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      "body": "Congratulations @whatif! You received a personal award!\n\n<table><tr><td>https://steemitimages.com/70x70/http://steemitboard.com/@whatif/birthday2.png</td><td>Happy Birthday! - You are on the Steem blockchain for 2 years!</td></tr></table>\n\n<sub>_You can view [your badges on your Steem Board](https://steemitboard.com/@whatif) and compare to others on the [Steem Ranking](https://steemitboard.com/ranking/index.php?name=whatif)_</sub>\n\n\n###### [Vote for @Steemitboard as a witness](https://v2.steemconnect.com/sign/account-witness-vote?witness=steemitboard&approve=1) to get one more award and increased upvotes!",
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      "body": "I think it really depends on your goals.  You might want to keep it at the points if you want to use them in space expeditions, or keep them there in \"long term storage\". If you don't need to use them right away and want to use them to load up a ship to launch somewhere in the solar system, you would likely launch from there anyway so one less stop. If you want to send it down to Earth, the closer the better.",
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      "body": "I was having a conversation with someone about what to do with captured resources if space mining becomes a reality.... Do you think it'd be more practical to try and bring space resources to cislunar space and process them immediately, or \"park\" them in L4/ L5 and try to build a processing base/ space station there?",
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      "title": "{What if} party drugs are the key to long-term space flight?",
      "body": "Party drugs and on-duty astronauts seem like the most irresponsible combination a person could think up.  After all, it costs over 1,000 USD to send about 2 lbs (1Kg) of material into orbit- a fact that puts immense pressure on Astronauts to be constantly at their best.  Add to that how easily poor judgement can jeopardize entire spacecraft,  and it seems like recreational substances should be kept out of space entirely.\n\nThat sort of thinking (while totally well-founded) has prevented researchers from looking to unlikely allies in the fight against space-related cognitive decline.   A number of researchers have taken to the problem with an engineer's prospective, trying to develop better radiation shielding and other tech that may not be perfected before mankind launches its first long-term manned missions.   Developing better tech, while ideal, might not be the only available answer.\n\nHaving a chronic addiction to papers that aren't protected by a paywall, I read the abstracts and findings of hundreds of useless studies. In 2014, when I read \"Long-term effects of marijuana use on the brain,\" I immediately suspected that what I read had immediate, valuable applications. ScienceAlert and other softcore science news outlets misreported the findings, suggesting that the brains of habitual users respond to a loss of grey matter in one region of the brain (the orbitofrontal cortex) by improving structural integrity elsewhere. In reality, the methodology of the study made it impossible to determine whether a \"loss of grey matter\" in the OFC was happening in response to habitual drug use. The authors of the paper noted that a smaller than average OFC in 12 year olds is predictive of later marijuana use- meaning that many of the subjects of the study could have had a smaller OFC to begin with. \n\nWhat the study *did* illustrate is that neural connectivity (the number of connections between single neurons) increases steadily for the first 6-8 years of habitual use.  Aside from situations where sudden and significant brain trauma triggers the brain to \"rewire\" itself, it was generally believed that once cells in the brain are damaged, that damage could not be repaired.  This study was one of the first, but not the only one, to demonstrate that the brain can be tricked into performing this kind of repair in other ways.\n \nJust a year prior to that, an experiment on mice conducted by the University of South Florida revealed similarly significant results.  Working off a 2011 study that showed glucocorticoid receptors stimulate new growth in the hippocampus, researchers decided to test Psilocybin (which acts on a range of receptors) on a group of mice. Researchers hypothesized that giving mice a dose of the halucinogen would cause them to learn to fear painful stimuli more quickly, and exhibit those fears for longer than their sober fellows.  When the lowest dosed mice overcame their conditioned fear response before the other groups, researchers were suprised to find that they had experienced significant new cell growth. \n\nThe point?  Drugs that have been illegal to test on humans for the last half century or so are likely harboring helpful secrets in the battle against \"space brain.\"  Space damages the brains of astronauts in ways that we don't fully understand yet.  Zero gravity changes the way blood is circulated in the body, and causes decreased function in multiple areas of the brain.  Occasionally, energized particles impact and damage healthy cells at random, including neurons. Psychological strain adds yet another element of complexity to these problems, and that's in the relative safety of Earth orbit.