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NH, USA
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Posted: 12/23/2018 3:01:42 PM EDT
[Last Edit: Neotopiaman]
Apparently during development of the Raptor rocket engine SpaceX discovered a new super-strong cryoformed Stainless steel type alloy that allowed them to skip building it out of composites and accelerate development.
They are now building the grasshopper-type upper stage test article in Texas: 
Starship/BFR will be the largest, most powerful rocket ever built |
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Posted: 5/8/2021 5:23:07 PM EDT
[#1]
Quote HistoryOriginally Posted By vmpglenn: Normally I'd agree, but apparently the very smart people in Star Trek can control gravity and inertia, so who cares where they build it...  The Expanse has ruined most of SF for me, unless it's set in the very, very far future or in a clearly alternate universe with different physical laws. Quote HistoryOriginally Posted By vmpglenn: Originally Posted By webtaz99: That was pure Detroit BS. They would build that puppy in space, for many reasons. Normally I'd agree, but apparently the very smart people in Star Trek can control gravity and inertia, so who cares where they build it... The Expanse has ruined most of SF for me, unless it's set in the very, very far future or in a clearly alternate universe with different physical laws. |
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Posted: 5/8/2021 5:34:12 PM EDT
[#2]
In building this model I am learning just how massive starship is.
Are there any sources on what the plans for the interior are? I am also curious about RCS placement. https://www.ar15.com/forums/general/Designing-and-Building-a-LEGO-SpaceX-Starship/5-2450800/ |
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ZWE
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Posted: 5/8/2021 5:43:50 PM EDT
[#3]
Quote HistoryOriginally Posted By SGT-Fish: The air gap that most of us imagined looks to be filled with a ceramic wool type of insulation. So there is a gap that would allow for the flexibility you are describing. I was more worried about the tank skin expanding with pressure and temperature. But those struts in the tiles must help with that a lot. Looks like they are molded into the tiles. Pretty neat but may need a bit more work to get them to keep from cracking. I'm sure the engineers will figure it out. And having SN15 to study probably helps a lot. I bet they already have a new tile version for SN20 and are using up their stock These are the first tiles they've they've gotten back from a fully assembled high altitude flight it's almost a good thing they had some failures on them here, shows how they can improve. The tile people have probably been twittling their thumbs |
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Posted: 5/8/2021 6:17:20 PM EDT
[#4]
Quote HistoryOriginally Posted By Obo2: These are the first tiles they've they've gotten back from a fully assembled high altitude flight it's almost a good thing they had some failures on them here, shows how they can improve. The tile people have probably been twittling their thumbs LOL - I wonder which Elon the tile engineers got: Cheerleader "move fast and break things" Elon or "death stare you f*cked up" Elon. If you read Liftoff, the book that tells the story of SpaceX's early years (mostly thru the 1st orbital flight of Falcon 1) you get vivid examples of both Elon. |
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WI, USA
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Posted: 5/8/2021 6:30:43 PM EDT
[#5]
Quote HistoryOriginally Posted By PraesidiumFabrica: In building this model I am learning just how massive starship is. Are there any sources on what the plans for the interior are? I am also curious about RCS placement. https://www.ar15.com/forums/general/Designing-and-Building-a-LEGO-SpaceX-Starship/5-2450800/ When I was talking about Starship with my kid, I ran a tape measure out to 30 feet. If you want to have your mind blown, make a 30ft circle in your front yard. That's the footprint of the Starship. |
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Posted: 5/10/2021 8:02:02 AM EDT
[#6]
Monday morning bump.
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Posted: 5/10/2021 8:07:48 AM EDT
[#7]
Quote HistoryOriginally Posted By Skibane: They should land one on Jeff Bezos Fify |
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Posted: 5/10/2021 8:12:51 AM EDT
[#8]
Anyone here have the L2 subscription on NASASpaceflight forum? Is it worth it?
