AngryFrozenWater
N5
Sir Nose D'VoidOfFunk
Games: Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Jade Empire, Mass Effect Andromeda
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Post by AngryFrozenWater on Feb 4, 2022 23:29:22 GMT
Gravity is solved by splitting a ship into two, connected by a cable, and spinning them around each other. We are on the verge of magnet technology that will let us create a protective magnet field around a planet, like Mars. I'm not sure that it'll protect as well, when scaled down to protect a ship. The volume of the magnet field may be too small. I don't know. The rest, we need a safe space protected by a lead shield, just like skekSil says. Certainly also doable. About that magnetic field around Mars. Sabine addresses a paper, which proposes that. She makes very good counter arguments. Terraforming Mars in Just 3 Simple Steps! - Sabine Hossenfelder.
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Post by B. Hieronymus Da on Feb 4, 2022 23:56:42 GMT
Gravity is solved by splitting a ship into two, connected by a cable, and spinning them around each other. We are on the verge of magnet technology that will let us create a protective magnet field around a planet, like Mars. I'm not sure that it'll protect as well, when scaled down to protect a ship. The volume of the magnet field may be too small. I don't know. The rest, we need a safe space protected by a lead shield, just like skekSil says. Certainly also doable. About that magnetic field around Mars. Sabine addresses a paper, which proposes that. She makes very good counter arguments. Terraforming Mars in Just 3 Simple Steps! - Sabine Hossenfelder. No, I don't agree. She doesn't make any good counter argument. She's merely pointing out what it takes to terraform Mars. Certainly easier to not first de-terraform Earth, which is why that should receive slightly more focus. And that's her only point. But it's absolutely necessary to give Mars magnetic field if we're going to have any larger colonies there. Atmosphere or not. And I think her take on how to make the magnet field might already be aged. I was under the impression it might only take a 'tape'. Regardless if or if not, it's what must be done for largescale and permanent colonization, and it's doable, just a very, very big project.
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Sir Nose D'VoidOfFunk
Games: Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Jade Empire, Mass Effect Andromeda
Posts: 3,025 Likes: 8,733
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Post by AngryFrozenWater on Feb 5, 2022 1:02:56 GMT
About that magnetic field around Mars. Sabine addresses a paper, which proposes that. She makes very good counter arguments. Terraforming Mars in Just 3 Simple Steps! - Sabine Hossenfelder. No, I don't agree. She doesn't make any good counter argument. She's merely pointing out what it takes to terraform Mars. Certainly easier to not first de-terraform Earth, which is why that should receive slightly more focus. And that's her only point. But it's absolutely necessary to give Mars magnetic field if we're going to have any larger colonies there. Atmosphere or not. And I think her take on how to make the magnet field might already be aged. I was under the impression it might only take a 'tape'. Regardless if or if not, it's what must be done for largescale and permanent colonization, and it's doable, just a very, very big project. I am interested in that "tape". Do you have a source for that, please?
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Sir Nose D'VoidOfFunk
Games: Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Jade Empire, Mass Effect Andromeda
Posts: 3,025 Likes: 8,733
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Post by AngryFrozenWater on Feb 11, 2022 19:57:13 GMT
The first image from the James Webb Space Telescope! (and why it looks a bit naff) - Becky Smethurst.
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Post by nanotm on Feb 12, 2022 16:02:38 GMT
Gravity is solved by splitting a ship into two, connected by a cable, and spinning them around each other. We are on the verge of magnet technology that will let us create a protective magnet field around a planet, like Mars. I'm not sure that it'll protect as well, when scaled down to protect a ship. The volume of the magnet field may be too small. I don't know. The rest, we need a safe space protected by a lead shield, just like skekSil says. Certainly also doable. um all you do is up the power through the transformers and the coils and you increase the power of the magnetic fields.... its actually easier to use slip deflection rather than skip/reflection type shields especially as you can utilise polarity shift (or rotating fields if you have enough formers around the hull) meaning you can effectively "shield" and utilise whatever particulates or solid matter as speed boosters... meaning your engines can be much smaller and yet still achieve massive propulsion over time effects also since gravity is effectively a combination of mass and velocity the bigger problem would be minimising its effects on the vessel and crew/cargo what wiht the level of forces in play as you approach speeds in excess of 1%C... you know meat sacks tend to end up as a gore splash long before the frame of the vessel would start to disintegrate otherwise...
