24 April 2019
If a car moving at 100 kilometres per hour hits a concrete wall, all of its kinetic energy must be turned into other forms of energy. What are those forms, and can anyone describe the overall energy distribution an instant after the car hits the wall?
24 April 2019
Are the bright lights that cyclists now use safe for the eyes of onlookers? (continued)
24 April 2019
Almost every pest organism, from weeds to rats, seems able to develop resistance to chemicals used to kill them. Yet honeybees seem unable to resist the chemicals said to be contributing to their decline. Why?
24 April 2019
Plus doubts about the height of Everest, a robotic intruder prompts a 911 call, and questionable diets of the rich and famous
24 April 2019
A dazzling exhibition in Lisbon celebrates the most complex of human organs with art that makes the brain sing – as well as revealing how chimps can outsmart us
24 April 2019
See medieval depictions of spirits and the cosmos, explore the human condition through equations, and catch fan-funded film Iron Sky: The Coming Race
24 April 2019
To be a successful YouTuber, you need to let viewers into your life. But this creates fake intimacies that can lead to tragic consequences for stars and fans alike
24 April 2019
Even tiny tweaks to data can confuse AI algorithms, potentially arming cyber attackers with a way to undermine everything from image recognition to driverless cars
24 April 2019
There could finally be a way to make vital agricultural fertiliser without releasing huge amounts of greenhouse gases – but will it work on an industrial scale?
24 April 2019
Longevity research is no longer aimed at prolonging lives, it is trying to keep us fit right until the end. New anti-ageing drugs may finally be here to make that happen
