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What if we unrolled a Stanford Torus?
Total mass: 10 million tons (including radiation shield (95%), habitat, and atmosphere)
Diameter: 1,790 m (1.11 mi)
Habitation tube diameter: 130 m (430 ft)
Spokes: 6 spokes of 15 m (49 ft) diameter
Rotation: 1 revolution per minute
Radiation shield: 1.7 meters (5.6 feet) thick raw lunar soil
This is the relevant part of the Stanford Torus that we can replicate on Mars. Since the Stanford Torus is 1790 meters in diameter, to "unroll" it on the surface of Mars, you would get a linear "greenhouse" that is 5624 meters long, it remains 130 meters wide. I don't know what the six spokes would be used for, they would each be 895 meters high, each one would be taller than the World Trade Center. We can orient the station in the North-South direction along the equator and place mirrors on either side to double the amount of sunlight to Earth normal levels. residents would see two small suns in the sky rise in the east and set in the west.
8. How about the Mars Olympics? What would it take to hold an Olympics competition on Mars, all sorts of records would be set on the planet. What would happen of you brought some Olympic Athletes to Mars, and you engaged them in traditional sports competition? You could set new records for the high jump and the long jump. Imagine if you built a soccer stadium on Mars under a dome. Would you like to watch wrestling in Martian gravity? I think it would be hard to get a pin. What about sprinting, would that be a problem in low gravity. I think swimming might be altered as well, certain strokes such as the butter fly would tend to propel the swimmer completely out of the water.
A superb achievement. I only hope that US and European governments get behind the man and give him the support he deserves.
The big weakness in Musk's plan and indeed all Mars colonisation plans is the absence of any meaningful export that can sustain a Mars colony once it is established. Some 400 years ago when colonists arrived at the new world, they were able to pay for required imports by exporting agricultural products like sugar and tobacco, things that could not easily be produced in Europe at that time. The need is even more pressing on Mars, because we need a lot of technology simply to produce breathable air, potable water, food and all of the stuff that was either freely available or producible using low tech means in the Americas. What does Mars have that can be exported back to Earth in order to fund all of this? Unless we figure that out, a Mars colony will be shabby and poor, rather like the 11th century Viking settlements of Greenland. At least the Vikings had air that they could breath.
This is one of the reasons I think that Mars is not the ideal first choice for space colonisation. The near earth asteroids can provide minerals that can conceivably be exported to pay for things.
Does Mars have gold? Mars has craters, some of the asteroids that have crashed into it undoubtedly have gold. So what's the price of gold in today's market? The price of gold, when I checked was $1,319.47 per troy ounce, there are 12 troy ounces in a pound, which makes gold $15,833.64 per pound. There are 0.45359 kilograms in a pound, that means a kilogram of gold is worth $34,907.38. A ton of gold is worth $34.9 million, that exceeds $50,000 per ton by almost a factor of one thousand. Now it will cost something to mine the gold out of Mars, and first we have to find out where the gold is. How much will it cost to prospect Mars for gold? We have a whole planet here, I'm sure there is some gold here. Hire some geologists from some gold mining companies to find the gold, I'm sure they have some idea on where to look. Mars is next to the asteroid belt, the difference is the asteroids in the belt are spread out, the ones that crashed into Mars are relatively close together and they have craters marking where they crashed.
Tell me, how did the 49ers find gold? they panned for gold nuggets in streams. There are stream beds on Mars, I am sure, if we can find gold nuggets in those stream beds, we just follow those streambeds to their point of origin and find out where that gold came from. Does that sound like a plan or what?
http://arstechnica.com/science/2016/09/ … all-three/
Here is the article I got on Yahoo. I wonder if Trump would go for this. We are about to get a new President in any case. Musk could probably have a billionaire to billionaire chat with Donald Trump about this if he becomes President.
SpaceX is doing stuff no one else has ever done, particularly in the landing of bottom stage rockets! If he can convince the government that he can open up the space frontier, he might get some funding, Maybe the United States could leave the Chinese "eating our dust" if they adopt Musk's program! I don't know what's going to happen with the SLS after this. We'll just have to see. There is a new Cold War on, it could lead to anew Space Race, but the competitor I'd worry about would be China. if we got a good plan to send one million people to Mars in 50 years, I think we should do it, as all NASA has been doing with manned space is tinker around the edges, maybe the right technologies will produce and explosion of migration into space. If we can get one million people to Mars, we can also talk about building those O'Neil space colonies. Phobos would be a great place to do it. Phobos is 27 km by 22 km by 16 km. The Rama colony I talked about on another thread is 16 km by 35 km on the inside.
http://www.bing.com/videos/search?q=Ram … &FORM=VIRE
https://en.wikipedia.org/wiki/Phobos_(moon)
What Phobos doesn't have, Mars could supply. Since Rama is a starship, we might want to send it to one of the gas giants to get some fuel.
I believe there is enough material and the right sort of material to build this. Of course it won't b precisely like Rama, as the video shows, but by the end of this century, we might be able to build a starship like this, and send it on a century's long journey with colonists to Proxima b or any other more favorable planets in the Alpha Centauri system. We need to b able to open up the space frontier, Elon Musk has a plan to do that, maybe this time it will work. One can hope.
What else could it be? Musks rocket engines specifically run on Methane and oxygen, he wants to use the same engines for launch, orbit transfer, landings on Mars, and for taking off again. His whole idea depends heavily on reusability and refueling, he eventually wants to establish refueling depots all over the Solar System. Looks like the spaceships just fly in zero gravity all the way to Mars. If he wants to go to Jupiter or Saturn, he'll need to spin for gravity, as the transit time would otherwise take too long.
Some of the pictures were evocative of Chesley Bonestell.

Some of the ideas Musk has had are very old, and go way back to the 1950s when you think about it. The "throwaway mentality" began in the 1960s.
