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What Makes an Equation Beautiful?
New York Times ^

Posted on 10/25/2004 1:46:25 AM PDT by accipter

CONSIDER a verbal description of the effect of gravity: drop a ball, and it will fall.

That is a true enough fact, but fuzzy in the way that frustrates scientists. How fast does the ball fall? Does it fall at constant rate, or accelerate? Would a heavier ball fall faster? More words, more sentences could provide details, swelling into an unwieldy yet still incomplete paragraph.

The wonder of mathematics is that it captures precisely in a few symbols what can only be described clumsily with many words. Those symbols, strung together in meaningful order, make equations - which in turn constitute the world's most concise and reliable body of knowledge. And so it is that physics offers a very simple equation for calculating the speed of a falling ball.

Readers of Physics World magazine recently were asked an interesting question: Which equations are the greatest?

Dr. Robert P. Crease, a professor of philosophy at the State University of New York at Stony Brook and a historian at Brookhaven National Laboratory, posed the question in his Critical Point column and received 120 responses, nominating 50 different equations. Some were nominated for the sheer beauty of their simplicity, some for the breadth of knowledge they capture, others for historical importance. In general, Dr. Crease said, a great equation "reshapes perception of the universe."

(Excerpt) Read more at nytimes.com ...


TOPICS: Front Page News; Miscellaneous; Philosophy
KEYWORDS: 1plus1equals69; fun; india; math; thisisthis
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To: Bandaneira

Equation? Sorry, I don't know much about riding horses... :-)


21 posted on 10/25/2004 3:02:02 AM PDT by WestVirginiaRebel (John Kerry is a hunter like my name is Mohommad.)
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To: accipter
My favorite:

e(pi i) + 1 = 0

Arguably the five most important constants all in one equation.
22 posted on 10/25/2004 3:02:07 AM PDT by clueless idiot
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To: WestVirginiaRebel
Equatorial Guinea is hosting the Equestrian Games for Equation-Challenged Echidnas.

Sorry, I better quit while I am ahead...
23 posted on 10/25/2004 3:05:04 AM PDT by Bandaneira (The Third Temple/House for All Nations/World Peace Centre...Coming Soon...)
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To: clueless idiot

Looks like someone threw their Travel Scrabble board out the car window.


24 posted on 10/25/2004 3:06:01 AM PDT by Bandaneira (The Third Temple/House for All Nations/World Peace Centre...Coming Soon...)
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To: Bandaneira

No, not at all. We're not talking here about whether they should be eradicated, or whether they can be eraditcated.

Human nature is what it is.

But it would certainly be nice to know that charity, and foregiveness, and humility, and faithfullness are actually something worth while.

As I have expressed it before, there are two choices. Either the universe has some sort of meaning or not.

If it has no meaning, then all our ideals about goodness and kindness, hard work, contribution, all those ideals are wotrhless.

Lately I am inclined to believe the latter.


25 posted on 10/25/2004 3:06:19 AM PDT by djf
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To: djf
I could prove to you that your cynicism is misplaced but it would take a few hours and a couple of beers at a nice pub somewhere.

All I can say is to have faith in the ultimate benevolence of the universe. The universe is benevolent, stable, ordered and expansiveness. The next ten months are going to be very interesting...
26 posted on 10/25/2004 3:11:04 AM PDT by Bandaneira (The Third Temple/House for All Nations/World Peace Centre...Coming Soon...)
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To: accipter
I've always considered that Gödel's equation was proof of existence of God:

Think of it, the primary examples of the irrational, transcendental, imaginary and natural numbers combine to make nothing.

Comrade Bork

27 posted on 10/25/2004 3:19:15 AM PDT by ComradeBork (Three purple hearts + no band-aids required = Presidential Timber?)
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To: Bandaneira

We all have our destiny. The funny thing is, no matter how rich or poor, beautiful or ugly, brilliant or boring, it is not of our chosing. And I guess the best we can do is walk with a smile for the olde woman we see on the street.


28 posted on 10/25/2004 3:21:12 AM PDT by djf
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To: ComradeBork

The use of imaginary numbers in calculus was, to me, the most hypocritical concept ever. Here you are studying math, a finite science and they throw in imaginary numbers to make thing come out the way they want. Sheesh.


29 posted on 10/25/2004 3:34:57 AM PDT by raybbr
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To: blandbutmarvellous

Aahhhh, but what about the hotel tax?


