Microchips with a memristor could replace an entire metrology electrical resistance calibration laboratory

https://www.eurekalert.org/news-releases/1104349

"avoids extreme temperatures/ very high magnetic fields... most measures use values linked to constants of nature; not so for physical quantities such as mass/ electrical units whose metrological traceability so complex that feasible only at national metrology institutes... overcome using memristor switching providing stable resistance values linked to constants of nature... silver nanofilaments are adjustable with atomic precision applying electrical bias, so conductance changes not continuously but in discrete quantum steps"