Who first used 360 degrees?
The Babylonians gave us the 360-degree circle. That number turns out to be the smallest one whose quotient is an integer when divided by any whole number from 1 through 10 (except for 7, which may have added to seven's stature as a "magic number".
While we don't know exactly why the 360 degree convention was chosen (more on that in a minute), we do know approximately when and where it all started. At least we know that it came to be a long, long time ago—as in 4 or 5 thousand years ago with the Babylonians, the Greeks, and perhaps other even more ancient groups.
Aristarchus of Samos and Hipparchus seem to have been among the first Greek scientists to exploit Babylonian astronomical knowledge and techniques systematically. Timocharis, Aristarchus, Aristillus, Archimedes, and Hipparchus were the first Greeks known to divide the circle in 360 degrees of 60 arc minutes.
The history of the mathematical measurement of angles, possibly dates back to 1500BC in Egypt, where measurements were taken of the Sun's shadow against graduations marked on stone tables, examples of which can be seen in the Egyptian Museum in Berlin.
The Assyrians invented the world's first written language and the 360-degree circle, established Hammurabi's code of law, and are credited with many other military, artistic, and architectural achievements. For 300 years Assyrians controlled the entire Fertile Crescent, from the Persian Gulf to Egypt.
360 is also a superior highly composite number, a colossally abundant number, a refactorable number and a 5-smooth number. 360 is the smallest number divisible by every natural number from 1 to 10 except 7. One of 360's divisors is 72, which is the number of primes below it.
The Mesopotamians passed their base-60 numerical system to the ancient Egyptians, who used it to divide a circle into 360 degrees, Mary Blocksma writes in her book Reading the Numbers. The 360-degree circle worked out great: The Egyptians loved perfect triangles, and exactly six of them fit into a circle.
The Babylonian numbering system of 4000 years ago was based on 60. Their calendar had 360 days and a complete cycle (or orbit of the sun by Earth) was divided into 360 units.
“There must be no more than the equivalent of four quarters of curves (a total of 360 degrees) between the points of traction, for example, pipe bodies and boxes.” Today we are entering the 360-degree bending rule for bending pipes.
The first concept was used by Eudemus, who regarded an angle as a deviation from a straight line; the second by Carpus of Antioch, who regarded it as the interval or space between the intersecting lines; Euclid adopted the third concept.
Who discovered triangle 180 degrees?
Over 2000 years ago the Greek mathematician Euclid came up with a list of five postulates on which he thought geometry should be built. One of them, the fifth, was equivalent to a statement we are all familiar with: that the angles in a triangle add up to 180 degrees.
Who decided on these time divisions? THE DIVISION of the hour into 60 minutes and of the minute into 60 seconds comes from the Babylonians who used a sexagesimal (counting in 60s) system for mathematics and astronomy. They derived their number system from the Sumerians who were using it as early as 3500 BC.
Book 1 Postulate 4 states that all right angles are equal, which allows Euclid to use a right angle as a unit to measure other angles with. Euclid's commentator Proclus gave a proof of this postulate using the previous postulates, but it may be argued that this proof makes use of some hidden assumptions.
Etymology. The name of the Angles may have been first recorded in Latinised form, as Anglii, in the Germania of Tacitus. It is thought to derive from the name of the area they originally inhabited, the Anglia Peninsula (Angeln in modern German, Angel in Danish).
There are generally four categories of college degrees: associate degree, bachelor's degree, graduate degree, and doctorate or professional degree. Each category comes with its own particular subcategories, and there are some subtle differences between a doctorate and a professional degree.
Ancient Assyrians were inhabitants of one the world's earliest civilizations, Mesopotamia, which began to emerge around 3500 b.c. The Assyrians invented the world's first written language and the 360-degree circle, established Hammurabi's code of law, and are credited with many other military, artistic, and ...
The indigenous Assyrian homeland areas are "part of today's northern Iraq, southeastern Turkey, northwestern Iran and northeastern Syria". The Assyrian communities that are still left in the Assyrian homeland are in Syria (400,000), Iraq (300,000), Iran (20,000), and Turkey (15,000–25,100).
The Assyrians were perhaps most famous for their fearsome army. They were a warrior society where fighting was a part of life. It was how they survived. They were known throughout the land as cruel and ruthless warriors.
A circle has 360 degrees, so a 180 degree change (being half of 360 degrees) means you're now headed in the exact opposite direction. If you made a 360 degree change you would be heading in the exact same direction as when you started.
A complete circle is 360 degrees. So, if you want to describe someone who has "come full circle," you might say he has made a 360-degree turn. A half circle, meanwhile, is 180 degrees. This is the phrase one might use to describe a complete change from one extreme to another.
What is the most special number?
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The first calculation of π was done by Archimedes of Syracuse (287–212 BC), one of the greatest mathematicians of the ancient world.
Kaoru Ishikawa – the Father of Quality Circles.
The first theorems relating to circles are attributed to Thales around 650 BC.
Angles Greater Than 360°
420 ∘ is a full rotation of 360 degrees, plus an additional 60 degrees.