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The Golden Ratio

3.75  ·  Rating Details  ·  4,359 Ratings  ·  264 Reviews
Throughout history, thinkers from mathematicians to theologians have pondered the mysterious relationship between numbers and the nature of reality. In this fascinating book, Mario Livio tells the tale of a number at the heart of that mystery: phi, or 1.6180339887...This curious mathematical relationship, widely known as "The Golden Ratio," was discovered by Euclid more th ...more
Published August 4th 2003 by Headline Review (first published 2002)
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Jul 15, 2007 Sabio rated it liked it  ·  review of another edition
Shelves: math_physics
When people leave organized religion, they often look for mystical awe elsewhere. Math is a not infrequent haven of new agers who gave up on the tried and true faiths of their parents. Real math takes lots of work, whereas quick mystical attachment takes very little effort.

This book shows how many people have read far too much into Phi (1.6180339887 ...) [The Golden Ratio]. The author shows how, Phi is prevalent in nature, but it is not magically so. Phi's prevalence is due simple to the nature
Aug 01, 2011 Jasmine rated it it was ok  ·  review of another edition
Shelves: romanian
so I stayed up past bedtime tonight to finish this book, not because I love this book, but because I would give anything to not be reading it anymore and now I'm not.

I'm not a platonist. I don't look at concepts made up by humans and say those describe things humans see so they must have a magical relationship to truth. I actually weirdly assume when people make things up those things should be related to what is true so it is a given they will relate to true things.

there were parts of this th
Mar 15, 2011 Woodge rated it really liked it  ·  review of another edition
Here I go all math geeky again. I picked up this slim book (about 250 pages) a couple years ago and then I started thinking about it and felt compelled to read it. (Voices in my head. You know.) The golden ratio, or phi (pronounced "fee"), was first discovered by Euclid (remember him from geometry class?). Somewhere around 300 B.C. Euclid--

YOU: Whoa-whoa-whoa, wait a minute, Woodge... you actually read another book about math. For fun?! Are you for real?
WOODGE: Yeah, you TV Guide-reading eejit!
Jan 15, 2015 Ms.pegasus rated it really liked it  ·  review of another edition
Livio's book examines the convoluted history and applications of phi. Like π (pi) it is both a constant and an irrational number. It's derivation is deceptively simple. Imagine a line divided into a longer segment (a) and a shorter segment (b); the dividing point is placed so that the longer segment (a) compared to the shorter segment (b) is proportional to the entire length (a+b) compared to the longer segment (a). In other words, a/b=(a+b)/a=phi.

In mathematics, there are many ways to express t
Aug 09, 2014 Jill rated it really liked it  ·  review of another edition
Shelves: pop-science
The Fibonacci sequence (and its consequent relationship to the Golden Ratio) is one of my favourite things. No, really. So I went into this book already interested and somewhat informed. Not sure if that would make a difference, though, because Livio's treatment of this topic is really solid. For one thing, it's clearly written -- which always helps for the artsy reader -- and while formulae and proofs litter the pages, concrete examples and pictures show up frequently. The structure of the book ...more
May 06, 2014 Ob-jonny rated it really liked it  ·  review of another edition
This is a great book about number theory in general and is much more than just the discussion of phi, the golden ratio. It is truly amazing to see how often this number and ratio are found in nature. The widths of the spirals of pinecones and various flowers display the ratio as due patterns in the breeding of rabbits. But some of the numerical properties of the number are equally fascinating. For instance 1/phi is equal to 1 + phi. There is also a section on prime numbers which is just as inter ...more
Apr 01, 2009 Tim rated it really liked it  ·  review of another edition
Mathematical constants make engaging characters in the popular imagination. At least the rash of books for general audiences in this vein published in the last two decades suggests this. Astro-physicist Livio's leading character is a somewhat less well-known constant - those special numbers discovered or created by mathematicians over the centuries. Phi - the so-called Golden Ratio - has been known since Euclid. Geometrically, given a line AB cut by point C, where AC > CB, then locate C on th ...more
Mikael Lind
A fascinating historical expose about how a single number, phi, has (or is believed to have) influenced human creation within such different fields as music, art, architecture and, of course, mathematics of different kind.

The book's strength is that you don't have to be a mathematical minded person to be able to understand it. I could follow the mathematical formulas roughly by the mathematical knowledge I gained more than fifteen years ago, but even though I was persistent enough to try to foll
Phi has some surprising mathematical properties, which are eventually discussed here and there throughout the book.

Mostly, this book is a history of mathematics. From the etymology of numbers, to the Pythagorean brotherhood, and the discovery of incommensurability, and finally, to modern day mathematics.

