A laser beam tracks the motions of the tiny magnet suspended in a vacuum chamber as it wobbles in response to magnetic fields.Credit: Wei Ji, Peking University Scientists have turned a levitating magnet into a device for measuring magnetic fields, known as a magnetometer — one that is sensitive enough to detect the faint signals
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A paramedic moves a person to an ambulance in Spain during a 2022 heatwave that killed more than 300 people in five days. Credit: Angel Garcia/Bloomberg/Getty Extreme heat is killing hundreds of thousands of people every year — and the annual toll is growing. An estimated 210,000 more people died of heat-related causes each year
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Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time. Do you really
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Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time. A team of
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Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time. A small natural
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