What are the standards by which we use to measure length, weight, mass etc? 

The National Physics Laborarty (NPL) is the UK’s National Measurement Institute, a world-leading scientific centre developing and applying the most accurate measurement standards, science and technology available. These standards underpin the National Measurement System infrastructure throughout the UK and the world to ensures accuracy and consistency of measurement. 

We worked with NPL to create a Travelling interactive exhibition around the seven SI base units, used at a number of events and festivals to tell the story of measurement and its impact.