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.
63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54
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Ministers will take another step towards banning social media for under-16s next week as they launch a consultation on the policy, with government insiders increasingly certain Keir Starmer will back the idea.
Where's the Trump phone? We're going to keep talking about it every week. We've reached out, as usual, to ask about the Trump phone's whereabouts, and have stopped getting a response. This week, thanks to a reader tip, we think we've found the original phone the T1 is based on.