measurement

Can quantum mechanics help a UK council plan when to collect bins?

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Josie Ford The order of not things Cambridge – of Cambridgeshire, not Massachusetts, before anyone jumps in – is famed as the academic home of Ludwig Wittgenstein, Bertrand Russell and G. E. Moore, three philosophers who did much to elucidate, not to say obfuscate, language, logic and meaning. It is very much in their spirit, … Read more

Physicists Just Achieved a New Smallest Measurement of a Ghost Particle’s Mass

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Decaying isotopes of hydrogen have just given us the smallest measurement yet of the mass of a neutrino. By measuring the energy distribution of electrons released during the beta decay of tritium, physicists have determined that the upper limit for the mass of the electron antineutrino is just 0.8 electronvolts. That’s 1.6 × 10–36 kilograms … Read more