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Q&A How do I realistically keep my large mammalian predator hidden from other pack hunters.

Idea 1 Everyone needs water. Your Giant Hyena frequents watering holes and waits for prey to arrive. Maybe it camoflages itself with mud or lurks underneath the surface of the water. Once a target ...

posted 3y ago by Sigma‭  ·  last activity 3y ago by Sigma‭

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Q&A How do I manage memetic infection while time traveling?

How does this time traveler handle the risks of being infected with a contagious idea then spreading it to his fellow humans on return to his own time? He doesn't. Coming back with a revolutionar...

posted 3y ago by Olin Lathrop‭  ·  edited 3y ago by Olin Lathrop‭

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Q&A Can a organism control its metabolism and the heat it's generating?

Yes, it can – they're called “heterotherms”. As with most "can an organism" questions, you only need to look to find some organism that already does this. All hibernating animals (many bears, many...

posted 4y ago by wizzwizz4‭  ·  edited 4y ago by wizzwizz4‭

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Q&A Is it possible to create a beam of non-relativistic neutrinos?

Any mechanism for generating a neutrino beam starts with a way to generate neutrinos, and there is only one underlying means right now: weak decay (including beta decay in radioactive nuclides). Th...

posted 4y ago by dmckee‭  ·  edited 4y ago by dmckee‭

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Q&A Why buy tech from the future?

No way would I buy that thing. ...ok so the details really do depend on exactly what it does. 1% of my revenue for 10 gizmos? And I'm the CEO of Intel? Intel made between 10 and 100 billion dollar...

posted 3y ago by Jordan‭

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Q&A How do you establish identity when people can change their appearance at will?

One obvious answer is RFID tag microchip implants, for example attached to the ear at birth, at the same time as someone is given their personal credentials. The body can change but the chip will r...

posted 3y ago by Lundin‭

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Q&A Why would a race constantly deafened by ambient noises still hear?

Because they haven't yet evolved enough to lose their sense of hearing.

posted 3y ago by msh210‭

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Q&A What would the sky view be like of a final stage massive merged galaxy?

Cox & Loeb 2008 performed one of the few simulations of the Milky Way/Andromeda collision of which I'm aware. It's not particularly easy to simulate a galactic merger, so the lack of detailed n...

posted 4y ago by HDE 226868‭

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Q&A How long would a planet that losses its gravity take to break up?

The planet will instantaneously explode. The Earth has a gravitational binding potential of about $2.25\times10^{32}$ joules, or the weekly energy output of the Sun. This energy also currently be...

posted 4y ago by Whitecold‭  ·  edited 4y ago by HDE 226868‭

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Q&A An alternative way to rotate or in this case rolltate

Yes, for a given definition of 'North Pole'. You see, there are three different 'North Pole's Geographic North Pole, which is defined as 'the point in the Northern Hemisphere where the Earth's a...

posted 4y ago by Chronocidal‭  ·  last activity 4y ago by Chronocidal‭

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Q&A Do seasons occur on a tidally-locked planet?

Yes, if the orbit isn't circular. Seasons can definitely occur on a tidally locked planet. Just like normal planets, tidally-locked planets don't need to have perfectly circular orbits. This mean...

posted 4y ago by HDE 226868‭  ·  edited 4y ago by HDE 226868‭

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Q&A How large would be the habitable area in a tidally locked planet?

Tidally Locked and no Axial rotation are not quite the same thing. A planet with no axial rotation would not have a habitable zone. No rotation means that it will experience a day/night cycle as ...

posted 4y ago by Nosajimiki - Reinstate Monica‭  ·  last activity 4y ago by Nosajimiki - Reinstate Monica‭

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Q&A What impact is required for a visible (from Earth) ejecta plume on Earth's Moon, and would the Moon survive?

How small of a thing can we see on the moon? Wikipedia has a list of objects on the moon that can be visible with unaided vision. Doing some poking around Astronomy blogs for real-life experience ...

posted 7y ago by kingledion‭  ·  last activity 7y ago by kingledion‭

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Q&A Exploration of a 50 mile high mountain

TL;DR You'll see the development of both aerial vehicles and the means to survive in harsh spaces. Technology will develope faster in this world - at least, technology related to this mountain. A...

posted 6y ago by HDE 226868‭  ·  last activity 6y ago by HDE 226868‭

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Rigorous Science What would one experience travelling through an invisible Krasnikov tube, and how much could they be used to cut travel times?

Effectively what the title says; What would different observers experience while travelling through / seeing one travel through the tube, and how could they be used to cut travel times? (Just answe...

1 answer  ·  posted 4y ago by MrKred‭  ·  last activity 3y ago by wizzwizz4‭

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Rigorous Science Do plants need ambient oxygen?

Yes. All plants require free oxygen, and any (part of a) plant that is not actively photosynthesising has to obtain its oxygen from its environment. We owe our oxygen supply to the fact that, on a...

posted 1y ago by Pastychomper‭  ·  edited 1y ago by trichoplax‭

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Rigorous Science Modelling a monstrous transformation - generalized logistic function fitting.

I'm spitballing a story where the main character goes through a monstrous transformation. Part of the conceit / my enjoyment is that she's an oncology researcher and will be tracking the transform...

0 answers  ·  posted 8mo ago by pureferret ‭  ·  edited 6mo ago by trichoplax‭

Question mathematics
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Rigorous Science Can pion production effectively shorten the lifetime of neutrons?

The known charge-conserving decay modes of free neutrons all involve the production of a proton, an electron and an electron antineutrino: $$n\to p^++e^-+\bar{\nu}_{e}$$ This beta decay is why, out...

1 answer  ·  posted 4y ago by HDE 226868‭  ·  edited 4y ago by HDE 226868‭

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Rigorous Science What would it take to build a ship capable of crossing the Pacific? [duplicate]

In my story, I have a small extended family of 30 to 40 individuals ranging in age from 0 to 50 who are on the run from Chinese and Japanese forces in 1400AD. No place in Asia is safe for them. By...

0 answers  ·  posted 3y ago by Green‭  ·  closed as duplicate 3y ago by Canina‭

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Rigorous Science Difference between 'AWPP' and standard quantum physics

Quantum Computers are considered a more powerful type of computer than so called 'classical' computers. While a typical classical computer could be considered as a black box that can solve Polynomi...

0 answers  ·  posted 3y ago by Mithrandir24601‭

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Q&A Does the sun being blocked affect electricity?

Atmospheric dust by itself shouldn't have any major impact on generation or distribution of electricity. The two are unrelated. However, a fraction of the Earth's electricity production is based o...

posted 9y ago by Canina‭  ·  last activity 8y ago by Canina‭

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Q&A How to go from a free person to a slave

It's different for every person. There won't be any guaranteed method that operates on human psychology (without magic). If you keep them for long enough then one effect might be Stockholm Syndro...

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

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Q&A How Would the Sport of Wrestling Change in a Microgravity Environment?

How would competitive wrestling change in a microgravity environment?

2 answers  ·  posted 1y ago by James McLellan‭  ·  last activity 1y ago by trichoplax‭

Question physics sports
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Q&A What Factors Could Cause a World to See "Northern" Lights Much Closer to the Equator?

On Earth, solar flares can lead to displays of the aurora that are both more spectacular and visible farther south. Flares in September 2014 led to the aurora being visible in Maine, which is arou...

posted 9y ago by Monica Cellio‭

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Q&A Are geographically typed planets realistic?

I'm going to take one of your examples here: the desert planet. Is that realistic and plausible? It turns out that it is realistic. Wikipedia describes a desert thusly: A desert is a barren area...

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

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