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How would fantasy sea monsters fare, up against modern technology?

Without any form of serious Intelligence - Even something like a Kraken would get absolutely mauled by anything from WW2 onwards You said in your blurb that for Biology, we are simply scaling up ...
TheDemonLord's user avatar
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0 votes

How would fantasy sea monsters fare, up against modern technology?

It depends on what they attack... While marine life can be detected with sonar, the range is rather limited. Submarine warfare relies more on listening passively to the sounds made by enemy ship ...
Nosajimiki's user avatar
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0 votes

How would fantasy sea monsters fare, up against modern technology?

I think an answer is possible without going into details for the monsters. Fishing craft use active sonar to detect shoals of fish. Detecting a few bigger ones that way should be practical. Likewise, ...
o.m.'s user avatar
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1 vote

How would fantasy sea monsters fare, up against modern technology?

They have no chance. Note that simple harpoon gun can kill the whales since centuries. That is an ak-47 shot to a cow bone (larger as ours). And these are yet nothing more advanced, like torpedoes, ...
Gray Sheep's user avatar
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0 votes

Without taxes, who pays for roads/highways?

It depends. If it’s a form of voluntary government in ancient times, like sort of a free city state… main roads would be built by the army in order to mobilize troops, and supply chains. Another way ...
Tryclops's user avatar
3 votes

Would it be biologically possible to have a species that use a photochromic material instead of an iris to control light intensity?

While no known organisms use photochromic materials in their eyes, certain creatures exhibit related phenomena. For instance, cuttlefish can change the color and pattern of their skin using ...
Rhymehouse's user avatar
  • 4,525
11 votes

What color would the sky be in a multi-star system?

Blue, Rayleigh Scattering is a function, primarily, of depth of atmosphere. There are a few gases, notably the various sulfur oxides, that can tint the atmosphere in high enough concentrations but ...
Ash's user avatar
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-1 votes

Without taxes, who pays for roads/highways?

Internal Governments As Thomas Hobbes pointed out, complete anarchy is unsustainable. People value their personal autonomy, but they don't like when other people use their personal autonomy to screw ...
In Hoc Signo's user avatar
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3 votes

Is it possible for plant life to evolve (and adapt) on a low CO2 planet?

One possible solution for too low carbon-dioxide in the atmosphere has been proposed in one of the earliest worldbuilding project, the Epona project. Epona is a hypothetical planet around the star 82 ...
Christmas Snow's user avatar
1 vote

Is it possible for plant life to evolve (and adapt) on a low CO2 planet?

I would say, think of it from a different perspective. If you think of plant life in terms of Earth like plants, then these plants would probably would not adapt well. Plants that evolved on this ...
Sonvar's user avatar
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3 votes

Is it possible for plant life to evolve (and adapt) on a low CO2 planet?

I would suggest that plants, as in photosynthetic, carbon fixing, primary producers could well survive with such a low atmospheric CO2. I would suggest that their populations are going to be ...
Ash's user avatar
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8 votes

The Lost Continents of Atlantis and Mu reappear: Disruption to Transport

Answer: minimal disruption in the south, huge disruption in the north. The appearance of a new continent in the North Atlantic would disrupt the busiest sea lane routes in the world i.e North America ...
Mon's user avatar
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0 votes

Viability of laser cooling a person (trying to create a freeze ray)?

What about sound or micro waves? The difficulty with electromagnetic radiation is permeation. Ultraviolet and above permeates well, but it's ionizing so you will destroy your targets DNA. The visual ...
JustAnotherUser's user avatar
2 votes
Accepted

Would human-shaped sperm cells work?

One of the major concerns I have is what exactly you mean by "appendages". Single cellular organisms primarily move using either flagella, longer whip-like tails, or cilia, smaller, numerous ...
thinkcritically's user avatar
5 votes

How would I calculate the damage someone suffered from various strikes?

You can estimate the force by knowing the mass M of your object, sword in this case, its velocity v and the time it takes to stop after it hits, you can use the relationship $M\Delta v=F\Delta t$ By ...
L.Dutch's user avatar
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3 votes

Would human-shaped sperm cells work?

Sure, sperm like this could work. The head would be the nucleus, the body would contain the mitochondria, and the arms and legs would be flagella. However, such a sperm with four flagella would use ...
Monty Wild's user avatar
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9 votes

Would human-shaped sperm cells work?

I haven't found any indications of human-shaped sperm cells being unviable or impossible Evolution doesn't write papers to document why certain things do not work. If every single species using ...
L.Dutch's user avatar
  • 292k
2 votes
Accepted

What factors can I use determine if my runaway greenhouse planet will have a thick water vapour atmosphere?

