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The 17 equations that changed the world
World Economic Forum ^ | 4 Apr, 2016 | Andy Kiersz

Posted on 06/29/2016 8:33:17 PM PDT by MtnClimber

In 2012, Mathematician Ian Stewart came out with an excellent and deeply researched book titled "In Pursuit of the Unknown: 17 Equations That Changed the World."

His book takes a look at the most pivotal equations of all time, and puts them in a human, rather than technical context.

"Equations definitely can be dull, and they can seem complicated, but that’s because they are often presented in a dull and complicated way," Stewart told Business Insider. "I have an advantage over school math teachers: I'm not trying to show you how to do the sums yourself." ...

Stewart continued that "equations are a vital part of our culture. The stories behind them — the people who discovered or invented them and the periods in which they lived — are fascinating."

Here are 17 equations that have changed the world:

The Pythagorean Theorem

Image: Business Insider What does it mean? The square of the hypotenuse of a right triangle is equal to the sum of the squares of its legs.

History: Though attributed to Pythagoras, it is not certain that he was the first person to prove it. The first clear proof came from Euclid, and it is possible the concept was known 1,000 years before Pythoragas by the Babylonians.

Importance: The equation is at the core of much of geometry, links it with algebra, and is the foundation of trigonometry. Without it, accurate surveying, mapmaking, and navigation would be impossible.

In terms of pure math, the Pythagorean Theorem defines normal, Euclidean plane geometry. For example, a right triangle drawn on the surface of a sphere like the Earth doesn't necessarily satisfy the theorem.

Modern use: Triangulation is used to this day to pinpoint relative location for GPS navigation.

(Excerpt) Read more at weforum.org ...


TOPICS: Education; Science
KEYWORDS: mathematics; stringtheory
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To: Larry Lucido; theoilpainter

Both brilliant!


41 posted on 06/29/2016 10:29:54 PM PDT by Attention Surplus Disorder (I apologize for not apologizing.)
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To: FredZarguna

Agreed,

Your equations represent fundamental basic equations that must be mastered on the way to the author’s final list.

As basic elements, they are part of the foundation, and far more important, but not as extreme.


42 posted on 06/29/2016 10:30:20 PM PDT by KC_for_Freedom (California engineer (ret) and ex-teacher (ret) now part time Professor (what do you know?))
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To: MtnClimber

Excellent essay. Excellent comments. The fundamental mathematics of Rene Descartes (1596-1650) was used by the North American Aviation engineers in Downey, CA in the 1960’s to make the seventeen Apollo missions. Very impressive.

Pythagoras said, ‘If I have 300 loyal inferiors, then I can gain authority any country.’ Yup. A strong leader with a strong follower can influence a lot of people.


43 posted on 06/29/2016 10:44:44 PM PDT by Falconspeed ("Keep your fears to yourself, but share your courage with others." Robert Louis Stevenson (1850-94))
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To: FredZarguna

It is a remarkable fact
that i to the i
is the same thing
as the square root of one
divided by e to the pi.

Very nice. Thank you for the poem.


44 posted on 06/29/2016 10:45:50 PM PDT by Falconspeed ("Keep your fears to yourself, but share your courage with others." Robert Louis Stevenson (1850-94))
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To: KC_for_Freedom
The fundamental theorem of calculus is about as extreme as it gets.

Navier-Stokes and the rest are sideshows, and in fact, Navier-Stokes is neither as important, as pervasive, nor as "extreme" as Laplace's Equation, which doesn't even appear.

May's Map is "extreme" -- under some bizarro world definition that has no meaning in science or mathematics -- but more importantly, it is completely inconsequential.

