Instead, coffee companies such as illycaffe and Hausbrandt, a rival based in Treviso near Venice, have developed electronic detection systems.

ECONOMIST: Espresso coffee

After re-analysing the plates, Dr Jain and Dr Singh concluded that they may have found axions that exist so fleetingly that they are not noticed by the modern electronic methods of particle detection that have replaced the use of photographic plates.

ECONOMIST: A possible particle of dark matter