\n\nWhen mankind ventures beyond the safety of the Earth's magnetosphere, astronauts will be exposed to relatively high levels of cosmic radiation for long periods of time.  In a study on mice and rats, both types of rodents were exposed to a range of radiated particles in levels similar to what an astronaut would experience.  The effects on the animals were strikingly similar, and suggested that astronauts on these missions may develop:\n* Brain inflammation\n* Decreased neural connectivity\n* Decreased ability to learn\n* Diminished capacity for fear-extinction\n* Poor memory\n* Progressive cognitive defecits\n* And long term anxiety disorders\nWhile development of drugs to reduce the impact of radiation on astronauts is underway, the focus is on making astronauts more resilient to radiation, rather than treating the long term side-effects of that exposure.\n\nIn the meantime,  if there is a way to treat, or even to prevent, the neurological damage associated with long-term spaceflight, it would be irresponsible to overlook it.  There's no reason to let our social stigma against \"drugs\" keep researchers from looking into what might be an immediate, achievable preventative measure.  Members of a space crew need the highest degree of mental acuity possible at all times - erring on the side of an ingrained bias for \"sobriety\" may be too great a risk to take.  \n\n[Proceedings of the National Academy of Sciences](http://www.pnas.org/content/111/47/16913.full) \"Long-term effects of marijuana use on the brain\" full paper\n[Article](http://www.brainhealth.utdallas.edu/blog_page/study-shows-marijuanas-long-term-effects-on-the-brain) for the casual reader.\n\n[Effects of psilocybin on hippocampal neurogenesis and extinction of trace fear conditioning](https://www.ncbi.nlm.nih.gov/pubmed/23727882)  Full academic paper\n[Livescience](https://www.livescience.com/37914-psilocybin-eliminates-traumatic-memories.html) summary for casual readers\n \nA bit about [Adult Neurogenesis](http://www.brainfacts.org/brain-basics/brain-development/articles/2016/neurogenesis-an-overview-072116/)\n\n[Cosmic Radiation exposure and persistant cognitive dysfunction](https://www.nature.com/articles/srep34774)  Full academic paper on irradiated mice via Nature\n[LA Times](http://www.latimes.com/science/sciencenow/la-sci-sn-space-brain-20161011-snap-story.html) article on \"Space-brain\" for casual readers",
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      "title": "Could Jello be the perfect material to shield space craft?",
      "body": "The list of tech that we are trying to develop for long-term manned missions in space is *long*. Rightly so-  ask an expert, and they'll probably agree that everything in space is trying to kill you.  We need tech to survive even a few moments in space, and unless we improve some fundamental aspects of Aerospace engineering, spacecraft and equipment will continue to have a relatively short shelf life.\n   One particularly annoying problem that engineers are trying to solve is a two- part problem:\n* We have a buttload of space- junk and microscopic debris in orbit,\n* We haven't really perfected shielding technology for our spacecraft.\n\nAmong science-fiction enthusiasts, the proposed solution is to develop a repulsing field around a craft to redirect space debris and keep spacecraft intact.  With the exception of a few ultra-brainy scientists searching for mono-poles and studying the weirder aspects of electromagnetism, it's safe to say we just aren't there yet. So, NASA and the ESA are actively looking to reduce the amount of space junk endangering LEO and Geosynchronous craft.\n\n### What if there was a way to neutralize space-junk while testing a shield?\n\nI spent several weeks combing over creative ideas to tackle to the space-junk problem.  All of the seemingly obvious solutions had the same problem:  objects in space don't move the same way as on earth.   Seems like an obvious statement, until you realize that all the \"solutions\" you've come up with are based on a bias toward the way you've observed Newtonian physics at work. In space, transfer of energy in a collision (change of trajectory) is very different than on earth where atmospheric friction and gravity constantly slow and stop moving objects.  \n  For example, a sort of dragnet to collect debris could easily send objects bouncing out of the net and whizzing around.... creating a giant hazard for nearby craft and space agencies that have to track those moving objects.  There's also the real possibility that the force of high speed objects impacting the net would either destroy the net, or destroy the equipment mounting that net to a satellite or other craft.\n  Trying to use magnetism to retrieve larger individual objects or \"catch\" smaller debris as it passes seemed like another possible solution.  After thinking about it, I realized that it was an obvious solution with limited usefulness. Not all space debris is ferrous.  The space debris that is tends to be fairly large, which means that it's easiest to track and maneuver around.  Smaller debris (which is the most dangerous) has such a high relative velocity that \"catching\" it as it passes would mean performing complicated maneuvers that would quickly deplete fuel and endanger the clean-up craft.  Even \"slow-moving\" debris in space is generally whizzing around at the same speed as bullets- part of the reason that Agencies full of the best and brightest are still struggling to come up with good solution for orbital clean-up.