How do scientists determine the age of fossils that have been under the surface of the earth for thousands of years? Scientific American Editor Michael Moyer explains the process of radiocarbon dating.
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The Geoffrey Beene Foundation Alzheimer’s Initiative (GBFAI) is launching the 2013 Geoffrey Beene Global NeuroDiscovery Challenge whose
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Add CommentThere was no sound available on this for me - tried a couple of browsers (chrome, IE). A possible problem??
Reply | Report Abuse | Link to thisThank you so much!! This is great and will be easy to reference and remember. It's easy for us sciency types, and even easier for non-sciency folks, and will help me, as a Guide/Instructor in Yellowstone National Park, have more credibility when talking age of 'stuff'.
Reply | Report Abuse | Link to thisHello Mark. Sorry you're having trouble - we test in many different browsers and we're not able to recreate this problem. For best results, please make sure your browser is set to accept cookies and is Javascript enabled. For further assistance, please email us at webmaster @ sciam.com
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