SyFy The Expanse

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Ken g6

Programming Moderator, Elite Member
Moderator
Dec 11, 1999
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I find the spaceflight aspect of the show to be believable. I haven't attempted to do the calculations involved with the speeds you achieve doing a 1g burn all of the time but I can easily imagine that they get you moving pretty quickly. What I do find hard to believe is that they don't get shredded from whatever interplanetary detritus must exist even in empty space.
I can't think of any interplanetary space probe that's been damaged by "detritus". Given the relative speeds involved, time in space is more likely to lead to damage than any normal increase in speed; rather that would lower the chances of damage. Plus, their warships are built to survive being shot through with bullets, minus a few key points.
 
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Puffnstuff

Lifer
Mar 9, 2005
16,041
4,802
136
What mechanical FTL drive?

Do you have a scene in mind from BSG? I can't remember, having watched it long ago.
Yes in the last BSG there was a scene where they showed the mechanical FTL drive spooling up. It was mounted along the spine of Galactica and reciprocated like a huge piston engine but I can't seem to locate a clip of it in action but I did find these. Look at where the piston enters into the cap at the end of its track as it mimics the valves on an internal combustion engine.




It makes sense when you consider how Adama would tell OPs to spool up the FTL drive before a jump then they had to wait a couple of seconds before it was ready for them to complete the jump.
 
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Puffnstuff

Lifer
Mar 9, 2005
16,041
4,802
136
I find the spaceflight aspect of the show to be believable. I haven't attempted to do the calculations involved with the speeds you achieve doing a 1g burn all of the time but I can easily imagine that they get you moving pretty quickly. What I do find hard to believe is that they don't get shredded from whatever interplanetary detritus must exist even in empty space.
You might find this interesting.
 
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destrekor

Lifer
Nov 18, 2005
28,799
359
126
It should be noted that I must have The Expanse TV show seen through to the very end of the story. Anything less would be a travesty beyond comprehension.

I'm watching you, Amazon... tread softly because you tread on my dreams.
 
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Puffnstuff

Lifer
Mar 9, 2005
16,041
4,802
136
Things are about to get buck wild and the writer said they are about to have a red wedding not to mention how they explained the blood plastered all over the ship. I hate that Cotyar was killed off as he was one of my favorite characters.
 
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Thebobo

Lifer
Jun 19, 2006
18,592
7,673
136
Just curious this take place several hundred years in the future and mars is brimming with human life as are Titan, Europa, Enceladus etc all places we're hoping to find some sort of life even if microbial. So they mentioned that the protomolecule was the first terrestrial life they found? And if so did they mention that they at least found some fossils of life on any of these worlds?
 
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kage69

Lifer
Jul 17, 2003
28,055
38,562
136
Things are about to get buck wild and the writer said they are about to have a red wedding not to mention how they explained the blood plastered all over the ship. I hate that Cotyar was killed off as he was one of my favorite characters.

Ditto. Went out with his boots on though.

But let's face it, we've all toughened up after 7 seasons of GoT. Heh.
 
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HutchinsonJC

Senior member
Apr 15, 2007
465
202
126
So they mentioned that the protomolecule was the first terrestrial life they found?
Not terrestrial, but rather extra-terrestrial.

The whole story of The Expanse is within our solar system. Nothing as of yet, has transpired, or been observed, or mentioned, as coming from outside of our solar system, except this molecule.

Edit: The molecule isn't really even a life form, I don't think. It seems to be like some kind of infecting dna or set of instructions to alter existing life.
 

Midwayman

Diamond Member
Jan 28, 2000
5,723
325
126
Not terrestrial, but rather extra-terrestrial.

The whole story of The Expanse is within our solar system. Nothing as of yet, has transpired, or been observed, or mentioned, as coming from outside of our solar system, except this molecule.

Edit: The molecule isn't really even a life form, I don't think. It seems to be like some kind of infecting dna or set of instructions to alter existing life.

If they didn't explicitly say it in the show, in the books they talk about how this is the first proof of extraterrestrial life. The Russian priest Anna is sent with a huge contingent of other religous figures out to the ring as part of a 'what does this mean about god' sort of PR mission.
 

