Carved or chipped rock can only be directly dated by the highly inaccurate method of examining the patina.Minerals inside the rock leach to the surface from exposure to rain and sunlight.But recent discoveries have pushed the earliest inhabitants, thought to have come from Asia, to thousands of years earlier.Another theory, growing in popularity, is that North America was inhabited as much as 26,000 years ao by European's known as Solutreans.by Gary Vey for viewzone (© 2016) Scientists announced the confident dating of the oldest known petroglyphs in North America.Petroglyphs are man made carvings in stone, usually forming a picture, pattern and often telling a story. Basing their calculations on the well documented geological history of the petroglyph site in Nevada, they realized that the site was only above the surface of an adjacent lake for a narrow (geologically speaking) span of time before the current era. Carbon-14 methods require once-living material to analyze.
The message claims that the information comes from BBC News. Depending on their type, cosmic rays come from outside our solar system or from the sun. And, the Earth’s atmosphere largely protects us from cosmic rays. Tonight, from PM to AM Cosmic Rays will be entering Earth from Mars. At night, do not keep your cellular phones beside you and place it away while sleeping because this Cosmic Rays are quiet DANGEROUS From: BBC NEWS Kababalita lang a few hours ago. Do not leave your device close to your body, it can cause you terrible damage! Send this message to all the people who matter to you!In fact, this bogus message is just a revamped version of a hoax that started circulating in mid 2012: Tonight am to am cosmo rays entering earth from mars. Don’t keep your cell with you & put it away while you are sleeping because they are too much dangerous rays: NASA informs BBC NEWS. At least the new variant refers to ‘cosmic rays’ instead of ‘cosmo rays’. If you receive the hoax message, please do not share it with others.And please let the sender know that the warning is a hoax.Their name is derived from the town in New Mexico where a the collection of unique arrowheads and cutting tools were found -- intact with organic material for carbon-14 dating.The Clovis point is a remarkable tool and the "hi-tech" of the stone age.