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Dating wikipedia

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Radiometric dating often called radioactive dating is a way to find out how old something is. The method compares the amount of a naturally occurring radioactive isotope and its decay products, in samples. The method uses known decay rates. It is used to date many kinds of natural and man-made materials. Fossils may be dated by taking samples of rocks from above and below the fossil's original position. Radiometric dating is also used to date archaeological materials, including ancient artifacts.
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Urban Dictionary: Dating

In popular music marketing , a single is a record release with only one or two songs. The first song usually the one given the most promotion , and heard more often in the media is called an A-side , while any other song on the single is called a B-side. The pairing of recordings on a single comes from the days of shellac and vinyl records , when discs had two playable sides. Modern compact disc singles may contain more than one version of either the A- or B-side, or sometimes an additional recording by the same performer. B-sides may be selections from an album , or songs not otherwise issued for sale. Many times the chance to get a new song issued as an A-side creates competition between members of bands, or teams of songwriters.
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Facebook Dating

Dating is how people get to know each other and determine if someone is a suitable partner for them. There are many different types and styles of dating. Online dating is where people meet and get to know each other over the Internet instead of in person.
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Uranium-lead is one of the oldest [1] and most refined of the radiometric dating schemes. It can be used over an age range of about 1 million years to over 4. Precision is in the 0. The method relies on two separate decay chains , the uranium series from U to Pb, with a half-life of 4.
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