by David Walker PhD, DSc, FRS, who is Emeritus Professor of Photosynthesis at the University of Sheffield. He is a pioneer of the field of photosynthesis, and his papers and books have made a major contribution to present knowledge of plant physiology. He has contributed to technical training courses for scientists in many Third World countries. He is a Fellow of the Royal Society and a Corresponding Member of the American Society of Plant Physiologists. In 1990 he was awarded the Humboldt Prize and made a member of the Academia Europea in 1994. In 2004 he was the recipient of the Int. Soc. of Photosynthesis Research Communication Award.

1) The first book"Leaf in Time" (3.4MB download) is a charming, professional, colourful pdf book (complete with soundtrack if properly set up) on photosynthesis and closely related topics. Using photosynthesis as the link, this beautifully produced book looks at a range of topics of interest to pupils especially at Y5 and 6 (animals and plants are interdependent, process of photosynthesis, greenhouse effect, energy conservation) though it will also be of interest and value to older pupils.

2) The second book "A NEW Leaf in Time" is a much more rambling and personal work and is subtitled "A book about photosynthesis and how green creatures have shaped the world. For readers between nine and one hundred and nine". It has been written by David Walker and is filled with lots of active links to websites and sound bytes. It has been illustrated by his family, it has references to David's holiday home in Northumberland and the children's tree-house. "The Prof" and his grandchildren are the characters in the story. It covers everything scientific that a retired professor might wish to communicate to his young grandchildren, complete with humour (which 10 year olds will understand but will certainly make adults smile) ...

 Atoms and electrons (electricity)
 Photosynthesis
 Photons (light stages of photosynthesis)
 Light -> electricity -> energy (as sugar)
 Energy -> electricity -> light
 Using light to split water
 Catching CO2
 Beginning of the world
 Beginning of life
 Prokaryotes -> eukaryotes
 Kingdom, Phylum, Order, Family, Genus, Species
 Respiration
 Cyanobacteria
 Why is the sky blue?
 Why are leaves green?

It is authoritative and approachable for children. Adults, however will appreciate the numerous links to other sites (eg one outlining how Swann in Sunderland beat Edison to invent the light bulb), soundbytes, literary references etc.

It is a work which will never be finished, as such, but does not need further chapters to be intelligible, useful, approachable and thoroughly enjoyable.

The book is presented here as 7 separate chapters as well as the whole book which is a huge download.

You should first ensure that you have the latest (free) version of Adobe Acrobat Reader installed (check here) or some of the features may not work for you. You also need an active link to the internet to use those links/features.

Introduction (You will need to read this to get the most out of the book)

Chapter One: Amber becomes electrons (11MB)

Chapter Two: Making water run up hill (4MB)

Chapter Three: “Sugar, ahh, honey, honey. You are my candy girl” (7MB)

Chapter Four: In the beginning, there be honeycombs and archdeacons (16MB)

Chapter Five: A Forced Marriage or a Marriage of Convenience? (16MB)

Chapter Six : The Blue Greens (5MB)

Chapter Seven : The eyes have it (10MB)

Alternatively ...

You may download the WHOLE 7 CHAPTERS (67MB) (Beware this could take a very long time! However, this allows crosslinks between chapters to work.)

As this is a "work in progress", you may also download the most up-to-date copy of the whole 7 chapters from this link. This will also take a very long time!

Please note that SAPS do not hold the copyright to these works.
The following copyright statement refers to the items downloaded from this page.
_________________________________
Text copyright 2008 David Alan Walker
Illustrations copyright 2008 Richard Walker
Published in 2008 by Oxygraphics
enquiries@oxygraphics.co.uk
http://www.oxygraphics.co.uk/
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In accord with academic custom and practice, appropriate acknowledgement of source should always be made.