He relies heavily on reusability f his lower stages. His Mars Colonial Transporter is a 2-stage giant rocket, the bottom stage flies back down and lands on the launch pad, and then blasts off with a tank of fuel to take the crew module to Mars. the tank transfers its contents to the crew module, and then flies back to Cape Canaveral for reuse. The crew module them makes a fuel burn for transmars injection, and deploys solar panels for power during the journey, the panels fold back in, the module enters the Martian atmosphere and lands on the surface, that's the part I get from watching he video. Presumably the crew module makes its return fuel from he atmosphere, blasts off from Mars and returns to Earth for reuse. I wonder if Bob Zubrin has yet commented on Musk's proposal, I'd be interested in what he has to say.
Elon Musk wants to populate Mars with 1 million people to save humanity
Brendan Hesse,Digital Trends 1 hour 15 minutes ago .
Elon Musk presented his vision of SpaceX’s eventual manned missions to Mars at IAC2016. During his presentation, the entrepreneur made a number of announcements regarding SpaceX’s goals for Martian landfall and colonizing Mars. Musk’s main point of discussion dealt primarily with SpaceX’s new massive Interplanetary Transport System, a system which utilizes three separate vehicles to make the trip to Mars and is key to Musk’s plan of making travel to Mars an obtainable reality for almost anyone.
Related: SpaceX still on course for a manned mission to Mars ‘in 10 years, maybe sooner’
The system makes use of a massive booster known as the Raptor, a souped-up version of the Falcon 9 which retains the Falcon 9’s multi-use design and thruster landing. The crew transport ship intends to carry 100 people (though Musk plans for more), and features solar arrays and additional thrusters, as well as massive carbon fiber fuel tanks. A refueling craft loaded with methane fuel would also come in use, thus reducing the initial launch weight of the transport ship.
Detailing the launch procedure, Musk says it plans to involve the Raptor booster launching the crew transport in orbit around Earth. The booster would then return to the launch pad where it would be loaded with the refueling craft. After the booster launches again, the refueling craft would dock with the transport before fueling up and beginning the trip towards Mars.
http://www.space.com/34214-fly-through- … video.html
Did you watch the videos? What did you think?
I find that College Education is highly over-rated, it costs too much for what it gives you! Maybe the money we spend on College education would be better spent on healthcare. I've been to college, got an Economics and a Computer Science degree, and I couldn't find the jobs for them afterwards, and I still owe a lot of money for college and I'm 49 years old! I looked for work from 1995 when I graduated to 2001 when I gave up. My mother died in 1995, I inherited her Florist shop, an was able to keep it running till 2001 with the help of my uncle, the rent got too high, had to close. So I started work as a limousine driver, and it barely pays the bills. So I'm not terrible impressed with college education and what it gives you. The price of college is terribly inflated, I see classes full of 20 to 30 students going deeply into debt to pay some professor's salary, I don't know why that salary costs so much when you divide it up among all those students! Maybe the professor uses expensive chalk! The prices of those textbooks are absurd! There is a huge difference between the price of a regular hard cover book which may cost between $30 to $50 in the Nonfiction section and the price of a College Textbook which can cost upwards of $250 or more, same paper, same hardcover, as far as I could tell, they weren't encrusted with expensive gems and gold leaf! Why are we taking out these huge loans t pay for this college rip-off! I think that money could be better spent on health insurance, as I think saving a life is more important than giving one an expensive over-priced college degree! College could be a lot cheaper without subsidy from the state! What if we returned college loans to the free market? What if we allowed people to use bankruptcy to discharge their college loans just like their other loans and credit card balances? It would be harder to get a college loan then, the interest rates for people who could get them would be higher, an a lot of colleges would have to close their doors because of fewer students attending, or they could try lowering their tuition rates! I don't think colleges need to cost nearly as much as they do! I think a college should be run as a business without subsidy from the government. Teaching people in college shouldn't be any more expensive than teaching people in high school! I see the same textbooks, the same chalkboards, the same classrooms, and the same teachers. Sure they teach more advanced stuff, but I don't know why it should cost more! I think the colleges are ripping us off with the help of subsidized college loans made by the government! The government should get out of that business, return it to the banks, and the Colleges will be forced to reduce their tuition rates if they want to stay in business! Does that sound reasonable to you?
Also on the point of socialism, I distinguish a social safety net from socialism. Socialism attempts to replace capitalism. I figure we should budget a certain amount for that social safety net and stay within that budget, rather than bankrupt ourselves to pay for every social program we can imagine. My Economics degree didn't help me to get a job, but it did improve my understanding of economic relationships, my father was an Economist besides. Seems what professors teach is highly slanted towards the left. There is something called the multiplier effect for instance, it seeks to justify government spending as a driver of the economy, it states that when the government takes money out of your pocket and spends it there is a multiplier effect, the money paid to government workers gets spent in grocery stores that pay their workers and so on, but this is a sleight of hand, as you don't pay attention to the person who got his pocket picked by the government, there is a negative multiplier effect in that the money that gets taken out o the taxpayer's pocket does not get spent at the grocery store, the grocery store doesn't hire people and pay its employees salaries with that money the government took. The two multiplier effects cancel out and its simply a redistribution from a productive sector of the economy to he government sector. Too much government means less economic growth, as performance in the government sector is not determined by economic productivity as it is determined in the private sector, this slows down economic growth as we have seen over he past 8 years. It would be nice if I could get a job with all the stuff I know about economics, as it seems that the people running the government know so little, and they are messing up the economy big time!
Capitalism is competition, anything without competition is not Capitalism, its a matter of definition! Those people who corner the market, those people who establish monopolies are not obeying the rules of Capitalism, in other words they are cheating. Having governments establish monopolies is not a cure for corporations establishing monopolies. There are two sorts of people in the world, there are those who will attempt to sell you something to earn a buck, and there are those who will stick a gun to your forehead and demand you hand over your money, in a manner of speaking, socialism is the latter, it is the state trying to take your money, ostensibly for a good cause, but it is trying to take your money by force. Socialism starts with the State taking your money, and then perhaps providing your with a service in return. Capitalism is someone offering your a service in return for money, if you say no, you don't get that service, its as simple as that.
