Share this on WhatsApp Any mask worn for day-to-day protection against COVID-19 is going to be imperfect, at least for now. Supplies of N95 respirators—the most effective mask type—should find their way to those in daily close contact with infected people. This requirement leaves the rest of us reusable cloth face coverings and single-use paper […]
Share this on WhatsApp Scientists exploring a marine trench near Japan were astonished to find a fish in one of the deepest parts of the ocean, at 8,336 meters (about five miles) below the surface. The tadpole-shaped, translucent creature is a type of snailfish, and it’s probably the deepest fish anyone will ever find. “They […]
Share this on WhatsApp In 2017 researchers from several universities used advanced laser-based technology to peer inside ice cores pulled from high in the Alps. They found the Black Death. The ice-core record showed that during the past 2,000 years, the annual levels of lead in the atmosphere took a sudden dip only once. That […]