And now for something slightly different...

A few years ago, my brother Stephen, who is a Professor of Engineering at Sheffield University asked me to design front and back cover illustrations for a technical handbook, "The Little Book of Thermofluids" He specified a whimsical illustration of fire-fighters trying to extinguish a burning copy of the same book, using a completely inadequate hand-pump. The back cover shows the result of their effort.

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As you can see, I temporarily dropped a few of my self-imposed working rules, allowing myself the use of gradients, textures, shadows and outlines. My brother was very pleased with my illustrations.

Last year he revised the book and asked me to design new illustrations. For the front cover he suggested a "perpetual-motion waterfall" as made famous by M C Escher. I was a bit stumped as to how to draw this without just rehashing Escher's design. I tried a design using a bathtub and a rubber duck, but Stephen said it looked too cartoony; "it's NOT a children's book!".

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Then I had the idea of using Sheffield landmarks. Not knowing the area well, I got him to suggest some suitable buildings. I then worked from photos that I found on line, using Xara's isometric grid, to produce drawings of St George's Church (now used as a lecture hall), the modernist Arts Tower and a polygonal structure called the Rotunda. Finally I added en endless watercourse connecting the buildings, along with a waterfall at the top of the church, a waterwheel and a pair of wires connecting the Arts Tower to the now lit-up Rotunda.

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The back of the book features another physical impossibility. It's an electric car with a wind turbine on top. The faster it goes, the more power it generates and the faster it goes... ;) I used feathering to give the impression of a 3-D model, but it's all drawn in Xara, again using the isometric grid.

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Very ingenious :thx

Looks good, Simon. Actually I like the duck best.

Like the duck best. It is simple and communicates the quickest.

The simplest solutions are often the best. What happens if you leave out the duck? Or replace the duck with a sailboat or some kind of water craft?

Quote:

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Originally Posted by gwpriester

Like the duck best. It is simple and communicates the quickest.

The simplest solutions are often the best. What happens if you leave out the duck? Or replace the duck with a sailboat or some kind of water craft?

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The duck is actually the most important part of the mechanism. Also, the "uphill" part of the flow breaks the Second Law of Thermodynamics all by itself.

Sadly, in this instance I had to bow to the better judgement of Professor Stephen Bernard Marcus Beck, who is after all an expert in his field. And also my little brother. ;)

But I am still pleased with the way the final artwork turned out.

Wind-powered car is superb!! Where can I buy one?:)