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Last Flight Out

brr.fyi

271–280 of 322 posts

Re: Last Flight Out

#271
post #252

These stories about the logistics at Amundsen-Scott are a fascinating glimpse at the level of logistical complexity that'd be required for an off-planet (Moon, Mars...) base. Every time I see people get excited about Martian human habitation, I note a lack of discussion of the essential intermediate step: a fully self-sustaining base in the most inhospitable parts of Earth. Where are the Biosphere++ projects? And Amu…

Martian equator has milder temperatures, more sunlight (no polar night), but has worse access to water, and none to breathable air. I'm certain that a self-contained habitation for a year is a solvable problem; nuclear submarines can be away in the ocean for a comparable time. A habitat self-sustained for potentially indefinite time (at least half century), while producing its own food and oxygen, is a much taller or…

I'm no nuclear engineer, but my anecdotal experience has been that nuclear plants need access to large amounts of water for cooling.

I'm assuming a Martian reactor would need some other approach give the relative scarcity of water? Sure ambient temperatures are lower, but equally the atmosphere is not very dense.

Thinking about it, burning diesel is also not attractive (lack of oxygen) and solar is weaker than earth. But I'm not seeing a lot of alternatives to solar...

Re: Last Flight Out

#272

My favorite writing about Antarctica is "Big Dead Place": https://www.abc.net.au/news/2018-04-30/big-dead-place-the-wi... You can find the blog in the Internet Archive: https://web.archive.org/web/20120402141259/http://www.bigdea... or grab the book. Silver medal to Maciej for this one: https://idlewords.com/2016/05/shuffleboard_at_mcmurdo.htm

Big Dead Place was great: it gives you a great idea of the terrain, the characters who come through, and the politics, all from the perspective of a grunt who works there.

Re: Last Flight Out

#273
post #252

These stories about the logistics at Amundsen-Scott are a fascinating glimpse at the level of logistical complexity that'd be required for an off-planet (Moon, Mars...) base. Every time I see people get excited about Martian human habitation, I note a lack of discussion of the essential intermediate step: a fully self-sustaining base in the most inhospitable parts of Earth. Where are the Biosphere++ projects? And Amu…

Martian equator has milder temperatures, more sunlight (no polar night), but has worse access to water, and none to breathable air. I'm certain that a self-contained habitation for a year is a solvable problem; nuclear submarines can be away in the ocean for a comparable time. A habitat self-sustained for potentially indefinite time (at least half century), while producing its own food and oxygen, is a much taller or…

Don’t nuclear subs make their oxygen by electrolyzing seawater? Mars habitat would be a whole different problem from subs.

Re: Last Flight Out

#274
post #154

Earlier quoted context omitted.

>if you read the story of the western colonizers, it was brutal especially if they couldn't get resupplied. For all of the places western colonizers went, there were always resources that Mars will never have. Skipping past the obvious lack of atmosphere, there are no food sources. While they have found ice meaning some water is available, it is actually potable? Trying to compare early colonizers of any place on Ear…

THe point is to say that if we can't win the game on easy mode, probably best not to try to win it on hard mode.

That's a fun analogy. I feel like Musk is running through everyone's Mars mission planning meetings yelling "LeeeRoooy Jenkins!!!"

Re: Last Flight Out

#275
post #252

Earlier quoted context omitted.

Martian equator has milder temperatures, more sunlight (no polar night), but has worse access to water, and none to breathable air. I'm certain that a self-contained habitation for a year is a solvable problem; nuclear submarines can be away in the ocean for a comparable time. A habitat self-sustained for potentially indefinite time (at least half century), while producing its own food and oxygen, is a much taller or…

I'm no nuclear engineer, but my anecdotal experience has been that nuclear plants need access to large amounts of water for cooling. I'm assuming a Martian reactor would need some other approach give the relative scarcity of water? Sure ambient temperatures are lower, but equally the atmosphere is not very dense. Thinking about it, burning diesel is also not attractive (lack of oxygen) and solar is weaker than earth.…

Primary cooling could be molten salt or liquid metal but unless you take the power out through the Seebeck effect like RTG’s on space probes, you still need water to make steam for turbines, I guess.

Re: Last Flight Out

#276

Earlier quoted context omitted.

Jesus christ. "In one online survey published in PLOS ONE and covered by Science in 2014, 71% of 512 female respondents reported being sexually harassed during fieldwork; 84% of them were trainees." "In the NSF report, one interviewee said she’d been told on her first day at McMurdo to stay clear of a certain building unless she “wanted to be raped.” Another woman said she felt like she was seen as “prey” no matter w…

How do you become that evil?

Be surrounded by enablers who look the other way.

Power + no responsibility = excellent environment for sociopaths.

Re: Last Flight Out

#277

These stories about the logistics at Amundsen-Scott are a fascinating glimpse at the level of logistical complexity that'd be required for an off-planet (Moon, Mars...) base. Every time I see people get excited about Martian human habitation, I note a lack of discussion of the essential intermediate step: a fully self-sustaining base in the most inhospitable parts of Earth. Where are the Biosphere++ projects? And Amu…

[dead]

Re: Last Flight Out

#278
post #252

Earlier quoted context omitted.

Martian equator has milder temperatures, more sunlight (no polar night), but has worse access to water, and none to breathable air. I'm certain that a self-contained habitation for a year is a solvable problem; nuclear submarines can be away in the ocean for a comparable time. A habitat self-sustained for potentially indefinite time (at least half century), while producing its own food and oxygen, is a much taller or…

> Unlike Amundsen's, such a station can have a nuclear reactor, with decades worth of fuel. Tangentially, McMurdo (the coastal Antarctica base) did have a nuclear reactor for a bit. It didn't go great. http://large.stanford.edu/courses/2014/ph241/reid2/

An unfortunate early design. Hopefully the engineering knowledge and access to far better design tools that have developed in the interleaving ~50 years would allow for a much better design today.

Though my hopes must be tempered by the prospect of greed. It would be better if the government(s) created an open design which could reuse off the shelf or components that any corporation could compete to create.

Re: Last Flight Out

#279
post #217
post #128

Earlier quoted context omitted.

I remember watching this. Turns out BBC Natural History documentaries are more theater than just documentaries. If you watch the "making of" clips at the end of some of the series, you do get the sense that they may not be just captured natural footage as much as highly-scripted activities with the actions of the cameramen, crew, etc. edited out. Still fun to watch, but isn't being manipulated as a viewer disingenuou…

At this point I can't really enjoy documentaries like that anymore. I keep thinking "they brought a steadicam down there?" or "where is all that light coming from?" The fourth wall is thoroughly broken. Thanks, I'd rather watch a poorly lit Youtube video with a guy talking to his Gopro. I wonder what the equivalent of that would be for animal documentaries.

[deleted]

Re: Last Flight Out

#280
post #2

International rewatch "The Thing" day

Now I wonder if they watch other Antarctic media. I'd recommend "A Place Further than the Universe" but I have no idea if it's something they'd want to watch.

Perhaps? It's a great show. https://cough.cocolog-nifty.com/.shared/image.html?/photos/u...
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