In this episode of the Physics World Weekly podcast we celebrate the 100th anniversary of Measurement Science and Technology, which is the world’s first scientific instrumentation and measurement journal. I am joined by the journal’s editor-in-chief Andrew Yacoot to chat about a century of metrology and look forward to the future of the discipline.

Yacoot is principal scientist at the UK’s National Physical Laboratory, where he leads the lab’s dimensional nanotechnology programme. He also talks about his research efforts and about recent changes to the definitions of SI units.

We are running this podcast this week because Saturday 20th May is World Metrology Day, marking the 148^th anniversary of the Metre Convention, which began the international standardization of the metre and the kilogram.