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OK, USA
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Posted: 5/10/2021 8:30:54 AM EDT
[#9]
Quote HistoryOriginally Posted By Beo: When I was talking about Starship with my kid, I ran a tape measure out to 30 feet. If you want to have your mind blown, make a 30ft circle in your front yard. That's the footprint of the Starship. Quote HistoryOriginally Posted By Beo: Originally Posted By PraesidiumFabrica: In building this model I am learning just how massive starship is. Are there any sources on what the plans for the interior are? I am also curious about RCS placement. https://www.ar15.com/forums/general/Designing-and-Building-a-LEGO-SpaceX-Starship/5-2450800/ When I was talking about Starship with my kid, I ran a tape measure out to 30 feet. If you want to have your mind blown, make a 30ft circle in your front yard. That's the footprint of the Starship. I realized it was big but didn't look up dimensions until now. SN15 is 9m in diameter and 50m tall, that's a big freaking rocket. |
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Posted: 5/10/2021 9:30:47 AM EDT
[#10]
Quote HistoryOriginally Posted By bigsapper: Anyone here have the L2 subscription on NASASpaceflight forum? Is it worth it? I've wondered the same thing. |
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Posted: 5/10/2021 10:44:07 AM EDT
[#11]
Fan rendering of Superheavy coming in for a landing:
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Posted: 5/10/2021 10:51:49 AM EDT
[#12]
That is going to be one wild situation....slight error and no catch = big boom! But when it does catch the booster, wow...out of this world!
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Posted: 5/10/2021 10:59:57 AM EDT
[#13]
Quote HistoryOriginally Posted By NukeThemTillTheyGlow: That is going to be one wild situation....slight error and no catch = big boom! But when it does catch the booster, wow...out of this world! That does seem like an awful lot of potential points of failure. |
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FL, USA
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Posted: 5/10/2021 11:04:56 AM EDT
[#14]
Quote HistoryOriginally Posted By dmnoid77: That does seem like an awful lot of potential points of failure. Quote HistoryOriginally Posted By dmnoid77: Originally Posted By NukeThemTillTheyGlow: That is going to be one wild situation....slight error and no catch = big boom! But when it does catch the booster, wow...out of this world! That does seem like an awful lot of potential points of failure. but it has the potential to save many tons of weight in landing gear and structural rigidity required to support that gear. |
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Posted: 5/10/2021 11:05:34 AM EDT
[#15]
Quote HistoryOriginally Posted By NukeThemTillTheyGlow: That is going to be one wild situation....slight error and no catch = big boom! But when it does catch the booster, wow...out of this world! It should be a lot easier to land accurately with a larger booster for several reasons: -pendulum effect -square-cube law (same wind speed will impact large booster less than small one) -accuracy itself is not relative (i.e. a CEP of 2m is a lot less in terms of % of booster diameter for a large rocket compared to a small one) |
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Posted: 5/10/2021 11:08:38 AM EDT
[#16]
Quote HistoryOriginally Posted By 3Trip: but it has the potential to save many tons of weight in landing gear and structural rigidity required to support that gear. Quote HistoryOriginally Posted By 3Trip: Originally Posted By dmnoid77: Originally Posted By NukeThemTillTheyGlow: That is going to be one wild situation....slight error and no catch = big boom! But when it does catch the booster, wow...out of this world! That does seem like an awful lot of potential points of failure. but it has the potential to save many tons of weight in landing gear and structural rigidity required to support that gear. As I keep saying. It seems more Kerbal than Kerbal. That said, it will probably be a few years before its attempted. We will have to have Starship prototypes landing exactly where intended on a pad before they attempt catching a booster. |
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ZWE
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Posted: 5/10/2021 11:53:16 AM EDT
[Last Edit: Obo2]
[#17]