\n\n### How Jello could solve the problem\nA while after giving up on the space junk problem, I made a batch of Jello.  I dropped my phone and it bounced right out of the bowl onto the floor, spitting out its battery and seriously pissing me off.  After glaring at my phone for a minute, I thought back to the space- junk problem. I immediately started bouncing objects off the jello like a crazy person:  quarters, marbles.... really all the small objects close enough to grab.   Eventually I made a sort of slingshot to launch  objects at a higher speed, thinking about the shape and velocity of random space junk.\n\nNow, obviously Jello is not the ideal material to spend into space.  I'm not *that* crazy. However, Jello has a number of physical properties ideal for a shielding material in space:\n* It distributes kinetic energy throughout its mass.\n* Rounded and irregular objects require a substantial amount of force to penetrate it.\n* Jello quickly slows objects that penetrate it\n* Projectiles become embedded in the jello\n\nNow at first blush, this seems like too simple a solution to a complicated problem- until you look at the materials we designed to stop bullets here on earth.   Ballistics gel, Kevlar, and Graphene body armor are all products designed to stop bullets.  A combination of similar materials could be layered together to form a smart material capable of trapping space debris on impact.\n\nThe external skin would have to be composed of long chain polymers that are elastic in nature, but not resistant to puncture.  This layer would serve as a pocket to deposit the gel material in,  and to keep fragments of the gelatinous interior from flying off into space when an object impacts the shield.  It would have to be resistant to heat, extreme cold, and not degrade in UV or become brittle in the cold.\n\nThe next layer would be a relatively thick layer of smart gel with several long chain polymers dispersed thinly throughout to increase its structural integrity. Increasingly dense layers of smart gel would be deposited between the external gel and a thick,  Kevlar-like polymer skin.  A final, thickly layered, folding Graphene shield would form the last layer of protection between the clean-up drone and the micro-debris it would be flying into.\n\nThe entire shield would have to be a self contained unit that cloud be deployed in space, and assembled and mounted by an on-board robot arm.   The trick there would be to produce the folding Graphene shield, enveloped in the proper polymer skins.  The smart gels would have to be deposited between layers of polymers using an aerosolized delivery method or by remotely releasing a catalyst to a precursor material included between the polymer skins.  \n\nObviously I don't work for NASA, but I think it's an idea worth testing.  Anyone know where a tinkerbug can find a material-sciences lab?",
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      "body": "Thank you! I have a lot to share (right now is the 5 year anniversary of me going to NASA with the International Space University, so I am getting new \"Memories\" shared on Facebook every day). So a lot of material to share with all of you :)\n\nI hope to also do some segments of how to get started studying or working with Space. I hope that can be of value to you should it be something you would want to do one day :)\n\nThank you again for giving a kind welcome! I look forward to engaging with you more in the future!",
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      "title": "{What if} party drugs are the key to long-term space flight?",
      "body": "Party drugs and on-duty astronauts seem like the most irresponsible combination a person could think up.  After all, it costs over 1,000 USD to send about 2 lbs (1Kg) of material into orbit- a fact that puts immense pressure on Astronauts to be constantly at their best.  Add to that how easily poor judgement can jeopardize entire spacecraft,  and it seems like recreational substances should be kept out of space entirely.\n\nThat sort of thinking (while totally well-founded) has prevented researchers from looking to unlikely allies in the fight against space-related cognitive decline.   A number of researchers have taken to the problem with an engineer's prospective, trying to develop better radiation shielding and other tech that may not be perfected before mankind launches its first long-term manned missions.   Developing better tech, while ideal, might not be the only available answer.\n\nHaving a chronic addiction to papers that aren't protected by a paywall, I read the abstracts and findings of hundreds of useless studies. In 2014, when I read \"Long-term effects of marijuana use on the brain,\" I immediately suspected that what I read had immediate, valuable applications. ScienceAlert and other softcore science news outlets misreported the findings, suggesting that the brains of habitual users respond to a loss of grey matter in one region of the brain (the orbitofrontal cortex) by improving structural integrity elsewhere. In reality, the methodology of the study made it impossible to determine whether a \"loss of grey matter\" in the OFC was happening in response to habitual drug use. The authors of the paper noted that a smaller than average OFC in 12 year olds is predictive of later marijuana use- meaning that many of the subjects of the study could have had a smaller OFC to begin with. \n\nWhat the study *did* illustrate is that neural connectivity (the number of connections between single neurons) increases steadily for the first 6-8 years of habitual use.  