Not likely because water does not remain water when the planet gets that hot Your molten surface means you have to achieve a surface temperature in excess of 1200°C. In isolation, water doesn't break ...
Nosajimiki's user avatar
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3 votes

What factors can I use determine if my runaway greenhouse planet will have a thick water vapour atmosphere?

The two main factors of your planet are: Gravity Magnetosphere I would consider the greatest threat to your water to be solar winds. If your planet has a strong magnetosphere, then that problem is ...
JustAnotherUser's user avatar
3 votes

Natural mechanism behind burning oceans

What about St. Elmo's Fire? Ok, it's not actual fire, it's plasma. but it's close enough. https://physics.stackexchange.com/questions/23469/is-fire-plasma These coronal ejections are generated by ...
JustAnotherUser's user avatar
2 votes

Natural mechanism behind burning oceans

@AndersMartini's answer got me thinking... and I upvoted Ander's answer because FOOF is a whale of a good idea because there's so much crisis that can be rationalized due to it. It's a great idea... ...
JBH's user avatar
  • 127k
9 votes
Accepted

Natural mechanism behind burning oceans

You've gotten some pretty good answers here, and many of them point out various problems with your requirements. I'm gonna try and take an alternative approach, which will lead to different problems ...
Anders Martini's user avatar
10 votes

Natural mechanism behind burning oceans

Let's begin with a Frame Challenge Massive patches of ocean. Millions of years. Small to massive walls of fire. Inhabitable planet. When you look at plausible sources of fuel (oil, methane/natural ...
JBH's user avatar
  • 127k
6 votes

Natural mechanism behind burning oceans

Millions of years is a big ask. Methane hydrates or hydrocarbon leaks could provide the fuel for burning water. The oldest existing "eternal flame" is a coal seam fire near Mount Wingen, ...
Gillgamesh's user avatar
  • 6,213
4 votes

Natural mechanism behind burning oceans

It wasn't exactly burning oceans, but something similar happened on Earth during the Great Oxidation Event: The Great Oxidation Event (GOE) or Great Oxygenation Event, also called the Oxygen ...
L.Dutch's user avatar
  • 292k
0 votes

Species that can create magnetic fields

To answer your underlying question first: Strong electric fields (as made by electric eels) are not relevant to the generation of high magnetic fields. The latter require large currents. Generating ...
Penguino's user avatar
  • 7,508
0 votes

Species that can create magnetic fields

What about having the mineral play a part in it? If the material is particularly sensitive to magnetic fields, it stands to reason that it might be possible for it to be used as a tool to either ...
techno156's user avatar
  • 124
1 vote

Point defense weapons on bio-mechanical spacecraft that part of von Neumann machine horde

Biologic, eh.. i would go with growing diamond darts.At the rear a chamber that contains some pretty energy intensive reaction to propel the dart further. If they can marshal the chemistry, they could ...
Pica's user avatar
  • 4,774
1 vote

Point defense weapons on bio-mechanical spacecraft that part of von Neumann machine horde

Causative concluded most of the options that I was going to suggest even though I don't agree with some of his points, here's some more options: Kinetic Drones Whipple shields are great for stopping ...
General_Ripper's user avatar
1 vote

Point defense weapons on bio-mechanical spacecraft that part of von Neumann machine horde

These ships will primarily face missile saturation attacks flying from thousands of kilometers away, which is why they need point defense I'll take this as the design constraint. An enemy shoots ...
causative's user avatar
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0 votes

Species that can create magnetic fields

As mentioned to other people in the coments, you'll need a constant current and the exemples of real life animals are pulses. However,magnetoreception in animals give a lot of insight on how animals ...
Ítalo Lucena Vaz's user avatar
0 votes

With modern technology, is it possible to permanently stay in sunlight, without going into space?

Another approach: People have been proposing very fast planes--yes, but endurance is a major issue. These answers are based on a false perception of the distance needed. The Earth is 25,000 miles ...
Loren Pechtel's user avatar
0 votes

What scientifically plausible apocalypse scenario, if any, meets my criteria?

Climate Change Irony This probably won't get all macroscopic life, life is pretty resilient. But it could come close. I'm going to say this isn't technically anthropogenic because it would be a ...
Perkins's user avatar
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0 votes

What are the size limits on an spin-gravity space station?

The hoop stress on a rotating ring is proportional to the square of the tangential velocity at the edge, according to the formula I have found there. So for a thin ring maximum tangential velocity is $...
Calmarius's user avatar
  • 349
-1 votes

What industrial footprint is needed to manufacture ample medieval-era work uniforms?