45 posted on 06/29/2016 10:49:44 PM PDT by FredZarguna (And what Rough Beast, its hour come round at last, slouches toward Fifth Avenue to be born?)
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To: MtnClimber

Fibonacci


46 posted on 06/29/2016 10:51:48 PM PDT by TexasTransplant (Idiocracy used to just be a Movie... Live every day as your last...one day you will be right)
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To: who_would_fardels_bear

Yeah I tried to understand that and just couldn’t


47 posted on 06/29/2016 10:55:01 PM PDT by TexasTransplant (Idiocracy used to just be a Movie... Live every day as your last...one day you will be right)
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To: qam1

That Equation ... Tested, Solved and Proved.

(Get back with me in about 30 years for the correct numerical or $ answer)


48 posted on 06/29/2016 11:00:34 PM PDT by TexasTransplant (Idiocracy used to just be a Movie... Live every day as your last...one day you will be right)
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To: MtnClimber

Interesting post.

I note that there were no muzzle formulas. I had thought they were credited with many math breakthroughs.

Here’s another key formula:

Global warming = BS in - BS out


49 posted on 06/29/2016 11:01:27 PM PDT by Noob1999
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To: MtnClimber

bkmk


50 posted on 06/29/2016 11:03:52 PM PDT by AllAmericanGirl44 (If you ain't the lead dog, the scenery never changes.)
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To: FredZarguna

You are a Sick Puppy!

That Hurt my Head ... Skull damage still being assessed

(Thanks)


51 posted on 06/29/2016 11:05:11 PM PDT by TexasTransplant (Idiocracy used to just be a Movie... Live every day as your last...one day you will be right)
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To: AlmaKing
marriage = kids + pool + house - money^2 -sex^3

Whore motivation = The Big Bank Theory

52 posted on 06/29/2016 11:07:49 PM PDT by Vision Thing (Vote Trump!)
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To: MtnClimber; 6SJ7; AdmSmith; AFPhys; Arkinsaw; allmost; aristotleman; autumnraine; bajabaja; ...
Thanks MtnClimber.


· List topics · post a topic · subscribe · Google ·

53 posted on 06/29/2016 11:18:46 PM PDT by SunkenCiv (I'll tell you what's wrong with society -- no one drinks from the skulls of their enemies anymore.)
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To: Noob1999
Even the Arabic numerals were really discovered by a Persian who stole them from the Indians.

So they get no credit at all.

54 posted on 06/29/2016 11:21:32 PM PDT by who_would_fardels_bear
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To: MtnClimber
I would add the "Ideal Gas Law",

PV=nRT

which is fundamental to thermodynamics

-- and "Ohm's Law,"

V=IR

which is fundamental to electronics.

55 posted on 06/29/2016 11:24:17 PM PDT by TXnMA ("Allah": Satan's current alias; "Barack": Allah's current ally...)
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To: SunkenCiv
Saw an interesting video on the great debate between Niels Bohr and Albert Einstein.

Einstein believed that physics was about trying to figure out how the real world actually works. Bohr believed, especially after all the weirdness of quantum mechanics was seen, that all physics could hope to do was come up with mathematical models that might have nothing to say about what was really out there in the real world.

I think it's interesting that this article is about important equations that have had such a great effect on civilization and yet we don't know if they are really telling us anything about what's out there beyond our limited, error-prone, and failing senses.

56 posted on 06/29/2016 11:25:43 PM PDT by who_would_fardels_bear
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To: Noumenon

Time wounds all deals.


57 posted on 06/29/2016 11:29:06 PM PDT by tet68 ( " We would not die in that man's company, that fears his fellowship to die with us...." Henry V.)
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To: FredZarguna

e^i*pi() + 1 = 0; donc Dieu existe; repondez! - Euler.


58 posted on 06/30/2016 12:20:59 AM PDT by scrabblehack
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To: Larry Lucido

E=MC OH BEER THIRTY !


59 posted on 06/30/2016 3:09:24 AM PDT by Squantos ( Be polite, be professional, but have a plan to kill everyone you meet ...)
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To: MtnClimber

Thanks for posting this.


60 posted on 06/30/2016 3:22:04 AM PDT by OldNewYork (Operation Wetback II, now with computers)
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