Aside from situations where sudden and significant brain trauma triggers the brain to \"rewire\" itself, it was generally believed that once cells in the brain are damaged, that damage could not be repaired.  This study was one of the first, but not the only one, to demonstrate that the brain can be tricked into performing this kind of repair in other ways.\n \nJust a year prior to that, an experiment on mice conducted by the University of South Florida revealed similarly significant results.  Working off a 2011 study that showed glucocorticoid receptors stimulate new growth in the hippocampus, researchers decided to test Psilocybin (which acts on a range of receptors) on a group of mice. Researchers hypothesized that giving mice a dose of the halucinogen would cause them to learn to fear painful stimuli more quickly, and exhibit those fears for longer than their sober fellows.  When the lowest dosed mice overcame their conditioned fear response before the other groups, researchers were suprised to find that they had experienced significant new cell growth. \n\nThe point?  Drugs that have been illegal to test on humans for the last half century or so are likely harboring helpful secrets in the battle against \"space brain.\"  Space damages the brains of astronauts in ways that we don't fully understand yet.  Zero gravity changes the way blood is circulated in the body, and causes decreased function in multiple areas of the brain.  Occasionally, energized particles impact and damage healthy cells at random, including neurons. Psychological strain adds yet another element of complexity to these problems, and that's in the relative safety of Earth orbit.\n\nWhen mankind ventures beyond the safety of the Earth's magnetosphere, astronauts will be exposed to relatively high levels of cosmic radiation for long periods of time.  In a study on mice and rats, both types of rodents were exposed to a range of radiated particles in levels similar to what an astronaut would experience.  The effects on the animals were strikingly similar, and suggested that astronauts on these missions may develop:\n* Brain inflammation\n* Decreased neural connectivity\n* Decreased ability to learn\n* Diminished capacity for fear-extinction\n* Poor memory\n* Progressive cognitive defecits\n* And long term anxiety disorders\nWhile development of drugs to reduce the impact of radiation on astronauts is underway, the focus is on making astronauts more resilient to radiation, rather than treating the long term side-effects of that exposure.\n\nIn the meantime,  if there is a way to treat, or even to prevent, the neurological damage associated with long-term spaceflight, it would be irresponsible to overlook it.  There's no reason to let our social stigma against \"drugs\" keep researchers from looking into what might be an immediate, achievable preventative measure.  Members of a space crew need the highest degree of mental acuity possible at all times - erring on the side of an ingrained bias for \"sobriety\" may be too great a risk to take.  \n\n[Proceedings of the National Academy of Sciences](http://www.pnas.org/content/111/47/16913.full) \"Long-term effects of marijuana use on the brain\" full paper\n[Article](http://www.brainhealth.utdallas.edu/blog_page/study-shows-marijuanas-long-term-effects-on-the-brain) for the casual reader.\n\n[Effects of psilocybin on hippocampal neurogenesis and extinction of trace fear conditioning](https://www.ncbi.nlm.nih.gov/pubmed/23727882)  Full academic paper\n[Livescience](https://www.livescience.com/37914-psilocybin-eliminates-traumatic-memories.html) summary for casual readers\n \nA bit about [Adult Neurogenesis](http://www.brainfacts.org/brain-basics/brain-development/articles/2016/neurogenesis-an-overview-072116/)\n\n[Cosmic Radiation exposure and persistant cognitive dysfunction](https://www.nature.com/articles/srep34774)  Full academic paper on irradiated mice via Nature\n[LA Times](http://www.latimes.com/science/sciencenow/la-sci-sn-space-brain-20161011-snap-story.html) article on \"Space-brain\" for casual readers",
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      "body": "Welcome to Steem and thank you for sharing your experience with those of us who can't go to the International Space University!  I'll definitely be following :)",
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      "title": "{What if} party drugs are the key to long-term space flight?",
