Fred
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2 answers
34 votes
10k views
Why did Roosevelt and Churchill use voice-based telecommunication, instead of simpler text-based options which were easier to encrypt?
Accepted answer
72 votes

During that period, both Churchill and Roosevelt were old men more used to hand written letters than "high technology" teletype writers. Teletype writers are NOISY! Using teletype writers ...

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4 answers
35 votes
6k views
Why weren't pickled fruits and vegetables part of (European) rations during the Age of Sail?
40 votes

One of the reasons why preserved food was not supplied on ships during the age of sail is that preserved food was more expensive than fresh food. Economic as well as nutritional factors motivated the ...

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3 answers
0 votes
1k views
Did the third US atomic bomb disappear without a trace?
16 votes

To begin with, there was no Vice Admiral Allis Zacharias. But there was a Captain Ellis Zacharias who did serve as the deputy director of US naval intelligence. More can be read about Captain Ellis ...

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1 answers
2 votes
274 views
Was smoking allowed aboard hydrogen-filled zeppelins?
Accepted answer
13 votes

Smoking was allowed on the hydrogen filled zeppelin, the Hindenburg, but only in a specially made pressurized smoking room. the smoking room was separated from the rest of the passenger section by a ...

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2 answers
5 votes
261 views
Why would native women of the Russian Far East undergo Orthodox baptism?
8 votes

To some, religion is very import. In an era when opportunities for women were significantly less than those for men, women often had to marry to ensure their own survival. Women had much less ...

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2 answers
-4 votes
236 views
Why did mass production have to wait until the Industrial Revolution?
6 votes

I wouldn't equate the quality of production of an ancient coin to that of a modern or early industrial age coin. I've never seen an ancient coin that was perfectly circular or had crisp clear lines of ...

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1 answers
4 votes
207 views
Why did ancient cultures (e.g. the Mesopotamians) use sexagesimal?
6 votes

In a era when decimal numbers didn't exist, but fractions did, 60 has many factors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 and 60. The factors of 10 are: 1, 2, 5 and 10. When dividing quantities into ...

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1 answers
2 votes
206 views
What was the motivation behind prohibiting hunting in King's forests?
6 votes

Firstly, denying the peasantry the right to hunt was an exercise of power. Secondly, for some kings, hunting was a form of entertainment/activity. The more game for the king the better his chances of ...

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2 answers
0 votes
753 views
Could some of the Titanic passengers have climbed on the iceberg to survive?
6 votes

There would have been problems with people from the Titanic trying to climb on to the iceberg that resulting in the ship sinking. To begin with, ice is slippery and from the picture you linked to, ...

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4 answers
-2 votes
286 views
Why did the steam locomotive take so long?
5 votes

As the adage goes, necessity is the mother of invention. If there isn't a perceived idea, it doesn't get invented. Things get designed to solve a particular problem. There is also the issue of the ...

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6 answers
15 votes
4k views
When and how did the West lose its dependency on the USSR for Titanium?
5 votes

Please clarify what you mean by dependence on USSR/Russian titanium. Do you mean: Titanium minerals which then need to be processed into metal and then into engineered items, Titanium metal which ...

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4 answers
26 votes
2k views
Why did Jodrell Bank assist the Soviet Union to collect data from their spacecraft in the mid 1960's?
4 votes

As can be gathered by the other answers, it's a complex topic. The University of Manchester website gives some extra information. Firstly, the Soviets were probably annoyed that no-one outside of the ...

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3 answers
15 votes
6k views
Has the sun ever set on the British Empire? If so when?
4 votes

The BBC, Encyclopedia Britannica & Wikipedia state that the British Empire finally ended when the British returned Hong Kong to Chinese control in 1997. The setting of the Sun began shortly after ...

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1 answers
-1 votes
77 views
The history of finding longitude
4 votes

The way the system of determining longitude worked, was mariners had to have a clock on board that maintained time accurately. The on-board clock was set to the time of the prime meridian they were ...

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3 answers
2 votes
4k views
What is the earliest written date?
Accepted answer
4 votes

You question is all over the place, it's difficult to understand what you are asking. Based on what you've stated in your question and in comments I am interpreting your question as being “when were ...

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3 answers
16 votes
2k views
What was the device that general Birdwood was using in the "Gallipoli" TV series?
3 votes

One possible explanation is the use of "sound ranging". During World War I, a team of scientists developed a technique called sound ranging which worked using a system of microphones and a ...

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1 answers
-2 votes
226 views
What's the primary theory behind tracks in the stone around the world?
3 votes

I agree with @T.E.D., this may be a natural sciences question & it may be better suited to SE Earth Science. Many of the tracks look like erosion. This can be the result of a weakness in the rock ...

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3 answers
1 votes
1k views
Does the world become more prosperous when divided?
3 votes

Based on that argument, the 57 countries comprising Africa should be more prosperous than they are. The division of Germany into East Germany & West Germany after World War II didn't make East ...

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5 answers
11 votes
890 views
Is the position of women as portrayed in the Mad Men series historically accurate?
2 votes

Even until the late 1960s to mid 1970s in many industries it was generally expected that when a woman married she would leave her job for full time "family life". One of the so called ...

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1 answers
9 votes
686 views
What is the purpose of this Roman siege tactic as shown in this Illustration?
Accepted answer
2 votes

I am imagining the picture is stylized and not drawn to scale. Depending on how close the shield on the ramp was placed to the gates of the city, the shield would do two things: Offer some protection ...

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3 answers
1 votes
337 views
Was the US dollar, the Soviet reserve currency too?
1 votes

Given the Soviet Union & the United States were engaged in a prolonged cold war where each tried to showcase the supremacy their political and economic systems, the two countries were in ...

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2 answers
1 votes
1k views
Could there be frozen animals under Antarctica's ice sheets?
1 votes

Dinosaur fossils have already been found in Antarctica. Fossils of Amphibian and reptiles from the Triassic period, 250-245 million years ago, were found at several sites near the Beardmore and ...

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2 answers
-3 votes
303 views
Why don't/can't the different ethnolinguistic groups of people in erstwhile Yugoslavia get along with each other?
1 votes

It is a complex issue, for which there is no simple answer. Yugoslavia was once described as country with two alphabets (Latin and Cyrillic), three religions (Catholic Christianity, Orthodox ...

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2 answers
3 votes
782 views
Why has Hatutu's population never returned to the island?
1 votes

Being the primary nesting site of a number of endangered species, such as, the Hatutu Marquesan warbler (Acrocephalus mendanae postremus) and the Marquesas ground dove (Gallicolumba rubescens), Hatutu ...

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