The book dispels myths of Phi's use in famous works of art, construction of the pyramids, etc.

I find Livio to be a trustworthy author, who prefers demystification over hyperbole, which I respect.
EJ Natale
Jul 20, 2011 EJ Natale rated it did not like it  ·  review of another edition
Terrible book. Poorly written. Vague. No direction.

This book is more numerology. The author creates loose and thin parallels to Phi, then refutes them. This happens repeatedly throughout the book.

The great pyramids might be built based on a ratio similar to phi. Oh, no, maybe not.
Oh, these painting might contain phi built into some of the geometry. Oh, wait, nope. They don't. The artist didn't even know what phi is.
The content makes no sense.

The author goes into lengthy sidebars about art and
Rosemary Paul
Jan 23, 2013 Rosemary Paul rated it it was amazing  ·  review of another edition
Shelves: engineering
It is a great book. I finished it in 2 days. Very stimulating in that I love books that try to give a relationship between numbers and the nature of reality.
PHI 1.6180, not to be confused with PI 1.14159, is considered the Golden Ratio. Discovered by Euclid over two thousand years ago.
The book is a captivating journey through art and architecture, botany and biology, physics and mathematics. It tells the human story of numerous phi-fixated individuals, including the followers of Pythagoras who
Christopher Litsinger
My review for this book will consist of the suggestion of a new title: "In which the author describes in great detail several ways in which the Golden Ratio was documented to be used in art and architecture and then proves those ways to be false with very little detail, and then rambles on for a bit about some other number theory and whether or not God is a mathematician, but generally leaves you somewhat less impressed with Phi than you were to begin with"
I'll admit it's not very catchy, but it
Aug 26, 2009 White rated it it was amazing  ·  review of another edition
This book was given to me by my daughter and son-in-law. Excellent read! I was familiar with the golden ration already from a few of the science reads I have done but this book zeros in on it 100 %. You go from the last page mesmerized by the beauty of all existence with an insurmountable awe with the connection of everything. Not even 4 years of studying philosophy can expose you to the awe of this one book.

This book is a mathematical utopia.

A must read.
Mar 23, 2016 Shaw rated it it was amazing  ·  review of another edition
This was a wonderful book, full of fun thought provoking ideas on the history of knowledge and learning. Two thumbs up, five stars, highly recommended.
Kyle Wright
Having expected a book filled to the brim with Phi related information, I feel let down by the end result. Livio's book covers a broad history of mathematics and geometry in general, with instances of phi thrown in where context allows. While I did learn a lot of interesting information about the origins of math, I felt that Livio left little space for the phi-related aspects, which was the primary purpose of my reading this book.

When Livio does manage to address phi directly, he does so by debu
May 27, 2012 Mark rated it it was amazing  ·  review of another edition
Mario Livio's The Golden Ratio nicely balanced the last book I read about the world's most astonishing number. Actually, it far surpassed it! While Livio debunks the opinion of others that phi is conspicuous in the ancient pyramids and other monumental ancient works of art, his lively discussion of other places where we are surprised to find phi is enlightening and entertaining. Whether you are curious to know more about the golden number, the golden ratio, the golden triangle, rectangle, rhombo ...more
May 21, 2013 David rated it it was amazing  ·  review of another edition
Shelves: math
Reading this book was a stimulating experience. Exploring the mathematical principles and theories studied by various past cultures and how they employed them isn't a new idea but this author is uniquely good at it. Other authors in this genre, such as Amir Aczel can sometimes be guilty of spending too much time on sculpting the biography of a math genre and leaving its concepts severely under-explained. Livio however, created what I felt to be an adequate mix between math teaching an math biogr ...more
May 15, 2008 Teodora rated it it was amazing  ·  review of another edition
Recommends it for: geeks, wonderers, adventurers, naturalists, stoners, people with patience
Recommended to Teodora by: ahhhh, math and I go some time back
Between 1 and 2, these pretty whole numbers, lies a number so fascinating that you might be overwhelmed with the beauty of quantifying beauty's perception.
Enter Phi= 1.6180339887....
This humber can explain the difference between the architecture of the Guggenheim as opposed to that of any classical courthouse (picture columns and squares).
The latter are commensurable numbers unlike Phi, which defines rose petal growth, mollusk shell growth, The proportions in Kate Moss's face, and many other be
Cassandra Kay Silva
Jun 28, 2011 Cassandra Kay Silva rated it it was amazing  ·  review of another edition
Shelves: mathematics
I was so excited to get this book. I have a minor obsession with the golden section/ratio. I have always somewhere deep in my heart hoped that string theory would turn out to have strings vibrating at ratios or frequencies somehow related to the golden section. Unfortunantly I already knew everything in this book. Nuts~! I was hoping to get some new information. I don't think that is a fair reason to say that the book was not great. It was still really fun.
Feb 23, 2012 Chris rated it it was amazing  ·  review of another edition
My never ending quest to comprehend any numbers not addressed in remedial math. This helped a lot. Not dumbed down while not being for physicists only. Very accessible to Land of Oz Pumpkinhead sidekicks like myself.
Peter Lanagan
This was a book I really wanted to like.

