Spacescifi

That is a rather tasty solution. May not be ready when you need it though. Unless your suit has mechanical means to feed you that whole you're inside it LOL.

Air is a lot less dense than water so you need more kinetic energy to apply to it to get it to do work for you. What he is doing with his arms is not unlike what tiny insect wings do...only insects do it in a more complex figure eight type of flapping

I know A few CMG's would be the backup...of a backup. The last resort.

Wow....so RCS is life in space. Maybe they should install some CMG's inside spacesuits...although even those can get saturated I know. I reckon inside a spacecraft with air you could 'swim' through air. Albeit slowly. And inefficiently.

Just curious what is possible. If you are in a spacesuit floating in space, to what extent can you control your pitch, yaw, and roll? I imagine you can some....but I think it will be very drifty...like on ice... Like this well known scene....is it physically possible to bring yourself OUT of a roll without RCS even if you are spinning violently? My guess? Difficult...hopefully not impossible. What do you know of this?

Energy shield itself is a paradox. A shield made of lasers?! A shield that shields against lasers? Steel does that LOL. Longer if you spin it anyway Remember not to think about buzzwords too much. It's a buzz word with little real meaning. Like the light saber, or turbolasers that are NOT lasers.

This has been answered elsewhere on the web, but I will tell you anyway. You have finite KNOWN options. What are you trying to deflect in space? Magnetic fields deflect plasma and charged particles. Nothing else really I know of unless it's magnetically polarized metal which you are unlikely to encounter anyway. You can laser burn stuff with a laser, which turns stuff into mini rockets. Deflect is to move out the way, and over you or around you. Not into you. Not like scifi where stuff slams into the shield bubble and disintergrates.

No. Planet gravity won't let you reach luminal let alone lightspeed because gravity assisted gravity field redirection drive would pass on. To make another pass you would have to kill your speed anyway. The sun has 27g but you would die along the way unless you had an EM cloak. Constant 27g would also kill.

Depends....on what you mean by written anything. Since the answer to 'anything' can easily be yes. If you are being specific then I can actually answer. That said, I have scrapped some long held tropes I intended to use as the following shows: Scifi must match the setting one wants. Which means complete realiism has to go. Cannot justify it otherwise. Right now, there is no scenario in which a massive human space colonization effort happens for reasons several are very aware of. Mostly because it is more reasonable not to given the challenge and expense. If it were easier and the challenge was reduced to more reasonable levels then we could see something. For a while I wanted something that could prevent RKV's, but eventually I realized I don't have to make common assumptions scifi makes and that alone can fix it. Common assumption: Scifi aliens exist. What if they don't? What if it's just us? That means Earth is a lot safer from RKV's even if they we do develop high thrust constant acceleration. You do not destroy your home. As for scifi aliens....who really cares? No one really wants to read what they don't know nor understand, they are stand-ins for humans or beasts anyway in scifi, much like fantasy settings. You can even still have them via bioengineering fiction from human science. This even makes space colonization easier, since it is just humanity and it's descendants spreading out over the cosmos. Lots of resource stations on uninhabitable worlds going on to ressupply or grow or add to space habitats. Cities in space.

More to the point, reason is to use intelligent life to help humans use local resources somehow. Already there are far more places we cannot live in the solar system that would also maker resource extraction difficult. Namely, Neptune, Uranus, Jupiter, any world lacking atmosphere.

Needless to say they could not survive Earth environment any better than deep sea creatures. You ARE where you live.

I see...I thought that may be the case Reaching space itself can be faster, but reaching prbital velocity is what takes the time.

Mars air atmosphere is a nonstarter unless you make habitats or you build a shield to prevent atmosphere from escaping. Biggest shield ever built FYI! Mars gravity too weak to keep an Earth atmosphere from escaping.

Oxygen is the most energetic reaction when combinef with other chemicals. Meaning any other type of life will likely be less energetic pr weaker overalll. Which I suppose won't matter as much of gravity is low.

True. Chances are high I will use something a lot easier than this, I just wanted to get a good laugh when as per the usual...even doing what is impossible still has a travel time of months LOL.

This is kind of a sequel to my other thread of a scenario where a billionaire company engineers scifi humanoid 'aliens'. Once they enter the space race though..... The task: Engineer useful life for humans to take advantage of to put on other worlds of the solar system that can survive either for a limited time in the environment or always. Intelligence installed can be human or animal, but not beyond human. Questions: What life forms could we possibly engineer to survive in natural environments? Mars: Not much any atmosphere, so if the life form breathes, and it's likely it will, it must be tiny insect size to make the most of the sparse atmosphere. Role? I dunno....there won't be anything to eat unless....we engineer another tiny insect for them to hunt and eat or perhaps let them eat dead astronauts...I cannot think of much. That sounds like it could backfire horribly though. Europa: Nice icy moon with an ocean. This we can do. Fishy stuff. Gas planets: Gas bag blimp creature that eats gases? Unlikely it can dive really deep as pressure kills. Most useful it's waste product is copious amounts of a gas humans can really use...like hydrogen or something. Given how rough all these environs are, I think it moat merciful to not go beyond animal intelligence. That way humans won't feel so bad about using them as a resource. Your thoughts?

Faster than IRL travel for sure. As the 1g has diminishing returns the farther the vessel is from Earth until lunar gravity has more acceleration anyway. Wonder how long it would take to reach Mars? The real irony? It would STILL take months of coasting...just somewhat less if you expend a few rocket boosts in interplanetary space.