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Post by skekSil on Feb 12, 2022 22:32:21 GMT
gravity is effectively a combination of mass and velocity What is that supposed to mean?
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Post by skekSil on Feb 16, 2022 23:18:40 GMT
Apollo LunarJournal if you are interested in a detailed account of what happened during lunar missions.
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Post by AnDromedary on Feb 17, 2022 8:08:51 GMT
This is a heck of a story: spectrum.ieee.org/bionic-eye-obsoleteA little too close to Deus Ex: Human Revolution if you ask me. But all black humor aside, it certainly shows the moral grey zones in frontier medical research that are very hard to navigate.
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AngryFrozenWater
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Sir Nose D'VoidOfFunk
Games: Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Jade Empire, Mass Effect Andromeda
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Post by AngryFrozenWater on Feb 23, 2022 15:53:29 GMT
Twos-Day Tuesday! 22 YouTubers celebrate all things "two" and nothing goes wrong. - Mat Parker. Twos Day Tuesday #shorts - Steve Mould's second channel. TWOS-DAY 22-2-22 - The Saga Continues - Numberphile 2. I should have posted it yesterday, but it is still nerdly funny. Edit: I had to edit this post twice.
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Post by B. Hieronymus Da on Feb 26, 2022 23:43:41 GMT
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Post by q5tyhj on Mar 7, 2022 17:41:15 GMT
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Post by q5tyhj on Mar 7, 2022 19:14:14 GMT
Regardless if or if not, it's what must be done for largescale and permanent colonization, and it's doable, just a very, very big project. Not doable in any meaningful sense. Talking about creating an atmosphere on Mars is about as doable as talking about Dyson spheres or warp drives or pulsar arrays- we're talking far, far future speculative technology. And it looks like Sabine didn't even talk about the gravity problem, which is every bit as serious as the lack of atmosphere; human bodies can't withstand low gravity situations for very long without falling apart, so any long-term terraforming project would also have to include rotational or some other sort of artificial gravity in order to be viable (on top of all the other issues). Honestly, it may be more doable to find habitable/Earth-like planets in nearby star systems than it is to terraform Mars; either way, we're talking about things that are not feasible, even projecting technological development into the foreseeable future.
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Post by B. Hieronymus Da on Mar 7, 2022 23:50:45 GMT
Regardless if or if not, it's what must be done for largescale and permanent colonization, and it's doable, just a very, very big project. Not doable in any meaningful sense. Talking about creating an atmosphere on Mars is about as doable as talking about Dyson spheres or warp drives or pulsar arrays- we're talking far, far future speculative technology. And it looks like Sabine didn't even talk about the gravity problem, which is every bit as serious as the lack of atmosphere; human bodies can't withstand low gravity situations for very long without falling apart, so any long-term terraforming project would also have to include rotational or some other sort of artificial gravity in order to be viable (on top of all the other issues). Honestly, it may be more doable to find habitable/Earth-like planets in nearby star systems than it is to terraform Mars; either way, we're talking about things that are not feasible, even projecting technological development into the foreseeable future. It's much more doable than Dyson spheres and warp drives. Not close at all But sure, it's "far, far future...". I certainly don't think even our grandchildren will be around to see this take off. But I actually don't think the technology itself is going to be as big issue as the timespan and scale of resources. It'll need nuclear power (and fusion, I should think) and machines with a polished degree of autonomous AI. A problem I see is where to get all the nitrogen? But atmosphere is not necessary for colonies on Mars, just for a largescale and permanent self sustaining colonization. And if there is a colony, and it's providing its own resources, things will gradually roll on. Regarding the low gravity situation: You don't think a constant gravity of 0.38g could be enough? I suspect we really don't know how much gravity we need.
