Design drawing of Difference Engine No 2, 1847.

Design drawing of Difference Engine No 2, 1847.
3 2 c m
40cm
actual image size: 32cm x 24cm

Description

Plan view of a section through the addition and carriage mechanism of Charles Babbage's Difference Engine No 2. The two full gear wheels are figure wheels coupled by an intermediate sector wheel; the upper part of the drawing shows the carriage mechanism; the 'fairground whirl' is a helical arrangement of carry levers that sample each decade in turn as part of the 'succesive carry' operation. Charles Babbage (1791-1871) was an English mathematician and is widely considered the 'father' of modern computing.

Image Details

Image Ref.
 
10303634

© Science Museum / Science & Society Picture Library

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