Quote HistoryOriginally Posted By Hesperus: As I keep saying. It seems more Kerbal than Kerbal. That said, it will probably be a few years before its attempted. We will have to have Starship prototypes landing exactly where intended on a pad before they attempt catching a booster. Quote HistoryOriginally Posted By Hesperus: Originally Posted By 3Trip: Originally Posted By dmnoid77: Originally Posted By NukeThemTillTheyGlow: That is going to be one wild situation....slight error and no catch = big boom! But when it does catch the booster, wow...out of this world! That does seem like an awful lot of potential points of failure. but it has the potential to save many tons of weight in landing gear and structural rigidity required to support that gear. As I keep saying. It seems more Kerbal than Kerbal. That said, it will probably be a few years before its attempted. We will have to have Starship prototypes landing exactly where intended on a pad before they attempt catching a booster. not a huge fan of these robo narrated foreign videos but check out sn15s landing legs around 0:25  Failed To Load Title It may be that landing legs are a huge obstacle to overcome when it comes to superheavy. It would not surprise me to see them attempt to catch a pretty early version of the booster. The grid fins will already have a lot of structural support built in as they take a lot of force. Catching it from the top also makes for a tension load instead of compression on the entire structure which is a lot stronger. It makes a ton of sense. Not sure what sort of designs for cathing arms spacex is kicking around but it will need to have a lot of margin for error as to where the booster will land. Have seen some neat animation ideas from youtube fans. This concept was pretty neat with 3 rings with the inner two having an offset so that it can adjust to a pretty wide area and then recenter the booster.  SpaceX Super Heavy landing on a platform at sea With their push to get the vertical integration tower constructed I wouldn't be surprised to see them attempt a catch with a very early booster flight. Maybe try to make sure the first couple are landing within a margin of error while completing the construction and then go for it... I guess we'll see though |
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Posted: 5/10/2021 11:53:26 AM EDT
[#18]
Quote HistoryOriginally Posted By Neotopiaman: Fan rendering of Superheavy coming in for a landing: https://pbs.twimg.com/media/E0-sMK3WUAUSHQl?format=jpg&name=large I don't think SpaceX has shown any of their designs for the catch arm. It seems like all the fan mock ups of it are kind of... naive. They all are basically an arm mounted to a tower. The amount of force exerted on an arm like that would be tremendous. Not to mentioned the side loading put on the tower itself. I would think a pair (or even four) bridge cranes suspended either from four towers or one really big one would be better solution. The bridge cranes would open up as the booster comes in for a landing. As the bottom end passes the cranes, they could quickly close up around the booster. You could even rig them up with proximity sensors to detect how close they are to the booster to avoid touching the body. This kind of solution would allow for large variances in landing accuracy really only limited by how large you want to make the bridge cranes. I'm eager to see what SpaceX comes up with. |
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Posted: 5/10/2021 11:53:27 AM EDT
[#19]
The Dutch professor just brought up something in another rocket thread that gave me a thought.
Elon has mentioned in a few interviews that he is concerned about extinction level events, and constantly reiterates that our race has to become multiplanetary in order to maximize our chances of survival. I wonder if in the back of his mind, he's already designing a Starship vehicle specifically designed in advance to be held in reserve for long range asteroid interdiction. Maybe a pack of rocket boosters mounted orthogonal to the path in order to knock it off course? Maybe a simple bomb? One idea I've heard, but I don't know if it's viable, is that part of the asteroid could be painted white and part black in order to induce an altered spin due to solar radiation, which could deflect the orbit as well. |
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Posted: 5/10/2021 11:55:13 AM EDT
[#20]
Quote HistoryOriginally Posted By Neotopiaman: Fan rendering of Superheavy coming in for a landing: https://pbs.twimg.com/media/E0-sMK3WUAUSHQl?format=jpg&name=large Needs more soot. |
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Posted: 5/10/2021 12:00:36 PM EDT
[Last Edit: Neotopiaman]
[#21]
Quote HistoryOriginally Posted By TacticalGarand44: The Dutch professor just brought up something in another rocket thread that gave me a thought. Elon has mentioned in a few interviews that he is concerned about extinction level events, and constantly reiterates that our race has to become multiplanetary in order to maximize our chances of survival. I wonder if in the back of his mind, he's already designing a Starship vehicle specifically designed in advance to be held in reserve for long range asteroid interdiction. Maybe a pack of rocket boosters mounted orthogonal to the path in order to knock it off course? Maybe a simple bomb? One idea I've heard, but I don't know if it's viable, is that part of the asteroid could be painte d white and part black in order to induce an altered spin due to solar radiation, which could deflect the orbit as well. The best thing to use for pushing asteroids (in addition to the lift capabilities of Staship) would probably be to have the Space Force have a few thousand Nuclear shape charges (Casaba Howitzers) as a planetary defense stockpile. These are the same type of warheads that the Orion ship was supposed to use. They convert a much larger percentage of their energy to usable momentum. http://www.projectrho.com/public_html/rocket/spacegunconvent.php#shapedcharge  They'd work the same was as Orion, just instead of firing them at a pusher plate, you'd fire them at the asteroid from a predetermined distance based on size/composition/etc. |
