Al-Biruni’s Method to Determine the Radius of the Earth
In the 11th century, Al-Biruni successfully determined the radius of the Earth. He accomplished that by measuring the dip of the horizon from the top of a hill. From the measurements, he was able to calculate the radius of the Earth. In the 21st century, we can easily repeat the same experiment with practically no … Continue reading Al-Biruni’s Method to Determine the Radius of the Earth
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