The Bicycle Wheel, Jobst Brandt (1981) Acocet 0 9607236 4 1 Octo 150pp $10.95 A treatise, nearly as elegant as its subject, that guides readers through the physics and engineering of this remarkable invention

So much of a given are bicycle wheels that one does not often pause to consider what a beautiful and remarkable invention they are. Often tipping the scales at less than a kilo apiece, they will comfortably support riders of 100 times that weight, or more, and transmit more than 1000 watts of power without showing the strain.

Brant's simply illustrated book, guides even those with no scientific training an engaging insight into the engineering principles that lie behind these structures. So effortless is his style, however, that at no point do you feel as though you are sitting though a lesson.

The author also guides readers though the process of making wheels - a process that he persuasively shows is within the wit of most of us - with a bit of application, and the right tutor. Happily Brandt is just that. Like this book, it is an experience to be savoured when you have time to give it some relaxed attention. You will be ever more appreciative of the mechanical miracle between your legs, once you have done so.

PS May 09