Obtaining and maintaining thevacuum level that would be required for the hyperloop to work is no small task. Most people don't understand what's required to pull a decent vacuum and keep it at an acceptable level.
I've had some exposure to vacuums and creating them (although I specialized in the thermal gas sources) and I have been wondering about how they plan to do it although they seem to be well within mechanical pump range and not needing anything to exotic like diffusion pumps. It also does pose some interesting ideas. That you have a tube with a large car (piston) basically means you have made the entire apparatus into a large mechanical pump. Move the car at slower speeds down the tube with higher pressure ahead of it past various pump/vent stations to help clear it, and once in operation, just the action of using it might provide the pumping action needed to keep it at acceptable levels.
Slam an asteroid into Mars and the outgassing will make you an atmosphere and melt ice for water. Add a magnetosphere and a large mirror orbiting the sun to increase sunlight and it's livable.
Thing is that we'd essentially need about a thousand comets the size of Halley' Comet to give Mars a thin but breathable atmosphere. Where to find such comets and how to move things that big, is one hell of a problem.
No magnetosphere. Its terraformable. Your oxygen would float odd into space, and
Once you're bothering to create an atmosphere to terraform it even on a time table of centuries, the losses due to such are trivial. With the energy requirements to build such an atmosphere, creating some sort of magnetosphere or block from solar wind would also be doable.
No way. Planetary astrobiology is a well-established science and basically Mars is not capable of supporting life. It has no atmosphere and more critically has no carbon cycle and never will have one because it has no tectonic activity.
You are explaining why Mars would have to be terraformed, not why it couldn't be. However, the energies, materials, and times needed to do so are what one would expect on remodeling a planet. If we gather the needed material to give Mars an atmosphere from ridiculously nearby comets in the oort cloud, the energy needed to do that in a century is measured in days total energy output of the sun. Once you're working on those scales, restoring the atmosphere or even creating some sort of shield to prevent its loss, along with making the surface habitable are pretty much doable. Even mining nearby moons of Saturn for an atmosphere would still be on the same scale. A better way might be to just build factories on Mars and smelt iron for building things there and thus create industrial release of gases such as we are currently doing with burning fossil fuels. Still, you'd be looking at jump starting the project by building a city sized space station on Mars with support mines and then having to deal with the lack of H, N, and C we find so useful. Even then, I suspect the timetable would be based in centuries.
Is this fact checking going to be like Politifact, which has said that an article or tweet is "mostly false" while saying that the facts it contains are true?
Personally, in my view Obama succumb to reality in foreign affairs.
My opinion also. Republican or Democrat, the realpolitik tends to take over. Look at Trump. Lots of things signed, no money to fund them, many dead in water. If it wasn't for the CRA and a dead Supreme Court Justice saved for him from the previous administration, pretty much nothing would have been done in his first 100 days even with both sides of Congress supposedly on his side.
Hillary was a Republican running as a democrat? Huh? Not even close.
Well, perhaps if social issues are your wedge issues, that's pretty true for Hillary, her husband, and even Obama. however, from the Democrat/left side, if looking at national security, privacy rights, economy, foreign policy, etc. They all appear as Republicans. The main complaint about Obama by those that voted for him was that it was pretty much a continuation of Bush on such policies. He may have gotten through some form of universal healthcare, but pretty much folded on FISA, business, Middle East, etc.
Because it gets lots of posts, even if many are just people complaining about it being on Slashdot. Same for everything Apple does, inequality of various people in the workforce, stuff on millennials, etc. If you want to see less of a topic, just don't even bother opening the discussion.
I don't think the quality of education has deteriorated at all, rather many students are choosing to get totally worthless degrees because they feel entitled to pursue their passion.
I keep hearing this but does anybody actually have data to back it up? From what I can see with a quick look is that half of student debt is held by STEM and Business degrees. Only 8% is for arts, less than half the amount that Sciences have. Arts and All Other are less total debt than Science and Business despite slightly higher individual debts. Perhaps when you said "art historians, music therapists, and western philosophy majors" you meant to add in MBAs, chemists and engineers but forgot
I never understood the DC and Marvel purchases. Sure they paid billions and got to make shitty movies using the existing characters, but how much less would they have made with their own characters? I suspect that the use of well-known preexisting characters probably didn't add enough to make the purchase worthwhile.
I will disagree and go so far as to say that I'm surprised it didn't happen earlier. The comic book industry is basically a self supporting business that creates some where around 200+* movies worth of stories with associated storyboards and then is able to run them past test audiences to see which ones are actually good, and gain traction. Not only are they able to go with proven storylines, but also with built in audience of fans. This has been going on for quite some time now, surprisingly starting with the independent comics with movies like rocketeer, Mystery Men, Mask, Road to Perdition, American Splendor, Scott Pilgrim, Hellboy, and pretty much everything ever written and also owned by Frank Miller or Mark Millar. They are not just paying for the characters, but also a great deal for the proven stories.
