Re: The Galaxy Tales - Dirk B.

Chapter 35 is back up. Please rip it apart for me. Thanks.

Re: The Galaxy Tales - Dirk B.

I love writing! In revising my latest chapter, I came up with a neat idea for Apollo. The longer I played with it, the more important it became. As a result, it gives me half of book two, assuming I live that long. As important to book two as the Roman Empire is to book one.

An insomniac probably shouldn't get this pumped at bedtime, but what the hell.
Nite.

Re: The Galaxy Tales - Dirk B.

It's probably overkill to worry about this, but Kdot mentioned that my characters should have turned into salsa inside the raider they were in when the ship was physically struck by an enemy starfighter. The raider ends up spinning end over end while those inside vomit. They're strapped in so they don't fly out of their seats. Also, there is artificial gravity, although it's largely overwhelmed by the ships crazy spinning. Emergency stabilizers kick in to right the ship. Throughout this, I have an inertial damper (splat inhibiter) in effect inside the ship.

What have I missed? Should I just ignore the splat inhibiter and ignore the inertia?

Thanks
Dirk

Re: The Galaxy Tales - Dirk B.

your ship needs a minimum of 26 minutes to slow down (assuming they have 1970's era propulsion) you only allowed them 9.

Normally I love time limits, but in this case it's a drawback,,, I recommend drop the 9 minute part and just leave us guessing

Re: The Galaxy Tales - Dirk B.

http://picpaste.com/equation.jpg

56 (edited by Norm d'Plume 2016-07-11 03:19:20)

Re: The Galaxy Tales - Dirk B.

I need three explicit times: one for when they lose consciousness, one for when they should be dead, and one that shows how long they should have been dead. I need these to set up an apparent miracle.

The first number depends on the size of the hole, so I chose 6 and made the other numbers around the same order of magnitude, leading to approximately 1/6 of an hour to get them aboard. I'm fine with 1/4 or 1/3 of an hour, too. Admittedly, I did a total asspull on 9 and 11. If you know how long it takes for them to pass out, then you can probably calculate how long before they die, but the equations are over my head. Also, it's probably too short, since they have to repressurize the raider before going in.

For your calculation, if they were to reverse thrusters (assuming they were working) and rely on the splat inhibiter, don't your equations become irrelevant? Is there something fundamental in physics that says I can't slow them down more quickly in spite of having the inertial damper?

Re: The Galaxy Tales - Dirk B.

having no inertial dampers asserts a maximum deceleration before they pass out (though, they were headed that route anyway) because the heart can't pump blood that far "uphill".

A "splat inhibitor" would work fine and allow them to break the rule

58

Re: The Galaxy Tales - Dirk B.

Did you consider the reactive (rocket) movement that will result from the leak?

Re: The Galaxy Tales - Dirk B.

njc wrote:

Did you consider the reactive (rocket) movement that will result from the leak?

If I understand the question, it should be a minor effect, since I'm emptying a small ship (holds about 12 people) worth of air over a period of 6-9 minutes (6 minutes to knock em out, 9 minutes to kill em).

Re: The Galaxy Tales - Dirk B.

I should add that the rescue ship calculates the raider's trajectory and then positions itself appropriately for when the raider flies by. The effect would be included in the calculation of their trajectory.

Re: The Galaxy Tales - Dirk B.

I did consider the rescue ship trying to match velocities with  Apollo... and you don't even want to see the equations (however, I can come up with an answer assuming we can give the relative initial speed). The troublesome factor is that the rescue ship is headed towards the engagement and the rescuee is headed away. This means that their relative velocities are doubled.

Now... just before you breathe a sigh of relief, there's a second problem: Their relative momentums are greatly different. The problem is the large mass of the giant rescue ship thrusting one way... and the relatively tiny rescuee puttering the other.

Imagine the Titanic or an air craft carrier attempting to turn and pursue some guy heading the opposite direction on a jet ski. The larger ship would probably take 10-15 minutes just to do a 180. That freak on the jet ski is going to be a speck in the horizon by then. The Law of Convervation of Momentum says that a ship 1000 times bigger must work 1000 times harder than the smaller ship to change direction. You have that working against you here.

PS: I'm okay that the characters think it.

62 (edited by Norm d'Plume 2016-07-11 08:31:46)

Re: The Galaxy Tales - Dirk B.

A momentum inhibitor, perhaps? tongue

Don't forget, the rescue ship (flagship) is about 10 minutes away, even when both are moving toward each other at high speed. The flagship can begin making its turn right away, giving it time to get in position/oriented/moving in the correct direction. I haven't specified the raider's current speed, just that it's at max thrust. I'll need to put a max on the raider's speed, which is easy, since the colission can knock out the thrusters. That means the raider is moving at whatever speed it was going before the collision, and the flagship can, with a bit of handwaving, reach the same speed as the raider, which allows for the tractor beam.

