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Pascal's calculating machine
The London Science Museum's collection spans technology throughout history, from medical equipment and computers to rockets and steam engines. ZDNet UK takes a look at some of its most significant objects — large and small, everyday and out of this world.
The device above is an exact replica of Blaise Pascal's calculator. Pascal (1623-1662) was one of France's most celebrated mathematicians. A child prodigy, inventor, philosopher and Catholic theologian, he built this device when he was just 19 to help his tax-collector father with his figures.
The Pascaline calculator uses a stylus to move the wheels, which can handle numbers up to 999,999.999. The device was one of the world's first mechanical adding machines, but was too expensive to mass-produce at the time.
Photo credit: Science Museum
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