Skip to main content

Seeing Through Illusions – Richard Gregory ***

Oxford University Press has a long and distinguished history of producing popular science books that sound as if they are going to be brilliant, but turn out to disappoint. Often this is because the author is a scientist who knows his subject, but doesn’t really know how to communicate it to the general reader. Seeing Through Illusions is a classic case of this phenomenon. The premise is superb. Using optical illusions and what they reveal to explore the workings of human sight and perception. But sadly it is a wasted opportunity.
It’s revealing that the first actual optical illusion in the book doesn’t come to the colour plates have way through. There’s page after page of context and explanation without ever showing us an optical illusion – the reader is desperately wanting to see one and we just keep getting comments on them without the actual things. When they do crop up they are little more than listed, with plenty of jargon but little relevance to the structure of the text.
It would have been so much better to have built the structure around the illusions, allowing them to gradually reveal the theory and ideas, rather than piling in all the theory in text form first, then finally throwing in illusions.
A few specific issues. Richard Gregory can be a bit fuzzy when off his subject. He tells us that Einstein won his Nobel Prize for his paper on Brownian motion – in fact it was his paper on the photoelectric effect that won him the prize. And the text is often overladen with jargon. Take this caption for an illusion: ‘Ponzo illusion. The basic perspective illusion. The upper horizontal line appears expanded by constancy scaling, normally compensating shrinking of the retinol (sic) image with increased distance.’ Is that clear?
Just occasionally there are moments of real interest where something is revealed about the way our complex visual systems fool us in the way they produce an apparent image of what we see. But this could have been an absolutely wonderful book, and it is, in practice, hard to recommend it for the general reader. What a pity.
Hardback:  
Review by Brian Clegg

Comments

Popular posts from this blog

The Feed (SF) - Nick Clark Windo ****

Ever since The War of the Worlds, the post-apocalyptic disaster novel has been a firm fixture in the Science Fiction universe. What's more, such books are often among the few SF titles that are shown any interest by the literati, probably because many future disaster novels feature very little science. With a few exceptions, though (I'm thinking, for instance, The Chrysalids) they can make for pretty miserable reading unless you enjoy a diet of page after page of literary agonising.

The Feed is a real mixture. Large chunks of it are exactly that - page after page of self-examining misery with an occasional bit of action thrown in. But, there are parts where the writing really comes alive and shows its quality. This happens when we get the references back to pre-disaster, when we discover the Feed, which takes The Circle's premise to a whole new level with a mega-connected society where all human interaction is through directly-wired connections… until the whole thing fails …

The Bastard Legion (SF) - Gavin Smith *****

Science fiction has a long tradition of 'military in space' themes - and usually these books are uninspiring at best and verging on fascist at worst. From a serious SF viewpoint, it seemed that Joe Haldeman's magnificent The Forever War made the likes of Starship Troopers a mocked thing of the past, but sadly Hollywood seems to have rebooted the concept and we now see a lot of military SF on the shelves.

The bad news is that The Bastard Legion could not be classified as anything else - but the good news is that, just as Buffy the Vampire Slayer subverted the vampire genre, The Bastard Legion has so many twists on a straightforward 'marines in space' title that it does a brilliant job of subversion too.

The basic scenario is instantly different. Miska is heading up a mercenary legion, except they're all hardened criminals on a stolen prison ship, taking part because she has stolen the ship and fitted them all with explosive collars. Oh, and helping her train her &…

On the Moor - Richard Carter ****

There's much to enjoy in Richard Carter's pean to the frugal yet visceral delights of being one with England's Pennine moorland. If this were all there were to the book it would have made a good nature read, but Carter cleverly weaves in science at every opportunity, whether it's inspired by direct observations of birds and animals and plants - I confess I was ignorant of the peregrine falcon's 200 mile per hour dive - or spinning off from a trig point onto the geometric methods of surveying through history all the way up to GPS.

Carter is something of an expert on Darwin, and inevitably the great man comes into the story many times - yet his appearance never seems forced. It's hard to spend your time in a natural environment like this and not have Darwin repeatedly brought to mind.

I confess to a distinct love of these moors. Having spent my first 11 years in and around Littleborough, just the other side of Blackstone Edge from Carter's moor, the moorland…