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Q&A How to make an animal which can only breed for a certain number of generations?

The encoding would need to be in the individuals phenotype and control the expression of individuals gametes on entering sexual maturity. That way when two generational limited animals mate and th...

posted 5y ago by EDL‭

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Q&A How to make an animal which can only breed for a certain number of generations?

Polyploidy. I don't think the telomere approach will work at all. If it did, we would have died out. Or rather, would never have existed. Short telomeres are a normal thing, happens to everybody (...

posted 5y ago by Damon‭

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Q&A Can a galaxy be formed from a black hole?

I'm writing creative text and I'm curious to know, just as possibility, can a galaxy by any chance be formed out of a black hole?

3 answers  ·  posted 4y ago by 01e5Dk‭  ·  last activity 4y ago by 01e5Dk‭

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Q&A Would caves in general be practical lairs for a dragon?

So, I was writing an outline for the battle between a dragon and a bunch of humans. However, a key component of the humans' battle plan was to place a hidden stash of ballistae near the entrance wh...

1 answer  ·  posted 4y ago by Mephistopheles‭  ·  last activity 4y ago by Mephistopheles‭

Question dragons
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Q&A Could my leviathans exist?

Leviathans are closely related to hydrophis spiralis. Some characteristics of these leviathans include: continuing to grow until they die and are able to grow almost as large as a blue whale are ...

1 answer  ·  posted 4y ago by icewar1908‭  ·  last activity 4y ago by icewar1908‭

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Q&A Keratin biosynthesis and human hair straightness/smoothness

Some people straighten their head-hair with what's named: Keratin straightening Keratin smoothening Keratin rebonding Keratin treatment It is an external hair straightening procedure in wh...

1 answer  ·  posted 3y ago by deleted user  ·  last activity 3y ago by Olin Lathrop‭

Question hair
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Q&A Effects of not growing up?

Let's say I have a bunch of pre-pubescent children (circa 8-12 years old). Let's also say I subjected them to some drug/process/whatever that caused them to stop growing. In particular: Whatever...

1 answer  ·  posted 3y ago by Matthew‭  ·  last activity 3y ago by Olin Lathrop‭

Question biology
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Q&A Creatine supplementation as enhancing the natural production of Carnosine and vice versa

I understand that both Creatine and Carnosine are amino acid derivates abundant in Animalia muscle tissue and are both occasionally taken by non-aerobic exercisers to enhance performance. The huma...

1 answer  ·  posted 3y ago by deleted user  ·  last activity 3y ago by Pastychomper‭

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Q&A Making a hair cream without using any lipids/oils

Making a hair cream without using any lipids/oils, is it possible? What will be a fundamental composition of such a cream that it is easy to wash from the hands?

0 answers  ·  posted 3y ago by deleted user  ·  edited 3y ago by deleted user

Question chemsitry cosmetics
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Q&A What needs to be changed about the plate tectonics of my world?

So, after trying to make a few different world maps and not really feeling satisfied with them, I decided to attempt making a world a bit more from scratch, by adding in plate tectonics. Now, I did...

1 answer  ·  posted 4y ago by devendoo‭  ·  last activity 4y ago by devendoo‭

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Q&A Human elytra flying off a cliff

I imagined a person who's scapulae is overly developed and extruding outside the shoulder girdle like an elitra or fixed plane wings. They can be moved by shrugging the shoulders or rotated by rai...

2 answers  ·  posted 2y ago by Rhea‭  ·  last activity 2y ago by dsr‭

Question flight humanoid
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Q&A biologically or anatomically is there a problem with this type of double mouth or jaws?

i am not talking about xenomorph or moray eel type of jaws or multiple mouth or lower jaw inside the mouth. but this type of mouth/jaws or i called it double chin jaws where the chin also work as ...

5 answers  ·  posted 4y ago by Li Jun‭  ·  last activity 4y ago by Li Jun‭

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Q&A What would make a star good for star lifting?

My civilization is planning to being starlifting, mining a star by heating up portions of its surface and using a powerful magnetic field to channel the matter away from the star and into storage u...

4 answers  ·  posted 4y ago by HDE 226868‭  ·  last activity 4y ago by HDE 226868‭

Question stars
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Q&A Is radar better than visible light in deep space?

On the earths surface, radar is pretty sweet. It apparently penetrates the atmosphere well and bounces back and can be detected. I think this has to do with the wavelengths absorbed by our atmosp...

8 answers  ·  posted 4y ago by Willk‭  ·  last activity 4y ago by Willk‭

Question space light
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Q&A How feasible would gliders or the like be on a flat plain, with no cliffs to launch from?

How effective or possible would flying machines that are not powered by a machine be on a flat plain? I have a setting where much of the world is a relatively flat grassland, and the people have n...

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

Question technology
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Q&A Could ocean and wind currents form on a tidally heated body

The moon is similar to earth but orbits around a gas giant, the sun has ended its life cycle and so the only energy received on the moon comes from tidal interactions heating its core. On earth an...

0 answers  ·  posted 4y ago by Samantha Clark‭  ·  last activity 4y ago by Samantha Clark‭

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Q&A Can the color of an alien sky be calculated solely from atmospheric composition and the star's (or stars') spectral type(s)?

What exactly are the relevant numbers for such a calculation, and can it account for the color of the sky? By sky color, I mean the day to day hue that humans (or something else with very similar ...

1 answer  ·  posted 4y ago by John O‭  ·  last activity 4y ago by John O‭

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Q&A Procedurally generating a galaxy's worth of names

Background I am investigating the practical utility and limitations of a procedural-generation-based naming scheme for stars and other notable or significant interstellar structures (e.g. nebulae,...

2 answers  ·  posted 4y ago by rek‭  ·  last activity 4y ago by rek‭

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Q&A How would having multiple moons affect tides?

TLDR You can model the effect of two moons by summing two sine waves. To do this plot each moon as a function of Time and manipulate the gravity of the moon by changing the amplitude and the orbit...

posted 9y ago by Liath‭  ·  last activity 9y ago by Liath‭

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Q&A In space, do "shipping lanes" make sense?

The right constraint Shipping lanes are not a result of a constraint of choice, but a constraint of resource. I could start a shipping company that takes a scenic route from A to B, but it will go...

posted 9y ago by Phil H‭

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Q&A How would having multiple moons affect tides?

It would mean a more complicated modulation of the tides. On earth, we have a superposition of two cycles: An exactly 12 hour cycle of the sun, and a cycle deviating from that by the moon. The moon...

posted 9y ago by celtschk‭

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Q&A How could dragons be explained without magic?

Growing from a very small size to an extremely large size is no problem, as dinosaurs show (and remember, ultimately even the largest dinosaur started as a single cell; the size of the egg is basic...

posted 9y ago by celtschk‭  ·  edited 3y ago by celtschk‭

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Q&A How would having multiple moons affect tides?

Our tide would be affected and so would be light distribution of Earth. What if the Earth had Two Moons? This article appears to be very similiar to what you are talking about. But this is saying...

posted 9y ago by Pobrecita‭

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Q&A How do I figure out how many people my domed city on a hostile planet can support?

There is no real way to give a number here as the city can support however many people you want it to support. The support infrastructure just has to scale up to the size of the population. The mo...

posted 9y ago by Tim B‭  ·  last activity 9y ago by Tim B‭

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Q&A How do I figure out how many people my domed city on a hostile planet can support?

The book at hand is Red Mars. In it we find quite a lot of details of the first cities on Mars, infrastructure (including air), water supply (not recycled), radiation protection, etc. You need to ...

posted 9y ago by Envite‭  ·  last activity 9y ago by Envite‭

Answer