- #1
LaLiLuLeLo
- 2
- 0
Hi everyone,
I am an aspiring writer, and I have come here seeking some insight/a second opinion. I recently decided to work on my one novel, a science fiction story, and unlike some other sci-fi writers, I want to make my book as scientifically plausible as I can, without relying on something like this to explain the tech...
Me: In the future, people can do THIS!
Reader: And how does that work?
Me: Umm...err...SCIENCE!
In any case, I've been hard at work looking at theories, crunching numbers, and of course, making the physics plausible. So far, I've come up with ideas for various scientific advances within the story's world, such as warp travel, artificial gravity, and in-space resource conservation, to name a few. However, today, I was working on another key aspect of the tech, and something didn't seem quite right. I did the research for what sort of math I'd need to use to find the answers I was looking for, but either A) I put the wrong figures in, or B) I am right, though I'm not sure that I am.
Anyways, sorry to ramble a little bit. So here's the issue...I've made plans for there to be a public transit system. A high speed train, in essence.
THE FACTS
+Travels in an environment that has gravity a little less than that on Earth (5.882 m/s2), though most humans have grown up in this environment, so this is their "normal" gravity.
+The trains travel through a tube with little air within, to allow the least amount of air resistance while enough air to breathe for a few minutes should someone accidentally (or stupidly) fall/jump off the train (in either case, there's emergency terminals with oxygen tanks, if anyone's curious).
+The trains, depending on the line, either make more or fewer stops, with the latter being more express routes. For example...
Line A: 997.793 km in 20 minutes
Line B: 402.336 km in 10 minutes
Line C: 2993.38 km in 1 hour
These three are probably the most prominent train lines, so feel free to use them as a reference.
+Maglev
+In terms of train weight, standard trains in our modern time are fine as a reference point. For sake of example, I will use the TGV Atlantique as my reference point. Unlike the Atlantique, however, there's also some room for cargo. This puts the train's weight at a range from 444 t (completely empty) to 509 t (completely full, including cargo). The computer on-board can compensate for whatever weight the train ends up being.
+Train paths will be relatively straight and on a flat surface, aside from a bit of a curvature to the planet (it is a good bit smaller than Earth, so that may play a role.
+Travelling underground in order to save time/decrease distance is not possible in this environment.
THE GOAL
-Find out the best mix of acceleration and deceleration so that the passengers won't end up uncomfortable, or worse, DEAD. While fighter pilots are trained to deal with many degrees of G-forces, the general populace of the story's world is not. Plus, I imagine it would be bad for PAYING CUSTOMERS to get WHIPLASH every time they took the train. Every time I did the math, it seemed as though I did something wrong, or that I used the wrong formula. I have some experience with geometry and physics (both of which have proved immensely helpful), but I admit I'm not confident of the accuracy of my figures. Some help to ensure I'm on the right track (pun not intended) would be greatly appreciated. Feel free to ask for any more info about the conditions, and I'll post them in a reply. Thank you in advance!
BONUS: If you can figure out a way for the train to make the same distance of trip at a faster speed without endangering the passengers, that would also be appreciated.
-Lalilulelo
I am an aspiring writer, and I have come here seeking some insight/a second opinion. I recently decided to work on my one novel, a science fiction story, and unlike some other sci-fi writers, I want to make my book as scientifically plausible as I can, without relying on something like this to explain the tech...
Me: In the future, people can do THIS!
Reader: And how does that work?
Me: Umm...err...SCIENCE!
In any case, I've been hard at work looking at theories, crunching numbers, and of course, making the physics plausible. So far, I've come up with ideas for various scientific advances within the story's world, such as warp travel, artificial gravity, and in-space resource conservation, to name a few. However, today, I was working on another key aspect of the tech, and something didn't seem quite right. I did the research for what sort of math I'd need to use to find the answers I was looking for, but either A) I put the wrong figures in, or B) I am right, though I'm not sure that I am.
Anyways, sorry to ramble a little bit. So here's the issue...I've made plans for there to be a public transit system. A high speed train, in essence.
THE FACTS
+Travels in an environment that has gravity a little less than that on Earth (5.882 m/s2), though most humans have grown up in this environment, so this is their "normal" gravity.
+The trains travel through a tube with little air within, to allow the least amount of air resistance while enough air to breathe for a few minutes should someone accidentally (or stupidly) fall/jump off the train (in either case, there's emergency terminals with oxygen tanks, if anyone's curious).
+The trains, depending on the line, either make more or fewer stops, with the latter being more express routes. For example...
Line A: 997.793 km in 20 minutes
Line B: 402.336 km in 10 minutes
Line C: 2993.38 km in 1 hour
These three are probably the most prominent train lines, so feel free to use them as a reference.
+Maglev
+In terms of train weight, standard trains in our modern time are fine as a reference point. For sake of example, I will use the TGV Atlantique as my reference point. Unlike the Atlantique, however, there's also some room for cargo. This puts the train's weight at a range from 444 t (completely empty) to 509 t (completely full, including cargo). The computer on-board can compensate for whatever weight the train ends up being.
+Train paths will be relatively straight and on a flat surface, aside from a bit of a curvature to the planet (it is a good bit smaller than Earth, so that may play a role.
+Travelling underground in order to save time/decrease distance is not possible in this environment.
THE GOAL
-Find out the best mix of acceleration and deceleration so that the passengers won't end up uncomfortable, or worse, DEAD. While fighter pilots are trained to deal with many degrees of G-forces, the general populace of the story's world is not. Plus, I imagine it would be bad for PAYING CUSTOMERS to get WHIPLASH every time they took the train. Every time I did the math, it seemed as though I did something wrong, or that I used the wrong formula. I have some experience with geometry and physics (both of which have proved immensely helpful), but I admit I'm not confident of the accuracy of my figures. Some help to ensure I'm on the right track (pun not intended) would be greatly appreciated. Feel free to ask for any more info about the conditions, and I'll post them in a reply. Thank you in advance!
BONUS: If you can figure out a way for the train to make the same distance of trip at a faster speed without endangering the passengers, that would also be appreciated.
-Lalilulelo