There’s a worrying problem with the ‘Higgs field’ — the energy field that gives particles their mass. It seems to be dangerously close to having an inherent instability. In the absence of particles, t

Record changing temperatures and discover thermal expansion with this home-built apparatus

EASY You Will Need • Quilling papers: 10 mmstrips in Pink (3), Lightpurple (7), Sky blue (9),Light green (22), Lightyellow (38) and Apricot(52) (our selectionavailable fromtillyviktor.com) • Your choi

Three things to make and do

10 things you can shoot and create this month, from BMXs and badgers to train sets and lakes at dawn

Two poles are all you need to nail your collected and extended paces, says dressage trainer and judge Jess Carr. That and a loud voice! Helen Milbank watches four exercises have a powerful effect on stride length, adjustability, and a horse’s rideability