Asteroids and ancients -moved from OT

Vile said:
captainjack23 said:
EDG said:
Nevertheless, with that attempt, Traveller became something that was sold as "realistic".
No, not really. I don't recall it being advertised as anything other than a game.
<nose clips in place, a few dabs of goose fat, and he dives in>

There seem to be few, if any, references within the CT rules regarding the intended level realism (or 'hardness') of the game. The question has either been scrupulously avoided, or it never occurred to the writers. I'm not sure when SF was split into 'hard' and 'soft' categories, but maybe CT is old enough to predate the concept. It seems to me (that's an IMO, there) that Traveller has been labelled as 'hard' by its fanbase and not by any official policy.

However, it is evident that some level of research into science and technology went into writing the rules (in some cases moreso than with MGT, it has to be said). There was clearly an attempt to make the rules as realistic as practicable (not the same as 'realistic as possible'). I could see how I would struggle writing LBB6, even with the magic of the interweb to help me. Nevertheless, I would venture to say that CT strives to be what we would consider Hard SF today, in some ways more successfully than in others. And I personally will do anything I can to make things more realistic IMTU, when I know better or when broken bits are pointed out to me.

Now, back on topic - if Ancients blew up worlds (crazy psychos), all those 'planetoid belts' not inside a gas giant's orbit should be replaced with a bunch (1D? 2D?) of S-sized worlds in ... oh no ... non-standard orbits!

Izzat right?

well, for certain values of "blow up", such as a simple wack-a-mole attack (swat it and run), yes.
If you view "blowing up" as a more sophisticated attempt to eradicate a single specific life form, I suspect you'll get very different results. However, as you see, opinion differs on this point. ;)

captainjack23 said:
Dragons maybe?
The OTU has Dragonewts - scouts, warriors, priests and winged nobles, the whole shebang. One of these days one of those winged nobles is going to follow the path of the True Dragon ... :lol:

I think that is pretty much what Grandfather is. :lol:

Traveller has gnolls, too....and big catty thingies....but. What about ducks ? I submit to you that this is evidence of flawed design !
 
EDG said:
I don't really care enough about Grandfather to argue with you further about it. Maybe Grandfather was so crazy as to personally go around scrubbing all of his descendants from existence and then he meticulously spread around the fragments of their planets around their former orbits for good measure.

Well, it was your argument, and your idea, so far be it from me to disagree. But, if that's the closest you can get to conceding a point, I'll take it. :wink:
 
Stattick said:
What the heck is "size S"? Is that something from a previous version of Trav, or something that's in the corebook, but not in the playtest?


*Soo hates being poor... less then a week now before I can afford the pdf corebook*

In book 6, MT, and TNE extended or expanded world gen, if a world has size modifiers that reduce the world size below 0, you instead use code S, and use it as a world below size 1...

Depending upon how one interprets world sizes (I always assumed ±500miles; some instead presume (+0 to +999 miles), that makes size S either 0-500 miles or 0-999 miles.

It was common for moons, almost non-extant for non-moon mainworlds.
 
Stattick said:
What the heck is "size S"? Is that something from a previous version of Trav, or something that's in the corebook, but not in the playtest?
Eeep. Yes, that's a CTism. No size S in Mongoose Traveller. :oops:

However, you can still use size 0 - note the rules say it denotes bodies of up to 800km diameter, e.g. an asteroid or orbital complex. It does not say asteroid belt. Bits of rubble chaotically zooming about the system are also size 0. I like this, because it removes an unnecessary complexity from world generation.

Sooo - if you have a system with no gas giants, but a main world designation of size 0, it won't be an asteroid belt - just a big lump of rock or an orbital <800km diameter.
 
Vile said:
Sooo - if you have a system with no gas giants, but a main world designation of size 0, it won't be an asteroid belt - just a big lump of rock or an orbital <800km diameter.

Playtest said <1,000km instead of <800km.