While it is easy to totally make up scifi drives, it is still interesting when a bit of real force is in play. Quin-gravity Drive: Causes vessel using it to fall in FIVE directions under gravity other than down....up, left, right, forwards and backwards. When turned off you will return back to normal gravitational pull. Drive is modular and installed against spaceship hull....so five of them, four cross-ways along the sides, and one along the top in the center. Travel from Earth: You get free 1g fall away from Earth and can even reach orbital velocity! Questions: How long would it take to reach Earth orbit speed? Less than the usual 8 minutes that IRL rockets take I presume since this gravity drive has a quick start (immediately starts falling up at 1g, no slow take off here). Possible problems: Earth's 1g gravity field is awesome, but the farther you travel the weaker it becomes to the point where you're gravity drive will probably barely accelerate if at all. It would be nice to use Earth gravity acceleration as long as possible but realistically it would probably be smarter to turn it off if destination has less than 1g. Why? You will come in too fast otherwise, and the local gravity may or may not be enough to curb enough of your excess speed in time. For examlple, from Earth to the moon, would it NOT prolong travel time if the vessel used Earth gravity until moon gravity became stronger and started to then try to use moon gravity to slow down for landing? Or would it be faster to just use Earth gravity directed acceleration drive to put along a trajectory, coast and then use moon gravity to land with less excess kilometers per second? Travel options: You could go anywhere in the solar system, although the 'dead zones' would be interplanetary space far between planets. At points such as these you could burn some rocket propellant I presume, since I am rather certain sun gravity is still rather weak at Earth orbit ranges and won't even be a fourth of a g acceleration. You guys and gals likely know better though....

The purpose of any fictional worlbuilding is to provide a social context for the characters that exist. It is the foundation that provides what, why, where, and who. Unless one is writing totally realistic scifi, then the author only needs to know what social context he wants the characters to exist in and go from there. What if's can be answered handily by scifi, the how we get there? Not really...since if we knew it would be reality. So if all one is writing is a what if story, they can extrapolate the entire setting a lot easier by deciding the social context first and building around that. You may add to this what you know.

Only paid by jobs...which are NOT always one and the same as the master. Unions exist for paid jobs, not nonpaid slave work. The difference between a Alpha slave and a free Alpha man or Alpha woman is that when a slave comes home from work he/she still has duties his master will require of him or her at home, if not right away, still the same day. Everyday. Like a housekeeper/babysitter.

They are home servants. What did you expect? Even Roman slaves, although less free than fictional Alphas, could find ways to make money for themselves. Unlike American slavery which had little to no path to freedom unless a master set them free which was unlikely. Alpha slavery is NOT for economics. It's just a servant around the house to assist with maintenance, chores, and the kids to free up the master's time for other pursuits. They are like unpaid lackeys for lack of a better word.

Alpha slaves really don't have it like humans do so long they are owned BY Alphas. In a way, Alphas view slavery as a binding lifelong till death union between slave and master till death....like marriage almost. Minus the romance and procreation. Are they paid? No. But they can still work regular jobs on the side and get paid. Usually Alpha masters are wealthy enough to hire out some of their own Alpha slaves as workers as well. Slaves work paid jobs less than nonslaves if an Alpha master likes their slave work, usually working more nonpaid slave work at their home Free room and food from master is provided. Slaves can be released by the slave choosing another master or the master releasing them from duty orthe master's death. Alphas do not SELL slaves for money. Which is a bit ironic as the company sells them as infants as super ability scifi 'alien' citizens. Alphas know how humans view slavery in a diferent way, and actually loathe human slavery. Humans make unreliable slaves....according to Alphas. So they prefer Alphas anyway.

Yes...I know and knew that. Slightly puzzled with you right now.

I did. If you have LOX you can use it. If you do not....ISRU. Which is mission difficult because you need the mission to pay off more propellant than it costs the crew in propellant...or at least break even.

Oh...this could be still be untrodden territory for scifi. Consider....are they prepped for boiling cadavers and using them as propellant? No. Which means....the boiler they do have is too small for a cadaver, let alone two. Which means some poor guy or gal is going to have to 'disassemble' them...piece by piece. IN ZERO G! Messy and gross is an understatement. Do they have medical saws aboard? Hope so. Otherwise we are talking cutlery. Don't envy this person...at all. Probably will suffer from PTSD after. Even worse if they lack medical training and or the cadaver is opposite gender and they had a romantic relationship with them in the past or were developing one. Even if they were not, how do you explain to your significant other back home on Earth what you did to survive.? You don't....not easily probably. Also somehow the people responsible must transport the hot boiled soup of the deceased, likely by unbolting and transporting the boiler itself to a place to pour the contents into a spare propellant tank for miscellaneous propellants. Exactly. If stored you can do that. But when you run out? ISRU is your only option. The problem is how many different spare empty tanks do you need? There are more options than you can really put tankage space form If you are relying on LOX and LH then those are the only resources you hunt for. Since an LH tank as far as I know is not something you want to mix up with other propellants, and definitely not an LOX tank...because of possible combustion/explosive reactions. So there is a limit to tge variety and number of spare ISRU tanks you can realistically carry on any spaceship. One design I think could work well is an oblong vessel with an inflatable bladder at it's center of mass. Ideally it would find an icy comet or icy asteroid, extract as much water as possible and fill up the bladder balloon. So that you have an oblong vessel with a massive balloon in the center connecting both halves of the vessel, since it has more volume to hold propellant than the actual vessel's interior hull. Fat and ugly? Sure. Effective? Very if designed properly with the best materials for the job.