Questions tagged [sea-exploration]

For questions in which an ocean is explored for varying purposes.

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22
votes
12answers
4k views

Is it possible for a large pre-electricity empire to stay in touch?

Background Information In my world, there is one spherical world that is 2,000,000 miles in diameter and has the same land-to-sea ratio as the earth. On this world , there is a civilization of elves ...
13
votes
10answers
4k views

If this earth were cube shaped would it be possible during Magellanic era using a float ship to figure out that the earth is cube shaped?

If this earth were cubed shape would it be possible for Magellan to prove that the earth is cube-shaped without going to space and looking at earth? It might seem strange to think that earth might be ...
8
votes
2answers
138 views

How quickly could a Norse longboat get from Denmark to “Vinland” (Newfoundland) and beyond?

Alright, departing from my usual fantasy setting to something of a thought experiment. Let's say, for argument's sake, some Dane longboat captain in the 10th or 11th century worked out how to make a ...
8
votes
4answers
317 views

A Permanent Norse Presence in America, Part II: How Would Europe React to This?

Previously, I had asked a question on what point of departure I would need to make the Norse's presence in North America permanent. Perhaps the best answer I got was summarized right here: If one ...
7
votes
3answers
1k views

How Would A Group of Undersea Explorers Survive if Their Food Supply Ran Out?

In my book series, a group of a few hundred explorers are sent from a planet called Ishgabangaloodoo to explore Sea World. Some things to know about Ishgabangaloodoo: Its citizens are referred to as ...
7
votes
6answers
341 views

How to hinder the development of sea travel until the industrial age?

Instead of Earth as we know it, humans evolved on a slightly smaller, habitable earthlike planet with different geography. Due to the plot reasons, I would like to keep them confined to one (large) ...
6
votes
4answers
597 views

Sea Travel Variables

Basically, I am looking for variables in travel for the same ocean or sea journey, along the coast, but in the opposite direction. No motors, just standard 15th century ships. I am building a world ...
5
votes
2answers
353 views

Could a bathyscaphe able to reach the Mariana Trench be first made in the nineteenth century?

In the book "The Morning of the Magicians" the Belgian writer Louis Pauwels says that nothing prevented the bathyscaphe (that was designed by Auguste Piccard after World War Two) to be made in the ...
5
votes
4answers
101 views

How to identify sapient jellyfish?

There is a sapient jellyfish species resembling the box jellyfish found to be lurking in the ocean today. A team of researchers took a sub and dived into the abyss to look for it. What kind of non-...
4
votes
3answers
470 views

Colony Ship … Ship

In my world the human race exists on an infinite plane; 250,000 years of history conspire; things happen; and BOOM: a modern empire that controls what it though to be the "world" embarks on a new age ...
2
votes
3answers
179 views

Likelihood of a large magnetic island remaining undetected until the early 20th century

In Edgar Rice Burroughs' The Land That Time Forgot, the crew of a captured German U-Boat discovers a large island in polar waters somewhere between South America and New Zealand called Caspak. Among ...
2
votes
2answers
243 views

How much area of a gigantic world could an 18th century maritime civilization explore in a millennium? [closed]

In my world, there is one spherical world that is 2,000,000 light-years in Diameter. The world also has the same land-to-sea ratio as the earth. On this world , there is a civilization of elves ...
1
vote
5answers
180 views

Excavating Doggerland by floating a giant concrete bottomless box/boat, dropping it to the floor and draining. What are the main challenges? [closed]

The sea level was once 100m+ lower, rising to todays levels between 18000 and 5500BC. Recent evidence suggests the area in the North Sea, once landmass we now call Doggerland, was densely populated, ...