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Could humans survive travelling at light-speed ?
Topic Started: Jan 9 2018, 02:15 PM (231 Views)
_g R_
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I say no.
This is how long it would take to travel to Mars under perfect conditions using today's technology ( that civilians are aware of, let's say )

Unless you could clear a path ahead with some type of advanced light-speed radar, I don't see how it could be possible to avoid colliding with , asteroids, small moons or other unexpected 'space debris'.





Edited by _g R_, Jan 9 2018, 02:25 PM.
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Robertr2000
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You're thinking about light speed incorrectly.

It's like describing what 3 dimensions are to a person that lives in a two dimensional universe.
"if that **** wins we'll all hang from nooses"
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nNeo

_g R_
Jan 9 2018, 02:15 PM
travel to Mars under perfect conditions using today's technology
Travel at anywhere close to light speed is impossible using "today's technology". Should we develop such technology, it's unlikely to be of much use for a "short" trip like Mars. Consider the g-force you'd experience accelerating and decelerating that rapidly, as well as the risk of collision you mentioned. Very high speeds could probably be achieved in interstellar space, but it would take a long time to reach them. Near light speed may eventually be used between stars, but probably not between inner planets.
"You’ll have a lot of collateral damage.”
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Demagogue
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nNeo
Jan 9 2018, 08:02 PM
_g R_
Jan 9 2018, 02:15 PM
travel to Mars under perfect conditions using today's technology
Travel at anywhere close to light speed is impossible using "today's technology". Should we develop such technology, it's unlikely to be of much use for a "short" trip like Mars. Consider the g-force you'd experience accelerating and decelerating that rapidly, as well as the risk of collision you mentioned. Very high speeds could probably be achieved in interstellar space, but it would take a long time to reach them. Near light speed may eventually be used between stars, but probably not between inner planets.
We have already achieved the first stages of the technology to create a force field. We have in theory shown that "warp drive" could be a real possibility. So in 100 years there is no telling where we will be when it comes to propulsion systems. The one thing we will have to develop (and it is being worked on) is an inertial dampener to allow of the extreme acceleration needed for rapid transport even between the planets of our solar system.

If you think about where technology was in 1918 compared to today, I can honestly say that I have no idea where we will be in 2118.
People sleep peacefully in their beds at night only because rough men stand ready to visit violence on those who would do them harm.
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Demagogue
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_g R_
Jan 9 2018, 02:15 PM
I say no.
This is how long it would take to travel to Mars under perfect conditions using today's technology ( that civilians are aware of, let's say )

Unless you could clear a path ahead with some type of advanced light-speed radar, I don't see how it could be possible to avoid colliding with , asteroids, small moons or other unexpected 'space debris'.





Some of the theories I have seen for traveling at significant portions of light speed (greater than 1% but less than 10%) using "current" technology involve parking an asteroid or giant block of ice on in front of the spacecraft to absorb impacts with dust. The key of course is fuel. You obviously can not use this method of shielding while still using a chemical rocket for propulsion.

Really I don't think any type of major exploration of our solar system will be possible without figuring out nuclear fusion first.
Edited by Demagogue, Jan 11 2018, 11:23 AM.
People sleep peacefully in their beds at night only because rough men stand ready to visit violence on those who would do them harm.
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nNeo

Demagogue
Jan 11 2018, 11:15 AM
We have already achieved the first stages of the technology to create a force field.
What kind of "force field"? Citation needed.

Demagogue
Jan 11 2018, 11:15 AM
We have in theory shown that "warp drive" could be a real possibility.


"Warp drive" as in bending space-time? No, we haven't anything beyond vague theory. You'd need to manipulate gravity independent of mass. We have no idea how to do that, or even if it can be done.

Demagogue
Jan 11 2018, 11:15 AM
So in 100 years there is no telling where we will be when it comes to propulsion systems.


Agreed, but it must at least conform to laws of physics.

Demagogue
Jan 11 2018, 11:15 AM
The one thing we will have to develop (and it is being worked on) is an inertial dampener to allow of the extreme acceleration needed for rapid transport even between the planets of our solar system.