Furthermore, leaving people hard on their luck is evil. Socialism is based on good Christian values.
Christian values is about charitable giving, its not about the government taking your money and giving it to the poor - that is not charity. Jesus never advocated stealing from the rich to give to the poor, that is a Robin Hood thing, not a Jesus thing!
Help someone when they're down.
There is nothing about pure capitalism which stops you from giving to charity, but the thing is, that's your decision to give to charity, not the state's.
The goal is not to make then addicted to handouts, the goal is to get people back on their feet so they can be productive.
Hard to be productive when he economy is not growing and you can't find a job. If the government raises taxes on people who might hire you, they won't hire you. You get people back on their feet by providing them with employment, not by taking away their employment through taxes and regulation.
American Conservatives who complain about socialism tend to come from the bible belt. Why don't you go talk to your local pastor.
Did I ever give you the impression that I was a "Bible Thumper?" Have I quoted scripture to you on this website? I was raised as a Presbyterian, my wife is Catholic, but I don't really know whether there is a God or not. I am not someone who lives in the past, I find it hard to imagine a God that really cares about the things people in the Middle East care about, you know Holy land, whether you should eat pork, grow a beard, or wear a funny hat. I can't imagine the creator of a Universe that is 60 billion light years in radius really cares about such trivial little things by the sentients of an insignificant planet in this vast Universe! The Universe I see when I look in the sky does not seem to be the same Universe that is described in the Bible. I understand perfectly well what is right and what is wrong, I am much in agreement wit most Christian morals, I don't particularly care for the Doomsday Cult aspects of the Christian Religion. I look at the Universe, and I find a Universe that is not that old compared to how old it could get. 13.7 billion years is still pretty young for this Universe, and I'm supposed to believe that God would start all this just so he can have Judgment Day in a short little time relative to the lifespan of the Universe.
Tom, you are wrong about everything.
It's not socialism vs capitalism. On their own, neither works. What works is both in balance. Capitalism without controls results in corporations growing to become monopolies, then they gouge their customers.
well then its not Capitalism if they do, part of the definition of capitalism is there is competition. What socialism argues is that because this happens, Government might as well get into the act and establish its own monopolies. Government gouges customers all the time with its high taxes. Government doesn't give you a choice about whether to pay for something or not.
Capitalism without competition destroys all creativity.
Such a thing is an oxymoron, by definition Capitalism involves competition. Big corporations don't always like competition, they want to maintain their positions against competition, because they have more to lose from it than to gain from it, the small companies take on the "top dog" in the market through competition. Large companies are more amenable to higher taxes because it keeps down capital formation and thus their competitors.
Larger corporations try their best to destroy competition. So regulation is absolutely necessary.
Regulation is expensive and thus destroys competition. Large companies have greater efficiencies, so it is easier for them to comply with regulation, since they can afford entire departments to do so, not so with "mom and pop" businesses.
Socialism is about cooperation. People accomplish a lot more when they cooperate. Most companies work toward the common good of the company. When employees get snarky and competitive within a company, it greatly damages the company.
You ever work on a team when some of the team members aren't pulling their weight? In a competitive situation, if too many members aren't pulling their weight, the team loses, but when the team is the government, it just ends up wasting your tax money. one of the reason NASA has accomplished so little since the Moon missions is that it knows how to waste your tax money. How much money did it waste on Space Station Freedom during the Bush years? How many billions of dollars were spend on paper studies?
When I worked for a bus manufacturer called New Flyer, I was first hired to optimize the operating system of their computer. I hoped it would grow to a permanent job, and did. I didn't realize the computer person with the title of "supervisor" had wanted the job of manager of the computer department, but corporate executives chose to hire someone from outside the company. The supervisor and manager were in a power struggle over who was really in control. The supervisor had to take maternity leave, I was asked to run the computer in her absence. She would return to her job after maternity leave. Fine, I was excited at the responsibility. But she had ensured the manager didn't know how to run weekend and month-end processing, and removed automation. She manually updated command scripts with dates before running. I was asked to run it her watching the last month-end before she left, but when I came to work that Saturday, I found she was absent. I phoned her home number, turns out she intended to run it from her home. I pointed out we were ordered to do it together. It failed. Because my first job was computer operating system performance tuning, I turned on detailed data logging. That log was used to monitor computer usage during the day: CPU usage, memory, hard drive, etc. However, one side effect is it logged every command everyone entered, with a time stamp down to the fraction of a second. I had documented evidence she deleted the script that failed, and copied into its place an old obsolete version. She sabotaged it. The manager didn't want to hear it, I was blamed anyway. That weekend the computer failure set back the factory assembly line. The company had slow sales earlier in the year, the president had managed to increase sales and tried to increase production to a higher rate than the company ever had in the past. All so the annual financial report would look good for investors. The president was pissed that this happened. The manager refused to look at the evidence I provided, instead tried to make me the scape goat. I ensured everything ran smoothly, came in 7 days a week. Other managers saw me come in on weekends while the manager didn't. The manager tried to treat that as a problem. I ensured the next month-end went smoothly. So the following weekend he ordered me not to come in to work. The weekend I wasn't there, it failed. The manager ordered another programmer to set up weekend processing, but she did it wrong. I failed so badly that Thursday night backup had to be restored. All work in all company departments that Friday and weekend had to be done over. When I came in to work, before I could sit at my desk I was taken to Human Resources and fired. Even though I didn't come in to work that weekend, I was blamed anyway. The human resources manager gave me a notice that said I was laid-off due to lack of work, but whenever a potential employer called for a reference, a Vice President claimed I was fired with cause. I only worked for that company 3 months, but they black-balled me from the computer industry within my city. I had a relative pretend to be an employer seeking a reference, their corporate executive Vice President claimed I was fired with cause. The employment agent told me they manager was fired a month after he fired me. Then all computer personnel was either fired or quit, replacements hired, they were either fired or quit. That's a 200% personnel turnover in 14 months after they let me go. The last computer person accepted a job elsewhere, but it was one of their suppliers. New Flyer told them to wait until they found someone to replace him. It was only after I was able to tell employers this that employers were willing to consider me. I only worked there 3 months, but was unemployed and unable to gain employment for 17 months after.
