New answers tagged

2

You have added the "science based" tag. And that's a problem. There is no known way to make time pass faster on another planet. You marked "Accepted" an answer by Mathadict about standard old relativistic time dilation. But this answer is wrong. If two planets are traveling relative to each other, then each sees the other as going more slowly. This is ...


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Your characters believed the connection to be a wormhole through space, but they have actually been using: A wormhole through space AND time™ When the wormhole is lost entirely, your characters "repair" it by creating a brand new one. But since they are unaware of the time component, they don't take timeframe into account. Their wormhole connects the ...


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A combination of lightweight weaponry and strong legs. Let's get the weapon part out of the way first, because you don't want them carrying much (or anything). What I'm thinking of would be either spears made from a lighter wood, and/or metal talons to strap on their feet. Neither would weigh much. Here's my idea for how they would be used: Spears (if you ...


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Dropping torches You see, in life, there's always the way things ought to be, versus the way things are. There is an ideal, and there are us, frail, pathetic, humans (or wyverns in this case) who approach the ideal, but cannot reach the ideal due to our nature. And in the war the ideal is bombing the everloving place-where-sinful-people-go out of the enemy....


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Just normal velocity Time Dilation would do it, this even solves the issue of why it doesn't happen when the planets are "connected" If the earth is moving very fast in relation to the distant planet then time would move slower on earth than on the planet. But when they are close together, then they actually aren't moving very fast in relation to each other ...


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To have the same angular size as the Moon at a bit less than a tenth the distance would require your stationary moonlet to be a bit less than a tenth the diameter -- that would be close to 300 km. Such a satellite, in geostationary orbit, wouldn't have an appreciable effect on the Moon's orbit because, if of similar composition, it would have less than 1% ...


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This is just another way of asking the n body problem (n=4) The n body problem is generally considered unstable for n=3 and larger. There are special cases of stability, your situation would certainly require a computer simulation in order to analyse it.


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It's pure handwavium... but it's not completely absurd. As noted in Christopher's answer, powerguns work via a hand-wavium reaction that generates plasma from a specially formed matrix of "stuff" (that probably qualifies as a metamaterial). Now... we've known how to achieve partial matter to energy conversion since at least World War II. We know there are ...


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However, the only feasible part I ask is if it is possible to have a bomb energetic enough to cause oxygen and nitrogen fusion at all, which should already be destructive enough on its own, and is satisfying enough for me. Nope. I mean, it isn't forbidden by physics, but like so many other things that aren't technically impossible the engineering of such ...


1

Energy is energy. You can use it to run any motor you want. You can heat objects. You can make light. You can propel objects. You can generate electrical charges large and small. Lightning, if you want. Zero-point energy is just another energy source. There is nothing special about the energy produced, so there is no special use for that energy. Anything you ...


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Selective breeding, this could seems brutal, but our immune system works pretty well because we evolved/adapted to live on our planet. On a generation ship, the environment will change and it will be hard to reproduce the same conditions on the earth. Bacteria will change and adapt to live on the ship, humans should too. People with a better immune system ...


2

I think a virus is better, because a bacteria can be easily killed by antibiotics. Bacteria, can become antibiotic resistant, but you need to consider that there are hundreds of antibiotics and new one can still be developed. Create a cure for a virus is much harder. [Synthetic_virology][1] https://en.wikipedia.org/wiki/Synthetic_virology is possible even ...


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Pets and other animals While it seems wasteful to have live pets in the resource limited environment of a generation ship, their influence on mental wellbeing should not be underestimated. In this case however we're more interested in their tendency to be rather unhygienic by human standards. Walking in places you'd rather they didn't then climbing on the ...


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After posting this i saw a similar post but: If you hired the zero G plane (vomit comet) you could pack a large container with both yourself and coins, when it went into zero G you could then swim through them. There would have to be just enough coins so as you swim they compacted against the rear wall of the container giving you resistance to get ...


0

Here is a video of someone experimenting swimming in shade balls that they use on a reservoir. It will give a similar answer to your coin question. The resistance of the coins would impede progress as it will be higher than the propulsion and resistance your arms and legs would have swimming, you would have to make some kind of fins for your feet and a ...


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Octopus and squid are generally solitary creatures, and will fight viciously if confined to the same area. So even if they were super smart but antisocial, they are probably not going to achieve great things. Cooperation, trade and beer are what has made civilization. However I did hear about an experiment where researchers put MDMA (Ecstasy) into the water ...


1

Assuming you have the biotech to engineer the microbiome needed to make the soil at the destination usable the ship could introduce asymptomatic diseases at suitable intervals. Once you have a small seed the self replicating nature of the infection will take care of widespread distribution. Data gathered from regular health checks would be ideal for fine ...


