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Gatecrashing errata!

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babayaga babayaga's picture
Gatecrashing errata!
Aquanaut morphs (p.150) "can safely descend to about 200 meters depth (roughly 6 atmospheres of pressure)". The pressure corresponding to a given depth obviously depends on local gravity. On Earth, every 10 m is approximately an extra atmosphere. My best bet is that someone looked for the *extra* pressure (in addition to the baseline 1 atm at sea level) at 200 *feet* (which is roughly 60 m) and got 6 atmospheres. As a sidenote, many humans in good health with training can dive 60 m. Since the world record without any pressure adjusting suit exceeds, I believe, 150m breathing compressed air and 300m with other gas mixtures (and humpback whales can dive that deep just holding their breath) ... well, 200 m (some 20 atm) seems about the right limit for a splicer with basic biomods. There are fish that can survive at 5000+m depths.
lucyfersam lucyfersam's picture
Re: Gatecrashing errata!
The maximum safe recreational dive depth for a human is considered to be 40m, and the time that can be safely spent there is less than 5 minutes. Beyond that, you risk serious decompression issues. Dolphins dive to around 200m (the maximum ever recorded is actually 300m, but that is not common or a depth they stay at for long). The Aquanaut morph can spend an indefinite length of time at 200m without problems, I think that is pretty good. There is a huge difference between a morph that can go from 0-200m below sea level without problems and a fish that lives at 5000m below sea level - if you bring that fish to 200m below sea level it will die. A 0-200m range is pretty good for a humanoid morph to reliably do with no repercussions, if you want a morph that can have a larger range it will probably have to abandon humanoid characteristics and be a full on whale style morph.
Draconis Draconis's picture
Re: Gatecrashing errata!
100 meters with no swimming aids, just recently on Dec. 13th. Damn impressive. http://www.ouramazingplanet.com/freediving-world-record-broken-101214-0851/

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Gullinbursti Gullinbursti's picture
Re: Gatecrashing errata!
There was a slight grammer error I spotted, need to look through again but it was along the lines of "despite their please" rather then "despite their pleas" I'll trawl through where I think it is and give a page refence in a few minutes.
- Australian Newbie -
Gullinbursti Gullinbursti's picture
Re: Gatecrashing errata!
Page 30 in the "Issues and Ethics of First-Contact Scenarios" box out it has... "In both the inner and outer system, however, these please for caution..." I assume it is meant to be "In both the inner and outer system, however, these pleas for caution..."
- Australian Newbie -
anth anth's picture
Re: Gatecrashing errata!
First off thanks for Gatecrashing, I'm very impressed with it. As others have said about the Aquanaut: 200 meters is a lot more than 6 atmospheres of pressure (assuming earth-like conditions) and 200 feet would be about right for that pressure. For a morph designed for use underwater this isn't very impressive, and dolphins do better despite lacking gills, so I'm inclined to think it was meant to be 200m. Admittedly it looks like Aquanauts can stay at those depths long term rather than just the brief dive a dolphin or normal human could do without lots of equipment and decompression time. What is considered a safe depth for recreational dives varies. 40m, and no compulsory deco stops, is the limit for PADI and probably all the other big American dive training organisations. The British Sub Aqua Club, on the other hand, have 50m as part of their normal qualification progression (ie not as a speciality course for those wanting to go deep), and deco is taught for the earlier qualification level which has a max depth of 35m. As the morph is breathing liquid rather than gas there won't be a problem with narcosis. A scuba diver at 40m on air will be breathing a gas with partial pressures of around 1.1 bar (or atmospheres) of oxygen and 3.9 of nitrogen. All this extra gas impairs brain function for reasons we don't understand, and the effects can be reduced by changing the gas mix. An aquanaut on the other hand will only have the oxygen that gets extracted from the water, hopefully somewhere around 0.21 bar, plus the 0.79 bar of nitrogen that was in its lungs from the surface. Even if an Oxygen Reserve implant is added I'd expect it to keep the oxygen partial pressure at a set level. I guess it is a bit more complicated as either the lungs need to compress a lot or the chest needs to be able to withstand the pressure difference between the inside and outside of the chest. If it is the former we're back to a high partial pressure for nitrogen. I've said far too much about this given that I'm just going to assume it is 200m, and that the text within the brackets should be "roughly 21 atmospheres of pressure" or "roughly 20 atmospheres of extra pressure". Anyway I noticed a few minor issues ... Page 87 The infobox says Corse is a "Tidally-Locked Rocky Jovian Moon". The main text says "Just a big icy rock, part of a thin, open ring system around a gas giant that happens to rise dramatically over the horizon a few minutes after I arrive." There shouldn't be a planet rise if it is tidally locked. Page 139 The infobox for Wormwood says "Gravity: Micro (0.02 max)". The main text says "The asteroid rotates and the regions outside of the central gate area experience a gentle microgravity, up to 0.2 g." Looks like one of these has the decimal point in the wrong place. Page 159 The Life Support Pack has a cost of "[Medium]", it should probably be "[Moderate]".
Yerameyahu Yerameyahu's picture
Re: Gatecrashing errata!
I dunno if this goes here, and it's kind of a bump, but instead of making a new thread… I have a question about Thrust Vector. The contradiction is in Gatecrashing, so it's errata-relevant. The core book describes this as vectored air-breathing jet/fan engines (like a Harrier), right? It also says they're used with wings for actual flight. Ignoring questions like 'jesus, how loud and oxygen-eating are these things?', I'm wondering about the Kite morph in Gatecrashing. Its description says this: "In vacuum, it can drive itself with thrust-vector nozzles." Huh? (Interestingly, this *doesn't* contradict the letter of the core rules; though many other systems explicitly say 'Doesn't work in vacuum', Thrust Vector doesn't.) In Sunward, the Sundiver also has Thrust Vector, though it mentions a "powerful electromagnetic propulsion system that allows them to skate along solar magnetic lines of force"; I assume it uses that in space, and it's more plot device than mod. A follow up question is, 'does any kind of morph flight work in vacuum?' I'm just curious. All I've seen is the Gas Jet System in Sunward, which is not a movement system.
Myrmidont Myrmidont's picture
Gatecrashing errata - query
Hi all, recent uplift here. Just a quick query/possible errata. Gatecrashing, p163 The Crasher Truck is listed as having all of the equipment of a GEV (EP, p348) minus hydrogen engines, which includes "several desktop CMs", each of which is [Expensive], not to mention all the other included features. However, a Crasher Truck's price is listed as [High]. Shouldn't the price of a Crasher Truck also be [Expensive], at least?
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jackgraham jackgraham's picture
necrooooomaaaaancyyyyy!
Hey guys, we've got an official Gatecrashing errata thread going here. We'll pull in your stuff from this thread, but please let us know if you found anything else: http://eclipsephase.com/gatecrashing-reprint-your-erratas-show-us-them
J A C K   G R A H A M :: Hooray for Earth!   http://eclipsephase.com :: twitter @jackgraham @faketsr :: Google+Jack Graham