The old barges, once used to transport building materials, coal and food from the Port of London, have spent more than 30 years moored in Essex.
Future smoke alarms might use very different tech. Researchers have developed an AI-based system that uses machine learning to detect fire in video feeds. The tool can spot fire and smoke in footage from "any camera", says Prabodh Panindre at New York University – including CCTV, doorbell cameras and phone cameras.
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