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Peter Diehr

Retired physicist/engineer with a background in electrical controls, ultrafast lasers, vegetable farming and sailing. Currently learning quantum computing.

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42 Normandy: Why did the landing craft open on the front? Aug 21 '16
41 Under which conditions does the losing party actively commemorate a battle? Jun 21 '16
29 Why did Lincoln wait to issue the Emancipation Proclamation? Jan 16 '19
23 Was hay invented only in the Middle Ages in Europe? Aug 28 '16
22 US Citizenship Prior to the 14th Amendment Oct 30 '18
20 What happened to rural gas stations in the US? Jul 30 '16
19 How much contact did Sub-Saharan Africa actually have with the rest of the world since the beginning of civilization? Jun 22 '16
19 Has Saudi Arabia ever been invaded? Aug 27 '16
18 How many Iraqi civilians were killed directly by US military action? Aug 12 '16
17 Were there occasions when a sovereign country voluntarily joined another country? Sep 18 '16
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