I haven't defined yet why big ships are slower than smaller ships. Momentum may be the key. None of these ships have an upper bound on speed, but the big ships need time to turn or reverse course, so they generally avoid going too fast. In an emergency like this, they would apply whatever thrust is needed to match the speed of the raider.

Does that work?

Re: The Galaxy Tales - Dirk B.

six minutes before pass-out should permit the ship inhabitants to reach some sort of air solution. Unless they are in such high G's that they can't move. Haven't read that part yet. I'm getting there. I promise.

Re: The Galaxy Tales - Dirk B.

They blow apart a seat and then cover the crack in the hull with the seatback, but it's only partially effective. Technically, you could put a human arm against the crack. It would swell and close the hole, but that's nasty (and excrutiatingly painful). It would have changed the focus of the chapter, which I didn't want.

Re: The Galaxy Tales - Dirk B.

Yeah, I saw that episode of Aliens Resurrection.

Re: The Galaxy Tales - Dirk B.

amy s wrote:

Yeah, I saw that episode of Aliens Resurrection.

Never saw it. Did they do that? If so, I'll have to change mine somewhat. Duct tape, anyone?

Re: The Galaxy Tales - Dirk B.

Godforsaken Chapter 35 is back up. Rewrote the epigraph again. This one I like (mostly).

Re: The Galaxy Tales - Dirk B.

Amy mentioned in her review of my Caligula chapter that a small planet (e.g., 10% smaller than Earth) couldn't sustain planetary rings. Does anyone else agree/disagree? And why? Surely Kdot must have equations for this. :-)

Thanks

69 (edited by Norm d'Plume 2016-07-13 08:56:45)

Re: The Galaxy Tales - Dirk B.

If I type gibberish over the next weeks, it's because I bought a Microsoft bilingual keyboard, and some of the keys are in the wrong place. I had to configure it in Windows as a French keyboard before all the keys worked right. I do like the extra symbols they squeezed onto keyboard. You hold down the Alt Car key and type a key to get the expanded character set. I HATE that the left shift key is half the width of any regular shift key.

Some might say I type gibberish all the time, to whom I say pfft.

Re: The Galaxy Tales - Dirk B.

I don't have an equation and Amy's right... a small planet cannot sustain planetary rings however there's no reason some moon didn't have a collision and get powderized, forming rings that only last 2-3000 years

71

Re: The Galaxy Tales - Dirk B.

K, can you explain the 'cannot sustain rings' in terms that a long-ago engineering school graduate can grasp?

Re: The Galaxy Tales - Dirk B.

I googled this. There is a Roche limit around planets that determines whether or not you get rings vs moons. If you have debris within the Roche limit, the tidal forces of the planet keep the debris from coalescing (the tidal forces exceed the force of gravity). Outside the Roche, you get moons. The Earth's Roche limit is 10,000 km, so based solely on that, we could have stable rings between the Earth`s surface (6,400 km) and the limit. However, other factors affect the formation of rings, so those might play a role (e.g., melting of icy debris too close to the sun, the effect of gravity of any nearby moons, the density of a planet, among others). This is googled info, so take it with a grain of salt.

I'm curious to know why rings around smaller planets would only last 2000-3000 years.

Re: The Galaxy Tales - Dirk B.

re "sustain rings"

I don't wish to be mistaken for a someone knowledgeable because I'm groping in the dark as much as the GOP, but I can guess that rings can't stay up indefinitely due to cosmic particle rain. Therefore, to sustain rings over millions of years, a planet must be large enough to capture new matter and pulverize it (eg massive enough to batter captured planetoids and mash them to pulp), thereby adding to the ring system.

I agree Earth likely has a ring... but the particles are probably too small for our instruments to detect, especially when we aren't looking for them. Besides, we can't even find planet Vulcan within our own system. We really have no business spotting a celetial object three times our own diameter that might be sitting under our noses.

-K

Re: The Galaxy Tales - Dirk B.

Now that I think of it, once you have a reasonable ring going, new matter that coincides with it for a few decades (eg the cosmic blink of an eye) will be worn down with the efficiency of coarse sandpaper. Ejected particulate matter will benefit the ring. A win for everyone except, possibly, the captured planetoid

Re: The Galaxy Tales - Dirk B.

You guys got big brains and that is kool. 

K said I was right. I got it in print. AGAIN.