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Turning point

One Good Turn: A natural history of the screwdriver and the screw by Witold
Rybczynski, Simon and Schuster, £9.99, ISBN 0743208498

IT’S a rare book that blends scholarship, authority and enthusiasm. Yet
Witold Rybczynski manages to do just that in One Good Turn. The
subject? The history of the screw and the screwdriver.

Rybczynski does show something of the enthusiasm and idiosyncrasy of the
curious Victorian naturalist in his book, a quality often absent from scholarly
monographs. His book began when he was commissioned by The New York
Times to write an essay on the most useful common tool of the past thousand
years. After some debate, he picked the screwdriver, and set off to explore the
origins of this gadget.

The Screwdriver turns out to be the only tool in common use whose
origins cannot be traced back to ancient times. It is a relative newcomer to the
toolbox compared with, for example, the saw. The screwdriver also appears to be
the one important mechanical device that the Chinese didn’t invent
independently. His search was so fruitful that he has expanded his brief essay
into a book.

Rybczynski takes us on a journey to unfamiliar museums, delving into rare
books about those who express themselves through works rather than words, and
asking questions historians don’t usually ask. Few scholars make a better job of
exploring museum collections.

Many items in these collections still await careful study. For example,
scrutinising a matchlock musket dated 1570 in New York’s Metropolitan Museum of
Art, he discerns that the lock is joined to the stock with screws. As he
discusses its significance, he refers to a book and then to a manuscript of
1475.

There’s a topical twist to this story: Rybczynski sets out and proves to his
and our satisfaction that the key tool of the second millennium is the
screwdriver. That done, he sets himself a far harder task. Who invented this
precious tool? Off he goes in search of slot-headed screws, including images of
them and of devices for turning them. I shall not ruin your enjoyment of the
chase by telling you its end—and in any case I wasn’t completely
convinced.

I was convinced, however, by his portrayal of knightly armour as not just
high technology defence, but also a manufacturing challenge. He points out that
London’s Greenwich armoury employed not only general armourers, but also
platers, millmen, helmsmiths, mailmakers and locksmiths. Looking at Dresden
jousting armour of the late 16th century he notices they are held together with
bolts with slotted heads. “Armourers, too, used screwdrivers!”

Though One Good Turn isn’t a reference book, Rybczynski’s light
touch should not detract from his real expertise in “decoding” objects. He’s
sometimes uncritical in his use of sources, and his eye is occasionally
unreliable as it darts from one topic to another, and ranges over thousands of
years. One moment, he seizes upon the evidence for the Romans’ use of the nut
and bolt—provided by a nut in Bonn’s Provincial Museum—despite the
classical world’s lack of the pointed screw. Then he’s haring off to scrutinise
the 20th-century origins of the Phillips screwdriver. On the way, he picks out
the medieval armourers’ use of screws, discusses the associates of Henry
Maudslay, the Londoner who pioneered machine tools in the early 19th
century.

There’s a book of real value behind his consciously unprofessional touch.
Next time you take a plane, don’t try to stretch out the less interesting parts
of a newspaper. Read this book and feel refreshed and enriched. You’ll feel the
benefit the next time you visit a museum and find yourself seeing everything in
a new way.

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