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AngryFrozenWater
N5
Sir Nose D'VoidOfFunk
Games: Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Jade Empire, Mass Effect Andromeda
Posts: 3,025 Likes: 8,733
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Post by AngryFrozenWater on Mar 8, 2022 15:27:07 GMT
Not doable in any meaningful sense. Talking about creating an atmosphere on Mars is about as doable as talking about Dyson spheres or warp drives or pulsar arrays- we're talking far, far future speculative technology. And it looks like Sabine didn't even talk about the gravity problem, which is every bit as serious as the lack of atmosphere; human bodies can't withstand low gravity situations for very long without falling apart, so any long-term terraforming project would also have to include rotational or some other sort of artificial gravity in order to be viable (on top of all the other issues). Honestly, it may be more doable to find habitable/Earth-like planets in nearby star systems than it is to terraform Mars; either way, we're talking about things that are not feasible, even projecting technological development into the foreseeable future. It's much more doable than Dyson spheres and warp drives. Not close at all But sure, it's "far, far future...". I certainly don't think even our grandchildren will be around to see this take off. But I actually don't think the technology itself is going to be as big issue as the timespan and scale of resources. It'll need nuclear power (and fusion, I should think) and machines with a polished degree of autonomous AI. A problem I see is where to get all the nitrogen? But atmosphere is not necessary for colonies on Mars, just for a largescale and permanent self sustaining colonization. And if there is a colony, and it's providing its own resources, things will gradually roll on. Regarding the low gravity situation: You don't think a constant gravity of 0.38g could be enough? I suspect we really don't know how much gravity we need. I am still interested in that "tape", which you mentioned earlier. Do you have a source for that, please?
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Post by B. Hieronymus Da on Mar 8, 2022 21:12:05 GMT
It's much more doable than Dyson spheres and warp drives. Not close at all But sure, it's "far, far future...". I certainly don't think even our grandchildren will be around to see this take off. But I actually don't think the technology itself is going to be as big issue as the timespan and scale of resources. It'll need nuclear power (and fusion, I should think) and machines with a polished degree of autonomous AI. A problem I see is where to get all the nitrogen? But atmosphere is not necessary for colonies on Mars, just for a largescale and permanent self sustaining colonization. And if there is a colony, and it's providing its own resources, things will gradually roll on. Regarding the low gravity situation: You don't think a constant gravity of 0.38g could be enough? I suspect we really don't know how much gravity we need. I am still interested in that "tape", which you mentioned earlier. Do you have a source for that, please? Well, I didn't find my original source, but I found this, which is closely related, and uses the same (or almost) superconductor. news.mit.edu/2021/MIT-CFS-major-advance-toward-fusion-energy-0908news.mit.edu/2021/vinny-fry-wired-success-0915
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Post by q5tyhj on Mar 8, 2022 22:23:30 GMT
Not doable in any meaningful sense. Talking about creating an atmosphere on Mars is about as doable as talking about Dyson spheres or warp drives or pulsar arrays- we're talking far, far future speculative technology. And it looks like Sabine didn't even talk about the gravity problem, which is every bit as serious as the lack of atmosphere; human bodies can't withstand low gravity situations for very long without falling apart, so any long-term terraforming project would also have to include rotational or some other sort of artificial gravity in order to be viable (on top of all the other issues). Honestly, it may be more doable to find habitable/Earth-like planets in nearby star systems than it is to terraform Mars; either way, we're talking about things that are not feasible, even projecting technological development into the foreseeable future. It's much more doable than Dyson spheres and warp drives. Not close at all Only in the sense that it would involve a smaller scale of completely speculative far future technology that we can't even currently envision. But its still in the general category of "completely speculative far future technology that we can't currently even imagine". So, yeah, its like Dyson spheres and warp drives in that sense, the difference is only a matter of degree, not of kind. And we've never tested how humans are effected long-term in Mars gravity specifically (38% of Earth gravity), but we do know that microgravity is extremely dangerous in general and that the human body deteriorates very quickly. There would certainly be serious effects on bone density/structure, circulation, etc at Mars gravity. And that's forgetting the trip out to Mars, on top of Mars own low-g environment. Its awesome to think about, but terraforming Mars is only "doable" in the sense that it doesn't involve any obvious logical impossibilities or breaking of the laws of nature.
