In the 1960s, smoke from a cigarette interrupted a static-control experiment, and it wasn’t just a nuisance: It helped create the home smoke detector

A puff of cigarette smoke sparked a home safety revolution. Inventor Duane Pearsall observed how smoke interfered with his electrical experiments. This observation led him to develop the smoke detector. His innovation transformed a laboratory principle into a vital household device. Pearsall's insight made smoke detection practical and reliable for everyone.

Raccontata daeconomictimes.indiatimes.com