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Posted: 5/10/2021 12:01:21 PM EDT
[#22]
Quote HistoryOriginally Posted By Obo2: not a huge fan of these robo narrated foreign videos but check out sn15s landing legs around 0:25  https://www.youtube.com/watch?v=ZKRjETty600It may be that landing legs are a huge obstacle to overcome when it comes to superheavy. It would not surprise me to see them attempt to catch a pretty early version of the booster. The grid fins will already have a lot of structural support built in as they take a lot of force. Catching it from the top also makes for a tension load instead of compression on the entire structure which is a lot stronger. It makes a ton of sense. Not sure what sort of designs for cathing arms spacex is kicking around but it will need to have a lot of margin for error as to where the booster will land. Have seen some neat animation ideas from youtube fans. This concept was pretty neat with 3 rings with the inner two having an offset so that it can adjust to a pretty wide area and then recenter the booster. https://www.youtube.com/watch?v=etm5BgSsZbEWith their push to get the vertical integration tower constructed I wouldn't be surprised to see them attempt a catch with a very early booster flight. Maybe try to make sure the first couple are landing within a margin of error while completing the construction and then go for it... I guess we'll see though Quote HistoryOriginally Posted By Obo2: Originally Posted By Hesperus: Originally Posted By 3Trip: Originally Posted By dmnoid77: Originally Posted By NukeThemTillTheyGlow: That is going to be one wild situation....slight error and no catch = big boom! But when it does catch the booster, wow...out of this world! That does seem like an awful lot of potential points of failure. but it has the potential to save many tons of weight in landing gear and structural rigidity required to support that gear. As I keep saying. It seems more Kerbal than Kerbal. That said, it will probably be a few years before its attempted. We will have to have Starship prototypes landing exactly where intended on a pad before they attempt catching a booster. not a huge fan of these robo narrated foreign videos but check out sn15s landing legs around 0:25 https://www.youtube.com/watch?v=ZKRjETty600It may be that landing legs are a huge obstacle to overcome when it comes to superheavy. It would not surprise me to see them attempt to catch a pretty early version of the booster. The grid fins will already have a lot of structural support built in as they take a lot of force. Catching it from the top also makes for a tension load instead of compression on the entire structure which is a lot stronger. It makes a ton of sense. Not sure what sort of designs for cathing arms spacex is kicking around but it will need to have a lot of margin for error as to where the booster will land. Have seen some neat animation ideas from youtube fans. This concept was pretty neat with 3 rings with the inner two having an offset so that it can adjust to a pretty wide area and then recenter the booster. https://www.youtube.com/watch?v=etm5BgSsZbEWith their push to get the vertical integration tower constructed I wouldn't be surprised to see them attempt a catch with a very early booster flight. Maybe try to make sure the first couple are landing within a margin of error while completing the construction and then go for it... I guess we'll see though That was a really cool animation. I like how it allows for precise translation and rotation of the booster after catching in order to place it on the launch mount. |
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Posted: 5/10/2021 12:09:06 PM EDT
[#23]
Quote HistoryOriginally Posted By Neotopiaman: The best thing to use for pushing asteroids (in addition to the lift capabilities of Staship) would probably be to have the Space Force have a few thousand Nuclear shape charges (Casaba Howitzers) as a planetary defense stockpile. These are the same type of warheads that the Orion ship was supposed to use. They convert a much larger percentage of their energy to usable momentum. http://www.projectrho.com/public_html/rocket/spacegunconvent.php#shapedcharge https://1.bp.blogspot.com/-uqfFr1Q3MgY/V1WLe-UNnSI/AAAAAAAAAkg/htei9zVd84ge4dj7mzFJUtYb3hGQ2UYBQCLcB/s1600/Nuclear_shaped_charge.jpg They'd work the same was as Orion, just instead of firing them at a pusher plate, you'd fire them at the asteroid from a predetermined distance based on size/composition/etc. Quote HistoryOriginally Posted By