33

First, some history. The first recognizable trench coat was first introduced during the First World War, hence the name. It was not, however, invented specifically for the trenches, as the name might imply: it was actually meant to be a lighter-weight, more comfortable and less-fussy version of the 19th century greatcoat. Both had the same overall purpose, ...


28

The DNA is just the DVD, without a DVD player it is useless. If the characters mother is the alien then its all fine. The technology to clone a creature has existed for a few years, but that just means putting their DNA into an embryo that still needs to be carried to term in a woman. An artificial incubator (like in Star Wars) may be in principle ...


27

It's not that they can't clone her, it's that they're too lazy The one thing no cloning method we know of has ever been able to do is produce clones that are the same age as the original donor. When animals have been cloned in the past, they are born as infants and slowly grow to adulthood the same as any other organism. No one has been able to find a way ...


16

A world with very large amounts of mercury seems improbable as mercury is so much less common than the lighter elements. Perhaps large amounts of mercury could have been gathered by an alien race for some unknown purpose, but rivers of mercury are sadly very unlikely to occur naturally in the vast quantities that you need. Should such a world be hand waved ...


14

Swiss-Army Jacket (think towel from Hitchhikers Guide to the Galaxy) When you are on the move (as you often are in military conflict) you want to carry as little as possible, so items need to be as multi-functional as possible. If you are at home its nice to have a knife, spoon, and fork, but if you are hiking its nice to only have to carry a spork - even ...


14

Your planet is a construct. Liquid gallium rivers are its superficial circuits / arteries. The powdery surface is its skin, intended to slowly ablate as our skin does to protect from radiation and particle impacts. This construct can be integrated into your story. Maybe it is of the same provenance as your advanced robot and they are part of a package. ...


13

In most (if not all) earthly life forms, every cell contains all of the genetic information needed to create the entire organism. Perhaps that is not true of the alien race which is half of your character's heritage. Perhaps that race is made of a variety of specialized cells, with the full genetic map present only in reproductive cells stored safely, deep ...


9

It depends on the missile's capabilities and on the demon's physiology. However, if the missile is capable of detecting any heat gradient, and the demon's biology is roughly restricted by the laws of physics (that is, based on some kind of chemistry and incapable of breaking the second law of thermodynamics), it should be able to. The reason is as follows: ...


8

Imagine we had this incredibly powerful computer that can simulate our universe, and that we somehow knew the initial conditions of the big bang (or the planet earth) down to the exact detail. And there's your paradox! How could you possibly have a computer capable of simulation the entirety of the known universe? Think about it logically - there's no way ...


8

When considering future war you have to realize it is simply not realistic. For all the Expanse's realism it still uses humans in its combat ships because it allows us to tell an interesting story. Droney the Drone is simply not interesting unless we give him human characteristics for no reason. It would be easier and cheaper on earth to start building drone ...


8

The infamous and feared race was not a naturally evolved species. It was a weapon, created to fight wars for its masters. To keep that weapon unique and to keep them from being easily duplicated by the master's enemies, they were equipped with trickster DNA. The Trickster DNA copy-protection technique involves endowing each cell in the creature with ...


7

DNA is not the same in every cell of the body. Mutations and small changes exist. In an alien-human morph, it's not unreasonable to assume that the DNA would be all over the place and vary strongly from organ to organ and location to location; simply taking a skin or blood DNA sample wouldn't provide the full spectrum of DNA required to clone a viable ...


7

Pheromones. Friendly troops are sprayed with pheromones that the B.O.W. are conditioned to recognized as friendly. Whatever doesn't carry that pheromone is attacked. That's the same mechanism some insects use to determine who can freely enter their hive/nest and who will be restless attacked. Yes, before you object to it, if an enemy knows what the ...


6

Mars is too cold simply because its atmosphere is too thin to effectively trap enough heat. Otherwise it would still be within the habitable zone for the Sun, though close to its borders in some estimates. Give it a stronger magnetic field to shield it from solar wind, and its atmosphere can last longer.


5

Looking good! First have a long period of peace. In this period, the main principle for uniform designer was that it should look cool. For many years, different armies competed mainly in how snazzy they looked on the parade ground. Trench coats look cool. The coolest. Then war broke out. Sure, the coat can be hard to move in, but nobody wants to ...


