博客 - The UK National Measurement Laboratory at LGC turned 30 years old this year, and to celebrate we’ve been looking back at notable accomplishments, and looking at where we are now. Clinical measurement is one field where our scientists have excelled and innovated throughout our time.
博客 - Today is Mole Day, chemists’ #1 holiday! Mole Day occurs every year on October 23 from 6:02am to 6:02pm to commemorate Avogadro’s Number and the basic measuring unit of chemistry, the mole.
博客 - Perhaps unsurprisingly, the candela was originally based on the light of a candle – but a definition based on something so variable was not good enough for measurement scientists. The candela, or ‘the new candle’, replaced candle-based definitions in 1948. In 1979 the modern definition of the candela was adopted: