Don't liquefy it then. Do I have to do all the thinking round here?
Good idea. Let's put all the fuel in a big cigar shaped tank that you carry on top of the plane. By virtue of being so light, it also helps to create extra lift.
Actually, compressed hydrogen can be made to have higher volumetric density than liquid hydrogen. I know, mind-blowing.
Energy density for liquid hydrogen needs to be measure in MJ/L for you to really see why it sucks to use. LH2 is 5.6MJ/L and a LiPo is 2.28 MJ/L.
While that is the metric you would use to conform to the Slashodt groupthink, you might want to consider the specific energy, i.e. energy per mass (MJ/kg). There, hydrogen beats Li+ batteries by two orders of magnitude. I am not denying that volumetric energy density is important, but gravimetric density is even more important in aviation technology.
I noticed there is a strong groupthink on Slashdot that is against hydrogen fuel cell technology. And one of the (blatantly incorrect) statements is that hydrogen is impossible to store. And yet, there are multiple car manufacturers that make viable hydrogen-powered cars, and the hydrogen storage is not the problem at all. The problem is the current common methods of producing hydrogen, and the (non) availability of gas stations.
I swear that the collective Slashdot IQ falls through the floor when fuel cells, especially hydrogen fuel cells, are the topic. The dumbest, least researched statements, get the most upvotes. It's embarrassing to watch.
First off, this government's popularity has gone totally down the drain because of their continued efforts to enrich themselves and their friends at the expense of the nation (selling off bank assets in no-bid auctions at a tiny fraction of their value to family members of government officials, fighting to get Iceland expanded fishing quotas and then just handing them off to the fishing barons, etc), their continuous attempts to stifle press freedom, and countless other things. The prime minister's, before this incident, was in polls the choice of only 12% of the electorate. This is just the latest outrage in a long string of them.
Now, for the actual issue. Simmi and his wealthy wife, back before the financial crash, set up an offshore shell company to secretly buy shares in the three large Icelandic banks that turned out, one year later, to go catastrophically belly-up. Now the two of them (50-50 owners in the company) were creditors, scrambling with the other creditors over the right to the remains of the banks. They were what we refer to as "vultures". But this was in secret.
Then Simmi ran for office as the head of Framsóknarflokkurinn (Progress Party), a right-populist party (some might call it the "Idiot Party", as they run every year on some variant of "We're going to give you TONS OF MONEY, and nobody's going to have to pay for it, not EVERS!"). His big thing was that he was part of a group fighting against the wicked vultures trying to pick Iceland dry. When in actuality, of course, he was a vulture.
We haven't gotten to the problem part yet.
Because then he was elected. And the regulations (beyond general conflict of interest) are that if you own more than a 25% stake in an investment company, you have to disclose it. He was prime minister for months before he did anything. And that "doing something" was not to disclose his secret holdings, but to sell them to his wife for $1 (which still didn't remove the conflict of interest).
Still not to the problem part.
Because as the head of the government, he then pursued policies to get 2B euro of money that otherwise would have gone to the state to instead go to the creditors. "The creditors" including his wife and other secret accounts owned by other members of the governing coalition.
Basically, he robbed the country to make up for his investment losses.
Furthermore, people, stop the whoop-di-doo about his resignation. Because he's just stepping back to running the party behind the scenes while one of his ministers is taking over. The governing coalition isn't leaving. Actually Simmi reportedly tried to break the coalition, but the president wouldn't let him. Now he says that the president is lying about that, that he never planned to break it.
In other words, psychopaths attain power, and manage to keep it, even in Iceland. And that's terribly sad.
Bankers broke US' economy throwing into misery hundreds of thousands, but he thought he'll make justice by putting in jail people who actually work for their money, people who actually provide a useful service to the community?
I am a socialist and a European. I was very surprised to hear that Trump was/is against the TPP. When I heard that, I started following him a bit. I also started paying attention to the campaign. In the end, while I have always been a lefty, I realized I can't stand Hillary, whereas I find some points in Trump which I agree with. Hillary looks like someone who'd sell her own mother for money and power, and would throw anyone under the bus.
Strictly from the POV of TPP, if either Trump or Bernie become presidents, the deal will be dead in the water.