*IIRC DC is running 52 titles at 12 issues a title per year where a movie typically translates into three issues.
Except that the people living there almost universally don't WANT to be called Americans. A major factor is likely that the notion of "The Americas" as a consistent unit has been out of vogue for a few centuries.
Key word being "almost". I have met with people that get upset when people from the United States refer to themselves as Americans in exclusion to the other countries in the Americas. Most have been from South America, particularly Columbia for some reason, and occasionally somebody from Mexico. Luckily, I have caught myself when speaking to such groups and even earned brownie points by correcting myself to them before they corrected me.
Young people simply aren't consuming cable TV, newspapers, or magazines in the numbers they once did.
People still pay for cable TV, newspapers and magazines? They've never heard of teh intarweb?
Signed,
young people.
Pretty much any cable internet connection comes with TV channels also whether you want it or not. Newspapers in my area are to the point of delivering them for free if you ask, or if they can convince you to accept having to pick them up and throw them away. Magazines typically still add some value. If a magazine is still around, it probably is providing better information than what you can find online because they have better revenue to pay for the creation of content and is based on providing information rather than internet outrage clicks.
that is about the most tortured analogy I've ever read. sheesh! You've got cliffs, and cows, and cash.. how about sticking to cars and libraries of congress?
“If I had asked people what they wanted, they would have said faster horses.”
-Henry Ford
Now, people are asking for more fuel efficient cars and more roads, and just perhaps what will take over will be something else like a car that doesn't use fuel (electric) or public mass transit that they don't know to ask for or don't think they want.
And from other examples in the discussion, it's as if they are not just offering the same brand but the same model of tire but the manufacture of the Wal-Mart tire uses inferior products which cannot even be determined before purchase.
Am I the only person confused as to why we're discussing mop buckets on slashdot in such detail?
I suppose there is no suitable car analogy?
Wal-Mart and Firestone both sell the same brand of tires and Wal-Mart is cheaper. However, if you read the fine print, the Wal-Mart version is not as puncture resistant nor rated for as many miles as the Firestone version. Some people say that's fine because everybody knows they get what they pay for. Others are saying that the Wal-Mart version falls below industry standard to the point that they are effectively scamming people by even offering it.
Northern Ireland would only stay in the EU if they vote to leave the UK and unify with Ireland.
Scotland is definitely leaving the EU along with UK. If they vote for independence, they could reapply to the EU. But this is far from automatic, since there are other EU members that are struggling to discourage their own secessionists.
Scotland could always do like Northern Ireland and join Ireland to form the United Republics of the British Isles or some such.
You can buy a 2 bedroom no garage townhouse in Fremont (in Seattle) for like $250k. Your mortgage will be half what rent would be. I pay way less for my mortgage than my friends who rent.
You.
Are.
Doing.
It.
Wrong.
Ya, but you're forgetting to mention the HOA, plus the risk that comes with all apartment neighbors, but you can't easily move away from them. Just went through all the searching and weighing options last year. I opted for the extra space and fixed costs. My commute went from a 20 minute walk to a 30 minute drive because I test drove for the various neighborhoods first. Still, the housing market last year was insane considering what it was two years ago when I started looking and I haven't heard of it getting any better. Looking on Redfin now, there's nothing in Freemont till you hit $325k and chances are you'll need a good escalation clause on that because not much has been going for asking cost in the last year and a half.
Elon Musk in the time-traveling Jack the Ripper from the future who fled backwards in time to us.
Now he needs the technology to build his own time machine and does this step by step by 'inventing' the necessary parts.
He already has one, but it's on Mars. A few trivial repairs, some power batteries, and interface method and his plans can come to completion.
I pay cash at the filling station, at the grocery store, at restaurants, and more. Why? Because it tends to be faster. While others are waiting for their card to clear through the computer I've got my change and I'm gone.
On what planet do you live?
Could be OR or the other state that still has gas station attendants do everything. Then with routine, you drive up say put in $20 worth and hand them a $20 bill. Likewise, grocery store is sort of a wash as the self checkers will take cash just fine and as fast as credit card, cashiers aren't that much slower either. At a restaurant, you just throw down money and walk without having to way for the waiter to come get your card, disappear forever with it, and then return.
Slashdot Mirror
Ah, so that's why my steel balloons didn't work.
Perhaps you should try lead.
^^^^^^This, time 1000.
Obtaining and maintaining thevacuum level that would be required for the hyperloop to work is no small task. Most people don't understand what's required to pull a decent vacuum and keep it at an acceptable level.
