magazine, represents the first juvenile remains of these ancient humanlike creatures, making the fossil the oldest child by far ever found. From the waste down, the skeleton looks like a human's. Her brain was small, her nose flat like a chimpanzee's and her face long and projecting.
Research into Sri Yukteswar’s explanation is being conducted by the Binary Research Institute.
[....] In The Holy Science, Sri Yukteswar concludes that we are currently in the beginning stages of Dwapara Yuga, which began around 1699 A. This now puts us in the year 308 Dwapara according to Sri Yukteswar.