【摘 要】
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QUANTIZATION OF BASIC UNITS OF METROLOGYrnNSR:What is metrology?rnLi:I would like to give an example first.In 2012,Nature News re-ported the experimental result
【机 构】
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Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences
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QUANTIZATION OF BASIC UNITS OF METROLOGYrnNSR:What is metrology?rnLi:I would like to give an example first.In 2012,Nature News re-ported the experimental results of a neutrino superluminal prop-agation.A bunch of neutrinos propagated from the European Nuclear Center in Switzerland to the Gran Sassoo National Lab-oratory in Italy 60 ns faster than the light in 730-km distance.But,a month later,it was found that the unusual experimental re-sults were caused by a time measurement error.This shows that measurement plays a very important role in scientific research.The measurement must be ensured so that the measured values at different locations,different times,and measured by different methods are accurate and consistent.If not it will subvert the en-tire foundation of physics.
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