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Nitrogen atoms in the upper atmosphere are struck by cosmic radiation and create C14 atoms.
These atoms rapidly decay into radiocarbon-dioxide and along with ordinary CO2 are absorbed by living plants.
However, there is still a lot to learn from the document itself.
It is challenging to image a world without zero, but many cultures, especially European found it difficult to adopt this new concept.
Firstly, Dr Libby assumed that C14 decays at a constant rate.
However, experimental evidence indicates that C14 decay is slowing down and that millennia ago it decayed much faster than is observed today.
Radiocarbon or C14 dating employs complex systems of measuring the unstable isotopes in once living matter.It measures the radioactive decay of carbon-14, which is found in all organic material.It is the most common and reliable absolute dating technique.It are these exercises where the zeros, which are used as place holders and found as solid dots, are located .It is a shame that there is no context recorded of the site where the manuscript was discovered and perhaps more artifacts are waiting to be found. media2.intoday.in/indiatoday/images/stories/zero-xl_091517122744 The University of Oxford Radiocarbon Accelerator Unit.
An Indian text commonly referred to as The Bakhshali Manuscript is documented as the oldest record of the concept of zero and it was believed to be originally from the 9th century.