HutchinsonJC

Senior member
Apr 15, 2007
465
202
126
I bought all the books, but admittedly only read the first 10 pages of the first book. I want to read it all, and maybe when season 3 ends, I will haha.

I agree that it's "proof of extra-terrestrial life", but I don't think the molecule is a form of life itself. It's kind of a "who sent it?".

Edit: And a "to what end was it sent?"
 

Thebobo

Lifer
Jun 19, 2006
18,592
7,673
136
Do they mention if they had found fossilized evidence of life in the solar system, or even other live microbial life? Like what we are currently searching for?
 

HutchinsonJC

Senior member
Apr 15, 2007
465
202
126
There's zero mention of fossil/microbial hunts/finds. The show isn't rooted or based on looking for anything like that.

It's a political showdown (not too different that what it's like between various countries today) between different government bodies that turns to finger pointing. All the while the suspense builds, certain characters in the show are becoming increasingly more aware of what's really going on between the government bodies (and a "fortune 500 company")... and then there's this "alien" component that comes into play they call the proto-molecule.

Kinda reminds me of a Reagan speech. I half suspect by the end of the show, the human race will have reunited with each other (putting their differences to the side) to fight a common enemy, but we'll see.
 

Thebobo

Lifer
Jun 19, 2006
18,592
7,673
136
There's zero mention of fossil/microbial hunts/finds. The show isn't rooted or based on looking for anything like that.

It's a political showdown (not too different that what it's like between various countries today) between different government bodies that turns to finger pointing. All the while the suspense builds, certain characters in the show are becoming increasingly more aware of what's really going on between the government bodies (and a "fortune 500 company")... and then there's this "alien" component that comes into play they call the proto-molecule.

Kinda reminds me of a Reagan speech. I half suspect by the end of the show, the human race will have reunited with each other (putting their differences to the side) to fight a common enemy, but we'll see.

Oh I know I've watched all of the seasons and am reading the books at the same time. I even watched the 1st and 2nd season a second time But I do admit to skipping a couple Miller chapters with the first audio book since it was due back and I already knew his line. Just curious if they might have mentioned that somewhere, would of been a momentous occasion to admit life had existed in the solar system. Just for some background fill. Of course I would love to see coreys ideas on how the solar systems was settled.
 

Puffnstuff

Lifer
Mar 9, 2005
16,041
4,802
136
How cool was last night's episode? Having a saboteur onboard the Roci setting them up for failure and then coming under fire forcing them into the ring made for some tense moments. I can't wait for the next episode as they squeeze those reporters to find out what they did to the ship. This season just keeps on getting better and better.

I cannot wait to see how Amazon budgets them and how that translates into production. I have to admit that they've created some very nice sets for this season and if I remember right they've got them spread out on multiple sites.
 
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Midwayman

Diamond Member
Jan 28, 2000
5,723
325
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Just curious if they might have mentioned that somewhere, would of been a momentous occasion to admit life had existed in the solar system. Just for some background fill. Of course I would love to see coreys ideas on how the solar systems was settled.

If they had, it would have lessened the impact of the protomolecule. One interesting bit on the settlement that they mentioned on the science of the expance video is that Ceres is a water rich asteroid. They theorized that it was robbed of its water early on and used to terraform mars. The profile of Ceres doesn't match the current one to support that and would explain why the belt is so salty towards the inners in part.
 
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kage69

Lifer
Jul 17, 2003
28,055
38,562
136
Awesome episode today, it's Miller time!

Think I may have called it. When that bomb was being planted, first thing I thought of was Jake Busey smiling for the camera in Contact. The fundies have arrived - can't have aliens screwing up people's religions!
 

kage69

Lifer
Jul 17, 2003
28,055
38,562
136
Btw, did I miss any bits on Belter physiology? Disclaimer, haven't read the books. Uncle Matteo the Rock Hopper opening his helmet in the vacuum of space to clear something away from his face, why does it feel like I'm the only one who saw that? I asked a few people the other day and they're just like 'Well Belters have adapted.'

