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What Hellenistic scientist was able to calculate the circumference of the earth within 200 miles?
Wiki User
∙ 10y ago
Eratosthenes is said to have calculated the Earth's circumference to such a high accuracy. The major problem with these claims is that he estimated the circumference in terms of stadia. There were several different versions of the stadion and nobody knows the modern equivalent of the stadion used for his result! If the stadion is taken to be a Hellenic standard, of 185 metres, then the claim is true.
Wiki User
∙ 10y ago
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When was the the circumference of the Earth first measured and by who?
One possible person is Eratosthenes of Cyrene ~230 BC as he was a Greek scientist who calculated the circumference of the Earth, with remarkable accuracy (some values for the "stadia" he used gives a result within 6% of the actual polar circumference). See link for further information
What's the formula for circumference of a circle?
Circumference of a circle is denoted as C in geometry. The formula to calculate circumference is: C=2πr where: π = 22/7 r = radius Note, radius is half of diameter (the line that touches two sides within circle and passes through the center of the circle)
How did Archimedes calculate pi?
He calculated the perimeters of regular polygons inscribed within a unit circle and circumscribing the circle (outside the circle). The first is always less than the circumference of the circle ( = 2*pi) and the second is always more. As you increase the number of sides of the polygons, the polygons get closer and closer to the circle and their perimeters get nearer to the circumference.
Why pi 3.14 prove that?
I'm not sure of the proof. Wikipedia has an extensive article on pi, it's history and calculation methods. Pi is the ratio of a circle's circumference to its diameter. It is an irrational number, so it cannot be represented exactly as a decimal or a fraction, but only carried out to a decimal approximation. The decimal 3.14 is a pretty good approximation to the true value. If you take a circle with a diameter of 100 yards (the length of a football field), then calculate the circumference using the approximation of 3.14, you will be off from the actual length of the circumference by about 5 3/4 inches. Using another popular approximation [22/7] will get you within 4 9/16 inch of the actual circumference. Using the popular approximation of 3.1416 will arrive at a calculation which is within 1/32 inch of the actual circumference.
Which line is a chord?
It is a straight line within a circle that touches two points of the circumference and the largest chord is the circle's diameter.
When was the the circumference of the Earth first measured and by who?
One possible person is Eratosthenes of Cyrene ~230 BC as he was a Greek scientist who calculated the circumference of the Earth, with remarkable accuracy (some values for the "stadia" he used gives a result within 6% of the actual polar circumference). See link for further information
Name the scientist who gave the circumference of the earth first time?
Eratosthenes of Cyrene. He did it by measuring the size of shadows at different locations on the planet and was right to within a few percent.
Who is considered responsible for the Hellenistic era?
Alexander the Great's generals, after his early death at age 33, divided up his empire, establishing their own kingdoms and spreading Greek culture within them. We today call these the Hellenistic Kingdoms (Hellenistic = like Hellenism)
What's the formula for circumference of a circle?
Circumference of a circle is denoted as C in geometry. The formula to calculate circumference is: C=2πr where: π = 22/7 r = radius Note, radius is half of diameter (the line that touches two sides within circle and passes through the center of the circle)
How did Archimedes calculate pi?
He calculated the perimeters of regular polygons inscribed within a unit circle and circumscribing the circle (outside the circle). The first is always less than the circumference of the circle ( = 2*pi) and the second is always more. As you increase the number of sides of the polygons, the polygons get closer and closer to the circle and their perimeters get nearer to the circumference.
What scientist studies all aspects of society and the interpersonal relationships of the people within that society?
social scientist
What scientist studies all aspects of society and the interpersonal relationships of the people within the society?
social scientist
Which geometrical figure encloses the greatest area within the shortest circumference?
A circle.
Why is the perimeter of a circle called the circumference?
The word circumference comes from the Latin word circumferre which has two words within it: circum"around" and ferre "to carry or bear".
What natural preservatives have scientist discovered fossils within?
AMBER
Circumference of universe within the radius of one newton?
What?!! Radius cannot be measured in Newtons!
Why is pi an important number?
It is used in geometry to calculate (among other things) circumference and area within circles and other curved figures, and the volume of spheres, spheroids, and cylinders. It provides the length of a curved line when it cannot be directly measured, or is generated by an angle.