With large organizations such as this, office politics often trumps business and efficiency, a lot of these middle managers are protecting their turf, instead of dealing with what the customer wants, this is also and example of poor management practices! People in large companies often get complacent, what happens in one small office or another often has no measurable immediate effect, big companies can use their "bigness" to hem in competition, they can influence politicians to regulate the market to big company's advantages, and they can also get those government contracts to compensate them for those higher taxes they might have to pay.
You want a more American example? I saw a TV documentary. Back before there were railroads, when America built canals so ships could deliver cargo, one company got a government contract to build a canal. To ensure the canal was build correctly, the government did not pay the company until the canal was finished. The employer chose to not pay his employees until he got paid. After 3 months of work without pay, the employees went on strike. This was the first major strike in the United States. The employer tried to hire thugs to beat up strikers, force them back to work, and still without paying them. American labour unions were created after this, to ensure workers are actually paid. By the way, workers were required to work from sun-up to sun-down 7 days per week.
Pure socialism doesn't work. Pure capitalism doesn't work. America is a hybrid; that does.
Pure capitalism is when two or more people in the wilderness trade their goods and services in the absence of any regulating authority. American Indians practiced pure capitalism, fur traders in the wilderness practiced pure capitalism. Capitalism was around before Karl Marx gave it a name, the difference is Capitalism was always there whenever there were two or more people wanting to make a trade, however Socialism is an invented or made thing.
Much like Frankenstein's Monster, Socialism is a made thing, it is not natural!
Plutonium fission bombs are a terrible idea for ground launch. The main point of pursuing pure fusion rather than two-phase devices is to avoid contaminating the biosphere with fission products and heavy actinides. This problem has stalled nuclear pulse propulsion for nearly 60 years.
If we can crack the pure fusion problem, then the sort of colony planting missions GW was talking about become practical and politically achievable. Fast neutrons will activate some of the debris, but overall radiotoxicity is orders of magnitude lower than even the cleanest bomb propelled design. Far out is space, away from the Earth there are more options. But what we most need at this point is cheap ways of getting large items into orbit, like small O'Neill colonies and SPS factories. These would require a lot of inorbit assembly if we launched them using Falcon heavy and costs would be unaffordable for the scale of infrastructure needed. We need something that can lift 100,000 tonne payloads for a few tens of dollars per kg and take it up to L5 with minimal additional complication. Its hard to see any other option than nuclear pulse, but it will never be politically workable if it is fission based.
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Tom Kalbfus wrote:What is the first thing that would clue you off that you were on Mars? What else would you notice that was different from Earth?
Acc. to Gerald Nordley the plants and animals won't be just taller.
They'll be HUGE in all dimensions.
Interesting.
Here is a possible animal we might genetically engineer for a terrafomed Mars. Remember the Oliphant from Lord of the Rings?
http://www.bing.com/images/search?q=ima … ay&first=1
This gives you a better idea of its scale and what it can do.
Here is a still. These creatures look similar to elephants, so it appears that we might create such creatures from Elephant DNA, they question is, would we want these things on Mars?
Its because people let their emotions get in the way of their reaching a logical and rational conclusion about what works and what doesn't. For instance, people so much want to believe that socialism works, that they ignore all the evidence that it does not! Socialism has failed every time it was tried, yet people so much want it to work, they have kept trying it for almost a century now. What is that famous quote by Albert Einstein: "The Definition of Insanity is when one keeps on trying the same thing over and over again, and expecting different results." And Einstein was a socialist. Now I believe in a social safety net, but socialisms believe in socialism as a replacement for capitalism, not just in the social safety net aspects, they refuse to acknowledge that welfare programs have a cost, and that the more welfare programs you have, the less growth in the economy there will be! They tend to go for too much social welfare, more that a society can typically afford! What they should be doing is figuring out a budget for what can be afforded for social welfare, and prioritize the most important things that government needs to solve and spend the money on that without breaking the bank an bankrupting the country trying to solve every imaginable social problem with government spending! Socialists aren't very disciplined in their spending habits, they tend to max out society's "credit card", and they ruin countries while doing so. I try to talk to them, telling them that they shouldn't do this, but they do not listen. They do not understand that it is capitalism which provides the funds for their social programs, they ten to tax too much to fund their programs and they ruin the economy in the process, they do it time and time again and keep on making this same mistake, if you show them evidence for what they are doing wrong, they say you are lying, they then finesse the data to show that their programs are working, and refer to some economic statistics to show the economy in the best positive light, they talk about jobs rather than economic growth, because they can't achieve greater economic growth with their high taxes, so they focus more on redistribution instead, bringing everybody down rather than raising up the poor!
The funny thing about socialists, is they tend to be frugal with their own money and spend thrifty with other people's money, they want to raise society's taxes, yet hire an accountant to minimize their own taxes! There is a certain part of them that is willing to face reality when it comes to their own finances, so they don't bankrupt themselves, but when suggesting social policy, there are no financial limits that they are willing to consider!
I carried out a few scoping calculations. I am initially assuming a silicon carbide impactor. It is relatively cheap and has crushing strength of 2GPa. For a right circular cylinder bullet (L = D) weighing 1 gram, D = 0.735cm. Assuming a design factor of 2, the maximum tolerable pressure on the prjectile is 1GPa, corresponding to a maximum possible acceleration of 40million m/s2. The required accelerator length is 12.5km. For a 0.1gram bullet of the same proportions, maximum possible acceleration is 91million m/s2 and accelerator length is 5.5km. Basically, reducing projectile mass by a factor of 10 cuts the required accelerator length by roughly half. So a 1mg projectile could be accelerated by a mass driver about 1km long and would deliver an explosive yield of about 7tonnes TNT. Maybe enough for a ground launch Orion if pulse frequency is high enough.
