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How To Find Radius Of Earth From A Telescope?

What is the most accurate way to determine the radius of the Earth?

  • Calculate the circumference of the earth to use as a reference for calculating the radius of the earth. This may be accomplished by using Eratosthenes as an example and calculating the distance and angle between two points. Considering that the distance between the two sites may be represented by an arc measurement of the 360-degree circle,

How do you find the radius of the earth?

6 371 /: What is the formula for calculating the radius of the earth? In what way may a stopwatch be used to calculate the Earth’s circumference? Using a stopwatch, determine the radius of the Earth.

  1. Position yourself so that you are facing the eastern horizon. Start the stopwatch as soon as you notice the upper limb of the Sun (or Moon) rising above the horizon. Lie down as soon as possible. Continue to keep an eye on the horizon to the east. The stopwatch should be turned off as soon as the Sun (or Moon) emerges again

Is the radius of the earth the same everywhere?

Complete response: No, the radius of the earth varies depending on where you are on the planet. The radius of the Earth at the poles (polar radius) is 3,950 miles/6,356 kilometers, and the radius of the Earth at the equator is 3,963 miles/6,378 kilometers.

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What is the radius of Earth Class 7?

The earth has a radius of 6371 kilometers.

How was the radius of the Earth first measured?

Eratosthenes built a pole at Alexandria and noted that it produced a shadow on the summer solstice, proving that the Sun was not exactly above but rather slightly south. Eratosthenes was able to calculate the circumference of the earth because he was aware of the curvature of the Earth and was aware of the distance between the two towns.

How do you convert radius to length?

Divide the center angle in radians by two and apply the sine function to the resulting angle. Step 1: Multiply the result of step 1 by two to get the chord length. The radius is determined by this computation. The arc length is calculated by multiplying the radius by the central angle.

How do you find radius from area?

The radius may be calculated by dividing the area by pi and then taking the square root of the result.

How many km2 is the earth?

It has been proposed by experts that the true barrier between Earth and space may be anywhere from 18.5 miles (30 kilometers) above the surface and more than a million miles (1.6 million kilometers) distant.

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