SKU: 27593305960

Phi Pendant 5

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Description

Phi Pendant 5What makes a single number so interesting that ancient Greeks, Renaissance artists, a 17th century astronomer and a 21st century novelist all would write about it? Its a number that goes by many names. This golden number, 1. 61803399, represented by the Greek letter Phi, is known as the Golden Ratio, Golden Number, Golden Proportion, Golden Mean, Golden Section, Divine Proportion and Divine Section. It was written about by Euclid in Elements around

What makes a single number so interesting that ancient Greeks, Renaissance artists, a 17th century astronomer and a 21st century novelist all would write about it? It’s a number that goes by many names. This “golden” number, 1.61803399, represented by the Greek letter Phi, is known as the Golden Ratio, Golden Number, Golden Proportion, Golden Mean, Golden Section, Divine Proportion and Divine Section.  It was written about by Euclid in “Elements” around 300 B.C., by Luca Pacioli, a contemporary of Leonardo Da Vinci, in “De Divina Proportione” in 1509, and by Johannes Kepler around 1600.

We printed Phi out to 2,000,000 digits and we are pretty sure we have broken the World record for highest Phi digits printed, let alone do it on a coin sized area. 

This pendant features a sparkling design created with diffractive elements and the latest nanotechnology. The look is further complemented by the beautiful sterling silver pendant the medallion is centered in.

This is a great gift for anyone who loves math and science, and is enjoyable for friends and family of all ages. The text is so small, one would need a high-powered microscope to view it, but since many do not have ready access to such a thing, we have provided a digital reader for your viewing pleasure and convenience.

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SKU: 27593305960

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4.1 ★★★★★
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S Mancusi
Lowell, US
★★★★★ 3
A bit repetitive
Format: Paperback
The Family Systems approach makes a great deal of sense and is very helpful. But this book seems to be somewhat formulaic - every case looks the same.
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Reviewed in the United States on September 13, 2013
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Chelsea, US
★★★★★ 5
Extremely enlightening!
Format: Paperback
A psychologist recommended I read this book as my daughter and I were having issues. Wow! What you'll find in this book will change your whole thinking about relationships with family members. Very enlightening as to why we all behave as we do and what affect our behavior has on the development of our children. A MUST read for every parent. I bought a copy for each of our children and grandchildren to read.
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Reviewed in the United States on July 31, 2010
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Xandra
Battle Creek, US
★★★★★ 4
Some good advice
Format: Paperback
Roberta Gilbert's "Extraordinary Relationships" offers useful advice for dealing with family relationships couched amidst an examination of systems theory. Although it is more technical than a lot of self help, it can be used by a general audience. Gilbert examines the theory of Murray Bowen, who countered notions of individual psychology (like those of Freud) with the theory that personality develops as a result of a family unit. The nuclear family, like a herd of amimals, reacts against each other, speaking a common language that is known only to them. Children raised in that family then detach from the family to form their own adult relationships, where dynamics may follow the family system. In order to heal adult problems, the author offers some practical advice, like taking the time to observe old patterns as they crop up (family Christmas fights come to mind) with the dispassionate mind of an observer. The author states that individuals will better be able to understand family dynamics and their role in them by doing this. I've read this book twice, and it has helped me better understand my family, and my role within it. I would recommend it for those who are seeking to better understand their family of origin, and what they can do to improve their present life through understanding the past.
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Reviewed in the United States on November 9, 2002
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Richard Davila
Battle Creek, US
★★★★★ 5
Good book
Format: Paperback
a very interesting book for the good reader.
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Reviewed in the United States on March 2, 2026
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Madelyn Concepcion
Lake Worth, US
★★★★★ 5
Buen libro
Format: Paperback
Un excelente libro de autoayuda, lo recomiendo mucho
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Reviewed in the United States on August 27, 2025

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