D-Day: How a British Oceanographer's Invention Decided Normandy's Fate

Re:D-Day: How a British Oceanographer's Invention Decided No... by btilly on Wednesday June 06, 2018 @05:27PM (#17251267)

Here is a summary.

He built an analog computer that could predict tide levels. They wanted extreme tides so that at low tide the navy could map out the traps the Nazis left, and at high tide they could land lots of troops. It turned out that acceptable tide conditions happened on June 5, 6, and 7.

The actual invasion happened on June 6.

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Re:D-Day: How a British Oceanographer's Invention Decided No... by walshemj on Wednesday June 06, 2018 @08:10PM (#17252221)

They also sent x subs mini 2/3 man subs to drop divers to take samples of the beach surfaces

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Re:D-Day: How a British Oceanographer's Invention Decided No... by ggm on Wednesday June 06, 2018 @09:16PM (#17252495)

They also collected as many postcards, maps, personal photos as they could, to build up photomosiac maps and models of the beaches.

Anthony Beevor talks about a lot of this stuff, as does Carlo D'Este and others. Great reads.

(my mum was an art college student at the time, and amongst other things she was drawing maps. My Aunt was doing technical drawings for the mulberry harbours. Everyone pitched in)

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