I wouldn't count on it. Not on planes anyway. ~50W per seat at 5V is 10 amps per seat. thats a lot of current without inverters at each seat. That adds weight. My ogg player uses 500mW to charge, 100 times less than a laptop.
But 100W+ outlets (240V) are already on all the new trains.
Programing languages are tools. Use the best tool for the job. Java is not the right tool for every job any more than C is the best for any job.
Good coders i find do a good job in any language. I will go one further, good coders produce good code in languages that haven't used before. In fact i don't hire coders that don't have a few languages under there belt.
True story. After rewriting the whole app (c to c++ in this case) and it still was slow. We were called in as external contractors at this point. It only took a week to find the problem. It was bad SQL in a store procedure, giving a n^2 type performance when it should have been n (n>100k). Further inspection revealed that that was a few cases of this in the C++ and the sql. One section of code was a insertion sort when n was generally bigger than 10k!
Pay shit, get shit. In any language. Good java is fast. Crap C/C++ is slow. Has anyone here used VISTA? Is so frekin slow, and its not written in JAVA. Perhaps M$ was cutting pay and got developer's that reflected there pay grade.
You forgot LISP/Scheme, Haskel, Prolog, ARM asm, Matlab, R, C++, Ada, Ocaml, ML, Lua, python, php.......
If you learn a few properly learning others is pretty easy. I have used all the above more than once, and I bet the list is pretty long for a lot of people here. But perhaps less functional languages.
Personally I think C# gets a lot right that java got wrong. But i'm not switching anytime soon.
And to say something about the VMs are slow below. I just ported some C last weekend to java. Its 4x times faster. Good java on a top end VM like the IBM/Sun VM are as fast as native code and often faster. There are exceptions, but they are the exceptions. And C with asm blocks is *not* C.
Vista is slow as a dog. Thats not the same as C/C++ is slow. There are a lot of badly designed java out there that is slow, that is not the same as java is slow.
If we took every one of them seriously. We would get zero actual useful work done. Period.
The vast majority can be dismissed in 3 seconds or less because they violate a huge about of experimental data that we already have. Why should I take the time when they won't even take the time to read the current results in the field or to write up the idea/experiments properly?
In God we trust. As for the rest of you, show me the data!
Even the patent office had to require a working prototype for perpetual motion machines in the end.
We don't have the time. I have had 7 papers to review in the last 2 months. It takes a long time to do and you don't get paid. On top of that I am suppose to be getting out my own publications.
But peer review does get rid of a lot of rubbish. There are often papers are submitted that have not been finished or have some serious short coming especially wrt previous work. Its not a perfect system and it needs improving, but its not bad either.
The answer to any question in America. ASK A LAWYER.
Sure they are not "skilled in the arts of technology and science". Sure they will charge by the hour even if its only 10 minutes of there time. Sure they take *no responsibility* for the quality of there work or even its correctness.
What to know what algorithm to use? ASK A LAWYER. What codec is the best for my game? ASK A LAWYER? What OS license should i use? ASK A LAWYER. Can I put a link on my web page? ASK A LAWYER? What does this law mean? ASK A LAWYER!
Its a country by lawyers for lawyers. And the patent system is the worst example of that. Only lawyers win with patents. Not inventors. Not the little guy. Not even really the big guy.
Why do we need a "special" group of people that invent there own words so we, the citizen of a country cannot expect to be able to understand the laws of land as they stand *without frick loads of money, fees and time*?
We should expect to be able to spend most of our life without a lawyer at our side.
Yep One Lawyer Per Coder(OLPC). On Lawyer per citizen.
Thats why i like teaching at university... We can kick out anyone. You would think that they wouldn't bother coming (the disruptive ones) let alone pay some money to be there. But they do.
He3 in the moons crust is at 0.1 ppm and 300,000 km away, thats not bloody likely. It would be far cheaper to use a DD "He3 catalyzed" reactor. Or just stock pile T from n+Li->T reactions and wait for He3 to build up.
Also He3+He3 fusion has higher Bremsstrahlung losses than fusion at all temps (as does p-B11). There are thermodynamic reasons why you can't avoid that without pumping in even more energy, so they are generally accepted to be not even possible for break even. For low (read not zero) neutron yields D-He3 is about as good as it gets.
