| written by Serpens on May 16, 2007 23:36 |
 | |  | | ![]()  | Tacogeddon said: | | Peterpaul kl h said: | Nice screenshots, but I bet Alex will do better when NV will be released.  |
Sadly, no red dwarfs seem to exist in Noctis, only red giants. I''m sure the explanation for it is right up there with the lack of black holes |
Actually, I've seen low mass red stars in multiple systems, so... | |  | |  |
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 | |  | | ![]() | Serpens said: | | Tacogeddon said: | | Peterpaul kl h said: | | Nice screenshots, but I bet Alex will do better when NV will be released. |
Sadly, no red dwarfs seem to exist in Noctis, only red giants. I''m sure the explanation for it is right up there with the lack of black holes |
Actually, I've seen low mass red stars in multiple systems, so... |
You've got a good point there I have actually seen some red giants with surprisingly low mass that should place them in another star category. They still supported some fairly large planet systems...if I remember correctly, the orbiting worlds had very low gravity.
Makes me wonder what the lowest star mass ever found in Noctis is.  | |  | |  |
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| written by Zixinus on May 24, 2007 20:02 |
 | |  | | ![]()  | said: | | Oh, and by the time you got there, we probably would have discovered a form of hyperdrive and beaten you there. Simply.not.worth.it. |
Creating hyper drives isn't easy. At all. In fact, it might such an impossible problem that it might never will exist. Going subluminal might be worth it.
And sending probes would be worth it too.  They can tolorate higher acceleration, thus arrive faster. Although the thing is interesting.
| Nyrath the Nearly Wise said: | | And a common science fiction gag is the "jumping the gun" plot. A slower than light ship departs on a 500 year journey to Alpha Centauri. About 100 years after launch, some joker on Terra invents a faster-than-light starship. Fleets of FTL ships fly to Alpha Centauri and colonize the place. The slower than light ship arrives to find not the virgin planets they were expecting, but instead 400 year old colonies. Har, har. |
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| | | | The amount of energy it would take to make a wormhole would make subluminal interstellar travel look downright cheap.
The alcubierre warp drive (sp?) idea seems kind of promising if it turns out to be possible, but it would still require an immense amount of energy that we just can't make. Maybe a long ways down the road of time we might be able to put that kind of machine together, but we'd be basically sending a ship comprised almost entirely of reactors and engines to another star, which isn't very useful for colonization.
A bit more info: http://en.wikipedia.org/wiki/Alcubierre_drive | | | | |
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| written by Zixinus on Jun 01, 2007 14:11 |
| | | | ![]() Actually there is an improvement of the Arcubierre warp-drive that would require far less energy. However, you must figure out a way to compress space without damaging the matter inside it.
http://www.npl.washington.edu/AV/altvw99.html
The main trick then is creating negative energy density. Don't ask me what it is exactly, I'm not sure myself.
For some more "alternative view" madness, see here: http://www.npl.washington.edu/AV/av_index_sub.html#8
(pseudo-science content is minimum). | | | | |
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 | |  | | ![]() Yeah because we'll never firgure out a way to make huge amount of energy in a small amount of space... Pft, powering a whole city off of one plant? Never gonna happen.... A world wide system of wires to transmit information almost instantly between people in their homes? Yeah like THAT's ever gonna happen....
Science always does hugely unexpected things people, keep your minds open | |  | |  |
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| written by Zixinus on Jun 04, 2007 18:20 |
| | | | ![]() Actually, we are some wayward and dark road with the Arcubierre warp-drive paper. It has laid FTL travel unto scientific basis, as opposed to mere daydreaming. It is faaaaar from being anything usable, but it at least gives SOME idea where to start. | | | | |
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  | | | | ![]() If you could accelerate up fairly near to the speed of light, relativity would take care of the "You need X generations and to be in transit for a Very Long Time" problem for you.
The time that would pass on earth between when you leave and when you arrive at your destination would always be greater than 20 years, but the time on the ship could be much less due to time dilation, provided you have enough energy and a sturdy enough ship (see http://www.fourmilab.ch/cship/cship.html ).
According to http://home.att.net/~srschmitt/script_starship.html , if you went 20 LY with a maximum acceleration of 1 earth gravity (and an unlimited energy budget), you would arrive at the destination after about 6.04 years (in your ship's time), but on Earth about 21.85 years would have passed.
If you accelerated at 1.2 earth gravities, it would only take you 5.3 years (and 21.55 earth years).
If you accelerated at 0.1 earth gravities, it would take about 25.9 years on the ship and 34.2 on earth.
If you could somehow accelerate at 10 earth gravities without causing problems, it would take about 1.03477 ship years (and 20.19 earth years). Your maximum speed (which would be at the midpoint of the journey) would be 0.9999539484166761 c. | | | | |
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 | written by Zixinus on Jun 06, 2007 20:20 |
| | | | ![]() WITH an unlimited energy budget. Even with anti-matter, it takes a heackofa long time to get that fast. | | | | |
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| | | | Unless you don't mind getting pancaked by the acceleration of sitting on a purely-antimatter engine. | | | | |
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| | | | ![]() Those times take into account the amount of time you spend accelerating before the halfway point, and the time you spend decelerating after it. But yes, with an unlimited energy budget and some means of protecting yourself from getting shredded by cosmic dust and loose hydrogen atoms. | | | | |
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