30 posted on 10/25/2004 3:35:07 AM PDT by omniscient
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To: SkyPilot

Could I ask you what exactly was the class and what was he trying to prove? I'd have to assume that it was an advanced physics class, probably graduate level.

(this is why I'm curious:)

I can't imagine any physics professor spending an entire class and six blackboards "proving a theorum" - certainly not in an undergrad physics class anyway.

As far as I know, physics just doesn't use math that's all that hard (relatively speaking anyway) -

for example, you can start with the four Maxwell's laws of electromagnetism and derive that the speed of light is constant for all non-accelerating observers, or you can derive Einstein's e=mc**2, or you can derive the Lorentz contraction for Einstein's relativity, but these can all be done in a few steps. I'd like to know what physics theorum would take six blackboards and an entire class time to prove.

I'd like to retell the story, so please let me know a few more details.


31 posted on 10/25/2004 3:45:24 AM PDT by Flashlight
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I can't explain this equation very well in English, but I'm gobsmacked that the summation of x, where x is 1 .. n, squared, equals the summation of x cubed, where x is 1 .. n.

(using E to represent the greek symbol, and assuming x = 1 .. n beneath) :

(E(x))^2 = E(x^3)

(1)^2 = (1^3)
(1 + 2)^2 = (1^3 + 2^3)
(1 + 2 + 3)^2 = (1^3 + 2^3 + 3^3)

32 posted on 10/25/2004 3:55:19 AM PDT by vollmond (Head back to base for debriefing and cocktails.)
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To: raybbr

It's kind of like the movie "Harvey", where the imaginary rabbit is treated as real by Jimmy Stuart. Harvey might not really be real, but by acting like he's real, Stuart's character can easily accomplish things (like influencing other people) he otherwise couldn't.
Therefore, imaginary Harvey serves a useful purpose, just like imaginary numbers do.


33 posted on 10/25/2004 3:57:13 AM PDT by Flashlight
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To: vollmond

you explained it very well. that's a pretty slick equasion.

Now I wish I could understand why it's so. If you have an insight that explains why this works, please let me know. I'll probably be fiddling with it until I can understand it (if ever).


34 posted on 10/25/2004 4:07:43 AM PDT by Flashlight
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To: accipter

What Makes an Equation Beautiful?


When you can fit it on the back of your hand during test time, like Maxwell's Equations.


35 posted on 10/25/2004 4:15:51 AM PDT by guitfiddlist (When the 'Rats break out switchblades, it's no time to invoke Robert's Rules.)
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To: Flashlight; vollmond

Try this hint:

S(n) = 1+ 2+...+n

C(n) = 1^3 + 2^3 +...+n^3

S(n)^2 = C(n)
Use induction
It is true for n = 1

S(n+1)^2 = C(n+1)

Left side: = (S(n) + n+1)^2= S(n)^2 + 2(n+1)S(n) +(n+1)^2
Right side: = C(n+1) = C(n) +(n+1)^3

Exercise: finish the proof


36 posted on 10/25/2004 4:23:09 AM PDT by AdmSmith
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To: sharktrager

My favorite?

(Size 40 waist)-(10 lbs.) = Size 36


37 posted on 10/25/2004 5:21:52 AM PDT by WorkingClassFilth (What can you expect from a political party full of master-debators?)
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To: CarrotAndStick

It is OBVIOUS that you are a DU schill, sent here to FR to show how DEM's understand the economic world: ALWAYS asking the wrong question....


38 posted on 10/25/2004 5:23:33 AM PDT by Elsie (Heck is where people, who don't believe in Gosh, think they are not going....)
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To: CarrotAndStick
About 300 million people were sharing a nation......................
 
The cost to run the Nation per year is...............
 
 
How much will YOU pay directly and how much INDIRECTLY????

39 posted on 10/25/2004 5:31:26 AM PDT by Elsie (Heck is where people, who don't believe in Gosh, think they are not going....)
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To: raybbr; Flashlight
The use of imaginary numbers in calculus was, to me, the most hypocritical concept ever. Here you are studying math, a finite science and they throw in imaginary numbers to make thing come out the way they want. Sheesh.

There's nothing "imaginary" about imaginary numbers, they're quite real, even if they aren't "real numbers".

Don't mistake an unfortunate naming convention (which was partly chosen in jest anyway) for some sort of actual "illegitmacy".

40 posted on 10/25/2004 5:41:47 AM PDT by Ichneumon ("...she might as well have been a space alien." - Bill Clinton, on Hillary, "My Life", p. 182)
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