The gravity pendulum and Professor Motonori Matuyama. The Meinesz’s pendulum apparatus placed in the commanding tower of the Japanese submarine “Ro 57”. On the right is Professor Motonori Matuyama, and on the left is Naoichi Kumagai (technical associate at that time). The submarine set sail from Yokosuka naval port in a drizzle on October 17, 1934. The team measured three or four dives a day, 27 times during a total 25 dives crossing the Japan Trench six times.
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{{Information |Description=The gravity pendulum and Professor Motonori Matuyama. The Meinesz’s pendulum apparatus placed in the commanding tower of the Japanese submarine “Ro 57”. On the right is Professor Motonori Matuyam...
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