Slight frame challenge: The Medieval world already has what it takes to produce your uniforms with a few tweaks. You do not need fancy modern machinery, as long as you have peasants. Fiber. Cotton is ...
Going Durden's user avatar
  • 6,021
2 votes

Role of mouth size in ability to replicate human phonemes

You are correct in that this will cause them to have problems with human phonemes. Not insurmountable problems, but problems nevertheless, such as; By giving them snouts, you just vastly enlarged ...
Going Durden's user avatar
  • 6,021
3 votes

Mechanism behind a pink human skeleton

Lucky you, this is actually an observed phenomenon in mammals, namely: Somalian Goats :) Quote: On investigation, the scientists found that the coloration was caused after the goats browsed on the ...
Going Durden's user avatar
  • 6,021
0 votes

What scientifically plausible apocalypse scenario, if any, meets my criteria?

The Cloud of Crap The whole solar system passes through a big cloud of gas and various kinds of space dust. Maybe due to our solar system passing through the Milky Way's disk as it bobs above and ...
Some Guy's user avatar
  • 223
2 votes

Role of mouth size in ability to replicate human phonemes

Frame Challenge The ability to communicate has less to do with our mouths and more to do with our Brains. Consider a Parrot - they can whistle phrases that sound perfectly legible: Gizmo asking who ...
TheDemonLord's user avatar
  • 30.3k
0 votes

What scientifically plausible apocalypse scenario, if any, meets my criteria?

Eukaryolysis Thinking about an apocalypse that destroys all macroscopic life, one direct possibility is a collapse of the cooperation between cells that allows multi-celled organisms to exist. This ...
bobtato's user avatar
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1 vote

Habitable inner planet with large oceans, fast rotation and earth-like atmosphere

Space shades are a wild but potentially game-changing idea here. Picture massive, ultra-thin mirrors floating in space, strategically placed to cast a shadow on our toasty planet. We're talking about ...
Serban Tanasa's user avatar
-1 votes

Can guns be rendered unusable by changing the atmosphere?

Don't play with the atmosphere, play with SULFUR. Maybe the Apocalypse in your story somehow removed, bound, or destroyed sulfur. This would pretty much kill most life on the planet, since small ...
Going Durden's user avatar
  • 6,021
0 votes

Can guns be rendered unusable by changing the atmosphere?

There's more than one way to make a gun, making the atmosphere flammable seems popular, but airguns don't make a spark. Airguns aren't toys, modern airguns kill big game, can be automatic and there's ...
ChellCPlus's user avatar
4 votes

Is it reasonable that my human-habitable alternate universe look different?

The Sun: making the Sun appear dimmer and redder is pretty easy: dust-up the atmosphere. Fine dust (like the one blow from over the Sahara to as far as Scotland) can make the Sun look almost blood red,...
Going Durden's user avatar
  • 6,021
1 vote

Is it possible with modern-day technology to expand an already built bunker further below without the risk of collapsing the entire bunker?

It will be noisy for the people above (unless it's a case like robbers digging into a bank vault where spending a hundred times longer is worth it). It's otherwise completely feasible. In London rich ...
nigel222's user avatar
  • 11.9k
3 votes

Mechanism behind a pink human skeleton

calcium-bismuth molecular structure This is a bit of handwavium, but presume that the engineers figured out a way to make the bones slightly more durable by having the bone cells excrete a small ...
Robert Rapplean's user avatar
5 votes

Mechanism behind a pink human skeleton

The best explanation for these humans'skeletons to be such a neon pink is for them to have come from an environment with a toxically high concentration of Cobalt II ions, that they have become adapted ...
Monty Wild's user avatar
  • 63.5k
2 votes
Accepted

Habitable inner planet with large oceans, fast rotation and earth-like atmosphere

In order to make this world habitable, it needs to have low amounts of greenhouse-positive gases in its atmosphere (such as carbon dioxide or methane), potentially high amounts of greenhouse negative ...
Monty Wild's user avatar
  • 63.5k
1 vote

Mechanism behind a pink human skeleton

The skeleton incorporates an abundance of some of the oxidation states of Manganese (Mn). The 2+ ionic states are naturally occurring pale pink compounds such as manganese II chloride and manganese ...
bob1's user avatar
  • 251
2 votes

Mechanism behind a pink human skeleton

The humans were genetically modified to survive in an area with high copper in the soil and native food sources. Lacking a good mechanism to excrete copper, it's bound into a pink sulfur compound ...
arp's user avatar
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