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.
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CNN’s Jake Tapper Breaks News of Paramount Buying Network’s Parent Company WBD Live on Air: "It Affects Everybody I’m Looking at Right Now in the Studio"
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