The Guardian view on Trump’s war on science: Europe should pick up talent fleeing the US | Editorial

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"Spaceflight is an incredible privilege," he said, "and sometimes it reminds us just how human we are."

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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.。safew官方下载对此有专业解读