One of the worlds I rolled up had size of 0, starport grade of A, a tech level of 9, and a population of 11 (hundreds of millions). I was like, wtf?

But I'm gonna use it.

I figure that the world started off as a giant hunk of iron and other ores in just about the perfect proportions to make hulls. So, it was settled eons ago and over time, it came to be a major shipyard. As the other worlds in the sector started developing, it eventually found itself to be at the most important crossroads of trade routes in the sector. Over the last five hundred years, every major trade company in the sector decided that it too needed an office on this little hunk of space debris. Today, all that's left of the original asteroid is the mined out and honeycombed dwelling/megacity. The world doesn't technically have "a starport" - the world is a starport. Different areas have been built to accomdate different styles of ships... Although breeding among the inhabitants is tightly controlled, the population is still rising from beings from all across the sector who come, hoping to strike it rich. It's said that one does not venture down into the dank and poorly ventilated core tunnels without risking everything. The hundreds of thousands of transients in the core tunnels can smell newcomers, and make quick work of them, sometimes just for the newish filters out of their face mask, or a new pair of shoes.

Recently, as the situation has deteriorated on Bedlam, the Imperium has stepped in to try to stablilze the world. If they let it fall entirely to anarchy, it could ruin the economy of a hundred worlds. However, the old government (Charismatic Oligarchy) council of Guild Masters still hold more practicle power then the Imperial magistrates. There's been talk of building a Naval base here... but as the GM's have repeatedly ask, where'd they find the room?
 
The only system with anti-matter in it, that I remember from CT is in Adventure 1 @ Shionthy/Regina. Not sure if the asteroid belt there was suposed to be the result of planet smashing or not?
 
OK, Question on asteriod belts 'created' by the Ancient War.

One, If instead of just one rock fired at the planet but dozens fired at a very close interval would that not help break the planet down in to smaller bits?
Two, Unknown to us is if the direction of the rocks was all from the place or if the strike was from various angles at about the same time. Would this help break a planet into smaller bits?
Three, Since this was 300,000+ yrs ago would not the gravtiy of the system slowly work those pieces into belts?
Four, Since some of the 'childern' were almost as smart as 'Grandfather' and he was complete alone (not counting assistant races) would it not be smart to insure your survival by destroying all others (crazy yes, but the safest way)?
Five, Taking that 4 is true, then some of the 'childern' would have survived the planet busting and maybe even sections of the world chunks were still usable. Being that 'Grandfather' was anal in removing his smart 'childern' would he not again do something extreme to those pieces and make sure that no more pieces would exist the next time he 'blew up' a planet?

Dave Chase
 
AKAramis said:
EDG: it's pretty easy *IF* the grav-sim you have doesn't have the calculation flaw most of the free ones do...

What "calculation flaw"?

The only free gravitational simulators I know are Gravity Simulator and Universe Sandbox (I think that's what it's called). GravSim uses a specific algorithm for the iterations, but AFAIK it's not "flawed", and actually produces damn realistic results. Not sure about Sandbox though, I could never get that to work on my system.

Orbiter AFAIK is just a flight sim, and not really designed to simulate orbits. And Celestia doesn't do gravity at all, it's just a visualisation tool.
 
captainjack23 said:
What do we get when you whack a planet with another one, and then make every effort to maximize the damage ? Let me know if it can model that.

You get what happened with the Earth about 4.5 billion years ago, when the Moon was formed. Most of the planet melted, bits blasted into space that don't come back, and some bits holding in orbit and reassembling to form a large moon. And if the impact was head on, both bodies would have been completely destroyed, and most of the bits would have been blasted into space never to return, and some bits would have remained behind to maybe eventually form a new planet. This has all been modelled before in the "Giant Impact" simulations.

I don't know what's so hard about this for you to grasp. If you hit a planet hard enough, it will explode and not reform. If you don't hit it hard enough, it will reform. The only way I can think of that would possibly result in a belt is to literally abrade the planet over time, removing chunks of the planet and depositing them in independent solar orbits on the planet's orbital path.