Neotopiaman: Originally Posted By TacticalGarand44: The Dutch professor just brought up something in another rocket thread that gave me a thought. Elon has mentioned in a few interviews that he is concerned about extinction level events, and constantly reiterates that our race has to become multiplanetary in order to maximize our chances of survival. I wonder if in the back of his mind, he's already designing a Starship vehicle specifically designed in advance to be held in reserve for long range asteroid interdiction. Maybe a pack of rocket boosters mounted orthogonal to the path in order to knock it off course? Maybe a simple bomb? One idea I've heard, but I don't know if it's viable, is that part of the asteroid could be painte d white and part black in order to induce an altered spin due to solar radiation, which could deflect the orbit as well. The best thing to use for pushing asteroids (in addition to the lift capabilities of Staship) would probably be to have the Space Force have a few thousand Nuclear shape charges (Casaba Howitzers) as a planetary defense stockpile. These are the same type of warheads that the Orion ship was supposed to use. They convert a much larger percentage of their energy to usable momentum. http://www.projectrho.com/public_html/rocket/spacegunconvent.php#shapedcharge https://1.bp.blogspot.com/-uqfFr1Q3MgY/V1WLe-UNnSI/AAAAAAAAAkg/htei9zVd84ge4dj7mzFJUtYb3hGQ2UYBQCLcB/s1600/Nuclear_shaped_charge.jpg They'd work the same was as Orion, just instead of firing them at a pusher plate, you'd fire them at the asteroid from a predetermined distance based on size/composition/etc. How long is that engine expected to survive after ignition? Seconds? Minutes? |
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OR, USA
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Posted: 5/10/2021 12:12:50 PM EDT
[#24]
Quote HistoryOriginally Posted By Hesperus: As I keep saying. It seems more Kerbal than Kerbal. That said, it will probably be a few years before its attempted. We will have to have Starship prototypes landing exactly where intended on a pad before they attempt catching a booster. Quote HistoryOriginally Posted By Hesperus: Originally Posted By 3Trip: Originally Posted By dmnoid77: Originally Posted By NukeThemTillTheyGlow: That is going to be one wild situation....slight error and no catch = big boom! But when it does catch the booster, wow...out of this world! That does seem like an awful lot of potential points of failure. but it has the potential to save many tons of weight in landing gear and structural rigidity required to support that gear. As I keep saying. It seems more Kerbal than Kerbal. That said, it will probably be a few years before its attempted. We will have to have Starship prototypes landing exactly where intended on a pad before they attempt catching a booster. |
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Posted: 5/10/2021 12:13:45 PM EDT
[Last Edit: Neotopiaman]
[#25]
Quote HistoryOriginally Posted By TacticalGarand44: How long is that engine expected to survive after ignition? Seconds? Minutes? Orion? Orion is a nuclear bomb pooping pogo stick using these small nuclear bombs as propellant.  You could use these same bombs to deflect asteroids |
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Posted: 5/10/2021 12:15:59 PM EDT
[#26]
Quote HistoryOriginally Posted By TacticalGarand44: How long is that engine expected to survive after ignition? Seconds? Minutes? 44 milliseconds.. |
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Posted: 5/10/2021 12:16:39 PM EDT
[#27]
Quote HistoryOriginally Posted By t75fnaco3pwzhd: I don't think SpaceX has shown any of their designs for the catch arm. It seems like all the fan mock ups of it are kind of... naive. They all are basically an arm mounted to a tower. The amount of force exerted on an arm like that would be tremendous. Not to mentioned the side loading put on the tower itself. I would think a pair (or even four) bridge cranes suspended either from four towers or one really big one would be better solution. The bridge cranes would open up as the booster comes in for a landing. As the bottom end passes the cranes, they could quickly close up around the booster. You could even rig them up with proximity sensors to detect how close they are to the booster to avoid touching the body. This kind of solution would allow for large variances in landing accuracy really only limited by how large you want to make the bridge cranes. I'm eager to see what SpaceX comes up with. Seems like they are just building a single tower so far. I don’t get it either. We’ll find out soon enough. Starship legs need a suspension system too, unless that is also caught somehow. Falcon 9 is accurate within 1/2 it’s diameter on a floating platform. Is 15’ accuracy good enough for SH and Starship? |
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ME, USA
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Posted: 5/10/2021 12:38:51 PM EDT
[#28]
The hoover they are practicing could also move sideways into a slot?
