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Posts by Ash‭

24 posts
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Q&A Restricting antimatter - practical rather than legal measures

Antimatter is relatively easy, but heinously expensive, to make using modern technology. I have two universes with the same problem; energy is free and for all practical purposes infinite, this sho...

11 answers  ·  posted 6y ago by Ash‭  ·  last activity 6y ago by Ash‭

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Rigorous Science Life on the Broken Ring - an issue of size

One of my ongoing projects is what I think of as the "constructed worlds gallery", a series of Megastructures as settings for stories and games, including things like the "Flying Pie-plate" a world...

4 answers  ·  posted 5y ago by Ash‭  ·  last activity 5y ago by Ash‭

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Rigorous Science Of strange atmospheres - the survivable but unbreathable

Most gases that are toxic to breathe also do nasty things to the skin when they're in the atmosphere at dangerous concentrations - and one is walking around without sealed protective clothing; sulf...

8 answers  ·  posted 5y ago by Ash‭  ·  last activity 5y ago by Ash‭

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Rigorous Science Diamond as a building material

So lots of Sci-fi works use mono-crystalline diamond as a wonder material used to build all sorts of impressive and in some cases seemingly impossible structures, I'd like to ask about the science ...

2 answers  ·  posted 7y ago by Ash‭  ·  last activity 7y ago by Ash‭

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Rigorous Science Contamination of orbital warehouses

So I'm thinking about orbital warehousing of raw materials but I'm wondering whether one would actually need an orbital structure to store the goods inside or could you just strap a booster to the ...

2 answers  ·  posted 7y ago by Ash‭  ·  last activity 7y ago by Ash‭

Question space earth
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Q&A Wings for orbital transfer bioships? - The ascent

I've been looking at the altitude boosted SSTO designs from the 90s that were designed to be lifted to launch altitude by modified jetliners and thinking about bumblebees and wondering if bioships ...

2 answers  ·  posted 5y ago by Ash‭  ·  last activity 5y ago by Ash‭

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Q&A Macro-life, colonisation or continuation?

Larry Niven defines a macro-life civilisation as one that lives in interstellar spacecraft, independent of planetary resources and culture, full time and by implication keeps moving. This could mea...

8 answers  ·  posted 6y ago by Ash‭  ·  last activity 6y ago by Ash‭

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Q&A Could a new species wipe out the rest of an established ecosystem?

I'm not asking about an exotic species in the modern world we know all too well the havoc that can be caused by the introduction of an alien species into an existing ecosystem. I want to know if a ...

4 answers  ·  posted 6y ago by Ash‭  ·  last activity 6y ago by Ash‭

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Q&A Long-term effects of leaving everything you know - the aging issue

My current ongoing science fiction project has FTL travel that is instantaneous for the ships and their crews, but still, usually, takes years of real-time in the rest of the universe. This is goin...

2 answers  ·  posted 6y ago by Ash‭  ·  last activity 6y ago by Ash‭

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Q&A If we can have "all the comforts of home" in space why would we settle planets?

This is something that is starting to bug me, I'm creating a universe in which space travel is cheap and comfortable and space habitats can be built roomy enough that no-one actually needs to live ...

21 answers  ·  posted 6y ago by Ash‭  ·  last activity 6y ago by Ash‭

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Q&A Quick solutions to a modern warning placed on the surface of a planet for future generations

In response to Write once perpetual storage, is such a thing possible? Separatrix pointed me at How could an ancient race warn the future in a universally understandable way? and How might modern h...

7 answers  ·  posted 6y ago by Ash‭  ·  last activity 6y ago by Ash‭

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Q&A Write once perpetual storage, is such a thing possible?

Is it possible, with modern, or easily foreseeable technology, to build a compact digital data storage device that cannot be erased without removing the data store? The storage in question to be us...

10 answers  ·  posted 6y ago by Ash‭  ·  last activity 6y ago by Ash‭

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Q&A Human response to an existential threat that isn't

This is possibly not quite the right place to ask this question but it's fundamental to the world I'm working on so here it is; if faced with a potent existential threat, in the form of an outside ...

7 answers  ·  posted 7y ago by Ash‭  ·  last activity 7y ago by Ash‭

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Q&A The worlds between, the consequences of instantaneous FTL

For some time I've been working on a universe with non-instantaneous Faster-Than-Light travel, but I've decided to open a new universe with instantaneous travel. So I'm working on the differences t...

13 answers  ·  posted 6y ago by Ash‭  ·  last activity 6y ago by Ash‭

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Q&A A brighter moon that's harder to see

In honour of the full moon an odd moon question for you all. The idea is to create a situation in which the inhabitants of a world believe utterly that the moon only exists at night. I'd also like...

4 answers  ·  posted 6y ago by Ash‭  ·  last activity 6y ago by Ash‭

Question planets moons
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Q&A How flat is "Flat Space"?

The idea of "Flat Space", an area of space-time with minimal, preferably zero, gravitational curvature, is an important concept in many Sci-fi universes, often those with "jump-drive" based FTL tra...

3 answers  ·  posted 6y ago by Ash‭  ·  last activity 6y ago by Ash‭

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Q&A Could a sedentary organism develop intelligence, or even sentience?

Similar to Could Plants Develop Sentience? but slightly more general: I'm not interested in plants in particular, but want a more general understanding of the effect of motion on intelligence and v...

17 answers  ·  posted 7y ago by Ash‭  ·  last activity 7y ago by Ash‭

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Q&A How short can Milankovitch Cycles be on a world with a stable orbit?

Okay so there's a project I've been thinking about for a long time wherein humans colonise a world where the climate appears warm and benign only to discover that the local climate oscillates from ...

7 answers  ·  posted 7y ago by Ash‭  ·  last activity 7y ago by Ash‭

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Q&A Signal language, how long can we stay in touch?

I'm working on a universe where FTL exists but arrival times can be unpredictable to say the least. On average FTL trips are conducted at 4C but ships can take much longer to arrive than that speed...

6 answers  ·  posted 7y ago by Ash‭  ·  last activity 7y ago by Ash‭

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Q&A So we glassed it, now what?

"Glassing" a planet is a common ultimate tactic in Science Fiction, basically it consists in using high power energy weapons to destroy all life on the planet and reducing the soil and rock of the ...

3 answers  ·  posted 7y ago by Ash‭  ·  last activity 7y ago by Ash‭

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Q&A Gravitational flatness, the topography of Lagrange "points"

Just how gravitationally flat are real Lagrange Points? Many classic "jump drives" require "flat space" in order to fire, the classic diagram of Lagrange Points as shown below suggests ridges or pl...

1 answer  ·  posted 7y ago by Ash‭  ·  last activity 6y ago by Ash‭

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Q&A Hulls and hard suits, what actually has heavier armour in space?

I may not have been paying as much attention as perhaps I could but I have the impression that, in fiction and reality, most civilian space habitats, whether ships or stations use a relatively thic...

3 answers  ·  posted 7y ago by Ash‭  ·  last activity 7y ago by Ash‭

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Q&A How deep could we bury the world in artifice?

I've been reading a few books lately, principally the Warhammer 40,000 descriptions of Earth and the Night's Dawn Trilogy, and it's got me wondering just how far down we could bury a planet under a...

5 answers  ·  posted 7y ago by Ash‭  ·  last activity 7y ago by Ash‭

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Q&A Could coral float?

I've been thinking about worlds like Keplar-62e, thought to be covered in deep oceans, and wondering about floating reefs. Could a bio-structure substantially similar to terrestrial coral hold eno...

3 answers  ·  posted 7y ago by Ash‭  ·  last activity 5y ago by Ash‭