Forget for a moment that Trump himself is a profoundly ugly person. He's orange, with a bad combover and a neck that looks like it's filled with 2 gallons of vanilla milkshake. As my sainted grandma used to say, "You can see his soul in his face".
Congratulations, you made history: THIS comment is absolutely the dumbest thing I've ever read on Slashdot, and I would hazard to say that it is also the dumbest thing ever to appear on Slashdot in a comment section. With this you have put yourself and your grandma at the bottom of the barrel of humankind. Gag reflex and laughter are competing for my facial muscles.
A funny thing happened on the way to creating an IBM supercomputer capable of understanding human language: A research scientist accidentally filled its vocabulary with foul language.
And the computer, known as Watson, didn't know the difference between salty phrases and polite ones. It started peppering its conversations with words like "bullshit."...
I am a research scientist of moderate seniority, and I use that language all the time. And there's nothing wrong with me.
Yet I have been through 30 android tablets.... most have screens made from potatochips that break easily (I have 3 nexus 7's with broken screens in my hardware hacking bin) or the micro USB plug get's buggered up. We really need an open source lightning connector replacement as that part is pretty cool.
This has BS written all over it. We all use Android devices in our family (which includes a 6 year old boy) and guess how many micro USB plugs "get's buggered"? Not a single one, ever. As for the Nexus 7, I have the original Nexus 7 which has seen some very rough treatment at times. It still works, with good battery life and the screen is fine, unscratched. I am sure my experience with the Nexus 7 may be considered a fluke all by its own, but the device has been well-liked by its users, and you being able to break 3 of them, and going through 30 Android devices definitely points to an interesting pattern. I am not usually one to say that the problem is with the user, but in your case yes, absolutely.
Oh totally. But we can't stop there, because there should be no half measures. We need to ban Christianity because look at what happened in Colorado with that Planned Parenthood. Terrorism. Also, we need to ban Atheism because the "dark knight" guy in Aurora was an Atheist.....I bet that's where he got the ideas. See, if only the non-violent Christians and non-violent Atheists had done something to prevent this type of terrorism, it'd be OK. But, they don't stop it, so we need to ban their philosophies as well. So glad someone had the courage to say it./bitter sarcasm
Seriously, how in the fuck is this moderated as "Insightful". You sir, are an idiot.
Technically speaking, the GP is right: nowadays the only countries that are terrorism-free are the ones without a significant pious Sunni Muslim population. Notice how there is no terrorism in Japan, South Korea or even Kazakhstan - I put Kazakhstan there on purpose, because it has a significant Muslim population, but they are by and large secular. China has no terrorism problem except in Xinjiang which has a significant Sunni Muslims population.
Yeah, it's always "only some Christians but all Muslims", isn't it?
It absolutely is NOT all Muslims - terrorism and suicide bombers are something very much foreign to Shia Muslims. It is almost exclusively Sunni Muslims who engage in terrorism.
We should stop labeling all Muslims as potential terrorists and be a bit more discriminating.
Telegram is an open-source version of Whatsapp - it imitates it very well, and it works like a charm. Telegram for Blackberry is still maintained. And of course, being open-source, in theory one can do the maintenance him/herself if they find a bug they want squashed.
Having more manufacturers release Linux drivers, even closed-source, is great, especially considering the other trend of Microsoft fucking their customers with Windows updates.
I am only a tiny little bit perplexed - it is, after all, a bald-faced lie, but this new, more malevolent Microsoft, is fully capable of such unethical behavior.
It hurts me to see research papers from the beginning of last century still behind paywalls - I am looking at you, Nature Publishing Group (honestly, all are equally guilty). I was a pioneer in advocating publication in open access journals at the place I got my PhD from, and I actually god my supervisor to join the editorial board of one of the better OA journals.
Chip Scale Atomic Clock - OK, at $1500 it's not super-cheap, but it's your own, it will work whether there is Internet or not. Heck, it will work whether there's civilization or not! Imagine having accurate time during the zombie apocalypse.
You will not get a lot of argument from me that the west has a large degree of culpability for the current probelms in Syria and Iraq but I have never understood the assertion that our primary motivation was oil. If all we cared about was oil we would have continued to support the despots that provided stability.