Getting spaced still kills Belters though, so it must be just a minor resistance to extreme temps and a vacuum?
 

Charmonium

Diamond Member
May 15, 2015
9,583
2,947
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OK, I read an article that did some calculations on the Epstein drive so I have an idea of how fast the ships can travel.

A 1g burn will have an acceleration of 9.8m/s^2. If you multiply that by time in seconds, you'll get the velocity. There are 86,400 seconds in a day. So after one day at 1g you would be traveling at 846,720m/s. That works out to about 526 miles/s. There are 3600 seconds in an hour so that would be about 1.9 million miles per hour.

The distance fro Mars to Jupiter, on average, is 342 million miles. So you would want to do a 1g burn for half of that distance.

According to the formula I found, distance = 1/2(acceleration * time^2). So t^2 = 2d/a = 2 * (171M miles / 0.0061 miles/sec^2). That works out to 237k seconds or about 2.75 days.

That means that your maximum speed before you start your deceleration would be 1450 miles/sec or 5.2 million miles per hour. That's about 0.78% of the speed of light.
 
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Paratus

Lifer
Jun 4, 2004
16,846
13,778
146
Btw, did I miss any bits on Belter physiology? Disclaimer, haven't read the books. Uncle Matteo the Rock Hopper opening his helmet in the vacuum of space to clear something away from his face, why does it feel like I'm the only one who saw that? I asked a few people the other day and they're just like 'Well Belters have adapted.'

Getting spaced still kills Belters though, so it must be just a minor resistance to extreme temps and a vacuum?

He wasn’t adapted. He was just experienced and had equipment that allows his faceplate to open and close.

You can withstand 10-15 seconds of hard vacuum without passing out. The main issue is you can’t hold your breath. The difference in pressure forces the O2 in your blood back out through your lungs and out the nose and mouth. That’s why you’ll pass out much quicker in a vacuum you will holding your breath under water.

Likewise your skin is tough enough to withstand 1ATM of pressure difference without an issue other than maybe a few surface capillaries leaking blood.

There was actually a historical case of a guy in a vacuum chamber testing a pressure suit being subject to full vacuum when a valve failed.

He passed out in 10-15 seconds They got him out in 30 seconds. He didn’t suffer any injuries although he felt the saliva on his tongue boiling before he passed out.
 
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Puffnstuff

Lifer
Mar 9, 2005
16,041
4,802
136
Btw, did I miss any bits on Belter physiology? Disclaimer, haven't read the books. Uncle Matteo the Rock Hopper opening his helmet in the vacuum of space to clear something away from his face, why does it feel like I'm the only one who saw that? I asked a few people the other day and they're just like 'Well Belters have adapted.'

Getting spaced still kills Belters though, so it must be just a minor resistance to extreme temps and a vacuum?
No you weren't alone and I thought that scene was pretty cool when his helmet mic fell down with a short and he opened up his helmet to clear it. As for the temps they vary greatly depending on whether or not you are in direct sunlight and NASA temperature measurements throughout the solar system show daytime temps in the 70º range around the outer planets when in direct sunlight. When Uncle Matteo exhaled you could see his breath but it wasn't so cold that it crystallized so he was good.
 

Paratus

Lifer
Jun 4, 2004
16,846
13,778
146
No you weren't alone and I thought that scene was pretty cool when his helmet mic fell down with a short and he opened up his helmet to clear it. As for the temps they vary greatly depending on whether or not you are in direct sunlight and NASA temperature measurements throughout the solar system show daytime temps in the 70º range around the outer planets when in direct sunlight. When Uncle Matteo exhaled you could see his breath but it wasn't so cold that it crystallized so he was good.

The temps really aren’t an issue for something like this. The important thing is how much energy is transferred away from the person and how fast.

In a vacuum that’s almost always done by radiative heat transfer which absolutely sucks.

Basically even being pointed into deep space you’d only lose heat at roughly the same rate that you would in a stiff breeze when the air temp was 20C (68F) on Earth.
 
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