Incidentally this is also mentioned on the "10 ways to destroy the earth website" at http://qntm.org/?destroy#sec3 - note the timescale involved:

Meticulously and systematically deconstructed

You will need: a mass driver. A mass driver is a sort of oversized electromagnetic railgun, which was once proposed as a way of getting mined materials back from the Moon to Earth - basically, you just load it into the driver and fire it upwards in roughly the right direction. Your design should be powerful enough to hit escape velocity of 11 kilometres per second.

At a million tonnes of mass driven out of the Earth's gravity well per second, this would take 189,000,000 years. One mass driver would suffice, but ideally, lots (i.e. trillions) would be employed simultaneously. Alternatively you could use space elevators or conventional rockets.

Method: Basically, what we're going to do here is dig up the Earth, a big chunk at a time, and boost the whole lot of it into orbit. Yes. All six sextillion tonnes of it.

We will ignore atmospheric considerations. Compared with the extra energy needed to overcome air friction, it would be a relatively trivial step to completely burn away the Earth's atmosphere before beginning the process. Even with this done, however, this method would require a - let me emphasize this - titanic quantity of energy to carry out. Building a Dyson sphere ain't gonna cut it here. (Note: Actually, it would. But if you have the technology to build a Dyson sphere, why are you reading this?)

Earth's final resting place: Many tiny pieces, some dropped into the Sun, the remainder scattered across the rest of the Solar System.

Feasibility rating: 6/10. If we wanted to and were willing to devote resources to it, we could start this process RIGHT NOW. Indeed, what with all the gunk left in orbit, on the Moon and heading out into space, we already have done.

Source: this method arose when Joe Baldwin and I knocked our heads together by accident.



EDG: The problem here, is that you are using random, non-instrumental events to insist that intelligent meddling is impossible. Thus: a planet cannot naturally collide with another and produce a belt like that described by a non-natural, instrumental intervention; therefore, the belt cannot exist, and the mechanism of intervention is nonsensical.

No, the problem here is that you don't know what you're talking about. I don't know what you're talking about half the time either for that matter, because you're so wrapped up in patting yourself on the back and impressing yourself with your "witty" banter and facetious commentary that you don't even make sense most of the time.

Your contention is that a belt is described in a fictional product as being formed from an destroyed planet, so therefore it must be possible to create it. My contention is that the evidence I have tracked down so far implies that it is not possible to create a belt from a destroyed planet in reality, and if that is indeed the case then the fictional product must be in error and you are wasting your time trying to explain it realistically.

If you want to ignore the science then that's up to you, but don't waste everyone's time trying to persuade us that it is actually possible to do when it isn't. And no, the "but they're Ancients, they can do it" argument isn't valid either - they don't get to magically circumvent energy requirements or orbital dynamics or anything else like that.

The problem isn't the "destroying the planet" part (which itself requires ridiculous energy expenditure) - the problem is "spreading the planet's fragments over its entire orbit". I'm not yet sure that this is possible.

Alternately, your contention is this: A belt is observed that is impossible to explain by naturalistic models. Therefore, it does not exist.

That sort of belt isn't "observed" though - it's described in a fictional product. So yeah, damn straight it doesn't exist.


I put to you that framing the dynamics of a natural event is grossly different than framing an event contaminated by intelligent intention. A natural planetary impact has no intent to kill anyone, and can be described fairly reliably. An attack intended to destroy, will likely have a very different profile, and result. Intent -by intelligent design-, is vastly different; it is still amenable to observational analysis, but not in the same way, or by the same logic that a naturalistic event is. Get it ?

And I put it to you that your contention is wrong. Intent has nothing to do with it - an attack using an impactor that is "intended to destroy" the planet is no different to a single natural impact big enough to destroy the planet. And the consequences are no different either, because the same physics applies regardless of whether it's natural or artificial.


