RSS iconTwitter iconFacebook icon

The Trek BBS title image

The Trek BBS statistics

Threads: 141,395
Posts: 5,505,570
Members: 25,130
Currently online: 458
Newest member: OneOfFour

TrekToday headlines

Retro Review: The Emperor’s New Cloak
By: Michelle on Dec 20

Star Trek Opera
By: T'Bonz on Dec 19

New Abrams Project
By: T'Bonz on Dec 18

IDW Publishing March 2015 Comics
By: T'Bonz on Dec 17

Paramount Star Trek 3 Expectations
By: T'Bonz on Dec 17

Star Trek #39 Sneak Peek
By: T'Bonz on Dec 16

Star Trek 3 Potential Director Shortlist
By: T'Bonz on Dec 16

Official Starships Collection Update
By: T'Bonz on Dec 15

Retro Review: Prodigal Daughter
By: Michelle on Dec 13

Sindicate Lager To Debut In The US Next Week
By: T'Bonz on Dec 12


Welcome! The Trek BBS is the number one place to chat about Star Trek with like-minded fans. Please login to see our full range of forums as well as the ability to send and receive private messages, track your favourite topics and of course join in the discussions.

If you are a new visitor, join us for free. If you are an existing member please login below. Note: for members who joined under our old messageboard system, please login with your display name not your login name.


Go Back   The Trek BBS > Entertainment & Interests > Science and Technology

Science and Technology "Somewhere, something incredible is waiting to be known." - Carl Sagan.

Reply
 
Thread Tools
Old July 22 2012, 05:40 AM   #16
Gary7
Rear Admiral
 
Gary7's Avatar
 
Location: Near Manhattan ··· in an alternate reality
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Highly qualified engineers collaborated on this with thousands of hours applied to reason and come up with a plausible solution. However, I'm sure they didn't think of everything. Who knows, maybe some layman ideas could provide a novel solution that they couldn't see, being too close to the problem?

The airbag approach won't work because the payload is too heavy. Due to the thin atmosphere, the parachutes will slow the payload down to 200 mph but no slower. Thus, retro rockets are necessary. Those have to be on the reentry capsule (lander). The dust problem was probably too pervasive to consider a "dust cap". Once you've got such a thing in place, it needs to be ejected. Maybe they could have invested more money on special servo motor controlled doors for each entry point that might be affected by dust? But that would add to weight and yet another slew of devices that could go wrong.

The tether is kind of a nice idea, in that there is an inherent buffer between the landing craft and the rover. You don't have to worry about internal cushioning of the rover against the inside of the crane, to guard against the inertial shock.

However, if dust is such a problem, why not have the lander touch down with the rover attached underneath? The lander would act as a canopy to keep dust from settling down on the top. But... the dust problem may be lateral as well. The only thing that bothers me is that Mars DOES have an atmosphere, albeit a thin one, and there is wind. Wouldn't a wind storm present the same dust problem?
__________________
Remembering Ensign Mallory.
Gary7 is offline   Reply With Quote
Old July 23 2012, 09:59 PM   #17
publiusr
Commodore
 
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

The ultimate nightmare scenario would be for everything to almost work--the reel to deploy cables fine without snags--the rover deploys its wheels--then all the lines...save one...detach. When the crane jets away--it yanks the rover enough to trash it.

Murphy being what it is and all.
publiusr is offline   Reply With Quote
Old July 24 2012, 03:20 AM   #18
Wanderlust
Captain
 
Wanderlust's Avatar
 
Location: A Checklist
View Wanderlust's Twitter Profile
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

publiusr wrote: View Post
The ultimate nightmare scenario would be for everything to almost work--the reel to deploy cables fine without snags--the rover deploys its wheels--then all the lines...save one...detach. When the crane jets away--it yanks the rover enough to trash it.

Murphy being what it is and all.
i keep thinking of that everytime i think about this mission

anyway, 13 days!
__________________
Gradatim Ferociter
Wanderlust is offline   Reply With Quote
Old July 24 2012, 03:34 AM   #19
gturner
Admiral
 
Location: Kentucky
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

^ Or what if everything works perfectly and it sets down in a tiny crater with unclimbable walls.
gturner is offline   Reply With Quote
Old July 29 2012, 12:35 AM   #20
M'Sharak
Definitely Herbert. Maybe.
 
