Smoke Detector Functionality: The Hidden Nuclear Science Keeping Us Safe

Have you ever wondered how a smoke detector senses danger in seconds? The secret lies in a tiny spark of nuclear science. Inside most detectors is a minute amount of Americium-241, a safely sealed radioactive material that emits alpha particles to detect even the faintest traces of smoke. This remarkable use of physics turns a small nuclear process into a life-saving technology, quietly protecting millions of homes every day.

👉 Click the link below to read the full Newsletter–3 (September 2025) and explore how nuclear physics serves humanity in everyday life.

NEWSletter_SMOKE_DETECTOR.pdf

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“Nuclear science serves humanity in countless silent ways. It is our responsibility as scientists to share its truth, power, and promise with society.”

— B. P. Singh, The Atomic Explorer