EDG: And besides, you're just putting intent into their mouths so you can pillory it. Show me the ad copy, message or interview that states their intent being as you describe it. Or your Psionic registration card. One or t' other, please.

And I'm really not interested in your endless petty sniping. Either stick to the point or shut up.
 
Dave Chase said:
One, If instead of just one rock fired at the planet but dozens fired at a very close interval would that not help break the planet down in to smaller bits?

No. For starters, I think the later impactors would more likely be vaporised by the destructive energy released by the first one. But the total effect - even if they did all get through - would still be the destruction of the planet. Now, if you want to hammer the planet with Moon- or Mars- sized objects over time, then that would definitely destroy it, but you won't have much material left behind to form a belt because most of the material would be blasted off faster than the escape velocity.


Two, Unknown to us is if the direction of the rocks was all from the place or if the strike was from various angles at about the same time. Would this help break a planet into smaller bits?

No. See above.


Three, Since this was 300,000+ yrs ago would not the gravtiy of the system slowly work those pieces into belts?

No. Doesn't work like that - gravity would actually work to reassemble the bits, not scatter them over the orbit.


Four, Since some of the 'childern' were almost as smart as 'Grandfather' and he was complete alone (not counting assistant races) would it not be smart to insure your survival by destroying all others (crazy yes, but the safest way)?

No. The smartest thing would be to come to an arrangement where everyone agreed to stop what they were doing. Resorting to destruction is always the stupidest option.


Five, Taking that 4 is true, then some of the 'childern' would have survived the planet busting and maybe even sections of the world chunks were still usable. Being that 'Grandfather' was anal in removing his smart 'childern' would he not again do something extreme to those pieces and make sure that no more pieces would exist the next time he 'blew up' a planet?

"We'll blast them into dust, then fuse the dust into glass, then shatter them all over again!"
 
Vile said:
captainjack23 said:
Dragons maybe?
The OTU has Dragonewts - scouts, warriors, priests and winged nobles, the whole shebang. One of these days one of those winged nobles is going to follow the path of the True Dragon ... :lol:

They're even inscrutable and associated with very old architecture.

I'm not sure what tickles me more; using coyns as EWF relics, or explaining the Ancient's War as a territory fight between mountain-sized "magic" using star dragons...
 
As far as I understand it (which is not very far at all ...) a belt could only
be formed if the impact that destroyed the planet:

- did transfer enough energy to the fragments to accelerate them beyond
the point where they would be attracted to each other and "fall back" to
form another planet,

- but at the same time did not transfer enough energy to propel them out
of the destroyed planet's orbit.

To me, these two conditions seem to contradict each other, which would
make any "natural" formation of such a belt impossible.

Someone would most probably have to "catch" the escaping fragments,
decelerate them, move them back into the orbit, and spread them evenly
over the entire orbit.
Not exactly an easy task, not even at TL 16+, and an extremely sense-
less one, too.
 
EDG said:
captainjack23 said:
What do we get when you whack a planet with another one, and then make every effort to maximize the damage ? Let me know if it can model that.

You get what happened with the Earth about 4.5 billion years ago, [snip of the same old stuff about the scenario that you want to impose] This has all been modelled before in the "Giant Impact" simulations.

That was in the journal of "giant impacts caused by immortal alien lizards doing nothing more than just tossing an asteroid and walking away" right ? Must have missed it.
I don't know what's so hard about this for you to grasp. If you hit a planet hard enough, it will explode and not reform. If you don't hit it hard enough, it will reform. There's no way for it to spread around the star as a result of a single, discrete event. [repeat]

Yes, that is the problem. Why are you so obsessed with the idea that it was a single discreet event ? All your arguments are based on that point, which need not be the case ? Yes, I can grasp a single discreet impact, that acts just like a single discreet impact will look like a single discreet impact regardless of why it happened. But why are you insisting that that is how it was done ? Why is it so hard for you to grasp that your scenario is not what I am talking about ?

