The principle behind this book is an excellent one. To use the science of everyday things to explore sophisticated science and the scientific method. This is the kind of work that earned the author the iGNobel Prize – but not in a bad way.
Where it works well, it works very well. The section on cooking food, for example, is really interesting. But sometimes it all gets very anorak, so that (for example) the title chapter (which is actually more about dunking biscuits than doughnuts) is, frankly, rather dull, as is the section on the physics of tools – though even this has occasional bursts of interest.
The chapters stray from the useful if scientifically trivial aspect of estimating (enabling you to guess an approximate total for your supermarket bill in case, erm, the till added it up wrong I suppose) to the nature of taste (another good chapter) and what happens when you throw a boomerang.
To its credit, this is another ‘silly scientific questions answered in a page’ book. Instead it goes into some depth on each topic, and Len Fisher brings in various experts to add their knowledge on subjects they never thought of addressing. So the idea is excellent. But somehow the execution doesn’t quite live up to the promise.