You have a very Vivid imagination…Now imagine…TV and brainwashing will do that to people…
Just because its fictional, doesn't mean it's not real-Alexandria Ocasio-Cortez
We don't have to prove nothing to you…IDIOT…Maybe try and read some history before 1950…DUMMY…Stop being so FKing gullible …KEK
Earth's circumference is the distance around the Earth; around the poles it measures almost exactly 40,000 kilometres or 21,600 nautical miles due to the circumference being used to define those units of measurement.
Measurement of Earth's circumference has been important to navigation since ancient times. The first known scientific measurement and calculation was first calculated by Eratosthenes, which he did by comparing altitudes of the mid-day sun at two places a known north–south distance apart. [1] In the Middle Ages, al-Biruni developed a way to perform the calculation from a single location and made a measurement at Nandana in present-day Pakistan
In modern times, Earth's circumference has been used to define fundamental units of measurement of length: the nautical mile in the seventeenth century and the metre in the eighteenth. Earth's polar circumference is very near to 21,600 nautical miles because the nautical mile was intended to express 1/60th of a degree of latitude (i.e. 60 × 360), which is 21,600 partitions of the polar circumference. The polar circumference is even closer to 40,000 kilometres because the metre was originally defined to be one 10-millionth of the circumferential distance from pole to equator. The physical length of each unit of measure has remained close to what it was determined to be at the time, but the precision of measuring the circumference has improved since then.
https://wikimili.com/en/Earth's_circumference
Fking Idiot I said READ some history ..OK..OK before the year 1000..AD…Just how STUPID are you kek…Study spherical trig …Now GO away ..you DumbFK ..KEK (sorry)
How the ancient Greeks proved Earth was round over 2,000 years ago
In the mid-20th century, we began launching satellites into space that would help us determine the exact circumference of the Earth: 40,030 km. But over 2000 years earlier, a man in Ancient Greece came up with nearly the exact same figure using just a stick and his brain. Following is a transcript of the video.
How an ancient Greek mathematician calculated the Earth's circumference. In the mid-20th century, we began launching satellites into space that would help us determine the exact circumference of the Earth, 40,030 km.
But over 2,000 years earlier in ancient Greece, a man arrived at nearly that exact same figure by putting a stick in the ground. That man was Eratosthenes. A Greek mathematician and the head of the library at Alexandria.
Eratosthenes had heard that in Syene, a city south of Alexandria, no vertical shadows were cast at noon on the summer solstice. The sun was directly overhead. He wondered if this were also true in Alexandria.
https://www.independent.co.uk/life-style/history/ancient-greeks-proved-earth-round-eratosthenes-alexandria-syene-summer-solstice-a8131376.html
Yeah and so FKing nut case told you it was flat and your ignorant/gullible enough to believe it…Ever Tried sailing the 7 seas before Satellites and NSA existed…or you to FKing stupid do know what they are..KEK…READ A Book…DUMMY…Here I'll help ya get started …Now Go Away..had enough of you stupidly …KEK
Which Waters Do You Pass Through When You “Sail the Seven Seas”?
Pirates and their sailing ships are inexorably linked to the romantic concept of the seven seas, and some variation of the phrase “sailing the seven seas” has existed since ancient mariners plied the Mediterranean Sea and the waters of the Middle East. But which bodies of water are those seven?
https://www.britannica.com/story/which-waters-do-you-pass-through-when-you-sail-the-seven-seas
You're really stretching it ..you just want to believe LIES……grasping at straws …KEK
>If you believe the Earth is a Ball, EXPLAIN THIS FUCKING VIDEO
Pure Bullshit as you FEers say is all CGI kek
You are also a FKing idiot….Spherical Trigonometry has been around a hell of a lot longer then NASA..Just how dumb are you people KEK(sorry again) kek
Presents mathematics and history of spherical trigonometry.
Since most of the figures are not uploaded I recommend to see this presentation on my website at http://www.solohermelin.com.at Math folder.
Please send comments and suggestions for improvements to solo.hermelin@gmail.com. Thanks.
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1 Spherical Trigonometry SOLO HERMELIN Updated 12.11.12http://www.solohermelin.com
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2 SOLO TABLE OF CONTENT Spherical Trigonometry History Sine and Cosine Laws in Spherical Triangles Half Angles Formulas Delambre-Gauss Equations Napier’s Equations References Applications: Flight on Earth Great Circles
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3 SOLO History Spherical triangles were studied by early Greek mathematicians such as Menelaus of Alexandria, who wrote a book on spherical triangles called “Sphaerica “ and developed Menelaus' Theorem. E. S. Kennedy, however, points out that while it was possible in ancient mathematics to compute the magnitudes of a spherical figure, in principle, by use of the table of chords and Menelaus' theorem, the application of the theorem to spherical problems was very difficult in practice Further advances were made in the Islamic world. In order to observe holy days of the Islamic calendar for which timings were determined by phases of the moon, astronomers initially used Menalaus' method to calculate the place of the moon and stars, though this method proved to be clumsy and difficult. It involved setting up two intersecting right triangles; by applying Menelaus' theorem it was possible to solve one of the six sides, but only if the other five sides were known. To tell the time from the sun's altitude, for instance, repeated applications of Menelaus' theorem were required. For medieval Islamic astronomers, there was an obvious challenge to find a simpler trigonometric method. Spherical Trigonometry
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4 SOLO History (continue - 1) In the early 9th century, the Persian mathematician Muhammad
https://www.slideshare.net/solohermelin/spherical-trigonometry-39662731
Go back to YouTube…Dummy ..because those LYing FKers never lie for view counts ..KEK..Damn you're stupid kek