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Stonehenge builders used Pythagoras' theorem 2,000 years before Greek philosopher was born, experts
https://www.telegraph.co.uk/ ^ | 6/20/18 | Sarah Knapton

Posted on 06/20/2018 2:55:37 PM PDT by BBell

Stonehenge builders used Pythagoras' theorem 2,000 years before Greek philosopher was born, say experts

The builders of Britain’s ancient stone circles like Stonehenge were using Pythagoras' theorem 2,000 years before the Greek philosopher was born, experts have claimed.

A new book, Megalith, has re-examined the ancient geometry of Neolithic monuments and concluded they were constructed by sophisticated astronomers who understood lengthy lunar, solar and eclipse cycles and built huge stone calendars using complex geometry

One contributor, megalithic expert Robin Heath has even proposed that there exists a great Pythagorean triangle in the British landscape linking Stonehenge, the site from which the Preseli bluestones were cut in Wales, and Lundy Island, an important prehistoric site.

Pythagoras’ discovery that the sum of the areas of two squares on the sides of two triangle will add up to the area of a square on hypotenuse has been used been used for millennia to help builders attain perfect right-angles.

The new book, published today to coincide with today’s summer solstice, shows how within one of Stonehenge’s earliest incarnations, dating from 2750BC, there lies a rectangle of four Sarsen stones which when split in half diagonally forms a perfect Pythagorean 5:12:13 triangle.

The eight lines which radiate from the rectangle and triangles also perfectly align to important dates in the Neolithic calendar, such as the summer and winter solstices and spring and autumn equinoxes.

They also mark Imbolc, the ancient date for the beginning of Spring on February 1, Beltane, or May Day, lammas, the start of the wheat harvest and Samhain, October 31 which traditionally marked the time when cattle were brought down from summer pastures and slaughtered for the winter which has become Halloween.

Contributor and editor John Matineau, said: “People often think of our ancestors as rough cavemen but they were also sophisticated astronomers.

(Excerpt) Read more at telegraph.co.uk ...


TOPICS: History; Science
KEYWORDS: greekphilosopher; pythagoras; pythagorastheorem; stonehenge
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1 posted on 06/20/2018 2:55:37 PM PDT by BBell
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To: BBell

There’s nothing new under the sun.


2 posted on 06/20/2018 3:00:01 PM PDT by jacknhoo (Luke 12:51; Think ye, that I am come to give peace on earth? I tell you, no; but separation.)
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To: BBell

Pie are squared? No. Pie are round.


3 posted on 06/20/2018 3:09:51 PM PDT by KingLudd
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To: BBell

You don’t have to know Pythagorean geometry to make a perfect square or rectangle.

You just have to be able to measure.


4 posted on 06/20/2018 3:12:21 PM PDT by SolidRedState (I used to think bizarro world was a fiction.)
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To: SolidRedState

Put a post in the ground.
Tie one end of a length of rope to that post.
Stretch the rope out to its full length.

Walk in perfect circle.


5 posted on 06/20/2018 3:18:35 PM PDT by Grimmy (equivocation is but the first step along the road to capitulation)
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To: BBell
They also had cars.


6 posted on 06/20/2018 3:24:21 PM PDT by MUDDOG
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To: BBell

So Pythagoras really was WAY WAY “ahead of his time...”


7 posted on 06/20/2018 3:25:03 PM PDT by NFHale (The Second Amendment - By Any Means Necessary.)
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To: Grimmy

I’m confused...


8 posted on 06/20/2018 3:25:23 PM PDT by EEGator
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To: BBell

Hillary Clinton already proved that something can be named before its namesake is known.

/s


9 posted on 06/20/2018 3:28:34 PM PDT by nickedknack
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To: SolidRedState

Exactly. They simply observed and measured.


10 posted on 06/20/2018 3:31:44 PM PDT by DesertRhino (Dog is man's best friend, and moslems hate dogs. Add that up. ....)
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To: SunkenCiv

ping


11 posted on 06/20/2018 3:32:05 PM PDT by aposiopetic
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To: BBell

In before the Spinal Tap reference.


12 posted on 06/20/2018 3:33:33 PM PDT by dfwgator (Endut! Hoch Hech!)
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To: BBell

“Sum of the areas of two squares on the sides of two triangle will add up to the area of a square on hypotenuse”

I am not familiar with the “area” of the two sides and the “area” of the hypotenuse. Would that depend on how thick of a lead was in a pencil you used? The thicker the line, the greater the area?

Amazing....


13 posted on 06/20/2018 3:35:24 PM PDT by DesertRhino (Dog is man's best friend, and moslems hate dogs. Add that up. ....)
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To: dfwgator

Nigel was confused


14 posted on 06/20/2018 3:40:32 PM PDT by Finatic (Sometimes I think it would be nice to just get it on and get it over with. Once and for all.)
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To: DesertRhino

Most carpenters know this as 3/4/5 rule.
3×3=9
4×4=16
9+16=25=5×5


15 posted on 06/20/2018 3:41:10 PM PDT by Lurkina.n.Learnin (Wisdom and education are different things. Don't confuse them.)
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To: BBell

yeah yeah....

Maybe its just that human brains are wired for certain proportions (as to whats pretty or acceptable) and that its a genetically based preference for “normality” in mates (Socio-Biology 101) A similar study would probably find that such ‘ratios’ are found in what humans consider as ‘beauty’.


16 posted on 06/20/2018 3:45:26 PM PDT by elbook
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To: BBell

Talk about a clumsy definition?

Pythagoras’ discovery that the sum of the areas of two squares on the sides of two triangle will add up to the area of a square on hypotenuseiscovery that the sum of the areas of two squares on the sides of two triangle will add up to the area of a square on hypotenuse...”

My tenth grade teacher:

Pythagoras’ theorem states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.


17 posted on 06/20/2018 3:55:43 PM PDT by odawg
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To: Lurkina.n.Learnin

Oh, I get the math of the Pythagorean theorem. But the writer was referring to the length of each side as the AREA of that side.

That theorem has nothing to do with calculating the areas of the sides. It really doesn’t.


18 posted on 06/20/2018 4:03:13 PM PDT by DesertRhino (Dog is man's best friend, and moslems hate dogs. Add that up. ....)
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To: SolidRedState

Both diagonals need to be equal. Use a rope to measure. If one diagonal is longer than the other, rotate the side until they are equal. Then you are square.


19 posted on 06/20/2018 4:03:42 PM PDT by fhayek
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To: odawg

Wait... maybe this a common core math!


20 posted on 06/20/2018 4:04:31 PM PDT by DesertRhino (Dog is man's best friend, and moslems hate dogs. Add that up. ....)
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