The poisoning of a Russian spy has ignited a fascination with lethal toxins. You may know about arsenic and cyanide, but these are tame compared with the world’s most lethal substances…
It barks. It plays with toy bones. And, most crucially, it remembers who you are. Meet Aibo, Sony’s revamped robotic dog. Why is the company relaunching a product it killed off a decade ago?
Saving the environment
How can humans save the environment? A report has warned that “time is running out” to fix Earth’s climate crisis, and states that action from governments and citizens is “urgently” needed.