5

Particle entanglement has no bearing in hiding heat emissions. If you want to emit energy with a low probability of detection, use particles that interact very weakly with the normal matter/fields. I don't know, eject that energy as neutrinos or "highly energetic beams of dark matter".Of course, the current level of science and the reality as we know it ...


5

Is it not possible, in your story, to simply make it so that "they" do not actually/yet have a copy your character's DNA? It could be that the bounty is out on her because they would like to strap her down and scan her DNA.


4

A similar issue was addressed in the Vorkosigan saga Miles Vorkosigan suffered teratogenic damage due to a chemical attack on his mother while she was pregnant with him, giving him weak bones and twisted legs. you could introduce some teratogenic damage to your character that wont be easily reproducible in a clone, perhaps a brain abnormality which is ...


4

If you had just googled you'd have found your answer here... The frequency spectrum of Cherenkov radiation by a particle is given by the Frank–Tamm formula: $d^2E \over dxd\omega$$=$$q^2 \over 4\pi$$\mu(\omega)\omega$$(1-{c^2 \over v^2n^2(\omega)})$ The Frank–Tamm formula describes the amount of energy E emitted from Cherenkov radiation, per unit ...


4

In the future conflict, for the topmost layer clothing you want something which... offers stealth against sensor suites of all manner of drones by hiding the gear soldier is carrying under a layer of sensor blocking/absorbing material (same principle as having internal weapon bays etc in current stealth aircraft), and by being cool on the outer surface so ...


4

The situation demanded for protective gear. And the Powers That Be, in their infinite quest to save credits, confiscated a cargo ship with clothes. The most common item was the Trenchcoat and it snowballed from there. Think that history is funny sometimes. Wristwatches were used among ladies for centuries but they really evolved on the battlefield among ...


4

It depends. A very simple heat seeking missile will just chase any hot spot its IR sensor will detect. It can be then easily fooled by spurious hot spots, like fires, flares and the like. In an environment like hell, unless the target is way hotter than hell, its sensor will probably be saturated and won't detect any specific target. If it instead has ...


3

Time tested way of getting naked in a hurry. source Your future soldiers live in circumstances where they must get totally naked at a moments notice. Perhaps they fight inter dimensional battles like the folks in the Terminator series, and cannot bring anything with them. They have to be ready to go at a moments notice. They don't want their clothes to ...


3

All you need is a slightly larger, heavier star that emits roughly (very roughly) four times the radiation the Sun does. Very roughly because, in order to make a star hotter and brighter, you have to make it heavier, and that moves the orbit for a given period further from the star -- but the change due to orbital adjustment to keep the period around 700 (...


3

If the star in the system is just like the Sun, a planet orbiting at the distance of Mars, with a semi major axis of 227,939,200 kilometers, would have an orbital period of 686.971 Earth days, which is within the specified 650 to 730 days and equal to 1.8809 Earth years. The distance of Mars from the Sun is 1.523679 Astronomical Unites or AU, and thus Mars ...


2

Trenchcoats as semi-disposable outer garment. The conflict happens on a world much like Earth. More or less habitable in a shirtsleeves environment, but there are two things in the environment: Some nasty gunk, from mud to bird droppings to tree sap. Getting it onto your skin is icky. Getting it out of your body armor is hard work. (Leaving it on your body ...


2

A Earth-like planet in a Mars orbit will get 43% of radiation compared with Earth. So, just make the star 2,32 brighter than the Sun. Bubup, Belenos and Samaya shows fit enough. They are similar to the Sun, Bubup and Belenos are a bit older tho. All them still be in the main sequence, so allow conditions to one planet like you want come to existence.


2

Entangled particles share quantum states (stuff they do at the subatomic scale), but have different kinetic properties (how they move through space). Heat is a form of kinetic energy; so, cooling one half of the quantum pair should have no effect on the other half's temperature. Another theoretical phenomenon similar to quantum entanglement might work for ...


2

Epigenetics. As cells specialise, they lose their potency, mostly because of epigenetic modifications to the genome. Genes that are not needed are silenced and packed away tightly to allow more efficient use of the genome needed for running that particular cell. There are also epigenetic modifications that are inheritable by offspring. One of the bigger ...


2

You get a baby If they cloned your character successfully¹ they would get an undeveloped (half-)alien. Not only physically, but -most importantly- also mentally. It might be feasible, as a long-term plan, technically. You would need to slowly² raise him, and you might end up with a very loyal servant. But initially you would have a baby you are unable to ...


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