Ann Makosinski invented a battery-free flashlight powered by body heat, earning global recognition for her sustainable design. #history #innovation #science #sustainable | Life Unfolded
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Ann Makosinski invented a battery-free flashlight powered by body heat, earning global recognition for her sustainable design. #history #innovation #science #sustainable | Life
Life Unfolded. . Ann Makosinski invented a battery-free flashlight powered by body heat, earning global recognition for her sustainable design. #history #innovation #science #sustainable
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Exposure07 on Instagram: "In 2013, Ann Makosinski, a Canadian student from British Columbia, won the Google Science Fair in the 15–16 age category for inventing a battery-free flashlight powered by thermoelectric energy—the conversion of body heat into electricity. Her invention, called the "Hollow Flashlight", was inspired by a friend in the Philippines who struggled to study due to lack of reliable electricity. Ann designed a flashlight using Peltier tiles, which generate electricity when ther
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