Tattoos provide unusual snapshots, frozen in time, of a person’s life. Children, immortalized on a bicep tattoo, grow up. Quotations once considered profound may lose meaning after years resting on someone’s ribcage. And QR codes linking to YouTube footage of a favorite sports team kicking ass may suddenly stop working after several hours. At least,
What once seemed like the moonshot vision of tech billionaires and idealistic architects could soon become a concrete solution to several of the world’s most pressing challenges. At a United Nations roundtable on Wednesday, a group of builders, engineers, and architects debuted a concept for an affordable floating city. Unlike instances in the past
For something that’s supposed to help save the planet, solar geoengineering sure has a lot of enemies. Critics warn that artificially reflecting sunlight to cool the planet could unleash drastic, unintended consequences – but a Harvard-led team of scientists insists that such fears are overblown. In a new study, researchers say spraying chemicals into
My ideas about animal behaviour were turned upside down in 2002 when I watched Betty, a New Caledonian crow, fashion a hook from a piece of wire and use it to pull a small container with meat from a tube. Betty’s behaviour captivated scientists because it seemed so creative: there was no obvious solution
Feeding a global population of 10 billion – the overwhelming number we’re predicted to hit by 2050 – will be extremely difficult, but scientists say it is not impossible. A radical new diet has the potential to improve public health, save countless lives, and protect our planet for future generations, according to a huge group of researchers.