Easier to use plutonium for a ground launch. I think nuclear fusion is better for interplanetary and interstellar trips than for ground launch, where you have a whole host of better options than nuclear fusion. What you want for a ground launch I high acceleration to overcome Earth's gravity and also to increase your velocity above that. With interstellar travel using generation ships, I think nuclear fusion is best. Fusion is relatively cheap compared to the other options. Lasers and other beamed propulsion methods required sustained homefront efforts, and a generation ship would take centuries to reach its destination, that is asking a bit much for the society that sent the ship. Nuclear fusion is contained within the ship, and it is capable of reaching 5% of the speed of light and then slowing down upon arrival. Antimatter is expensive and dangerous to store for long periods of time, say a couple centuries, fusion fuel (Deuterium, Tritium, and Helium-3) can be stored in tanks made of matter without exploding! the Interstellar ramjet has problems related to drag, has a slow acceleration rate, and a maximum speed, and it would be much easier just to use stored fuel for a generation ship like Rama.
Would the Rama Starship, that I outlined in the other thread be big enough to use this kind of propulsion?
Just as a review it is 54 km by 16 km wide on the inside or 34 miles long and 10 miles wide in Imperial Units. What if we made it 36 miles long and 12 miles wide on the outside? One can accelerate pellets along the inside and collide them in reaction chambers to produce thrust. If the rim is 16 km long, it is 50 km in circumference. To get it up to 1000 km/sec would require circle the rim 20 times per second, the centripedal acceleration would be 12,882,170 times Earth's gravity. Well actually 1000 km/sec of relative velocity is required so we can cut that down to 500 km/second going in opposite directions, and colliding pellet with pellet, in which case the centripedal acceleration for both pellets would be much reduced at "only" 3,220,542 times the force of gravity at Earth's surface. Each pellet would have to be precisely aimed to collide within the reaction chamber, or maybe behind an Orion Style pusher plate. When the pellets hit, you get a nuclear explosion. Some heat exchangers can turn some of that waste heat into electricity for use in the generation of artificial sunlight and other things such as car charging stations and the like on the inside. the space between the inner and outer hulls is where we would put the apparatus and fuel supply.
Tom Kalbfus wrote:RobertDyck wrote:Same thing happens in Canada: Conservatives talk about reducing the size of government, balancing the budget, reducing the debt, reducing taxes. But once they're elected, they do the opposite.
You mean pseudo-conservatives like Mitch McConnell and John Boehner? I believe what you are referring to is career politicians.
Excuses, excuses. I mean all Republicans. Especially those who call themselves "Conservatives".
RobertDyck wrote:Parliamentarian systems seem to encourage career politicians as you have to be a member of parliament to be elected Prime Minister. If you don't already draw a salary as a Parliamentarian, then you can't run for Prime Minister!
Wrong. The leader of which ever party has the greatest number of Members of Parliament in the House of Commons is Prime Minister. Usually. That is someone the party chose as their leader, so it could be an individual who is not an elected MP. There are rules to deal with a Prime Minister who is not an elected MP. He (or she) is not allowed to sit in the House of Commons, but is allowed to stand. He (she) is not allowed to vote on anything, but can answer questions or make speeches. Normally the Prime Minister gets an MP salary plus an additional salary for Prime Minister. The salary as Prime Minister is equal to the salary of an MP, since the Prime Minister normally gets both he (she) is normally paid twice what a "back bench" Member of Parliament gets. But if the Prime Minister is not an elected MP, he (she) only gets the Prime Minister's salary. There is an official residence for the Prime Minister; not as large or lavish as the official residence of the Governor General. The Prime Minister's residence was originally built by a rich businessman, the government acquired it during the 1800s. Its name is the one the original owner gave it; he was an immigrant from Whales so he gave it a Welsh name. No one can pronounce it, so its normally referred to by its address: 24 Sussex Drive. The Prime Minister does not have to pay for this house, it's a perk that comes with the office, just like your White House.
One of the differences between the United States, and the parliamentarian system of Canada is that here in the United States, we do not elect parties but individual people. Parties are a means to get individuals elected to office, but they are not always used. Our Constitution does not refer to political parties. When our nation was founded partisan politics was looked down upon, political parties operated in the shadows, parties in George Washington's time were informal groupings of like-mined people who were organized to get their people elected. George Washington was a member of a such a grouping called the Federalist Party, the opposing party was called the Democratic Republicans, this informal group is the ancestor of the modern day Democratic Party, it was the party of Thomas Jefferson, and James Madison, the President that ordered the invasion of Canada in the War of 1812, by the way! (It wasn't James Monroe - that was my mistake to get those two confused!) You see the United States doesn't have partisan politics built in to its system, it leaves open a path for a non-partisan independent to be elected. Donald Trump could have run as an independent, it would take a lot of money to do so, but Donald Trump chose to make use of the Republican party and campaign donations, as it would save him from having to sell one of his hotels to finance his campaign. I don't know if someone like Donald Trump could ever be Prime Minister of Canada, a person could be a financial genius, and a self-made billionaire, but if he is not a career politician, they Canadian System would not let him in, he would have to show experiences as a politician, other politicians who were elected would have to elect him, and thus they Establishment is built into this Parliamentary System.
There is another rule. Normally if Parliament votes non-confidence in government, that causes an election. But if a non-confidence vote is soon after an election, then the Governor General is required to ask the leader of the official opposition if he/she can form a coalition that will hold confidence of majority of Parliament. If so then that leader is appointed Prime Minister without an election. This rule was established when members of Caucus elected their leader. Since the 1920s it has been general party members in a national convention. One reason is to ensure an election isn't forced the first day Parliament sits after an election. Another reason is so the Prime Minister doesn't try to coerce Parliament into passing bills by threatening an election if they don't.
