Share this on WhatsApp Every time I log onto Facebook, I brace myself. My newsfeed—like everyone else’s I know—is filled with friends, relatives and acquaintances arguing about COVID-19, masks and Trump. Facebook has become a battleground among partisan “echo chambers.” But what is it about social media that makes people so polarized? To find out, […]
Share this on WhatsApp If a hummingbird has ever visited your garden, you’ve no doubt seen it flit from flower to flower, hovering mid-air, as it sips on nectar. That activity requires plenty of energy. So hummingbirds need a LOT of nectar to feed their hungry metabolisms. “In fact some of them probably drink two […]
Share this on WhatsApp A survey of more than 4,000 researchers in the United States suggests that better coordination at an institutional and national level could make hundreds of thousands more tests for coronavirus available. The survey was prompted by a Nature investigation published on 9 April, revealing that several top university laboratories that have received regulatory approval to […]