      "body": "Party drugs and on-duty astronauts seem like the most irresponsible combination a person could think up.  After all, it costs over 1,000 USD to send about 2 lbs (1Kg) of material into orbit- a fact that puts immense pressure on Astronauts to be constantly at their best.  Add to that how easily poor judgement can jeopardize entire spacecraft,  and it seems like recreational substances should be kept out of space entirely.\n\n     That sort of thinking (while totally well-founded) has prevented researchers from looking to unlikely allies in the fight against space-related cognitive decline.   A number of researchers have taken to the problem with an engineer's prospective, trying to develop better radiation shielding and other tech that may not be perfected before mankind launches its first long-term manned missions.   Developing better tech, while ideal, might not be the only available answer.\n\n     Having a chronic addiction to papers that aren't protected by a paywall, I read the abstracts and findings of hundreds of useless studies. In 2014, when I read \"Long-term effects of marijuana use on the brain,\" I immediately suspected that what I read had immediate, valuable applications. ScienceAlert and other softcore science news outlets misreported the findings, suggesting that the brains of habitual users respond to a loss of grey matter in one region of the brain (the orbitofrontal cortex) by improving structural integrity elsewhere. In reality, the methodology of the study made it impossible to determine whether a \"loss of grey matter\" in the OFC was happening in response to habitual drug use. The authors of the paper noted that a smaller than average OFC in 12 year olds is predictive of later marijuana use- meaning that many of the subjects of the study could have had a smaller OFC to begin with. \n\n     What the study *did* illustrate is that neural connectivity (the number of connections between single neurons) increases steadily for the first 6-8 years of habitual use.  Aside from situations where sudden and significant brain trauma triggers the brain to \"rewire\" itself, it was generally believed that once cells in the brain are damaged, that damage could not be repaired.  This study was one of the first, but not the only one, to demonstrate that the brain can be tricked into performing this kind of repair in other ways.\n \n    Just a year prior to that, an experiment on mice conducted by the University of South Florida revealed similarly significant results.  Working off a 2011 study that showed glucocorticoid receptors stimulate new growth in the hippocampus, researchers decided to test Psilocybin (which acts on a range of receptors) on a group of mice. Researchers hypothesized that giving mice a dose of the halucinogen would cause them to learn to fear painful stimuli more quickly, and exhibit those fears for longer than their sober fellows.  When the lowest dosed mice overcame their conditioned fear response before the other groups, researchers were suprised to find that they had experienced significant new cell growth. \n\n    The point?  Drugs that have been illegal to test on humans for the last half century or so are likely harboring helpful secrets in the battle against \"space brain.\"  Space damages the brains of astronauts in ways that we don't fully understand yet.  Zero gravity changes the way blood is circulated in the body, and causes decreased function in multiple areas of the brain.  Occasionally, energized particles impact and damage healthy cells at random, including neurons. Psychological strain adds yet another element of complexity to these problems, and that's in the relative safety of Earth orbit.\n\n    When mankind ventures beyond the safety of the Earth's magnetosphere, astronauts will be exposed to relatively high levels of cosmic radiation for long periods of time.  In a study on mice and rats, both types of rodents were exposed to a range of radiated particles in levels similar to what an astronaut would experience.  The effects on the animals were strikingly similar, and suggested that astronauts on these missions may develop:\n* Brain inflammation\n* Decreased neural connectivity\n* Decreased ability to learn\n* Diminished capacity for fear-extinction\n* Poor memory\n* Progressive cognitive defecits\n* And long term anxiety disorders\nWhile development of drugs to reduce the impact of radiation on astronauts is underway, the focus is on making astronauts more resilient to radiation, rather than treating the long term side-effects of that exposure.\n\n    In the meantime,  if there is a way to treat, or even to prevent, the neurological damage associated with long-term spaceflight, it would be irresponsible to overlook it.  There's no reason to let our social stigma against \"drugs\" keep researchers from looking into what might be an immediate, achievable preventative measure.  Members of a space crew need the highest degree of mental acuity possible at all times - erring on the side of an ingrained bias for \"sobriety\" may be too great a risk to take.  \n\n[Proceedings of the National Academy of Sciences](http://www.pnas.org/content/111/47/16913.full) \"Long-term effects of marijuana use on the brain\" full paper\n[Article](http://www.brainhealth.utdallas.edu/blog_page/study-shows-marijuanas-long-term-effects-on-the-brain) for the casual reader.\n\n[Effects of psilocybin on hippocampal neurogenesis and extinction of trace fear conditioning](https://www.ncbi.nlm.nih.gov/pubmed/23727882)  Full academic paper\n[Livescience](https://www.livescience.com/37914-psilocybin-eliminates-traumatic-memories.html) summary for casual readers\n \nA bit about [Adult Neurogenesis](http://www.brainfacts.org/brain-basics/brain-development/articles/2016/neurogenesis-an-overview-072116/)\n\n[Cosmic Radiation exposure and persistant cognitive dysfunction](https://www.nature.com/articles/srep34774)  Full academic paper on irradiated mice via Nature\n[LA Times](http://www.latimes.com/science/sciencenow/la-sci-sn-space-brain-20161011-snap-story.html) article on \"Space-brain\" for casual readers",
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