If you look at the big picture, you might realize that yes, the West does support strong dictators that provide lots of oil - specifically, Saudi Arabia (and the other countries of the Arab peninsula to a slightly lesser extent). Saudi Arabia is a Sunni country that is in every way like ISIS, all the way to rampant de facto slavery of whoever is not a Sunni Muslim, beheading of apostates and gays, no-go areas for non-Muslims, child brides. Saudi Arabia wouldn't lift a finger against ISIS, but went full-banshee against insurgents in Yemen - because they are Shia, and it is mostly the civilians that are dying during Saudi air raids. All this the West just sees and ignores. Let's not forget that Saudi Arabia is chairing the Human Rights committe at the UN. So, from a further perspective, it does seem that Saudi Arabia is receiving support. Why? I see no other answer but because of the immense power they hold because of the crude oil production capacity and reserves the Saudis hold.
jesus, some folks just won't let go... As if MS has not changed in 20 years.
That's right junior, MS indeed has not changed in 20 years. If anything, they've become more obnoxious. In the past at least they let you use Windows whichever way you liked, giving you control of your computer. Now they are hell-bent on wrestling that control out of the users' hands and into their own. For another example, the dirty tricks with incompatible file versions produced by MS Office still continues. I sent a document prepared with Word 2013 to our PI (principal investigator) who uses Office 365, and apart from formatting issues, he could not see three of the images in the manuscript. I have also noticed incompatibility problems with powerpoint files.
It is not surprising if Microsoft wants to turdify Eclipse through "Embrace, Extend, Extinguish." Microsoft under Nadella has been every bit as evil and corrupting as in the past under Gates and Ballmer.
Slashdot Mirror
Don't liquefy it then. Do I have to do all the thinking round here?
Good idea. Let's put all the fuel in a big cigar shaped tank that you carry on top of the plane. By virtue of being so light, it also helps to create extra lift.
Actually, compressed hydrogen can be made to have higher volumetric density than liquid hydrogen. I know, mind-blowing.
Energy density for liquid hydrogen needs to be measure in MJ/L for you to really see why it sucks to use. LH2 is 5.6MJ/L and a LiPo is 2.28 MJ/L.
While that is the metric you would use to conform to the Slashodt groupthink, you might want to consider the specific energy, i.e. energy per mass (MJ/kg). There, hydrogen beats Li+ batteries by two orders of magnitude.
I am not denying that volumetric energy density is important, but gravimetric density is even more important in aviation technology.
Hydrogen eats steel and aluminum.
I noticed there is a strong groupthink on Slashdot that is against hydrogen fuel cell technology. And one of the (blatantly incorrect) statements is that hydrogen is impossible to store. And yet, there are multiple car manufacturers that make viable hydrogen-powered cars, and the hydrogen storage is not the problem at all. The problem is the current common methods of producing hydrogen, and the (non) availability of gas stations.
I swear that the collective Slashdot IQ falls through the floor when fuel cells, especially hydrogen fuel cells, are the topic. The dumbest, least researched statements, get the most upvotes. It's embarrassing to watch.
Your comment deserves to be modded up, way up. You remembered the EEE PC days! It was kind of glorious and there was a strange excitement in the air.
That is not in the slightest the issue.
First off, this government's popularity has gone totally down the drain because of their continued efforts to enrich themselves and their friends at the expense of the nation (selling off bank assets in no-bid auctions at a tiny fraction of their value to family members of government officials, fighting to get Iceland expanded fishing quotas and then just handing them off to the fishing barons, etc), their continuous attempts to stifle press freedom, and countless other things. The prime minister's, before this incident, was in polls the choice of only 12% of the electorate. This is just the latest outrage in a long string of them.
Now, for the actual issue. Simmi and his wealthy wife, back before the financial crash, set up an offshore shell company to secretly buy shares in the three large Icelandic banks that turned out, one year later, to go catastrophically belly-up. Now the two of them (50-50 owners in the company) were creditors, scrambling with the other creditors over the right to the remains of the banks. They were what we refer to as "vultures". But this was in secret.
