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Brief History of Infinity: The Quest to Think the Unthinkable

Author: Brian Clegg
Publisher: Robinson Publishing
Category: Book

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Rating: 4.0 out of 5 stars

17 reviews
Sales Rank: 14018

Media: Paperback
Pages: 288
Shipping Weight (lbs): 0.5
Dimensions (in): 7.6 x 5.1 x 0.7

ISBN: 1841196509
Dewey Decimal Number: 600
EAN: 9781841196503
ASIN: 1841196509

Publication Date: September 1, 2003
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Customer Reviews: Read 12 more reviews...

2 out of 5 stars

There are better works around January 5, 2008
If I'd not read Rucker's work on the subject (Infinity and The Mind), I might have thought this was pretty cool. But having said that, we may be reaching saturation point on the books about mathematicians (which this seems to be) - we need more about the *maths*.

I think there's a perception that to keep it readable it needs to be dumbed down. There's a lot of that going on. It's possible to explain *everything* in simple terms if you try hard enough. Maybe Clegg hasn't tried all that hard, or maybe he's scared of alienating the casual reader. Whatever, he doesn't do much for the mathematically literate who want to get something out of this. There's not actually all that much.

3 out of 5 stars

To infinity and beyond ................. June 15, 2006
1 out of 3 found this review helpful

There is almost a pun in the title: how can you have a brief history of infinity? However, this book by Brian Clegg is part of a series, so it is stretching bounds of probability to suggest that the whole series is named just to get a pun in a title! I have not read any of the others in the series, but from their titles, they seem to be of a historical nature, rather than concepts and ideas. The sub-title of this volume is also interesting: "the quest to think the unthinkable". That statement gives a key to the book. What does the notion of infinity give us?

For me the first 100 pages of Clegg's book do not really work. It is both slow, and nebulous. However, after that, it opens up, and gives a good narrative of the progress towards the unreachable. Strangely, that is not just the infinitely large, but also the infinity small. Somehow "proper" numbers are sandwiched between the immeasurable at either ends of the spectrum. Clegg falls on the side of the usefulness of ideas, rather than the sheer understandability. Calculus, in both the Newtonian and Leibnizian forms, is introduced as "something that works". It was only later that the need for infinitely small is eliminated from calculus - by then this mathematical tool had been very useful in solving many real problems.

After the slow labouring start, the volume CAN be a beginner's guide to the subject, but is probably not be for the faint-hearted. It will help your understanding if you are familiar with ideas from modern mathematical thinking. If not, the notion of there being different `levels' of infinity can come as rather a jolt. How can two numbers, both of which are not countable, be different? How can there be the same number of odd numbers as there are of odd-and-even numbers? It is not surprising that the man behind set theory, Georg Cantor, lost his sanity when investigating the infinitely large.

In essence, the book covers so much more than just infinity. It really does go "to infinity and beyond". Infinity is a strange idea, but one that underlies many of the advances that have taken place since the start of the 20th century. Advances in number theory, cosmology, physics and atomic physics can be better understood if a basic understanding of infinity is grasped. Clegg covers these parts well.

The title was not a pun. However, Clegg does not disappoint in his last sentence. "When it comes to infinity, the possibilities are, perhaps inevitably, endless". I suppose he had to say that, didn't he?

3 out of 5 stars

An easy way to infinity May 11, 2006
7 out of 7 found this review helpful

I was a little disappointed that works and discoveries about infinity was not treated in more detail. Instead, many of the pages are used for biographies; The life and doings of a lot of mathematicians are covered from childhood to death. This of course can be (or is) very interesting, but was not what I excpected. I also got a feeling that this was done in part to avoid writing more about infinity, which of course is a much more difficult topic. The book is intended for a reader with little mathematical background, and this may be the reason why the author avoids difficult questions. There are good and readable presentations of some of the wellknown paradoxes, which should make everyone wonder about the strange behavior when we move away from the finite experience.

4 out of 5 stars

definitely worth reading March 30, 2006
2 out of 3 found this review helpful

I'm no mathematician but still really enjoyed this book. There were bits I didn't understand (some of the set theory ideas, and the proof for aleph-1), but even so it scratched an intellectual itch about Infinity that I've had for some time. Ever wondered how you can fit a closed shape with an infinite border within a finite circle? Yes? then this is the book for you.

4 out of 5 stars

Excellent January 26, 2005
9 out of 10 found this review helpful

This is a very interesting and informative description of the history of infinity.

Infinity is a fascinating (and complex) subject but Brian Clegg does an extremely good job of presenting it in a highly readable and essentially non-mathematical way. I have a mathematical background but this book should be accessible to all.

I tend to agree with the previous reviewer who criticised presentation of some of the more complex mathematics in particular the higher alephs and Godel. However, I do not believe that these issues significantly detracted from my enjoyment of the book (mainly because I had not expectation that they would be covered well).

An excellent popular science/mathematics book - highly recommended to all