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Post by q5tyhj on Mar 8, 2022 22:28:27 GMT
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Post by B. Hieronymus Da on Mar 8, 2022 22:52:44 GMT
And we've never tested how humans are effected long-term in Mars gravity specifically (38% of Earth gravity), but we do know that microgravity is extremely dangerous in general and that the human body deteriorates very quickly. There would certainly be serious effects on bone density/structure, circulation, etc at Mars gravity. And that's forgetting the trip out to Mars, on top of Mars own low-g environment. Its awesome to think about, but terraforming Mars is only "doable" in the sense that it doesn't involve any obvious logical impossibilities or breaking of the laws of nature. Well. The mere thing that there is a constant gravity may very well be a highly facilitating factor. If you load down yourself with heavy protective suits or even intentional weights, you will have the same stresses and loads on bones and muscles as in normal gravity, more even, due to momentum. The only thing that I see would obviously be affected is the differences in pressures in our blood vessels. But it's not like we don't handle that every day when we sit down or lie down, or can't simulate it with a segmented pressure suit. ...And 0.38g is kinda substantial. It's not nothing. Anyway, the answers to those questions will follow when we have personnel on Mars - which I think we will, barring a collapse of civilization -, but personally I'd never recommend anyone to volunteer. Mars is dark and cold, there is no air, no food and no water, and it's a very long way from home.
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Post by q5tyhj on Mar 8, 2022 23:04:19 GMT
And we've never tested how humans are effected long-term in Mars gravity specifically (38% of Earth gravity), but we do know that microgravity is extremely dangerous in general and that the human body deteriorates very quickly. There would certainly be serious effects on bone density/structure, circulation, etc at Mars gravity. And that's forgetting the trip out to Mars, on top of Mars own low-g environment. Its awesome to think about, but terraforming Mars is only "doable" in the sense that it doesn't involve any obvious logical impossibilities or breaking of the laws of nature. Well. The mere thing that there is a constant gravity may very well be a highly facilitating factor. If you load down yourself with heavy protective suits or even intentional weights, you will have the same stresses and loads on bones and muscles as in normal gravity, more even, due to momentum. The only thing that I see would obviously be affected is the differences in pressures in our blood vessels. But it's not like we don't handle that every day when we sit down or lie down. ...And 0.38g is kinda substantial. It's not nothing. Anyway, the answers to those questions will follow when we have personnel on Mars - which I think we will, barring a collapse of civilization -, but personally I'd never recommend anyone to volunteer. Mars is dark and cold, there is no air, no food and no water, and it's a very long way from home. Its not the constancy that's the problem, its the fact that our bodies are structured to function in 1g and not .38 g. If we were talking about a planet with, say, 60 or 70% of Earth gravity then it would probably be a different story. I don't think there's much doubt that Mars gravity would have severe, deleterious effects on human physiology, its only a question of just how bad it would be. Either way, its a major issue and a significant obstacle to any long-term/permanent human colonization. But I'm not doubting that we will land people on Mars, even have some sort of permanent facility with short-term deployments/staff assignments (like on the ISS), its any sort of permanent habitation (let alone terraforming) that is in a similar category to speculative far-future technology like Dyson spheres or warp drives.
