The National Institute of Advanced Industrial Science and Technology, or AIST, showed Japan's metre and kilogram prototypes to the press on Monday, ahead of the 150th anniversary later this month of the conclusion of the Metre Convention in 1875.

Last Sunday’s Kilorun Bangkok 2019 – the first-ever running festival centred on “food, fun, friends and family” – draw more than 1,500 participants signing up for the kilometre (KM) and kilogram (KG) categories.