M'Sharak's Avatar
 
Location: Terra Inlandia
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

https://twitter.com/marsroverdriver/...340032/photo/1
__________________
The trouble ain't that there is too many fools, but
that the lightning ain't distributed right.
— Mark Twain
M'Sharak is offline   Reply With Quote
Old July 29 2012, 07:26 PM   #21
Crazy Eddie
Rear Admiral
 
Crazy Eddie's Avatar
 
Location: I'm in your ___, ___ing your ___
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

gturner wrote: View Post
^ Or what if everything works perfectly and it sets down in a tiny crater with unclimbable walls.
Or worse: the landing works perfectly, but the rover sets down on an oversized rock and immediately rolls over upside-down seconds after landing.
__________________
The Complete Illustrated Guide to Starfleet - Online Now!
Crazy Eddie is offline   Reply With Quote
Old July 29 2012, 10:10 PM   #22
sojourner
Admiral
 
sojourner's Avatar
 
Location: I'm at WKRP
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Or during the communication time lag Martians strip the thing and leave the chassis on blocks!
__________________
Baby, you and me were never meant to be, just maybe think of me once in a while...
sojourner is offline   Reply With Quote
Old July 29 2012, 10:56 PM   #23
Crazy Eddie
Rear Admiral
 
Crazy Eddie's Avatar
 
Location: I'm in your ___, ___ing your ___
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Dude, they're landing on Mars, not Detroit.
__________________
The Complete Illustrated Guide to Starfleet - Online Now!
Crazy Eddie is offline   Reply With Quote
Old August 2 2012, 07:10 PM   #24
JanewayRulz!
Vice Admiral
 
JanewayRulz!'s Avatar
 
Location: North America
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

newtype_alpha wrote: View Post
Dude, they're landing on Mars, not Detroit.

Makes me think of that old joke, how can you ID a redneck Jedi?

His X-wing fighter is jacked up on cinderblocks on the front lawn.

Who knows, maybe some layman ideas could provide a novel solution that they couldn't see, being too close to the problem?
So true... lets hope everyone is using the metric system this time.

And the media push rolls on.


CBS: http://www.cbsnews.com/8301-205_162-...-never-before/

JPL: http://www.wired.com/wiredscience/20...ive-mars-show/

Times Square, anyone? http://www.msnbc.msn.com/id/48428167...science-space/
__________________
"But life is a battle: may we all be enabled to fight it well!" Charlotte Bronte
JanewayRulz! is offline   Reply With Quote
Old August 3 2012, 08:54 AM   #25
NebulaClassGuy
Lieutenant Commander
 
Location: Dallas, Texas
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Does anybody know if any of the news networks like CNN, FOX, BBC, or MSNBC will be doing any live coverage of the rover landing?
NebulaClassGuy is offline   Reply With Quote
Old August 3 2012, 03:42 PM   #26
JanewayRulz!
Vice Admiral
 
JanewayRulz!'s Avatar
 
Location: North America
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Who knows, do you get the NASA channel? Its on the basic package with DISH network.
__________________
"But life is a battle: may we all be enabled to fight it well!" Charlotte Bronte
JanewayRulz! is offline   Reply With Quote
Old August 3 2012, 03:56 PM   #27
Warp Core Breach
Commodore
 
Warp Core Breach's Avatar
 
Location: Over there
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

NebulaClassGuy wrote: View Post
Does anybody know if any of the news networks like CNN, FOX, BBC, or MSNBC will be doing any live coverage of the rover landing?
Not a chance in hell. Your best bet if you don't get NASATV on your cable/satellite package would be to find a stream online. There should be plenty available.
Warp Core Breach is offline   Reply With Quote
Old August 3 2012, 06:20 PM   #28
NebulaClassGuy
Lieutenant Commander
 
Location: Dallas, Texas
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Hmmm... I don't think I get NASA as part of the package I have. I'll check. If anything, maybe NASA or JPL will have a live video stream on their websites.
NebulaClassGuy is offline   Reply With Quote
Old August 3 2012, 10:06 PM   #29
JanewayRulz!
Vice Admiral
 
JanewayRulz!'s Avatar
 
Location: North America
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Not Mars Rover related, but encouraging all the same...

http://www.huffingtonpost.com/2012/0...n_1739058.html
__________________
"But life is a battle: may we all be enabled to fight it well!" Charlotte Bronte
JanewayRulz! is offline   Reply With Quote
Old August 4 2012, 04:56 AM   #30
RobertVA
Fleet Captain
 
RobertVA's Avatar
 
Location: Virginia USA
Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Warp Core Breach wrote: View Post
NebulaClassGuy wrote: View Post
Does anybody know if any of the news networks like CNN, FOX, BBC, or MSNBC will be doing any live coverage of the rover landing?
Not a chance in hell. Your best bet if you don't get NASATV on your cable/satellite package would be to find a stream online. There should be plenty available.
Wired Science:
Cross Your Fingers: How to Watch NASA’s Mars Rover Land on Sunday

http://www.wired.com/wiredscience/20...o-watch-rover/
RobertVA is offline   Reply With Quote
Reply

Bookmarks

Tags
mars, nasa

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT +1. The time now is 02:01 PM.

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
FireFox 2+ or Internet Explorer 7+ highly recommended.