It might also mean that it I harder for a politician to do unpopular but necessary things such as fight inflation for instance by slashing government spending, usually when such is done, the pain comes first and the benefits come later, this is easier to do when th elections come on a fixed schedule, rather than whenever there is a vote to call them. Sitting Presidents can be removed through a process called Impeachment. I have to say, that if Barack Obama was Prime Minister of Canada, and he held the same attitudes towards Canada as he does toward the United States, he would likely not be serving as Prime Minister for the full 8 years he served as President. Obama really only had to be popular twice, once before the election of 2008 and once again before the election of 2012, and with the help of Hurricane Sandy which wracked the New Jersey coast! There Obama got to show his "True Concern" for the people of New Jersey, without actually doing anything about it other than going on a tour of devastated areas with New Jersey Governor Chris Christie and having cameras film every step of the way! We also have a biased media that wants to get Democrats elected no matter what, instead of accurately and fairly report the news! If you want to know the truth, the Media isn't the place to go. One has to go to multiple places to figure out what actually is happening rather than get the Media's point of view and bias!
This rule was tested in 2008. The Prime Minister wanted to take money away from all parties but his own. He declared the bill is a confidence measure, meaning if it doesn't pass it forces an election. He said that before the parliament sat the first day. That year voters elected a minority government, meaning no single party had more than 50% of the Members of Parliament. All parties other than his said they would vote against this bill. Since this would be a confidence vote, and since you can't get more "soon" than the first day Parliament sits after an election, this means the Governor General would be required to go to the leader of the Official Opposition. That means the leader of the party that has the second most Members of Parliament. Furthermore, leaders of all parties other than the Prime Minister's held a press conference in which they signed a document pledging confidence in the leader of the Official Opposition. The Official Opposition would form a coalition with the third party. The 4th party would not be part of the coalition, but the document stated the 4th party would not vote non-confidence for at least 6 months after change of government. Oops! The Prime Minister got himself fired. All this was before Parliament sat the first day after the election. So the Prime Minister begged the Governor General to prorogue Parliament. That means it would it in recess for a few months, and all bills that were in process are cancelled. If anyone really wanted a bill that was in process, it would have to be re-introduced, start over from the beginning. So that meant the bill to take away other party's money, the one that was about to get the Prime Minister fired, would be simply cancelled. The Governor General agreed. So the Prime Minister save his job through a technicality. He never again tried to force through a bill by declaring it to be a confidence measure.
Tom Kalbfus wrote:Everybody in Parliament is...all about keeping their jobs!
How is this different than Congress?
Not much these days, it used to be that someone ran for Congress because he wanted to get something done, as opposed to just wanting a job to earn a living.
Tom Kalbfus wrote:Trump by contrast is an Amateur Politician, he never got elected to anything!
Every politician can say that, until they are elected. Make no mistake, Trump is out for his own interests.
The question is, what are his interests and do they coincide with ours? I'm pretty sure Donald Trump doesn't just want a government job, he has all the money he needs, he could retire if he wants, he needn't do a single thing ever again but go on vacation for the rest of his life! I'll tell you what he does want. Donald Trump wants fame, he wants notoriety, he wants he place in the history books as some thing more than just another billionaire, to him, getting elected President would be his crowning achievement, and to get his place in the history books, he needs to be a great President, like FDR, his immediate predecessor from New York!
Tom Kalbfus wrote:You know George H. W. Bush said he'd vote for Hillary Clinton, so that shows you what kind of conservative he is, that is, he isn't one! No big surprise there, he did after all call Reagan's tax cut plan, "Voodoo Economics".
Here is an info-graphic posted on Facebook by an American friend.
https://scontent-ort2-1.xx.fbcdn.net/v/ … e=586D6855

That just goes to show you how far outside the Establishment Donald Trump is, if these men would band together in spite of their political differences to oppose him. This shows that Donald Trump isn't one of them, he is a true outsider, not one who is part of the Establishment, who earns his bread and butter through politics as these men did.
I think mainly its because we could not get the required mass into orbit at present. It is 54 km by 16 km in diameter, in terms I'm more familiar with its 34 miles long and 10 miles wide. if we unroll this cylinder we have a rectangle that is 34 miles long and 31.42 miles wide, that is 1068.28 square miles. An O'Neill Island Three Cylinder is 20 miles long and 4 miles wide, giving us 251 square miles per cylinder before you subtract half for the Solar windows to let in sunshine, So basically a pair of two Island Three Cylinders equals one quarter the land area of a single Rama Starship. The folk at NSS say that a Titanium hull would be strong enough to hold the cylinder together under that centrifugal force. The Light Source for the Rama Cylinder looks to be artificial, essentially they are giant light bulbs of some sort, something that can deliver the equivalent of sunshine to the interior of the cylinder, they also take up less land area than O'Neill's windows. I imagine would would not want to be standing next to these giant light sources when they are on, as they would generate a lot of heat. I imagine that for safety you might want to build reflective walls around them s they shine most of their light into the opposing landscape. Air is mostly transparent to visible light, so the light will pass through that, reflect off of clouds, and when it I absorbed by some surface, such s the ground, it will be reradiated as heat.
This picture shows the light sources, they look like giant plasma tubes. I think they would not be as bright to look at as staring directly at the sun, since their total illumination has to add up to the Sun as seen from Earth, and that brightness is spread our over long tubes instead of one round disk in the sky. The Cylindrical sea is a break in that lightning, but enough light spills over to illuminate it and the replica of the island o Manhattan. I suspect most of the residents would live on than Manhattan replica, the surrounding country side would b used to grow food. Every street and avenue on Manhattan Island has its counterpart in the Manhattan replica. I think if you or I were walking around among those buildings, some things would look familiar, some things would look different. You have for instance the Twin Towers still standing, the floors of those buildings would probably be used for different purposes than the original, as there would not be as much "World Trade" inside the Rama Cylinder.
