How we use the electromagnetic spectrum

What happens when a beam of energy 100 times the power of the global electricity grid is concentrated onto a pinpoint?

It’s one of the most basic concepts in physics, governing the behaviour of everything from subatomic particles to galaxies

It’s hard enough getting Wi-Fi to work reliably in a two-bedroom flat, let alone a field containing thousands of smartphone-wielding festival-goers or a train belting through the British countryside.

These devices use a radioactive element to help sniff out smoke and alert you to a potential fire

WF writer Eve Boggenpoel draws on her background in holistic health, yoga and meditation to bring you her pick of the best ways to feel healthier, happier and more yourself each month

Simon Hampton-Matthews asks if radar reflectors are still the best way to be seen on the water…