We can't even do D-T fusion yet, and its looking like they are going to be big reactors. So 2 or 3 times bigger for a small fraction (70th or less that D-T) of the output with D-He3 does not sound like economic proposal either.
there is also accelerator driven reactors. Because the pile is not critical is much safer. Both are serious R&D projects. But we should start them now, we have the reactors in 20 years time when we really will need them.
We talking about something so small that it will zip through a proton without trouble. Remember its gravity is about that of a large atom, completely negligible at this scale where the electrostatic and strong forces and even weak force are much more important.
But then i think you are just joking?
I just spend 80Euro on a "mp3" player because it supports ogg. More things are supporting now. Its about as dead as mp3. Sure it won't ever be as popular, but i won't go anywhere in a hurry. Also it keeps the mp3 patent lawyers at least a little honest. Competition is good right?
You are the one who suggested that anyone in disagreement with your view point lacks humility. Your second paragraph sums it up nicely. So why did you put that in your original post in the fist place. Why did you feel a need to bring *other* peoples character into the discussion, in particular people who you are expecting to disagree with you?
So why do you imply that I'm not humble? Because I know how to think critically? Because I question instead of taking knowledge on authority (establishment science, if nothing else, is an authority)? Because I am unashamed of both of these things?
Why do you imply that others especially those who disagree are not also humble, think critically and don't go blindly with authority?
I'm guessing you don't have a reason at all, you just don't like that something I said had an unsettling effect on you and you thought you'd take a poke at me because of it. You will never find joy that way.
That is called trolling. Not the top ten things humble people do.
But that fits. In one of your other posts you refer to Halton Arp as an example of a astronomer that is denied access and other things because of his unorthodox view. Now thats funny on so many levels. I mean half a dozen or so quasars line up with a galaxy and we need a new theory? Instead of considering the random chance that they line up lets suggest a completely new red shift cause..that doesn't affect the other galaxies.... So we get more data, and after we have 100-1000 of quasars that don't fit his model, well now perhaps this red shift mechanism does affect nearby galaxies, but just the ones that we need it too effect. With the data now available its more like the evolution deniers than a scientist.
Yet he still has his job. Still gets the odd paper out, and still "publishes" his poorly reasoned stuff on his web site. He even won awards and is famous for his catalog "The Atlas of Peculiar Galaxies" and we still use arp many of them. He is well known and far from a reject. Its just the data does not agree with his models.
In God we trust. As for the rest of you, show me the data!
Nice rant. Got anything to back it up? I mean other than they are all wrong.
Your comment on frozen lines in plasma not withstanding. Its an approximation, that works well for a lot of cases. And anyone in the field will tell you that. Newer models allow this to be relaxed more and more. But really it doesn't change things that much with typical astronomical plasmas.
And the different redshift thing? Could you be more specific? There are really no theories that predict the comsmic microwave background and isotope ratios other than the big bang. Which also leads to the standard red shift interpretation. There really nothing else we have come up with that works. We have just have so much red shift data now. There really are no alternative that explain this without some serious arm waving.
and are humble enough to admit that maybe you don't know
That was in 1944-45. The tolerance and timings are not hard by todays standards at all. And you got the design all wrong:wiki You use lenses to make a imploding shock wave. The C4 does not need containing.
Also the main reason gun weapons are not used is that they sux. They have quite low yield for the amount of material you need.
Dam I did the calculations as part of my graduate physics course. The needed accuracy is something that is reasonably routine these days.
The are some harder bits, like exact yields etc and some data. But if you have bomb grade U or Pu then that can be done reasonably easily too. However there are always unknowns without testing. And generally testing will be detected.
The facts are that if some one with the cash (aka government) wants a nuke these days, you won't stop them any more than DRM will stop piracy. And as technology gets better it will only get easier.
Slashdot Mirror
Well you don't get much repeat offenses now do you. ;)
you don't need a screw driver. Just look inside the usb hole.
I have seen them. It wouldn't be hard to make. Also the power only usb outlets i have seen only have 2 wires in the plug too which you can check for.
I wouldn't count on it. Not on planes anyway. ~50W per seat at 5V is 10 amps per seat. thats a lot of current without inverters at each seat. That adds weight. My ogg player uses 500mW to charge, 100 times less than a laptop.
