By Andrew Prescott, King's College London

“Analog” and “digital” are the two polar opposites of our modern world.

The word “analog” has become our catch-all term for what we see as slow, one-way and limited in functional possibilities; while “digital” is our synonym for the dynamic, interactive and fluid.

Analog is old; digital new. Paper has always been the epitome of the analogue: a physical medium which can receive, present and preserve information but otherwise remains static and fixed.

By Louise D'Arcens, University of Wollongong and Clare Monagle, Monash University

By Mick Reed, University of New England

The Jack the Ripper murders are the most potent cold case ever. More than a century on from the first killing in 1888 they are still attracting global attention.

By Zongbo Shi, University of Birmingham

Researchers have long known that man-made climate change will harm yields of important crops, possibly causing problems for the world’s food security. But new research shows air pollution doesn’t just harm crops indirectly through climate change; it seems to harm them directly.

By Joanna Cohen, Queen Mary University of London