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Q&A Colony on the moon - how fast can Santa deliver?

I sometimes tell my kid that when he grows up, he might be living on the moon. Last night he was worried that Santa won't be able to bring him presents there. To which I replied that sure, Santa ca...

7 answers  ·  posted 7y ago by Nahshon paz‭  ·  last activity 7y ago by Nahshon paz‭

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Q&A Are all combinations of right-handed and left-handed amino acids and sugars equally likely?

I'm designing planets for a hard (ish) science fiction RPG setting. So I want to find out if there are any clues or theories as to what proportion of planets with life will have the basic biochemis...

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

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Q&A How do solar eclipse(s) work(s) in a binary stars system?

Say a terrestrial planet is orbiting two stars as if they're a single gravitational well.(I haven't worked out the distance yet as I still on the phone...) I don't need the planet to be habitable b...

2 answers  ·  posted 7y ago by user6760‭  ·  last activity 7y ago by user6760‭

Question planets stars
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Q&A How could the sky be orange in a breathable atmosphere?

I've discovered some ways of coloring the atmosphere through personal research: The atmosphere could be colored by particles or colored gases (as on Mars, unless I'm wrong) The atmosphere could b...

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

Question atmosphere physics
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Q&A How can a sentient supercomputer create human beings?

So this sentient supercomputer is lonely. It wants to create human beings. It created many things but creating a human being is at the top of its list. And it is super determined to figure out what...

3 answers  ·  posted 7y ago by Gabriel Perez‭  ·  last activity 7y ago by Gabriel Perez‭

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Q&A If Homo Sapiens Had Four Receptors

Today, most mammals have dichromatic vision, meaning that they have two color receptors. Which color depends on which species you're asking. For example, the real reason bulls charge at matadors ...

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

Question biology
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Q&A What should be adjusted for old Earth-like planet?

For story reasons, I'd like one planet habitable, plausible, but in some noticeable way older than Earth. Just not all planets are 4,5 bilion years. Tidally locked planet that orbit red dwarf, save...

1 answer  ·  posted 7y ago by Shadow1024‭  ·  last activity 7y ago by Shadow1024‭

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Q&A What are the considerations for waterproofing a building's first few floors?

My city's founders had the short-sightedness to place it on the coast. Now, for mysterious reasons, the sea level is rising. The municipal government has decided that building dikes is "too Dutch" ...

8 answers  ·  posted 7y ago by SPavel‭  ·  last activity 7y ago by SPavel‭

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Q&A Little Green EARTH Men?

This question is based on the articles saying that the Mongoloid body plan was all due to an individual mutation from 35,000 years ago. In science fiction, humanoid aliens that aren't of the human...

4 answers  ·  posted 7y ago by JohnWDailey‭  ·  last activity 6y ago by JohnWDailey‭

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Q&A Bones for synthetic life

Supposing that we can create an entire synthetic being, what material would be best to make its bones of attending to: Weight Strength Durability Reparability Let's set some scenarios: Case 1...

4 answers  ·  posted 7y ago by Westside Tony‭  ·  last activity 7y ago by Westside Tony‭

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Q&A The Red Skin Gene

In one of my more recent questions, one Xandar The Zenon commented that a mutation that creates the gene for red or orange pigmentation on the human skin is more likely than green, blue or purple. ...

1 answer  ·  posted 7y ago by JohnWDailey‭  ·  last activity 7y ago by JohnWDailey‭

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Q&A How to explain fire-breathing feathery dragon extreme mating behavior?

I'm going to borrow many ideas from birds to keep my dragon airborne, porous bones and feathers to keep it light while spewing balls of flame to create warm air currents at high altitudes. The prob...

2 answers  ·  posted 7y ago by user6760‭  ·  last activity 7y ago by user6760‭

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Q&A Water On A World That Is Flat?

For my fantasy world, I have what I think is a really cool idea. The world is flat, and elliptical in shape. If you touch the silvery edge, well, let's just say bad things will happen. (Not relevan...