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Vaccines+ While you're probably not at risk of several of the diseases that vaccines help against in such a controlled environment, you could still use vaccines to keep the immune system active. It would also be very controlled. You might even be able to save some resources by not trying to engineer a docile version of the virus or bacteria. Most bacteria ...


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I don't think you can do this without fluidizing, in a way that keeps the coins levitated and separated relative to each other in ways that are 'self-restoring' when the diver compresses them. The dive builds up a fair amount of gravitationally-induced kinetic energy and the coin system must absorb and dissipate this while having enough 'density' that the ...


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It might let you move to something a little bigger, but the square-cube law is causing more than one problem here. Incidentally, I notice some people leaping to the idea that you need enough hydrogen to lift the dragon outright or at least cancel its weight fully (which would result in something closer to a hot air balloon than a dragon). Why? You would only ...


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I'm going to answer this question from a non-biological perspective, as I think the question you're actually asking is 'Can a Squid be as intelligent as a human?' The supplementary question being 'Can squids function like humans?' This latter question is a mine-field of broad issues so let's deal with the first question first... In order to answer this ...


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A 1990 era series of experiments known as MARAUDER (Magnetically accelerated ring to achieve ultrahigh directed energy and radiation) was conducted by the USAF with the purpose of creating a plasma device capable of being used for “hypervelocity projectiles,” x-ray production, and electrical power amplification. The stated goals of the program included ...


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The disease is an infectious meme. https://en.wikipedia.org/wiki/Meme A meme is an idea, behavior, or style that spreads from person to person within a culture—often with the aim of conveying a particular phenomenon, theme, or meaning represented by the meme. A meme acts as a unit for carrying cultural ideas, symbols, or practices, that can be ...


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Could we ever create squids that have human level intelligence? Well my first impression was I think not, but forever is a long time so I would say maybe. I suspect that the molecular machinery that controls squids is very specific to squids and has evolved over millions of years in the same way that the molecular machinery for humans has evolved to help ...


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I'm not an epidemiologist, but I do a lot of computer science and at a high level, infection in computer networks and in humans have a lot in common. Ultimately both come down to two factors - transmissability and payload. Let's discuss transmissability first. In epidemiology, there is a factor called R0, or R-nought. This was made famous in the movie ...


4

one way is to have a bunch of bacteria and give it all the antibiotics slowly but surely, before releasing it. it is an actual problem of today where bacteria are adapting to the current antibiotics and are getting stronger, forcing us to make new better antibiotics. i know a lady who everytime she got sick, or got hurt she would take an antibiotic i think ...


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TL;DR: there's no recoil, there might be no noise, you'll see visible light beams, the damage will look a bit like drilling through hard substances and exploding soft substances. The effect of the shot on the target will be loud and bright. Do not look at laser victim with remaining eye. Wear futuristic carbon nanotube armour. Anything else is pretty poor ...


0

A Related Problem and Solution This relates to a similar problem and solution. The problem is over-tightening screws. The solution is Torque Drivers. They are special "screwdrivers" which act like normal screwdrivers until some specified force is reached. Once reached, they ratchet around, preventing over-tightening on the screw. How does this apply? Apply ...


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The short answer is Nope It takes one m^3 of hydrogen to lift up a kilogram. It is also flamable and would diffuse through the walls of the container. The square-cube law only applies to things that have a similar shape. This means that with strong-enough materials and a major overhaul in design, a larger dragon is possible. You wouldn't want to make them ...


1

How big could a hydrogen dragon get while still looking and acting like a dragon? From comments & answers to this question 'not very', apparently a 1,000 ib race horse would need something like 377 m^3 of hydrogen to fly. I'd like a creature at least big enough and strong enough to carry a fully-grown human. One small problem with that .. the more ...


0

The same way Blackbeard himself was so successful: Demonstrate that while you don’t want to kill anyone you absolutely will if pushed, and will do so with extreme prejudice. Then also demonstrate that if your demands are met (in this case ‘turn your ship around and come straight into my docks’) you are entirely pleasant, businesslike and happy to let ...


3

The "copper-cobalt charge" depends on a completely fictional phenomenon that converts those elements directly to energy. The mechanism was described in The Tank Lords: Weygand determined that metallic atoms of a fixed magnetic orientation could be converted directly into energy by the proper combination of heat, pressure, and intersecting magnetic fields. ...


3

Vortex Plasma thrower. https://hackaday.com/2018/04/18/fire-vortex-cannon-need-we-say-more/ Plasma is hot - like gas but hotter than gas and more reactive. By its nature it will want to expand to fill a large area with glowing ultra hot matter. If you are a sniper that is not too useful. But there are circumstances in which it could be useful. A plasma ...


