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Peter Diehr's user avatar
Peter Diehr's user avatar
Peter Diehr's user avatar
Peter Diehr
  • Member for 6 years, 6 months
  • Last seen more than 2 years ago
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72
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3
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About

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

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30
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27
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Top posts
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All Questions Answers
Score Newest
answer
44
Normandy: Why did the landing craft open on the front?
Aug 21, 2016
answer
41
Under which conditions does the losing party actively commemorate a battle?
Jun 21, 2016
answer
29
Why did Lincoln wait to issue the Emancipation Proclamation?
Jan 16, 2019
answer
23
Was hay invented only in the Middle Ages in Europe?
Aug 28, 2016
answer
22
US Citizenship Prior to the 14th Amendment
Oct 30, 2018
answer
20
What happened to rural gas stations in the US?
Jul 30, 2016
answer
19
How much contact did Sub-Saharan Africa actually have with the rest of the world since the beginning of civilization?
Jun 22, 2016
answer
19
Has Saudi Arabia ever been invaded?
Aug 27, 2016
answer
18
How many Iraqi civilians were killed directly by US military action?
Aug 12, 2016
answer
17
Were there occasions when a sovereign country voluntarily joined another country?
Sep 18, 2016
Top Meta posts
2
0
8
Should answerable Questions be closed as off-topic?
3
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Top network posts
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42
Why are LIGO's beam tubes so wide?
36
Is there any truth to interpreting definition of a second as corresponding to oscillations?
17
What makes a wave dispersive?
9
What was Newton's own explanation of Newton's rings?
9
How can muons travel faster than light through ice?

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