I think there may be a Grand Central Station on 42nd street, there maybe trains to other parts of the cylinder from there, I think they would mostly be subway trains though. No use in having rail road crossings if the entire landscape is artificial. There would be a Brooklyn Bridge, although it would lead to farmland instead of Brooklyn. The Outer Boroughs are entirely missing, so the population would be less than the Greater New York Area, and consequently that means less traffic in the streets. In this New Manhattan, it would be easier to find a parking spot, and you spend less time stuck in traffic jams. The Automobile would only supplement a mass transit system that runs the entire length and breadth of the cylinder, with subway stations popping up amongst farms and the like. But if one likes to travel those roads in one's car, one can do so. I sort of doubt those cars would run on gasoline, probably on hydrogen fuel cells or electric batteries. Recharging stations should be quite plentiful, all the energy ultimately comes from the starship in any case.
Probably the ship would accelerate at a fraction of Earth's gravity, possibly by under 1 percent, buildings and structures would have to be buttressed with withstand this acceleration, the landscape will seem to tilt slightly when the ship is accelerating. The cruse velocity would be between 1% and 5% of the speed of light. One has to take into consideration the potential population increase within the cylinder during this journey, so it can't be allowed to stretch past a couple of centuries. the Ship will probably maintain contact with Earth during this time, it certainly is big enough to receive radio signals. Propulsion would probably be fusion, larger fusion reactors would be more efficient, maybe even pulse fusion.
http://www.bing.com/videos/search?q=Ram … &FORM=VIRE
This is not the Rama from Arthur C Clarke's Rendezvous with Rama, that Rama was built by Aliens, the Rama shown in the video above was built by humans, and was built for humans, it is much greener than Clarke's Rama, and there was an island in the Cylindrical Sea that reminded the protagonist of Manhattan, so he called it "Manhattan" but that was just because it had a bunch to tall buildings, it wasn't modeled exactly on Manhattan as shown in this video. Rama has a shape of cylinder of length 54 km and internal diameter 16 km. The Rama in the video has those dimensions, but the particulars are human oriented, there is an actual replica on manhattan, their are trees and highways etc, as if it were designed and build for humans.
This is the Rama of Clarke's Novel. Looks a bit spare doesn't it. Has a metal floor where nothing can grow, no trees, no highways etc, and the Manhattan there is obviously not our Manhattan.
So lets assume we build it according to these specifications, but design it for humans. First question is it big enough? Can it get us there? Aside from the magical engine described by Clarke, what would be a realistic engine for this thing? This thing would rotate once every 4.23 minutes to produce 1 gravity. How fast would you want it to go? Clarke's Rama accelerated unrealistically hard for a starship this size, in fact it accelerated so hard, it didn't need to be an Ark Ship! A realistic Rama would accelerate gradually, probably a fraction of a gee. The primary gravity is produced by spin, you don't want to tear up the landscape with hard accelerations, do you.
Blame liberals for everything. I got news for you, when Republicans are in power the deficit is even larger than under Democrats.
The Debt the Obama Administration incurred is greater than all previous presidents combined from George Washington to George W. Bush!
Same thing happens in Canada: Conservatives talk about reducing the size of government, balancing the budget, reducing the debt, reducing taxes. But once they're elected, they do the opposite.
You mean pseudo-conservatives like Mitch McConnell and John Boehner? I believe what you are referring to is career politicians. Parliamentarian systems seem to encourage career politicians as you have to be a member of parliament to be elected Prime Minister. If you don't already draw a salary as a Parliamentarian, then you can't run for Prime Minister! Seem unfair doesn't it? How can you change they system if you are part of the system. Everybody in Parliament is pursuing their career, they want to keep their jobs, the whole purpose of what they do in Parliament is all about keeping their jobs! Trump by contrast is an Amateur Politician, he never got elected to anything! Wha professional politicians are good at is getting elected, they arn' good at doing anything else, they can't solve problems, but they can blame others for preventing them from solving problems.
Conservatives were elected in Canada in January 2006. According to the Parliamentary budget officer, on 17 March 2011 the federal debt equalled its previous all-time high, and the number of individuals hired in the federal civil service was 14% more than election day 2006. Bill Clinton did a lot of things wrong, but the federal budget was balanced in year 2000. George W. ran the US into deficit within 2 weeks after his inauguration, long before 9/11. He ran up the deficit, mushroomed military spending. Under George W. Bush the Republican Congress they ran the US economy into the ground and caused the banking system collapse. Yes, Congress likes to blame bank executives. But Congress demanded banks find a creative way to fund the federal government deficit. The junk mortgage scam was what they came up with. They just obeyed orders from Congress, it was the Republican Congress who were the source of the problem.
We in Canada have our own problems, but they're not as bad as problems you guys have. No we aren't going to join.
That was the Democrats idea. You know George H. W. Bush said he'd vote for Hillary Clinton, so that shows you what kind of conservative he is, that is, he isn't one! No big surprise there, he did after all call Reagan's tax cut plan, "Voodoo Economics".
And for the last 8 years, our economic growth has averaged around 2% while over the same period, part of which Canada was under a conservative government, its economy grew faster, but then Canadians looked south of the border, and they saw America's economy struggling, and they said, "Hey, our economy is growing too fast! There are too many jobs up here, we got to slow it down to 2%!" and so they elected a liberal government to fight excessive growth in the Canadian economy so it could be more like the USA! And Candians saw those riots in Chicago on television and they said, "Hey, where are our riots! How come there are no race riots in Canada? We got to fix this!"![]()
Karov,
I recalled a book "The Iron Sun".
It is from a long time ago, so I am not sure I recall it correctly, but I think it proposed to manufacture a black hole using a bussard Ram Jet.
https://en.wikipedia.org/wiki/Bussard_ramjet
Anyway here is a reference to it I think:
https://www.kirkusreviews.com/book-revi … taneous-t/
I don't particularly buy into the potential success of doing so, or that faster than light travel or time travel could be done with it, but the idea of creating/manipulating objects is in that idea.While I was chasing that information around on the web, I stumbled onto this: (They propose that dark matter is primordial black holes)
http://www.businessinsider.com/dark-mat … les-2016-7
According to this there could be black holes all over the place, a lumpy universe indeed, if so.So, if that were true, I wonder if dark energy could be:
https://en.wikipedia.org/wiki/Hawking_radiation
Hawking Radiation from all those primordial black holes that supposedly make up 80% of the matter of the universe?