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Posted: 5/10/2021 12:47:25 PM EDT
[Last Edit: DK-Prof]
[#29]
Quote HistoryOriginally Posted By Orion_Shall_Rise: The hoover they are practicing could also move sideways into a slot? I think the hover is key here. With the Falcon cores, the suicide burn (hoverslam) means they only get one shot at landing - and they STILL get really impressive accuracy. With Starship and the Heavy Booster, they should be able to hover, and adjust (either with hot gas directional thingys, or by gimballing the raptors), so that should give them a LOT more control and precision in where they park the thing. |
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Posted: 5/10/2021 12:52:01 PM EDT
[#30]
Quote HistoryOriginally Posted By DK-Prof: I think the hover is key here. With the Falcon cores, the suicide burn (hoverslam) means they only get one shot at landing - and they STILL get really impressive accuracy. With Starship and the Heavy Booster, they should be able to hover, and adjust (either with hot gas directional thingys, or by gimballing the raptors), so that should give them a LOT more control and precision in where they park the thing. Basically doing this.  Missile defense multiple kill vehicle hover test With something the size of a building. |
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ZWE
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Posted: 5/10/2021 12:56:56 PM EDT
[Last Edit: Obo2]
[#31]
Quote HistoryOriginally Posted By DK-Prof: I think the hover is key here. With the Falcon cores, the suicide burn (hoverslam) means they only get one shot at landing - and they STILL get really impressive accuracy. With Starship and the Heavy Booster, they should be able to hover, and adjust (either with hot gas directional thingys, or by gimballing the raptors), so that should give them a LOT more control and precision in where they park the thing. one things I found really interesting with falcon is that it supposedly comes in with a trajectory that would miss the ship in case something goes wrong, less risk to the ship. The final burn brings it on target. |
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Posted: 5/10/2021 1:04:53 PM EDT
[#32]
Quote HistoryOriginally Posted By TacticalGarand44: How long is that engine expected to survive after ignition? Seconds? Minutes? As long as an RPG lasts after its fuze ignites |
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Posted: 5/10/2021 2:01:51 PM EDT
[#33]
Puny school buses
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Posted: 5/10/2021 7:31:22 PM EDT
[#34]
Quote HistoryOriginally Posted By Neotopiaman: Orion? Orion is a nuclear bomb pooping pogo stick using these small nuclear bombs as propellant. http://4.bp.blogspot.com/-UdovDQVJrAc/U6IJCO-IwTI/AAAAAAAAIjQ/ysYcSo2pw2Y/s1600/DiscoveryOrion.gif You could use these same bombs to deflect asteroids A sort of modernized version of the German WWll V1 rocket....  |
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Posted: 5/10/2021 7:39:05 PM EDT
[#35]
Just got done listening to Eric Weinstien's presentation of geometric unity on the Into the impossible podcast.
Something Eric says at the end. Paraphrasing somewhat, "either humanities home is among the stars or nowhere and rockets aren't going to do it." I can't help but think that even if someone invented a workable antigravity drive tomorrow which was cheaper to use than a rocket. That Starship would still be a vitally important project if only because we don't have too many suitable things to stick an antigravity drive in. In the short story, The Road Not Taken we have creatures flying around in crude spaceships that need to have their oxygen replenished by regular stops on living planets. I don't think you could get away with that IRL.
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Posted: 5/10/2021 8:24:18 PM EDT
[#36]
Quote HistoryOriginally Posted By Hesperus: Just got done listening to Eric Weinstien's presentation of geometric unity on the Into the impossible podcast. Something Eric says at the end. Paraphrasing somewhat, "either humanities home is among the stars or nowhere and rockets aren't going to do it." I can't help but think that even if someone invented a workable antigravity drive tomorrow which was cheaper to use than a rocket. That Starship would still be a vitally important project if only because we don't have too many suitable things to stick an antigravity drive in. In the short story, The Road Not Taken we have creatures flying around in crude spaceships that need to have their oxygen replenished by regular stops on living planets. I don't think you could get away with that IRL. For the planets within our own solar system... Yes traditional rockets work pretty well. There's a critical cost threshold that once we surmount will result in large scale private utilization of space. Falcon 9 is really close to that threshold and Starship is designed to smash right through it. Then there's a critical mass of personnel and space craft that once we get them into space we will never cease having personnel and operating space craft in space. Because those people and craft will harvest the materials in space (asteroids) to make more of themselves. Gather enough mass and you can make large self sufficient habitats where people could live for many generations... hundreds or thousands even. If we don't head out to the Stars at this point... we could dismantle the planets into ever more of these habitats and support a tremendous amount of population. At that point why not send a few fleets of these on slow outward journeys to the stars? They won't need anything more on the way and can collect anything they want in what ever star system they arrive at. No need for habitable planets when you can make your own. |
