childbed fever clinicians unclean hands tools decline

Unclean hands often spread childbirth fever

Childbed fever was a major cause of maternal death. Clinicians often spread it with unclean hands and tools. The disease’s decline followed the acceptance of germ theory and, later, the discovery of antibiotics.

Children learn most new words without anyone formally teaching them

Children acquire vocabulary far faster than adults could teach every word individually. They use context, familiar sentence patterns, gestures and repeated encounters to infer what unfamiliar words mean. Direct instruction helps, but much language learning happens during ordinary conversation and observation. Children are constantly solving small puzzles about meaning.

Centaurs may become comets or leave the Solar System

Centaurs are icy objects that were probably pushed inward from the outer Solar System by the giant planets. Over time, they are expected either to become comets or to be thrown out of the Solar System.

Like this? There’s a whole feed of it. Replace empty scrolling with things worth knowing.

Download Hence for free

childbed fever clinicians unclean hands tools decline

Unclean hands often spread childbirth fever

Keep exploring