If so, then black holes are also sort of like the theoretical white holes:
https://en.wikipedia.org/wiki/White_hole
So, is 80% of the universe still to pour out into space over distant time spans, if this proves true? If this were true, then we might still be in the "Big Bang", but it is a big black hole wind.What does this have to do with your material?
Well it might seem that it is a lumpy universe, and if there are all those black holes, you better be careful when you construct your directed solar systemsIn Sci Fi, sometimes black holes have been used as an energy source. Not a recommendation, just more speculative information.
I have been stumbling on a lot of weird stuff lately, some provided by you in this thread, so I am going to guess that at least some of it is going to prove "Trueish", and so, we may have a new notion of how things are/work in a few years.
There is a way to make a black hole, you need to exceed a certain energy density. You are aware that as an object approaches the speed of light, its mass increases. If you have a giant particle accelerator, lets say on the order of 1 AU long, and you slam a baseball sized object into a target at near the speed of light, the impact might create a black hole, the energy density plus the relativistic mass might do it. Once you have a black hole, there is a certain threshold mass you need to have to prevent it from radiating away with Hawking radiation, if it is above that threshold you can feed it mass at a rate equal to or exceeding the amount of hawking radiation it puts out, what you have in effect is a way to convert matter into energy without using antimatter, and this is important because now your fuel can be ordinary matter, jus feed it to your black hole, and you get back radiation, or you can simply use the black hole's mass as fuel, and eventually the black hole will explode. With a more massive black hole, you just feed it matter, on the way down, some of that matter gets converted into energy and the rest enlarges the black hole. Black holes could be important power sources, could be used to power starships, it could make a more efficient engine for an interstellar ramjet for instance, or it could be used to power an artificial sun for a rogue planet you wish to terraform.
Suppose the Earth was a frozen rogue planet, and its moon accompanied it. Place a mini black hole at the L2 point behind the Moon, and feed it mass, from an mass driver, hurl moon rocks into it, and get black Hawing radiation. If the Moon gets enough hawking radiation, it will glow like the Sun.
The American Revolution represents a missed opportunity, the missed opportunity was Britain's they had the opportunity to spread their country to the New World, but instead they chose to make colonies of them and exploit them for immediate gain, part of the attempt to do this was the Tea Tax which sparked the Revolution. the Revolution should have been throughout the Empire, instead it was limited to the 13 colonies. The UK's other colonies, Canada, Australia, and New Zealand broke off, so where is the British Empire today? It could have been a republic bigger than the United States, it could have kept Nazi Germany and the Russians in check, but it broke apart instead because of petty rulers that wanted power!
I didn't intend to continue beyond what I provided, but I will say this. Borders are kind of an imposed method of understanding where you belong, and what is yours (Sort of, actually I think I am entitled to die, but not much else. What I get away with is another thing)
Don't minimize what we have inherited as firmware from the history of our "Creation", that is the origins of the pattern we replicate and continue.
Also, don't back someone in a corner, or take away their teddy bears, unless you have to for some moral reason.
So you agree that had history gone a little different, I could have had this conversation with a Confederate Southern Nationalist. History would not have had to have been much different, a little thing like an order not getting lost and found in 1862 could have done the trick. The tricky thing is that borders also cause wars, where there is two countries, there could be a war between them in the future. Politicians and leaders who want power often drive their nations to war! Putin does this for instance. If you get two leaders, two countries and a disagreement between the two, you can have a war, the borders are he fault lines between such things and the more borders there are, the more likely there is to be a war. If the British Empire still existed and it included the United States, World War II would have been unlikely to break out, cause Hitler would not have seen away he could have won. If he had bombed London, the resources of North American would have landed on him like a ton of bricks. Large states tend to discourage small aggressors from attacking them.
I figure one way towards a world government is to coalesce a large state, making it bigger until it covers the globe, I would do it voluntarily based on mutual interest, and if people refuse, and they get picked off by a future Hitler, I would say, "I told you so!"
Colonizing Mars is all about creating a new society. Naturally if one is open to creating one on Mars, one should not reject out of hand the idea of creating one on Earth. RobertDyck makes a bunch of emotional arguments against, based on the notion that we're "Us" and they are "Them", and that somehow because we have a higher population than they do, that we would want to exploit or ruin them. Canada used to be a bastion of British Imperialism, it is that no longer, but what is it now?
Imagine an alternate history if you will, one where the South won the Civil War and became a separate country called the Confederate States of America, they have their own flag, national anthem, and a Capitol in Richmond, Virginia, but they have since abolished slavery, so for them its no longer an issue, Yet they still have "Dixie" as their National Anthem, they have their own Senate and House of Representatives, a President and Vice President, just like we do. Now imagine I am having this discussion with GW Johnson - an Ardent Confederate Nationalist, and I bring up the subject that since slavery is no longer an issue, why should we reunite out two countries the USA and CSA. And GW Johnson starts talking about Southern Honor and how you "Yankees" want to exploit us Confederates. I could have a similar sort of conversation with him in that parallel universe that I'm having now with RobertDyck. I could argue for instance that a country like the CSA no longer stands for anything other than not being a part of the USA, and he might make a bunch of emotional argumens supporting Southern Independence, and he might mention the banking collapse. etc. I would then mention that when the CSA was founded, it wasn't by a bunch of liberals.
That is a funny thing, you establish a bunch of borders and people seek to justify them. The United States was established for a specific purpose, and I think it was a good one, it wasn't established t maintain slavery or as a bulwark of British Empire, those other two causes have gone by the wayside, but not that of the United States of America. The Confederates lost their bid for independence while the Canadians remained within the British Empire for a time. I think we are lucky to be in a country that still stands for something other than not being a part of someone else.