I've had some exposure to vacuums and creating them (although I specialized in the thermal gas sources) and I have been wondering about how they plan to do it although they seem to be well within mechanical pump range and not needing anything to exotic like diffusion pumps. It also does pose some interesting ideas. That you have a tube with a large car (piston) basically means you have made the entire apparatus into a large mechanical pump. Move the car at slower speeds down the tube with higher pressure ahead of it past various pump/vent stations to help clear it, and once in operation, just the action of using it might provide the pumping action needed to keep it at acceptable levels.
Slam an asteroid into Mars and the outgassing will make you an atmosphere and melt ice for water. Add a magnetosphere and a large mirror orbiting the sun to increase sunlight and it's livable.
Thing is that we'd essentially need about a thousand comets the size of Halley' Comet to give Mars a thin but breathable atmosphere. Where to find such comets and how to move things that big, is one hell of a problem.
No magnetosphere. Its terraformable. Your oxygen would float odd into space, and
Once you're bothering to create an atmosphere to terraform it even on a time table of centuries, the losses due to such are trivial. With the energy requirements to build such an atmosphere, creating some sort of magnetosphere or block from solar wind would also be doable.
No way. Planetary astrobiology is a well-established science and basically Mars is not capable of supporting life. It has no atmosphere and more critically has no carbon cycle and never will have one because it has no tectonic activity.
You are explaining why Mars would have to be terraformed, not why it couldn't be. However, the energies, materials, and times needed to do so are what one would expect on remodeling a planet. If we gather the needed material to give Mars an atmosphere from ridiculously nearby comets in the oort cloud, the energy needed to do that in a century is measured in days total energy output of the sun. Once you're working on those scales, restoring the atmosphere or even creating some sort of shield to prevent its loss, along with making the surface habitable are pretty much doable. Even mining nearby moons of Saturn for an atmosphere would still be on the same scale. A better way might be to just build factories on Mars and smelt iron for building things there and thus create industrial release of gases such as we are currently doing with burning fossil fuels. Still, you'd be looking at jump starting the project by building a city sized space station on Mars with support mines and then having to deal with the lack of H, N, and C we find so useful. Even then, I suspect the timetable would be based in centuries.
What IS alarming is that instead of helping US infrastructure protect itself from Russian malware,...
Well, since MS is supplying Russia with their OS also, any help they give helps Russia's infrastructure protect itself against US malware.
Is this fact checking going to be like Politifact, which has said that an article or tweet is "mostly false" while saying that the facts it contains are true?
I'd settle for just links to all related sources.
Personally, in my view Obama succumb to reality in foreign affairs.
My opinion also. Republican or Democrat, the realpolitik tends to take over. Look at Trump. Lots of things signed, no money to fund them, many dead in water. If it wasn't for the CRA and a dead Supreme Court Justice saved for him from the previous administration, pretty much nothing would have been done in his first 100 days even with both sides of Congress supposedly on his side.
Hillary was a Republican running as a democrat? Huh? Not even close.
Well, perhaps if social issues are your wedge issues, that's pretty true for Hillary, her husband, and even Obama. however, from the Democrat/left side, if looking at national security, privacy rights, economy, foreign policy, etc. They all appear as Republicans. The main complaint about Obama by those that voted for him was that it was pretty much a continuation of Bush on such policies. He may have gotten through some form of universal healthcare, but pretty much folded on FISA, business, Middle East, etc.
Why is this on Slashdot?
Because it gets lots of posts, even if many are just people complaining about it being on Slashdot. Same for everything Apple does, inequality of various people in the workforce, stuff on millennials, etc. If you want to see less of a topic, just don't even bother opening the discussion.
Thanks for posting some actual information!
I don't think the quality of education has deteriorated at all, rather many students are choosing to get totally worthless degrees because they feel entitled to pursue their passion.
I keep hearing this but does anybody actually have data to back it up? From what I can see with a quick look is that half of student debt is held by STEM and Business degrees. Only 8% is for arts, less than half the amount that Sciences have. Arts and All Other are less total debt than Science and Business despite slightly higher individual debts. Perhaps when you said "art historians, music therapists, and western philosophy majors" you meant to add in MBAs, chemists and engineers but forgot
I never understood the DC and Marvel purchases. Sure they paid billions and got to make shitty movies using the existing characters, but how much less would they have made with their own characters? I suspect that the use of well-known preexisting characters probably didn't add enough to make the purchase worthwhile.
