Carbon-14 Dating - What Do We Know?
http://edu-observatory.org/olli/CosmicRays/Week3.html or index.html
Lewis and Clark Expedition, also known as the Corps of Discovery Expedition https://en.wikipedia.org/wiki/Lewis_and_Clark_Expedition https://upload.wikimedia.org/wikipedia/commons/c/c0/Carte_Lewis_and_Clark_Expedition.png LCT.png Schultz Saddle and "The Fort" Prehistoric Schultz_Saddle2.png o45113g7-fort.gif Why does carbon dating detect when things were alive? How are the atoms in living things any different from the atoms in dead things? http://www.askamathematician.com/2013/12/q-why-does-carbon-dating-detect-when-things-were-alive-how-are-the-atoms-in-living-things-any-different-from-the-atoms-in-dead-things/ Carbon-14 Dating https://www.nde-ed.org/EducationResources/CommunityCollege/Radiography/Physics/carbondating.htm Wikipedea | Carbon-14 https://en.wikipedia.org/wiki/Carbon-14 The primary natural source of carbon-14 on Earth is cosmic ray action on nitrogen in the atmosphere, and it is therefore a cosmogenic nuclide. However, open-air nuclear testing between 1955-1980 contributed to this pool. The Cosmic Story of Carbon-14 http://scienceblogs.com/startswithabang/2012/06/04/the-cosmic-story-of-carbon-14/ firstname.lastname@example.org