Questions tagged [sea]

For questions specifically about a sea, which means an area of water within an ocean.

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38
votes
12answers
71k views

Using international waters to avoid legal punishment

I am playing with the idea of a lateral thinking puzzle based around abusing international waters to make an action 'legal'. For the sake of this question lets assume someone from the US is looking ...
15
votes
1answer
938 views

Creating a realistic world - Thermohaline circulation

One crucial aspect of the climates have been left out so far, deep water circulation. It's the major force driving the heat transfer form the equator to the poles and its flow can influences local ...
11
votes
2answers
1k views

What would happen at the core of a water world?

If there existed a planet that was made completely of liquid water, no solid matter at all, what would the core of such a planet be like? Let's assume that this planet has conditions similar to earth, ...
23
votes
4answers
7k views

What if the seas had fresh water in them?

In a future world, where there is almost no fresh water resources left, a radical scientist comes up with an idea to turn all the oceans into fresh water. The general idea is to be able to ...
27
votes
7answers
8k views

What if the ocean's salt level decreased by 50%?

What would happen to the fish/animals living in the ocean, if the water became 50% less salty, within the space of three months? Would everything die, or would they evolve very quickly? Related: What ...
33
votes
22answers
6k views

What could cause humanity to migrate from land to water?

I'm constructing a world where the humanity had to migrate from land to water somewhere in antiquity. In this world, humans are living on seas and rivers. They live both on pier-like and other fixed ...
7
votes
1answer
367 views

Can I have a beach of pearls?

Far south-west of the main continent exists an island in a shape of crescent moon with dense jungles and slender mountain peaks and a single city named Kalt stands in a place where the islands' ...
5
votes
2answers
298 views

How big of a tidal wave could 2 binary planets create

So I'm working on a story based on a binary system involving two Earth sized, Earth like worlds with very eccentric orbits. In the story, one of the major coastal cities is protected by a massive ...
4
votes
1answer
393 views

What would happen to the ocean when lowering atmospheric density?

Suppose one fine day a mischievous god decided to eradicate all air molecules on Earth in an instant, my question is what will hapen to the ocean? Please kindly disregard (omit) your concern for life ...
6
votes
4answers
601 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 ...
4
votes
3answers
397 views

What would be the consequences of humanity migrating from land to water?

I'm constructing a world where the humanity had to migrate from land to water somewhere in antiquity. In this world, humans are living on seas and rivers. They live both on pier-like and other fixed ...
6
votes
1answer
113 views

Ecological implications of osmotic portals

Suppose some magical civilization on Earth-like planet can create portals. Any given portal entrances are spherical surfaces of the same radius. Any particle enters one sphere and exits another in the ...
1
vote
2answers
241 views

Edestus Gigantus In modern oceans

What are the effects of introducing 2600 sharks of the primitive Edestus Gigantus specie* in modern waters in different places on earth? Will they survive, how ? for how long? can they destroy the ...
1
vote
1answer
215 views

How does a herbivorous mermaid species without gills and swim bladder stay underwater its entire life?

Fish breathe through their gills by extracting dissolved oxygen from the surrounding water and most bony fish species have evolved swim bladder to help them maneuver the sea effortlessly. How do the ...