Technology & innovation

This archive covers technology and innovation breakthroughs that improve lives, protect the environment, and expand human possibility. From medical devices to clean energy tools, the stories here focus on what’s working and who’s making it happen.

Bull roarers, for article on bullroarer invention

Humans invent the bullroarer, perhaps in modern-day Ukraine

The bullroarer, a thin slat of wood spun on a cord, may be the oldest known human-made sound instrument, with finds in present-day Ukraine dating to roughly 18,000 B.C.E. Cultures separated by oceans — Aboriginal Australian, Māori, Dogon, Ancient Greek, Amazonian — independently arrived at the same device, a quiet clue that certain human impulses run remarkably deep.