1 answer  ·  posted 7y ago by Xandar The Zenon‭  ·  last activity 7y ago by Xandar The Zenon‭

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Q&A Dragon development

My dragons all develop in similar ways. There are 4 developmental cases depending on what limbs the dragon has. First case: All limbs If the dragon has all 4 limbs here is how it develops. First,...

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

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Q&A What warning labels could you see on products to be used in space?

Nowadays there are warning labels on most everything: this is flammable, that will cause injury because it's sharp, this substance is poisonous, and that canister is under pressure, but what types ...

7 answers  ·  posted 7y ago by Jesse Cohoon‭  ·  last activity 7y ago by Jesse Cohoon‭

Question space
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Q&A Death-Breathing Dragon

I recently learned about a chemical known as chlorine trifluoride. This utter abomination of chemistry reacts to almost everything, setting glass, sand, asbestos, and rust on fire (to name only a f...

1 answer  ·  posted 7y ago by Lepidolite Mica‭  ·  last activity 7y ago by Lepidolite Mica‭

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Q&A Humans Achieve Massive Increase In Average IQs -- But How?

The Average Human Achieves IQ Scores 60 Standard Deviations Above The Average Person of 2016 By the time the year 3016 rolls around, the human race for the first time ever has achieved an average ...

7 answers  ·  posted 7y ago by Thom Blair III‭  ·  last activity 6y ago by Thom Blair III‭

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Q&A Would a shallow ocean planet be possible?

For a story I am writing, I need a planet covered in a shallow ocean. What I mean is that I want the majority of the planet's surface (=> 60%) to be in the photic zone of the ocean. This planet...

3 answers  ·  posted 7y ago by Xandar The Zenon‭  ·  last activity 5y ago by Xandar The Zenon‭

Question environment planets
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Q&A Solving the vulnerabilities of a plant-based life-form's civilization: sunlight, roots, and hibernation

Say you are a plant-based life-form (imagine a walking tree). You have roots and leaves. You have two main vulnerabilities: You need sunlight on your leaves for photosynthesis to get energy. Y...

3 answers  ·  posted 7y ago by Inbar Rose‭  ·  last activity 6y ago by Inbar Rose‭

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Q&A How would people living in eternal day learn that stars exist?

In a world I am building, the day lasts longer than the year, 9 times longer in fact. The native people of this world have been forced to migrate around the world, both avoiding the scorching deser...

14 answers  ·  posted 7y ago by Uncle Tres‭  ·  last activity 7y ago by Uncle Tres‭

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Q&A How can I keep the computers on my spaceship from temperature related death after a hull breach?

Spaceships are a peculiar thing. We've got them in all forms, sizes & colours. They have vast computers needed to do all the real-time calculations required for astrogation. Assuming our compu...

19 answers  ·  posted 7y ago by dot_Sp0T‭  ·  last activity 7y ago by dot_Sp0T‭

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Q&A What is the highest pressure humans can live in in comfort?

These people inhabit an underwater city. In the city there are pools that connect the dry habitat with the outside ocean, this of course mean that the habitat is unpressurized and therefore the in...

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

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Q&A What are alternative particles to photons that would allow vision?

I swear I saw this question elsewhere. Let me know if this is a dupe. Photons are great. They're little bundles of energy that Reflect off of nearly everything, allowing us to see faraway obj...

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

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Q&A How many calories must Santa's Reindeer consume?

Santa's reindeer are pretty awesome. They can stand on arbitrary planes (giving the illusion of flight, the reindeer are actually running on n-dimensional hills) and can dilate time in a bubble aro...

2 answers  ·  posted 7y ago by Joe Bloggs‭  ·  last activity 6y ago by Joe Bloggs‭

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Q&A Mining Suns For Terraforming?

In my story, I have a fairly advanced human race who is at the point they want to start terraforming planets. Of course, all of the materials necessary have to come from somewhere, and the proposed...

6 answers  ·  posted 7y ago by Xandar The Zenon‭  ·  last activity 6y ago by Xandar The Zenon‭