## physics

2018 is the centenary of a mathematical result that changed the character of physics.

Atomic clocks are the best time keepers, but need to be kept incredibly cold. Paradoxically, the cooling is achieved by shining light on them.

Resonant electromagnetic waves, created by lightning flashes, circle the Earth. Wim Hordijk explores the maths and shows how you can keep track with these phenomena.

This year's Nobel Prize in Physics has gone to Rainer Weiss, Barry Barish and Kip Thorne for their role in the detection of gravitational waves.

A quick introduction to one of the greatest discoveries of the century.

A quick introduction to the monsters that lurk at the centre of each galaxy.

Simone Biles stunned audiences at the 2016 Olympics with a move that appeared to defy gravity. Did it really? Two sports scientists explain the physics of the *Biles*.

This year's Nobel Prize for Physics brings together the physics of materials with one of our favourite areas of maths – *topology*. In this final article in a series, we asked Fiona Burnell to explain the maths behind the work, and how it may help lead to quicker and smaller electronics, and even the elusive quantum computer.

This year's Nobel Prize for Physics brings together the physics of materials with one of our favourite areas of maths – *topology*. This is the second in a series of articles where we asked Fiona Burnell to explain the maths behind the work, and how it may help lead to quicker and smaller electronics, and even the elusive quantum computer.