But 100W+ outlets (240V) are already on all the new trains.
Yeah, because you can compile standard C and standard C++ on just about EVERY platform.
But the library's that talk to the hardware on different OS's are not the same. And thats the problem. However its a lot easier these days...
Programing languages are tools. Use the best tool for the job. Java is not the right tool for every job any more than C is the best for any job.
Good coders i find do a good job in any language. I will go one further, good coders produce good code in languages that haven't used before. In fact i don't hire coders that don't have a few languages under there belt.
True story. After rewriting the whole app (c to c++ in this case) and it still was slow. We were called in as external contractors at this point. It only took a week to find the problem. It was bad SQL in a store procedure, giving a n^2 type performance when it should have been n (n>100k). Further inspection revealed that that was a few cases of this in the C++ and the sql. One section of code was a insertion sort when n was generally bigger than 10k!
There is no language that can fix this.
I would rather pay $100 more for a sleek native program vs a Java one.
Like M$ word, or perhaps the highly responsive XL. Or the ultra sleek and responsive vista OS with 1/2 the memory footprint and 2x the performance....
Bloat, sleekness, performance is much much less a function of language than *how* that language was used.
What a pile of bunk.
Pay shit, get shit. In any language. Good java is fast. Crap C/C++ is slow. Has anyone here used VISTA? Is so frekin slow, and its not written in JAVA. Perhaps M$ was cutting pay and got developer's that reflected there pay grade.
You forgot LISP/Scheme, Haskel, Prolog, ARM asm, Matlab, R, C++, Ada, Ocaml, ML, Lua, python, php .......
If you learn a few properly learning others is pretty easy. I have used all the above more than once, and I bet the list is pretty long for a lot of people here. But perhaps less functional languages.
Personally I think C# gets a lot right that java got wrong. But i'm not switching anytime soon.
And to say something about the VMs are slow below. I just ported some C last weekend to java. Its 4x times faster. Good java on a top end VM like the IBM/Sun VM are as fast as native code and often faster. There are exceptions, but they are the exceptions. And C with asm blocks is *not* C.
Vista is slow as a dog. Thats not the same as C/C++ is slow. There are a lot of badly designed java out there that is slow, that is not the same as java is slow.
The original has a stupid ending. They are all smart and cleaver right up until they get away, then become a bunch of stupid drunk Englishman...
If we took every one of them seriously. We would get zero actual useful work done. Period.
The vast majority can be dismissed in 3 seconds or less because they violate a huge about of experimental data that we already have. Why should I take the time when they won't even take the time to read the current results in the field or to write up the idea/experiments properly?
In God we trust. As for the rest of you, show me the data!
Even the patent office had to require a working prototype for perpetual motion machines in the end.
We don't have the time. I have had 7 papers to review in the last 2 months. It takes a long time to do and you don't get paid. On top of that I am suppose to be getting out my own publications.
But peer review does get rid of a lot of rubbish. There are often papers are submitted that have not been finished or have some serious short coming especially wrt previous work. Its not a perfect system and it needs improving, but its not bad either.
The answer to any question in America. ASK A LAWYER.
Sure they are not "skilled in the arts of technology and science". Sure they will charge by the hour even if its only 10 minutes of there time. Sure they take *no responsibility* for the quality of there work or even its correctness.
What to know what algorithm to use? ASK A LAWYER. What codec is the best for my game? ASK A LAWYER? What OS license should i use? ASK A LAWYER. Can I put a link on my web page? ASK A LAWYER? What does this law mean? ASK A LAWYER!
Its a country by lawyers for lawyers. And the patent system is the worst example of that. Only lawyers win with patents. Not inventors. Not the little guy. Not even really the big guy.
Why do we need a "special" group of people that invent there own words so we, the citizen of a country cannot expect to be able to understand the laws of land as they stand *without frick loads of money, fees and time*?
We should expect to be able to spend most of our life without a lawyer at our side.
Yep One Lawyer Per Coder(OLPC). On Lawyer per citizen.
Thats why i like teaching at university... We can kick out anyone. You would think that they wouldn't bother coming (the disruptive ones) let alone pay some money to be there. But they do.