EDG: The problem here, is that you are using random, non-instrumental events to insist that intelligent meddling is impossible. Thus: a planet cannot naturally collide with another and produce a belt like that described by a non-natural, instrumental intervention; therefore, the belt cannot exist, and the mechanism of intervention is nonsensical.



No, the problem here is that you don't know what you're talking about. I don't know what you're talking about half the time either for that matter, because you're so wrapped up in patting yourself on the back and impressing yourself with your "witty" banter and facetious commentary that you don't even make sense most of the time.

By the way. Good job of staying above sniping and snarkiness.

No, the problem is that you can't see past your grudge and general hostility towards me (or possibly anyone who disputes your right to define a discussion in your own terms) to try and read my posts for anything but arguing points.

To paraphrase JTK, and not facetiously, either- "I take the discussion seriously. It is you that I take lightly"

Last try,
Here's the point. We really have no idea what is meant by anomolous belts, or even what is meant by belts, or what is meant by "grandfather destroyed planets". Given that, the attempt to define the event in such a way as to intentionally make it impossibly bad fiction really isn't useful. It is fiction. probably bad fiction. And okay, if that makes me an antiscience idiot in your opinon, so be it. But, can you tolerate a discussion of such a woefully silly scenario without trying to tie it into your deep and pervasive opinion that the OTU sucks, just for a minute, please ?

Try this.

Find broken glass. Assume a window broke. assume that a branch broke it in a windstorm. Then note that the glass is ground up and scattered, or is more or less than was in the window, and not just in the pieces or pattern suggested by a simple branch breaking it.

Is it useful to argue that the situation cant exist because it is, a. glass, b. broken and c. can't be explained by a preconceived explanation that does not consider some other initial source of what happened ? And insist that since a single impact cannot explain the evidence, that the whole scenario is unscientific ?

To avoid your distate of anology and metaphor, I'll translate:

Glass = rocks.
Place where the broken glass is found = belt.
Fact that the ground up glass and more or less than expected = anomolous finding.
Arguing that the window doesn't exist, because your scenario is violated by the findings, is your position.
Insisting that what we have to describe the even in terms of a single random branch whacking the window is your defense.

Where is the science in that ? Strikes me as a better model of the kind of "my way or the highway " theorizing that you decry as bad science.



EDG: And besides, you're just putting intent into their mouths so you can pillory it. Show me the ad copy, message or interview that states their intent being as you describe it. Or your Psionic registration card. One or t' other, please.

And I'm really not interested in your endless petty sniping. Either stick to the point or shut up.[/quote]

Funny, given that you shoved the point into the discussion in the first place. Or does "you brought it up, you should expect it to be discussed" only apply to others ?

Regardless, given that this is one of your usual way to back off of an indefensible point (ad hominem attacks , petty sniping, leaving in a huff -some others being to just walk away and never post again, or, more recently disrupt, tantrum, and bitch to the admins about your mistreatment until the thread is deleted), I'll assume that you are at least tacitly admitting that you are talking out of your hat. Thanks for that.
 
Dave Chase said:
Three, Since this was 300,000+ yrs ago would not the gravtiy of the system slowly work those pieces into belts?
EDG said:
No. Doesn't work like that - gravity would actually work to reassemble the bits, not scatter them over the orbit.
OK, then please explain why the rings of Saturn don't form into planets. (This is not an agurmentative question. Its just a question.)

Dave Chase said:
Four, Since some of the 'childern' were almost as smart as 'Grandfather' and he was complete alone (not counting assistant races) would it not be smart to insure your survival by destroying all others (crazy yes, but the safest way)?
EDG said:
No. The smartest thing would be to come to an arrangement where everyone agreed to stop what they were doing. Resorting to destruction is always the stupidest option.
Who said 'Grandfather' was smart. Highly intelligent, higly self educated and maybe a bit jealous.
And boy howh, we need to get you elected to the UN. In 2 years every one will stop fighting because they understand it is the smart thing to do :)


I personally don't like the 'Grandfather' bit AND assuming he was(is) the only 'super intelligent" being ever alive. If not in this galaxy then in at least one other galaxy.


