
3 4 c m
40cm
actual image size: 32cm x 26cm
Description
Automatic transmision is an alternative to the manually controlled gearbox on a motor vehicle. The gear ratio is adjusted automatically to conditions of speed, acceleration, and gradient, rather than requiring a clutch to be engaged as with a manual gearbox.
Image Details
Image Ref.
10217576
© Science Museum / Science & Society Picture Library