He3 in the moons crust is at 0.1 ppm and 300,000 km away, thats not bloody likely. It would be far cheaper to use a DD "He3 catalyzed" reactor. Or just stock pile T from n+Li->T reactions and wait for He3 to build up.
Also He3+He3 fusion has higher Bremsstrahlung losses than fusion at all temps (as does p-B11). There are thermodynamic reasons why you can't avoid that without pumping in even more energy, so they are generally accepted to be not even possible for break even. For low (read not zero) neutron yields D-He3 is about as good as it gets.
We can't even do D-T fusion yet, and its looking like they are going to be big reactors. So 2 or 3 times bigger for a small fraction (70th or less that D-T) of the output with D-He3 does not sound like economic proposal either.
Good for sci fi books however.
there is also accelerator driven reactors. Because the pile is not critical is much safer. Both are serious R&D projects. But we should start them now, we have the reactors in 20 years time when we really will need them.
We talking about something so small that it will zip through a proton without trouble. Remember its gravity is about that of a large atom, completely negligible at this scale where the electrostatic and strong forces and even weak force are much more important. But then i think you are just joking?
I just spend 80Euro on a "mp3" player because it supports ogg. More things are supporting now. Its about as dead as mp3. Sure it won't ever be as popular, but i won't go anywhere in a hurry. Also it keeps the mp3 patent lawyers at least a little honest. Competition is good right?
Its my experience that if a government does nothing they will more often than not do *less* harm.
So why do you imply that I'm not humble? Because I know how to think critically? Because I question instead of taking knowledge on authority (establishment science, if nothing else, is an authority)? Because I am unashamed of both of these things?
Why do you imply that others especially those who disagree are not also humble, think critically and don't go blindly with authority?
I'm guessing you don't have a reason at all, you just don't like that something I said had an unsettling effect on you and you thought you'd take a poke at me because of it. You will never find joy that way.
That is called trolling. Not the top ten things humble people do.
But that fits. In one of your other posts you refer to Halton Arp as an example of a astronomer that is denied access and other things because of his unorthodox view. Now thats funny on so many levels. I mean half a dozen or so quasars line up with a galaxy and we need a new theory? Instead of considering the random chance that they line up lets suggest a completely new red shift cause..that doesn't affect the other galaxies.... So we get more data, and after we have 100-1000 of quasars that don't fit his model, well now perhaps this red shift mechanism does affect nearby galaxies, but just the ones that we need it too effect. With the data now available its more like the evolution deniers than a scientist.
Yet he still has his job. Still gets the odd paper out, and still "publishes" his poorly reasoned stuff on his web site. He even won awards and is famous for his catalog "The Atlas of Peculiar Galaxies" and we still use arp many of them. He is well known and far from a reject. Its just the data does not agree with his models.
In God we trust. As for the rest of you, show me the data!
Your comment on frozen lines in plasma not withstanding. Its an approximation, that works well for a lot of cases. And anyone in the field will tell you that. Newer models allow this to be relaxed more and more. But really it doesn't change things that much with typical astronomical plasmas.
And the different redshift thing? Could you be more specific? There are really no theories that predict the comsmic microwave background and isotope ratios other than the big bang. Which also leads to the standard red shift interpretation. There really nothing else we have come up with that works. We have just have so much red shift data now. There really are no alternative that explain this without some serious arm waving.
and are humble enough to admit that maybe you don't know
I'm sure you are humble enough for both of us.
That was in 1944-45. The tolerance and timings are not hard by todays standards at all. And you got the design all wrong:wiki You use lenses to make a imploding shock wave. The C4 does not need containing.
Also the main reason gun weapons are not used is that they sux. They have quite low yield for the amount of material you need.
Dam I did the calculations as part of my graduate physics course. The needed accuracy is something that is reasonably routine these days. The are some harder bits, like exact yields etc and some data. But if you have bomb grade U or Pu then that can be done reasonably easily too. However there are always unknowns without testing. And generally testing will be detected.
The facts are that if some one with the cash (aka government) wants a nuke these days, you won't stop them any more than DRM will stop piracy. And as technology gets better it will only get easier.
I was with my friend when she brought her a bra. Sorry to disappoint.
My point Exactly! Thanks.