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Posted: 5/10/2021 9:45:38 PM EDT
[#37]
Quote HistoryOriginally Posted By Master_of_Orion: There's a critical cost threshold that once we surmount will result in large scale private utilization of space. Falcon 9 is really close to that threshold and Starship is designed to smash right through it. Then there's a critical mass of personnel and space craft that once we get them into space we will never cease having personnel and operating space craft in space. Because those people and craft will harvest the materials in space (asteroids) to make more of themselves. Which means that if you're a hard-core Greenie - someone who believes that humans are a scourge on nature - you have to stop space colonization before it really gets started. You can't put that genie back in the bottle. |
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Posted: 5/10/2021 9:47:23 PM EDT
[#38]
Quote HistoryOriginally Posted By Skibane: Which means that if you're a hard-core Greenie - someone who believes that humans are a scourge on nature - you have to stop space colonization before it really gets started. You can't put that genie back in the bottle. Quote HistoryOriginally Posted By Skibane: Originally Posted By Master_of_Orion: There's a critical cost threshold that once we surmount will result in large scale private utilization of space. Falcon 9 is really close to that threshold and Starship is designed to smash right through it. Then there's a critical mass of personnel and space craft that once we get them into space we will never cease having personnel and operating space craft in space. Because those people and craft will harvest the materials in space (asteroids) to make more of themselves. Which means that if you're a hard-core Greenie - someone who believes that humans are a scourge on nature - you have to stop space colonization before it really gets started. You can't put that genie back in the bottle. I have an aunt like that. |
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Posted: 5/10/2021 10:58:27 PM EDT
[#39]
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TX, USA
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Posted: 5/10/2021 11:47:29 PM EDT
[#40]
Quote HistoryOriginally Posted By TacticalGarand44: The Dutch professor just brought up something in another rocket thread that gave me a thought. Elon has mentioned in a few interviews that he is concerned about extinction level events, and constantly reiterates that our race has to become multiplanetary in order to maximize our chances of survival. I wonder if in the back of his mind, he's already designing a Starship vehicle specifically designed in advance to be held in reserve for long range asteroid interdiction. Maybe a pack of rocket boosters mounted orthogonal to the path in order to knock it off course? Maybe a simple bomb? One idea I've heard, but I don't know if it's viable, is that part of the asteroid could be painted white and part black in order to induce an altered spin due to solar radiation, which could deflect the orbit as well. The key to preventing an impact is early detection. I think starship is no more or less than what he says it is. A serious attempt to make humans multi-planetary so an impact doesn't end the human race altogether. |
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Posted: 5/11/2021 12:15:57 AM EDT
[#41]
Quote HistoryOriginally Posted By 1Andy2: The key to preventing an impact is early detection. I think starship is no more or less than what he says it is. A serious attempt to make humans multi-planetary so an impact doesn't end the human race altogether. Quote HistoryOriginally Posted By 1Andy2: Originally Posted By TacticalGarand44: The Dutch professor just brought up something in another rocket thread that gave me a thought. Elon has mentioned in a few interviews that he is concerned about extinction level events, and constantly reiterates that our race has to become multiplanetary in order to maximize our chances of survival. I wonder if in the back of his mind, he's already designing a Starship vehicle specifically designed in advance to be held in reserve for long range asteroid interdiction. Maybe a pack of rocket boosters mounted orthogonal to the path in order to knock it off course? Maybe a simple bomb? One idea I've heard, but I don't know if it's viable, is that part of the asteroid could be painted white and part black in order to induce an altered spin due to solar radiation, which could deflect the orbit as well. The key to preventing an impact is early detection. I think starship is no more or less than what he says it is. A serious attempt to make humans multi-planetary so an impact doesn't end the human race altogether. That's why I think NASA should put its efforts toward space telemetry, and let the commercial market handle orbital launching. Elon said that Starship will be able to put a telescope with three times the diameter lens of Hubble into orbit. Now I don't remember everything from Optics class, but bigger is most certainly better. Or by comparison, a much larger telescope doesn't need as fine a lens for equal results. I bet you could design a telescope to scan deep orbit for a tenth the price of Hubble's initial cost, and with the cost of launch reduced to a fraction we could put up a whole network. And once Starship is viable, and we do detect something headed our way? It will almost certainly be the best option available to intercept. |
