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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It’s not the most exciting year for Samsung’s smaller flagship phones. While the S26 Ultra can boast a new Privacy Display that’s the first of its kind, the rest of the S26 family have a little too much in common with their predecessors. The new video features seem useful and intuitive, so there’s more to explore there. We’ll have more to say in our full reviews soon.