I will disagree and go so far as to say that I'm surprised it didn't happen earlier. The comic book industry is basically a self supporting business that creates some where around 200+* movies worth of stories with associated storyboards and then is able to run them past test audiences to see which ones are actually good, and gain traction. Not only are they able to go with proven storylines, but also with built in audience of fans. This has been going on for quite some time now, surprisingly starting with the independent comics with movies like rocketeer, Mystery Men, Mask, Road to Perdition, American Splendor, Scott Pilgrim, Hellboy, and pretty much everything ever written and also owned by Frank Miller or Mark Millar. They are not just paying for the characters, but also a great deal for the proven stories.
*IIRC DC is running 52 titles at 12 issues a title per year where a movie typically translates into three issues.
Except that the people living there almost universally don't WANT to be called Americans. A major factor is likely that the notion of "The Americas" as a consistent unit has been out of vogue for a few centuries.
Key word being "almost". I have met with people that get upset when people from the United States refer to themselves as Americans in exclusion to the other countries in the Americas. Most have been from South America, particularly Columbia for some reason, and occasionally somebody from Mexico. Luckily, I have caught myself when speaking to such groups and even earned brownie points by correcting myself to them before they corrected me.
Bah...my ex-gf Firestone tires lasted one year, my Michelin tires lasted four years...Firestone is shit.
Sounds like you got them at Wal-Mart.
People still pay for cable TV, newspapers and magazines? They've never heard of teh intarweb?
Signed, young people.
Pretty much any cable internet connection comes with TV channels also whether you want it or not. Newspapers in my area are to the point of delivering them for free if you ask, or if they can convince you to accept having to pick them up and throw them away. Magazines typically still add some value. If a magazine is still around, it probably is providing better information than what you can find online because they have better revenue to pay for the creation of content and is based on providing information rather than internet outrage clicks.
that is about the most tortured analogy I've ever read. sheesh! You've got cliffs, and cows, and cash.. how about sticking to cars and libraries of congress?
“If I had asked people what they wanted, they would have said faster horses.”
-Henry Ford
Now, people are asking for more fuel efficient cars and more roads, and just perhaps what will take over will be something else like a car that doesn't use fuel (electric) or public mass transit that they don't know to ask for or don't think they want.
And from other examples in the discussion, it's as if they are not just offering the same brand but the same model of tire but the manufacture of the Wal-Mart tire uses inferior products which cannot even be determined before purchase.
Am I the only person confused as to why we're discussing mop buckets on slashdot in such detail?
I suppose there is no suitable car analogy?
Wal-Mart and Firestone both sell the same brand of tires and Wal-Mart is cheaper. However, if you read the fine print, the Wal-Mart version is not as puncture resistant nor rated for as many miles as the Firestone version. Some people say that's fine because everybody knows they get what they pay for. Others are saying that the Wal-Mart version falls below industry standard to the point that they are effectively scamming people by even offering it.
Northern Ireland would only stay in the EU if they vote to leave the UK and unify with Ireland.
Scotland is definitely leaving the EU along with UK. If they vote for independence, they could reapply to the EU. But this is far from automatic, since there are other EU members that are struggling to discourage their own secessionists.
Scotland could always do like Northern Ireland and join Ireland to form the United Republics of the British Isles or some such.
You can buy a 2 bedroom no garage townhouse in Fremont (in Seattle) for like $250k. Your mortgage will be half what rent would be. I pay way less for my mortgage than my friends who rent.
You. Are. Doing. It. Wrong.
Ya, but you're forgetting to mention the HOA, plus the risk that comes with all apartment neighbors, but you can't easily move away from them. Just went through all the searching and weighing options last year. I opted for the extra space and fixed costs. My commute went from a 20 minute walk to a 30 minute drive because I test drove for the various neighborhoods first. Still, the housing market last year was insane considering what it was two years ago when I started looking and I haven't heard of it getting any better. Looking on Redfin now, there's nothing in Freemont till you hit $325k and chances are you'll need a good escalation clause on that because not much has been going for asking cost in the last year and a half.
Besides, sex is messy.
If done properly.
Elon Musk in the time-traveling Jack the Ripper from the future who fled backwards in time to us. Now he needs the technology to build his own time machine and does this step by step by 'inventing' the necessary parts.
He already has one, but it's on Mars. A few trivial repairs, some power batteries, and interface method and his plans can come to completion.
If your desktop gets hacked, you don't worry about someone hacking your fingers or eyeballs, do you?
You don't seem to have met many Breitbart readers.
On what planet do you live?
Could be OR or the other state that still has gas station attendants do everything. Then with routine, you drive up say put in $20 worth and hand them a $20 bill. Likewise, grocery store is sort of a wash as the self checkers will take cash just fine and as fast as credit card, cashiers aren't that much slower either. At a restaurant, you just throw down money and walk without having to way for the waiter to come get your card, disappear forever with it, and then return.