Microgravity Makes Interstellar Travel Impossible, Say Experts
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SERIOUS QUESTION!
why not just accelerate at a constant velocity = 1g
and decelerate half way from your target at a constant rate of - =1g
seriously? newton? anyone?
no ???
ion drives front and back, with thick shielding to protect from debris, and a spherical ship in the middle that can rotate so it is always facing away from acceleration
you could even turn the ion drives around as-well, so they both point the same way
it's a fact to even get up-to speeds capable of traversing the galaxy you'd have to accelerate for months with any current technology, so why not just use that to your advantage?
i really think that could work
but you still come back to the power / fuel requirements.
anything but ion is too fuel inefficient, but ion is too slow accelerating
what we need is a super ion drive ( impulse )
and a battery the size of a plannet.
actually, a diesel generator ion engine would be the roflcake
they had one on red dwarf. epic comedy value. all the worst parts of every drive system
i guess nuclear / uber ion is the only real option right now
it's just a matter of tricking ion drives into producing actual acceleration
and, i already know the spinning wont work, the ship has to be radically large to make that even feasible which means it needs a drive unit the size of an oil rig to spin it constantly
it just doesn't work.
all you'd need is a really enormous capacitor to store the power and some derivative of a steam engine or photo receptor to convert the light to power
that way you solve the ion engine fuel issue
but obviously you need to send the enormous laser out first, and create a ferry link.
this could be done with robots.
if you really want to get clever, you could fit it with a alcubierre drive
( WARP DRIVE )
really.
go look it up.
and that would tip the balance.
why not just accelerate at a constant velocity = 1g
and decelerate half way from your target at a constant rate of - =1g
seriously? newton? anyone?
no ???
ion drives front and back, with thick shielding to protect from debris, and a spherical ship in the middle that can rotate so it is always facing away from acceleration
you could even turn the ion drives around as-well, so they both point the same way
it's a fact to even get up-to speeds capable of traversing the galaxy you'd have to accelerate for months with any current technology, so why not just use that to your advantage?
i really think that could work
but you still come back to the power / fuel requirements.
anything but ion is too fuel inefficient, but ion is too slow accelerating
what we need is a super ion drive ( impulse )
and a battery the size of a plannet.
actually, a diesel generator ion engine would be the roflcake
they had one on red dwarf. epic comedy value. all the worst parts of every drive system
i guess nuclear / uber ion is the only real option right now
it's just a matter of tricking ion drives into producing actual acceleration
and, i already know the spinning wont work, the ship has to be radically large to make that even feasible which means it needs a drive unit the size of an oil rig to spin it constantly
it just doesn't work.
i actually had an idea about that, if you built an enormous laser at the destination, and shone it at the craft to power it you could 'suck' the craft towards you by using an ion drive powered by the lasersteeple said:
all you'd need is a really enormous capacitor to store the power and some derivative of a steam engine or photo receptor to convert the light to power
that way you solve the ion engine fuel issue
but obviously you need to send the enormous laser out first, and create a ferry link.
this could be done with robots.
if you really want to get clever, you could fit it with a alcubierre drive
( WARP DRIVE )
really.
go look it up.
and that would tip the balance.
yay me 10 space travel 0
most people just don't realize how many problems space travel would bring with it
and the space travel is only a small part of the problem
to actually find something in space is almost impossible
i mean people complain now that scientists are idiots...what if those said idiots got all the coordinates wrong by a few million light years
then we'll just drift through space until we either get destroyed or destroy ourselves
most people just don't realize how many problems space travel would bring with it
and the space travel is only a small part of the problem
to actually find something in space is almost impossible
i mean people complain now that scientists are idiots...what if those said idiots got all the coordinates wrong by a few million light years
then we'll just drift through space until we either get destroyed or destroy ourselves
The Lugz said:
That is the generally most accepted form of practical space travel among theorists and hard scifi-geeks. 1 gee turns out to plenty of acceleration if you keep at it for years on end.
