- #1
prabhjyot
- 10
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question:how many miles around the world via the Poles ?
is it circumference of he earth..?
is it circumference of he earth..?
The circumference of Earth was first calculated by the ancient Greek mathematician Eratosthenes around 240 BC. He measured the angle of the shadow cast by a vertical pole in two different cities on the same day, and used the difference in angles to calculate the Earth's circumference.
No, the measurement of 40,075 miles is an approximation. The actual circumference of the Earth varies slightly depending on the location and topography.
The measurement of the Earth's circumference has become more accurate over time as technology and methods of measurement have improved. Today, the most accurate measurement of the Earth's circumference is 40,075.017 km, which is equivalent to 24,901.461 miles.
The circumference of Earth is most commonly expressed in kilometers or miles. In scientific measurements, it is also sometimes expressed in meters or feet.
Knowing the circumference of Earth is important for a variety of reasons. It allows us to accurately navigate and map the Earth's surface, understand its shape and size, and calculate distances and travel times. It also helps us gain a better understanding of our planet's place in the solar system and beyond.