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Posted: 5/11/2021 12:19:05 AM EDT
[#42]
Quote HistoryOriginally Posted By Chokey: Man wanted for trespassing on SpaceX property https://pbs.twimg.com/media/E1Evs1EWYAEkZK8?format=jpg&name=large I figured this was going to happen sooner or later, and will happen again. The perimeter isn't very secure at all. |
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Posted: 5/11/2021 12:21:03 AM EDT
[#43]
Quote HistoryOriginally Posted By hondaciv: I figured this was going to happen sooner or later, and will happen again. The perimeter isn't very secure at all. Quote HistoryOriginally Posted By hondaciv: Originally Posted By Chokey: Man wanted for trespassing on SpaceX property https://pbs.twimg.com/media/E1Evs1EWYAEkZK8?format=jpg&name=large I figured this was going to happen sooner or later, and will happen again. The perimeter isn't very secure at all. Arfbros should put together a volunteer security service. I bet we could put dozens of the 69th Chairborne on that property every night, well armed and ready to rumble. |
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Posted: 5/11/2021 12:24:59 AM EDT
[#44]
Quote HistoryOriginally Posted By TacticalGarand44: Arfbros should put together a volunteer security service. I bet we could put dozens of the 69th Chairborne on that property every night, well armed and ready to rumble. Quote HistoryOriginally Posted By TacticalGarand44: Originally Posted By hondaciv: Originally Posted By Chokey: Man wanted for trespassing on SpaceX property https://pbs.twimg.com/media/E1Evs1EWYAEkZK8?format=jpg&name=large I figured this was going to happen sooner or later, and will happen again. The perimeter isn't very secure at all. Arfbros should put together a volunteer security service. I bet we could put dozens of the 69th Chairborne on that property every night, well armed and ready to rumble. MilitiaX? |
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Posted: 5/11/2021 12:27:03 AM EDT
[#45]
Quote HistoryOriginally Posted By hondaciv: MilitiaX? Quote HistoryOriginally Posted By hondaciv: Originally Posted By TacticalGarand44: Originally Posted By hondaciv: Originally Posted By Chokey: Man wanted for trespassing on SpaceX property https://pbs.twimg.com/media/E1Evs1EWYAEkZK8?format=jpg&name=large I figured this was going to happen sooner or later, and will happen again. The perimeter isn't very secure at all. Arfbros should put together a volunteer security service. I bet we could put dozens of the 69th Chairborne on that property every night, well armed and ready to rumble. MilitiaX? To the fuckin Moon. |
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Posted: 5/11/2021 12:30:52 AM EDT
[#46]
Quote HistoryOriginally Posted By hondaciv: MilitiaX? I think more than one guy on this site has said. "Would be (paid) henchman for Musk."
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Posted: 5/11/2021 1:14:50 AM EDT
[#47]
Quote HistoryOriginally Posted By Hesperus: I think more than one guy on this site has said. "Would be (paid) henchman for Musk." Fuck yeah. Homer simpson was an idiot to leave GlobeX. Hank Scorpio was a great guy. |
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Posted: 5/11/2021 4:04:18 AM EDT
[#48]
Quote HistoryOriginally Posted By Hesperus: I think more than one guy on this site has said. "Would be (paid) henchman for Musk." Quote HistoryOriginally Posted By Hesperus: Originally Posted By hondaciv: MilitiaX? I think more than one guy on this site has said. "Would be (paid) henchman for Musk." |
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Posted: 5/11/2021 5:56:38 AM EDT
[#49]
Quote HistoryOriginally Posted By AR4U: What are the uniforms like? Mao jackets? Metalisized?  Attached File |
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Posted: 5/11/2021 8:45:21 AM EDT
[#50]
Quote HistoryOriginally Posted By hondaciv: MilitiaX? Quote HistoryOriginally Posted By hondaciv: Originally Posted By TacticalGarand44: Originally Posted By hondaciv: Originally Posted By Chokey: Man wanted for trespassing on SpaceX property https://pbs.twimg.com/media/E1Evs1EWYAEkZK8?format=jpg&name=large I figured this was going to happen sooner or later, and will happen again. The perimeter isn't very secure at all. Arfbros should put together a volunteer security service. I bet we could put dozens of the 69th Chairborne on that property every night, well armed and ready to rumble. MilitiaX? 
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