Then Simmi ran for office as the head of Framsóknarflokkurinn (Progress Party), a right-populist party (some might call it the "Idiot Party", as they run every year on some variant of "We're going to give you TONS OF MONEY, and nobody's going to have to pay for it, not EVERS!"). His big thing was that he was part of a group fighting against the wicked vultures trying to pick Iceland dry. When in actuality, of course, he was a vulture.
We haven't gotten to the problem part yet.
Because then he was elected. And the regulations (beyond general conflict of interest) are that if you own more than a 25% stake in an investment company, you have to disclose it. He was prime minister for months before he did anything. And that "doing something" was not to disclose his secret holdings, but to sell them to his wife for $1 (which still didn't remove the conflict of interest).
Still not to the problem part.
Because as the head of the government, he then pursued policies to get 2B euro of money that otherwise would have gone to the state to instead go to the creditors. "The creditors" including his wife and other secret accounts owned by other members of the governing coalition.
Basically, he robbed the country to make up for his investment losses.
Furthermore, people, stop the whoop-di-doo about his resignation. Because he's just stepping back to running the party behind the scenes while one of his ministers is taking over. The governing coalition isn't leaving. Actually Simmi reportedly tried to break the coalition, but the president wouldn't let him. Now he says that the president is lying about that, that he never planned to break it.
In other words, psychopaths attain power, and manage to keep it, even in Iceland. And that's terribly sad.
Bankers broke US' economy throwing into misery hundreds of thousands, but he thought he'll make justice by putting in jail people who actually work for their money, people who actually provide a useful service to the community?
Americans' moral compass is just whack.
I have to say "My god, it's full of assholes!"
Today was my first bike commute to work of the season, and I exclaimed the same thing.
I am a socialist and a European. I was very surprised to hear that Trump was/is against the TPP. When I heard that, I started following him a bit. I also started paying attention to the campaign. In the end, while I have always been a lefty, I realized I can't stand Hillary, whereas I find some points in Trump which I agree with. Hillary looks like someone who'd sell her own mother for money and power, and would throw anyone under the bus.
Strictly from the POV of TPP, if either Trump or Bernie become presidents, the deal will be dead in the water.
Forget for a moment that Trump himself is a profoundly ugly person. He's orange, with a bad combover and a neck that looks like it's filled with 2 gallons of vanilla milkshake. As my sainted grandma used to say, "You can see his soul in his face".
Congratulations, you made history: THIS comment is absolutely the dumbest thing I've ever read on Slashdot, and I would hazard to say that it is also the dumbest thing ever to appear on Slashdot in a comment section.
With this you have put yourself and your grandma at the bottom of the barrel of humankind. Gag reflex and laughter are competing for my facial muscles.
IBM's Watson had a similar problem when it was introduced to the Urban Dictionary.
http://www.businessinsider.com...
A funny thing happened on the way to creating an IBM supercomputer capable of understanding human language: A research scientist accidentally filled its vocabulary with foul language.
And the computer, known as Watson, didn't know the difference between salty phrases and polite ones. It started peppering its conversations with words like "bullshit."...
I am a research scientist of moderate seniority, and I use that language all the time. And there's nothing wrong with me.
Yet I have been through 30 android tablets.... most have screens made from potatochips that break easily (I have 3 nexus 7's with broken screens in my hardware hacking bin) or the micro USB plug get's buggered up. We really need an open source lightning connector replacement as that part is pretty cool.
This has BS written all over it. We all use Android devices in our family (which includes a 6 year old boy) and guess how many micro USB plugs "get's buggered"? Not a single one, ever. As for the Nexus 7, I have the original Nexus 7 which has seen some very rough treatment at times. It still works, with good battery life and the screen is fine, unscratched. I am sure my experience with the Nexus 7 may be considered a fluke all by its own, but the device has been well-liked by its users, and you being able to break 3 of them, and going through 30 Android devices definitely points to an interesting pattern. I am not usually one to say that the problem is with the user, but in your case yes, absolutely.
Stopping terrorism means stopping Islam.