Due to time dilation as you go faster and faster, you will actually be able to travel incredibly far in your life time. If you by that method navigated towards the Andromeda Galaxy, some 2 million light years away, you might be surprised to find out that you would actually arrive there in a "mere" 28 years. Of course, would you make the round trip of 56 years you would be sad to find that 4 million years would have passed on the Earth.
By the same token, travel to a star within our galaxy, taking on the order of several years, would have you "lose" hundreds and even thousands of years after just a few journeys compared to someone back on Earth.
So although it's feasible for interplanetary (intrastellar) travel, the time travelling involved quickly becomes very uncomfortable for larger distances.
Depends on how you go about it. Many scientists get someone else to do it. Stupid people tend to do their own experiments.Jegsimmons said:
That's fine, but don't be surprised when a dozen people sitting around determining cost-benefit actually do decide to make judgments based on what is currently known and understood.Akytalusia said:
Current model has interstellar travel as a bigger waste of money than a chain of clothing stores in a nudist colony.
I thought we already have artificial gravity, if we really want it. You know, spin the ship at the correct speed and let the physics do the rest. Sure, you'd still get lower gravity as you move towards the center of the ship's structure, but just make sure the living quarters are in the outer sections and there you go, Earth gravity. Fill the center of the ship with machinery and such that doesn't need people poking through it all the time.
The other problem (and probably the more serious) is that you would need to either bring a fuel source with you that could produce 1 G of acceleration for 100 years or devise a way to puck up fuel along the way (while moving at relatavistic speeds). I'm not sure if those huge hydrogen scoops various science fiction authors have proposed would be able to provide enough fuel to sustain 1 G acceleration (or anything even close).hittite said:
EDIT: Considering you would reach 95% of light speed after only 90 minutes of accelerating at 9.8 meters per second squared, if you could devise a technology that allowed you to maintain constant 1-G acceleration, the issue of creating generation ships would become moot for anything short of intergalactic distances. Without brushing up on relativity, I can't give exact figures, but a journey of 100 light years would occupy (from the perspective of people on the ship) a duration of years (if not months) due to time dilation. It would still take over a century from the perspective of people on Earth.
Does anyone really thinks about trying it ?Hevva said:
Let's face it - until we're a little bit closer to our sci-fi reality there's no plausible argument for doing it.
1. Create a space ship where all of the living quarters constantly rotate around the centre of the ship to imitate gravity
2. Go with family to superdense planet (most likely) made of diamond
3. ???
4. HUGE FUCKING PROFIT
2. Go with family to superdense planet (most likely) made of diamond
3. ???
4. HUGE FUCKING PROFIT
i refuse to. i refuse to accept anything as concrete as that statement from 'experts' unless they honestly have all their shit together. im honestly tired of all the scientist truly makeing shit up with conclusions highschoolers can come up with during lunch period. and we actually fund these people with actual money?Kenji_03 said:
That is what I meant when I said "take it with a grain of salt".Jegsimmons said:
Like when the FDA says that Eggs are bad for you, then 10 years later says they are very good for you (like they said 30 years ago during the rocky films). Take it with "a grain of salt" and don't take it too seriously.
I think by the time we reach the point of feasible deep space travel we'll have advanced technologically to the point of having artificial gravity or other ways to offset the side effects of long tern 0 g. Reall if we tried deep space travel now it would never work.
Ok.... now to solve the artificial gravity problem so we can make space babies...
GIANT FANS! They are mounted on the ceiling and circulate the air on board while pushing everything down!
GIANT FANS! They are mounted on the ceiling and circulate the air on board while pushing everything down!
Isn't this old news? I remember reading about reproduction not being possible in space about 5 years ago!
Obvious things are obvious.
Sorry guys, I understand that you wanna find alien, fur, blue women but human beings simple live too little and are made from the wrong materials.
Sorry guys, I understand that you wanna find alien, fur, blue women but human beings simple live too little and are made from the wrong materials.