Realistic, near-term, rotating Space Station

[LMT]

AG exercise only with limited head motion, which would limit the vestibular effects of the short radius (< 4 m).

A common mistake. Limiting head motion harms adaptation, making the effects worse and/or more prolonged.

In research over the last 20+yrs, early repeated movement has proven critical to adaptation. See Lackner/DiZio's research.

[I suspect the assumption that limiting head-motion reduces the effects of coriolis is why early spin-gravity research produced such inconsistent results.]

You'll notice Airbus designed the LOOP centrifuge without free motion, limiting motion with tiny fixed-orientation AG boxes.  Lackner and DiZio point out unresolved issues with short-radius adaptation, probably similar to Airbus considerations:

5. Unresolved issues

Many key issues remain unresolved concerning the adaptability of human performance in rotating artificial gravity environments. These include:

1. Locomotion and whole body movement control.

2. Object manipulation and transport, control of Coriolis forces and weight changes.

3. Ability to maintain simultaneous adaptation to rotating and non-rotating environments and to move between them without severe performance disruption.

4. Sensory-motor principles and rules governing adaptation, transfer of adaptation, and retention of adaptation in different inertial and non-inertial force environments.

[lamontagne]

Not that they copied me and ACE

I'm confused. Who is "they" in this sentence?

From the linked article:

NASASpaceFlight.com forum members Ace (Rick Kiessig from New Zealand) and lamontagne (Canadian design engineer Michel Lamontagne) have created a concept for the interior layout of SpaceX's 100-passenger Starship

Sorry, just referring to the overall design of the LOOP station in LMT's post just before mine.  The white and blue look.

[JohnFornaro]

Here's a first pass at a model of my ring station.

Michel:  If you could paste my model side by side with yours?

Remember to strip the zip!

[lamontagne]

Here's a first pass at a model of my ring station.

Michel:  If you could paste my model side by side with yours?

Remember to strip the zip!

Hi John, can you save as a Sketchup 2017 file?  Then i will be able to render it more effectively.

[JohnFornaro]

Here's a first pass at a model of my ring station.

Michel:  If you could paste my model side by side with yours?

Remember to strip the zip!

Hi John, can you save as a Sketchup 2017 file?  Then i will be able to render it more effectively.

It is a sketchup file.  Take off the .zip extension.  The site OS won't accept .SKP files.

[lamontagne]

Here's a first pass at a model of my ring station.

Michel:  If you could paste my model side by side with yours?

Remember to strip the zip!

Hi John, can you save as a Sketchup 2017 file?  Then i will be able to render it more effectively.

It is a sketchup file.  Take off the .zip extension.  The site OS won't accept .SKP files.

Windows tells me the .zip file is empty.  There may be an extension mistake?  Or just email me at [email protected]

[Asteroza]

Here's a first pass at a model of my ring station.

Michel:  If you could paste my model side by side with yours?

Remember to strip the zip!

Hi John, can you save as a Sketchup 2017 file?  Then i will be able to render it more effectively.

It is a sketchup file.  Take off the .zip extension.  The site OS won't accept .SKP files.

Windows tells me the .zip file is empty.  There may be an extension mistake?  Or just email me at [email protected]

The .zip suffix is fake to fool this forum's attachment filter. Edit the name of the downloaded file directly to remove the suffix and you are left with the original name.skp file which should be what you want. Windows by default doesn't show some file name extension suffixes, so you may need to change the explorer view options (folder options -> "view" tab ->  uncheck "hide extensions for known file types") to forcibly show suffixes.

[lamontagne]

Finally got it loaded!

[lamontagne]

A pair of rings

[lamontagne]

Close up of John's station

[Paul451]

Michel:  If you could paste my model side by side with yours?
Remember to strip the zip!

Hi John, can you save as a Sketchup 2017 file?  Then i will be able to render it more effectively.

It is a sketchup file.  Take off the .zip extension.  The site OS won't accept .SKP files.

