There are two main types of smoke alarm tech, says Raman Chagger, principal consultant at BRE, the Building Research Establishment. Ionisation-based systems use a tiny amount of radioactive material to charge, or ionise, particles in the air which flow between two small plates. Should smoke interrupt that flow of charged particles, the alarm goes off.
What was your day job or primary occupation when you started your side hustle?
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The accords include so-called safety zones to be established around operations and assets that countries build on the Moon.
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Artificial intelligence
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