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Post by Lavochkin on Mar 9, 2022 1:57:24 GMT
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Post by q5tyhj on Mar 9, 2022 22:08:40 GMT
A few really cool things about this picture: - obviously the galactic core glowing like the Eye of Sauron is probably the first thing that jumps out at you; that glowing central spot includes the Sag A* supermassive black hole, as well as the stars in its nearby vicinity which its massive gravitational pull has whipped into super-fast orbits. Lots of crazy awesome stuff happening in this central region - the poofy thing in the bottom-right corner is a supernova remnant, the expanding gas cloud of a star that exploded spectacularly, which will presumably form a gorgeous planetary nebula and also seed the nearby area with elements that can only form in the cores of massive stars and/or supernovas - iirc the vertical slashes of color are electrons that have been accelerated to relativistic speeds (sort of like with an active galactic nucleus and the relativistic jets from its poles), but whose origin we presently don't know or understand (we would expect to see these in the vicinity of an active galactic nucleus- i.e. a supermassive black hole in a "feeding" phase, but not all over the galaxy as we see in this picture)
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Post by AnDromedary on Mar 9, 2022 22:21:13 GMT
A few really cool things about this picture: - obviously the galactic core glowing like the Eye of Sauron is probably the first thing that jumps out at you; that glowing central spot includes the Sag A* supermassive black hole, as well as the stars in its nearby vicinity which its massive gravitational pull has whipped into super-fast orbits. Lots of crazy awesome stuff happening in this central region - the poofy thing in the bottom-right corner is a supernova remnant, the expanding gas cloud of a star that exploded spectacularly, which will presumably form a gorgeous planetary nebula and also seed the nearby area with elements that can only form in the cores of massive stars and/or supernovas - iirc the vertical slashes of color are electrons that have been accelerated to relativistic speeds (sort of like with an active galactic nucleus and the relativistic jets from its poles), but whose origin we presently don't know or understand (we would expect to see these in the vicinity of an active galactic nucleus- i.e. a supermassive black hole in a "feeding" phase, but not all over the galaxy as we see in this picture) Also, if you zoom very closely into the center of the image and enhance the image quality it actually looks like this:
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Little Pumpkin
Games: Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Mass Effect Andromeda, Anthem, Mass Effect Legendary Edition
Origin: Beerfish
XBL Gamertag: Beerfish77
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Post by Beerfish on Mar 9, 2022 22:25:38 GMT
I know this very very well. When I first started working at a University many years ago I worked on computer databases in the Locksmith shop. I learned all about locks and keys and cylinders and created a lot of Master key systems. (Which is interesting in its own right.) When I see the depth of cuts in keys i see numbers.
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Post by q5tyhj on Mar 9, 2022 22:34:13 GMT
A few really cool things about this picture: - obviously the galactic core glowing like the Eye of Sauron is probably the first thing that jumps out at you; that glowing central spot includes the Sag A* supermassive black hole, as well as the stars in its nearby vicinity which its massive gravitational pull has whipped into super-fast orbits. Lots of crazy awesome stuff happening in this central region - the poofy thing in the bottom-right corner is a supernova remnant, the expanding gas cloud of a star that exploded spectacularly, which will presumably form a gorgeous planetary nebula and also seed the nearby area with elements that can only form in the cores of massive stars and/or supernovas - iirc the vertical slashes of color are electrons that have been accelerated to relativistic speeds (sort of like with an active galactic nucleus and the relativistic jets from its poles), but whose origin we presently don't know or understand (we would expect to see these in the vicinity of an active galactic nucleus- i.e. a supermassive black hole in a "feeding" phase, but not all over the galaxy as we see in this picture) Also, if you zoom very closely into the center of the image and enhance the image quality it actually looks like this: heh exactly... that's like my absolute favorite moment in ME2, btw
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Sir Nose D'VoidOfFunk
Games: Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Jade Empire, Mass Effect Andromeda
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8,733
AngryFrozenWater
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angryfrozenwater
Mass Effect Trilogy, Dragon Age: Origins, Dragon Age 2, Dragon Age Inquisition, KOTOR, Baldur's Gate, Neverwinter Nights, Jade Empire, Mass Effect Andromeda
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Post by AngryFrozenWater on Mar 16, 2022 19:03:26 GMT
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