Oh totally. But we can't stop there, because there should be no half measures. We need to ban Christianity because look at what happened in Colorado with that Planned Parenthood. Terrorism. Also, we need to ban Atheism because the "dark knight" guy in Aurora was an Atheist.....I bet that's where he got the ideas. See, if only the non-violent Christians and non-violent Atheists had done something to prevent this type of terrorism, it'd be OK. But, they don't stop it, so we need to ban their philosophies as well. So glad someone had the courage to say it. /bitter sarcasm
Seriously, how in the fuck is this moderated as "Insightful". You sir, are an idiot.
Technically speaking, the GP is right: nowadays the only countries that are terrorism-free are the ones without a significant pious Sunni Muslim population. Notice how there is no terrorism in Japan, South Korea or even Kazakhstan - I put Kazakhstan there on purpose, because it has a significant Muslim population, but they are by and large secular. China has no terrorism problem except in Xinjiang which has a significant Sunni Muslims population.
Only certain 'Christian' factions in the USA.
Yeah, it's always "only some Christians but all Muslims", isn't it?
It absolutely is NOT all Muslims - terrorism and suicide bombers are something very much foreign to Shia Muslims. It is almost exclusively Sunni Muslims who engage in terrorism.
We should stop labeling all Muslims as potential terrorists and be a bit more discriminating.
As long as the US does business with White ISIS (Saudi Arabia), your point is practically moot.
Telegram is an open-source version of Whatsapp - it imitates it very well, and it works like a charm. Telegram for Blackberry is still maintained. And of course, being open-source, in theory one can do the maintenance him/herself if they find a bug they want squashed.
Having more manufacturers release Linux drivers, even closed-source, is great, especially considering the other trend of Microsoft fucking their customers with Windows updates.
I am only a tiny little bit perplexed - it is, after all, a bald-faced lie, but this new, more malevolent Microsoft, is fully capable of such unethical behavior.
Jumping from one executive position into the other, no matter what the quality of their work.
It hurts me to see research papers from the beginning of last century still behind paywalls - I am looking at you, Nature Publishing Group (honestly, all are equally guilty). I was a pioneer in advocating publication in open access journals at the place I got my PhD from, and I actually god my supervisor to join the editorial board of one of the better OA journals.
Chip Scale Atomic Clock - OK, at $1500 it's not super-cheap, but it's your own, it will work whether there is Internet or not. Heck, it will work whether there's civilization or not! Imagine having accurate time during the zombie apocalypse.
You will not get a lot of argument from me that the west has a large degree of culpability for the current probelms in Syria and Iraq but I have never understood the assertion that our primary motivation was oil. If all we cared about was oil we would have continued to support the despots that provided stability.
If you look at the big picture, you might realize that yes, the West does support strong dictators that provide lots of oil - specifically, Saudi Arabia (and the other countries of the Arab peninsula to a slightly lesser extent). Saudi Arabia is a Sunni country that is in every way like ISIS, all the way to rampant de facto slavery of whoever is not a Sunni Muslim, beheading of apostates and gays, no-go areas for non-Muslims, child brides. Saudi Arabia wouldn't lift a finger against ISIS, but went full-banshee against insurgents in Yemen - because they are Shia, and it is mostly the civilians that are dying during Saudi air raids. All this the West just sees and ignores. Let's not forget that Saudi Arabia is chairing the Human Rights committe at the UN. So, from a further perspective, it does seem that Saudi Arabia is receiving support. Why? I see no other answer but because of the immense power they hold because of the crude oil production capacity and reserves the Saudis hold.
It is also pretty clear that this whole thread has been infested by MS paid sockpuppets.
The computer is what is usually referred to as a "bad winner".
jesus, some folks just won't let go... As if MS has not changed in 20 years.
That's right junior, MS indeed has not changed in 20 years. If anything, they've become more obnoxious. In the past at least they let you use Windows whichever way you liked, giving you control of your computer. Now they are hell-bent on wrestling that control out of the users' hands and into their own.
For another example, the dirty tricks with incompatible file versions produced by MS Office still continues. I sent a document prepared with Word 2013 to our PI (principal investigator) who uses Office 365, and apart from formatting issues, he could not see three of the images in the manuscript. I have also noticed incompatibility problems with powerpoint files.
It is not surprising if Microsoft wants to turdify Eclipse through "Embrace, Extend, Extinguish."
Microsoft under Nadella has been every bit as evil and corrupting as in the past under Gates and Ballmer.