Windows tells me the .zip file is empty.  There may be an extension mistake?  Or just email me at [email protected]

The .zip suffix is fake to fool this forum's attachment filter. Edit the name of the downloaded file directly to remove the suffix and you are left with the original name.skp file which should be what you want. Windows by default doesn't show some file name extension suffixes, so you may need to change the explorer view options (folder options -> "view" tab ->  uncheck "hide extensions for known file types") to forcibly show suffixes.

Of course, instead of trying to "trick" the forum, had John just saved it as an actual zip file before posting it, not only would it have worked out-of-the-box for Michel, but it would have saved 2/3rds of the file-size. (Sketchup files are highly compressible.) There's a reason the forum wants you to save non-image/non-document formats as .zip.

[JohnFornaro]

Of course, instead of trying to "trick" the forum, had John just saved it as an actual zip file before posting it, not only would it have worked out-of-the-box for Michel, but it would have saved 2/3rds of the file-size. (Sketchup files are highly compressible.) There's a reason the forum wants you to save non-image/non-document formats as .zip.

Dang.  This is what I call screen myopia.  I use zip all the time.  Apparently I was sitting too close to the screen to see the obvious solution to a simple problem.

[JohnFornaro]

Finally got it loaded!

Hah!  Thanks. Nice to see both of them side by side. 

Next time, I'll zip before attaching!

First thing I notice is that you have several times the area of PV cells than I do.

[lamontagne]

Finally got it loaded!

Hah!  Thanks. Nice to see both of them side by side. 

Next time, I'll zip before attaching!

First thing I notice is that you have several times the area of PV cells than I do.

I've settled for very inefficient food production numbers, so everything is very lossy.  Plus I'm located at Mars, so the solar constant is about half.
Sadly, the UAE Mars probe has just measured Deimos for various parameters and from what I understand the moons may be pretty dry.  A bit like the Earth's moon.  That kind of puts a wrench in the works, as I was counting on water and carbon from Phobos, ideally some nitrogen.  Silica is fine for shielding but not much good for the rest.

[JohnFornaro]

Finally got it loaded!

Nice to see both of them side by side.   Next time, I'll zip before attaching!  First thing I notice is that you have several times the area of PV cells than I do.

I've settled for very inefficient food production numbers, so everything is very lossy.  Plus I'm located at Mars, so the solar constant is about half.
Sadly, the UAE Mars probe has just measured Deimos for various parameters and from what I understand the moons may be pretty dry.  ...

I had forgotten that you are further out in left field than I am!

[LMT]

UAE Mars probe has just measured Deimos for various parameters and from what I understand the moons may be pretty dry.  A bit like the Earth's moon.

OT, but previously Deimos hydration was seen at 2.9 microns.  Hope EMIRS can't see at wavelengths shorter than 6 microns.  Which Deimos hydration signature would have been detected?  Official statement?  Alt thread.

[lamontagne]

UAE Mars probe has just measured Deimos for various parameters and from what I understand the moons may be pretty dry.  A bit like the Earth's moon.

OT, but previously Deimos hydration was seen at 2.9 microns.  Hope EMIRS can't see at wavelengths shorter than 6 microns.  Which Deimos hydration signature would have been detected?  Official statement?  Alt thread.

Nothing official yet, just hints.  Waiting for better data, or the first papers.
https://spaceref.com/science-and-exploration/uae-space-agency-releases-first-ever-high-res-images-of-mars-moon-deimos/

My understanding was that if the Moons came from Mars as the result of an impact, they would be dry, if they came as captured asteroids, they might be wetter.

[lamontagne]

A dumbbell station paper that should please Twark_Main.

https://arxiv.org/abs/2004.02241

[LMT]

UAE Mars probe has just measured Deimos for various parameters and from what I understand the moons may be pretty dry.  A bit like the Earth's moon.

OT, but previously Deimos hydration was seen at 2.9 microns.  Hope EMIRS can't see at wavelengths shorter than 6 microns.  Which Deimos hydration signature would have been detected?  Official statement?  Alt thread.

Nothing official yet, just hints.  Waiting for better data, or the first papers.

The better data is the actual hydration data.  OT.

[LMT]

A dumbbell station paper that should please Twark_Main.

https://arxiv.org/abs/2004.02241