Author Marco Livio describes the history of the Golden Ratio (Phi), an irrational number which has been imbued with special meanings by some. Livio explored the history of the philosophy of mathematics starting with the Pythagoreans and follows developments in mathematical philosophy to the present day. The author uses this history to explore how Phi shows up in nature such as with the distributions of leaves on planets, the spiral of a conch shell, and th
The Golden Ratio turned out to be somewhat interesting, but ultimately tedious book about phi. The book does a decent job of covering what exactly phi is, its fantastic mathematical properties, as well as some of its appearances in nature. That being said, much of the books is a critique of where it DOESN'T appear. Although debunking claims of appearing in the golden pyramids and art is important in scholarship, it certainly takes away from the magic of the number, as well as makes for boring re ...more
Thomas Paul
Aug 08, 2013 Thomas Paul rated it did not like it  ·  review of another edition
What a depressing book this turned out to be. I thought a book about the "golden section" would have been interesting but in the hands of Mario Livio it is pure pain. To give a few examples... The author discusses the theory that the golden ratio was used by the builders of the pyramids and refutes it easily. And then continues to refute it for page after page. Then he does the same thing with the Parthenon, destroying the theory using the exact same reasons he used for the pyramid, explaining t ...more
Feb 27, 2013 Ryan rated it did not like it  ·  review of another edition
The scholarship in this book is extremely poor. We should expect better from someone this well credentialed. For all the mystical nonsense and grandiose claims regarding where the Golden Ratio appears in art, this book over compensates and makes the opposite mistake without considering the facts. The author is guilty of the very thing he criticizes. Livio obviously wrote this book with a preconceived idea of what he wanted to be true, and didn't do any serious research before he wrote it. If he ...more

"La sezione aurea" ovvero "Opere famose che non hanno nulla a che spartire con ɸ"
Non è mia abitudine lasciare da parte un libro, ma quando è troppo, è troppo.
La storia di ɸ, un numero irrazionale che vale 1,618..., e del suo sorprendente ricorrere negli ambiti più svariati, è un argomento che ben si sarebbe prestato alla stesura di un saggio valido.
Quello di Mario Livio mi ricorda vagamente un trattato esoterico un po' fuori luogo, in cui gli appassionati di ɸ (categoria di cui lui, per fortuna,
Jul 28, 2014 Gary rated it it was amazing  ·  review of another edition
I really enjoyed this. The scope of the book was great, through history with stops at art, architecture, music, galaxies, and snails. I really appreciated the skeptical debunking of a lot of the golden ratio claims made about the Pyramids, Parthenon, and even the Mona Lisa. With that nonsense out of the way what really blew my mind was the "surprise" aspect of how the golden ratio turns up in the solutions to other problems. And finally, the last chapter was probably my favorite... the philosoph ...more
I found the seed of the book interesting, but after long strings of repetitions of examples, I got a little bored. I think the author has hit on a voice that works for people with some mathematical background and interest, but I think he's overshot for people who didn't enjoy learning math (on the other hand, would they have picked up the book in the first place?). I confess that I skipped the proofs at the back. But I did enjoy the beginning of the book - brief bits of the history of mathematic ...more
Feb 05, 2016 Dr.J.G. rated it liked it
There is much that can be said about phi, the golden ratio, and the golden rectangle, used intuitively in architecture and drawings for aesthetic reasons. It was noticed because it kept ocurring and recurring, and the series that gives the number was discovered.

This book gives some of it but is really not mathematics and as for any reader who is a non prefessional or layperson in the subject of mathematics, it might provide some interesting history and anecdotes apart from some introduction to
Troy Blackford
Jan 15, 2016 Troy Blackford rated it really liked it  ·  review of another edition
Fascinating, but I really did better with the historical and biographical aspects than the straight math parts. Not because it was poorly written--it was great all the way through. It's just because I am a lot more people-oriented than I am good at numbers. Surprisingly, the bulk of this book is spent debunking the idea that almost every ancient building, sculpture, painting, or piece of music was made with the golden ratio in mind. Surprisingly few, according to the scholarship of the author, a ...more
Tim Doughty
I find that I'm not really that interested in mathematics.
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People read this stuff? 7 81 Aug 07, 2013 06:35AM  
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