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You probably have a few smoke detectors throughout your house, but did you know that many designs of smoke detectors are radioactive? Well in this video we explore how smoke detectors work, and how they use the radioactive isotope Americium-241 to detect smoke. We'll also explore how Geiger counters work, and then how atoms of high atomic numbers are counterintuitively small. Smoke detectors are perfectly safe, and save lives. So make sure that they work on a regular basis.
Table of Contents:
00:00 - Introduction to Smoke Detectors.
00:42 - Components inside a Smoke Detector.
02:26 - How does a radioactive isotope detect smoke?
07:24 - What are the types of radiation?
08:42 - Why is Americium radioactive?
10:05 - How is Americium produced.
11:00 - Other types of smoke detectors.
12:00 - Notes on Smoke Detectors.
13:03 - PCBWay Sponsorship.
14:30 - The Counterintuitive size of atoms.
17:08 - How do Geiger Counters Work?
