4 0 c m
28cm
actual image size: 20cm x 32cm
Description
In 1878 Ewing (1855-1935) became Profesor of Engineering in Tokyo and began research on earthquakes and developed a new type of seismometer for measuring and recording them. During WWI he was put in charge of the department of the Admiralty which worked to decipher intercepted mesages.
Image Details
Image Ref.
10301233
© Science Museum / Science & Society Picture Library