How could one "dampen" hundreds to thousands of g? We struggle to keep fighter jet pilots conscious at a small fraction of that. I could conceive of accelerating a small mass, like a tiny unmanned probe to a significant % of light-speed using external propulsion like a rail gun, or sustained acelleration from an ion drive, but a big manned craft? That would be brutal.
Edited by nNeo, Jan 11 2018, 02:16 PM.
"You’ll have a lot of collateral damage.”
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nNeo

Demagogue
Jan 11 2018, 11:21 AM
Really I don't think any type of major exploration of our solar system will be possible without figuring out nuclear fusion first.
Yup, that would help a lot, as well as solving some major problems here at home. Pretty much the engineering Holy Grail right now.
"You’ll have a lot of collateral damage.”
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RaiderNation
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Coast2coast

We're just talking about "Ludicrous Speed" - what is going to happen when we get to "Plaid"?

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nNeo

Coast2coast
Jan 19 2018, 03:37 AM
We're just talking about "Ludicrous Speed" - what is going to happen when we get to "Plaid"?
Not only would we arrive at our destination before we left, everyone would be Scots when they got there?
Edited by nNeo, Jan 19 2018, 02:41 PM.
"You’ll have a lot of collateral damage.”
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Robertr2000
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nNeo
Jan 9 2018, 08:02 PM
_g R_
Jan 9 2018, 02:15 PM
travel to Mars under perfect conditions using today's technology
Travel at anywhere close to light speed is impossible using "today's technology". Should we develop such technology, it's unlikely to be of much use for a "short" trip like Mars. Consider the g-force you'd experience accelerating and decelerating that rapidly, as well as the risk of collision you mentioned. Very high speeds could probably be achieved in interstellar space, but it would take a long time to reach them. Near light speed may eventually be used between stars, but probably not between inner planets.
With "current" technology, no. With advanced technology, G-Forces wouldn't be a factor.
"if that **** wins we'll all hang from nooses"
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nNeo

Robertr2000
Jan 19 2018, 05:48 PM
With advanced technology, G-Forces wouldn't be a factor.
Perhaps, sufficiently advanced technology is indistinguishable from magic, but for now there's no such technology, nor even a concept of how we might create it.
"You’ll have a lot of collateral damage.”
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Coast2coast

nNeo
Jan 19 2018, 09:15 PM
Robertr2000
Jan 19 2018, 05:48 PM
With advanced technology, G-Forces wouldn't be a factor.
Perhaps, sufficiently advanced technology is indistinguishable from magic, but for now there's no such technology, nor even a concept of how we might create it.
You would have to isolate the person traveling from the event. I can't conceive of any way to do that.

Or pad them like those contests that drop eggs from towers.

And what about the stresses on the vehicle? It too would have to be isolated from the event. So now you are talking about a "field" around the hardware we are traveling in.


But lets get it done already and see what's out there. :)
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Robertr2000
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nNeo
Jan 19 2018, 09:15 PM
Robertr2000
Jan 19 2018, 05:48 PM
With advanced technology, G-Forces wouldn't be a factor.
Perhaps, sufficiently advanced technology is indistinguishable from magic, but for now there's no such technology, nor even a concept of how we might create it.
"nor even a concept of how we might create it. "

Yes, there is.
"if that **** wins we'll all hang from nooses"
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Robertr2000
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Coast2coast
Jan 19 2018, 09:59 PM
nNeo
Jan 19 2018, 09:15 PM
Robertr2000
Jan 19 2018, 05:48 PM
With advanced technology, G-Forces wouldn't be a factor.
Perhaps, sufficiently advanced technology is indistinguishable from magic, but for now there's no such technology, nor even a concept of how we might create it.
You would have to isolate the person traveling from the event. I can't conceive of any way to do that.

Or pad them like those contests that drop eggs from towers.

And what about the stresses on the vehicle? It too would have to be isolated from the event. So now you are talking about a "field" around the hardware we are traveling in.


But lets get it done already and see what's out there. :)
Posted Image






"a "field" around the hardware we are traveling in."

exactly.
"if that **** wins we'll all hang from nooses"
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