Welcome to the show! Today, we’re exploring a topic that’s literally beneath our feet: the size of the Earth. How do scientists measure something so vast? From clever indirect methods to creative thinking, we’ll uncover the fascinating ways they’ve tackled this challenge. Did you know the Earth’s circumference is about 40,000 kilometers? Join us as we dive into the ingenious techniques that have helped us understand our planet’s size, even before airplanes took to the skies. Get ready for a journey of curiosity and discovery!

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