When Michael Lenke set out to battle inequality between men and women, he didn't travel far. He walked down a flight of stairs to his hobby cellar in Metten, Bavaria, in southern Germany, took an aquarium pump and a plastic hose and got to work. The inequality Lenke wanted to fix wasn't about money or leadership. It was about the female orgasm.
What is Carbon Dating? - Chemistry for Kids | Mocomi
Dating techniques are procedures used by scientists to determine the age of rocks, fossils, or artifacts. Relative dating methods tell only if one sample is older or younger than another; absolute dating methods provide an approximate date in years. The latter have generally been available only since Many absolute dating techniques take advantage of radioactive decay , whereby a radioactive form of an element decays into a non-radioactive product at a regular rate. Others, such as amino acid racimization and cation-ratio dating, are based on chemical changes in the organic or inorganic composition of a sample. In recent years, a few of these methods have come under close scrutiny as scientists strive to develop the most accurate dating techniques possible.
Is Carbon Dating Accurate?
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There are endless famous and not so famous inventions worthy of curiosity and wonder. Of course, the lists below are by no means complete, but do provide a 'greatest hits' list of inventions, both past and present, that have captured the imaginations and propelled us forward. Around , the first glue patent was issued in Britain for a glue made from fish. Scotch Tape or cellophane tape was invented in by banjo playing 3M engineer Richard Drew.