Though I enjoy most of your posts including these lastest (not counting a few personal points on captainjack), I find it very annoying when you do the same thing that you say others do when you post things like 'he is stupid to destroy his childern by destroying everything around them also.'

If you don't want to deal with a certain part of a post, then don't. Commenting on what a individual did (fiction or real) in the distance past by saying 'he should have done this' does not help others understand why he did it in the first place. Which was the point of some of the quesitons.


Thank you for your response on the way gravity would or would not effect things over 300,000 years.

Dave Chase
 
"Popcorn! Peanuts! Candy!"
"Get yer Popcorn! Peanuts! Candy!"

"Do you have beer?"

"Ah, no sir, I don't have beer but I'll send the beer vendor over here once I go back and get refills in about ten minutes. Enjoy the capsaicin hot, scarlet red flame war."

"Popcorn! Peanuts! Candy!"
"Get yer Popcorn, Peanuts, Candy here."
:P :wink:
 
RandyT0001 said:
"Popcorn! Peanuts! Candy!"
"Get yer Popcorn! Peanuts! Candy!"

"Do you have beer?"

"Ah, no sir, I don't have beer but I'll send the beer vendor over here once I go back and get refills in about ten minutes. Enjoy the capsaicin hot, scarlet red flame war."

"Popcorn! Peanuts! Candy!"
"Get yer Popcorn, Peanuts, Candy here."
:P :wink:

How bout cheap bourbon in a dirty glass ? Could you sent the Bender vendor over afterwards ?


Its okay kids. You can come out. The argument's over. Mommy and daddy despise each other as much as ever, but we're going to just simmer balefully at each other from here on out.

Hopefully...;)
 
captainjack23 said:
That was in the journal of "giant impacts caused by immortal alien lizards doing nothing more than just tossing an asteroid and walking away" right ? Must have missed it.

No actually, it was published by AGW Cameron in one of the Astrophysical journals to explain the origin of the moon. Go read this and educate yourself:
http://www.xtec.net/recursos/astronom/moon/camerone.htm

Otherwise, I'm done with you here. As usual you have nothing better to do than descend into personal attacks, and I don't have the patience or inclination to bother with your facetiousness anymore.
 
Dave Chase said:
Dave Chase said:
Three, Since this was 300,000+ yrs ago would not the gravtiy of the system slowly work those pieces into belts?
EDG said:
No. Doesn't work like that - gravity would actually work to reassemble the bits, not scatter them over the orbit.
OK, then please explain why the rings of Saturn don't form into planets. (This is not an agurmentative question. Its just a question.)

Actually, I think I can field that one too.

Mass. I doubt that the total mass of the rings is enough to form a moon via the kind of clustering process EDG described previously.

Age. Last I read, the thought is that the rings aren't very old at all on an astronomical scale. I suspect that it hasn't had the time to either consolidate or disperse, if it had the potential to do so, anyway.

Both of which do add to the discussion. What is the estimated mass of earths asteroid belt, anyway - assuming that it is seen as a reasonable model for asteroid belt formation ?
And with regards to the remains of some kind of "asteroid beltiod" forming event, my undeducated guess is that 300,000 years may be enough for orbital dynamics to settle down, what else might still indicate some kind of made event ? Would there be chemical or radiological oddities ? would they have cooled down all the way ?
 
Dave Chase said:
OK, then please explain why the rings of Saturn don't form into planets. (This is not an agurmentative question. Its just a question.)

Same reason that the asteroid belt doesn't - the resonances from the other satellites of Saturn keep the ring particles colliding at velocities that result in fragmentation instead of accretion. Or, in plainer english, the particles keep smashing themselves apart rather than sticking together.
 
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