I still have my dad's 1930s Keufel and Esser slide rule - even figured out how to use it. Amazing to think that the Apollo moon landing project was mostly done on slide rules!
On a different tack, 70 years ago today (August 14), there was very nearly a coup in Japan. Some military leaders didn't want Japan to surrender (which the Emperor had already approved, and recorded the "surrender" speech to be broadcast on August 15).
The coup failed as the participants tried to take over the Emperor's palace and cut outside communications. They desperately tried to find the Emperor's speech recording, but it had been hidden in a pile of laundry, and was successfully delivered to NHK broadcasting on August 15. That broadcast was heard by the Allies, and is considered the unofficial "end" of World War Two.
The Japanese civilian and military surrender didn't take place until September 2 (USS Missouri). And the actual end of the Pacific war is often recognized as the signing of the Treaty of San Francisco, September 8, 1951, taking effect April 28, 1952.
Tom M.
details, details