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Inside the science of ghost hunting gear

From EMF meters to thermal cameras, ghost hunting has gone high-tech—but not all tools deliver what TV shows suggest. While devices can detect temperature shifts, electromagnetic fields, or faint ...

Japanese scientists have created a device capable of converting sweat into electricity, and the idea seems so outlandish that it is hard not to want to find out how it works

Scientists in Japan have created a revolutionary wearable device powered by human sweat. This innovative technology uses ...