3

I think this would count as I am proposing very very high rotation rates and very high electric charges. The gun could utilize some immensely strong materials formed into a small perfect disc shape. This disc would then be given a very large electrostatic charge, positive on the rim and negative in the centre or vice versa. It would then be spun up to an ...


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Internet is full of calculators if one searches for them. From atomic bomb to asteroid impacts, people can calculate anything. Spinning worlds included. Here is just the first of the list I found by googling. For a 2.5 km radius you get an angular velocity of 0.59 revolution per minute. For a 1.5 km radius you get 0.77 rotation per minute.


1

The negative factors for life appearance are lack of any energy or strongly chaotic energies. In the described situation nothing of the kind is present. If life appeared in some conditions, they are good for it. Any strong regular energy will be USED. As the planet with all on it is moving in the strong magnetic field, they all are electric batteries. ...


3

It would deliver built in tactile and auditory feedback. It was disconcerting to have a gun that fired but you did not know it for sure. There is minimal kick. You cannot always see the laser. You cannot be sure it has worked. Soldiers were used to regular firearms that shoot projectiles. These offer tactile and auditory feedback so you know you have ...


2

I think that firing the weapon would feel like playing with a child's toy rifle. It wouldn't make any noise unless some internal mechanism made noise. And, it wouldn't have any recoil to speak of since the mass of photons is very nearly non-existent. The weapon itself might exhibit some kick if there was a significant current flow generating a Lorentz ...


4

It Makes a Sound If the energy density were a little higher, there would be a popping sound as blooming causes some of the air along the path-of-fire to momentarily turn into plasma (an effect a little like lightning). There's an even bigger sound when it hits the target (more on that in a bit) It Has Recoil I had never thought about this in sci-fi ...


2

Everyone has made really great suggestions. I think the stumbling block for your lizardfolk is for them to have human-level intelligence given their metabolic energy budget. Lizards have brains now that provide them with the capacity to hunt, flee, seek shelter and reproduce. So it seems they only need a different form of brain cell for higher brain ...


2

You could make your lizardmen reptile-brained in the biological sense. That means they would have the following qualities: Weak social inclinations, making it difficult for them to organize coherently. Lowered inhibitions, making them prone to infighting, sudden hatreds and affections, and in other ways generally quite fickle. Somewhat obsessive, single-...


2

You only need homeostasis for the brain. You could give your lizards a symbiotic infection for a separate carapace creature that regulates body temperature of the brain region. The lizard can not regulate the temperature for the rest of its body.


7

Regional endothermy. You want your cold blooded "lizardfolk"* to have cold blooded heritage but to be active predators like badgers and be smart like humans. You could allow them to use muscular action to heat blood and then shunt it where it was needed. Several lineages of fish do this and some moths also. http://bioweb.ie/warm-blood-sharks-tunas-...


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The term you may be looking for is "mesothermic". Mesothermic creatures maintain a body temperature above their environment, but it's not a stable temperature. There have been many animals that are, or were mesothermic. Sharks, Tuna, Leatherback Sea Turtles, and echidnas are all mesothermic. It's believed many dinosaurs were mesothermic.


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You’re asking the wrong question. What you want is a halfway house between homeothermic and poikilothermic, not between endothermic and ectothermic, and there are lots of examples. Endothermy is only one of three known mechanisms for homeotherms to regulate their temperature. In fact desert lizards are a good example, keeping their body temperature almost ...


1

Humanities power comes, not from our large brains and tool use, but from our large social structures. A single human is not particularly scary, a bear, couger or wolf can kill one without too much difficulty. But a thousand humans can kill just about anything out there (excluding a larger group of humans). Make your lizard men extremely tribal. Similar to ...


0

This depends on your definition of "catch" Ah a classic useless genius, has a great idea but no common sense. The carrier definition You've equipped the carrier with reaper drones, range 1850km. Once you're within 600km of the target it can reasonably be considered caught. Being on the same side of England is good enough. They've been caught and they ...


1

Since there is "far future science" and possible meta-magic, it might be better to work outside-in, than inside-to-out. What's the Difference in Effectiveness Between Lasers and Plasma? Lasers send a fire-hose of photons downrange, some of which get sponged up or reflected by powdery particulate mix of whatever atmosphere you are shooting through. ...


2

Plasma guns, as traditionally envisaged, don't work and can't work. Hot things expand. Gasses under pressure that are not confined expand. The plasma bolt will expand very rapidly upon leaving the barrel of the gun, and a very hot, high pressure and rapidly expanding cloud of gas is traditionally known as a fireball, or possibly an explosion. The 80s SDI-...


3

The goal is, as others have said, to reduce the friction between coins... or rather, to allow them to slide past each other smoothly: that coins don't do this is not completely because of friction. But we want to do this by the intrinsic properties of the coins, not through adding a gas or liquid. Orientation Normally, coins poured into a container will ...


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