I'm sorry he lost his leg, but there is no why this is 'fair' by any sense of the word.
It's Deus Ex: Human Revolution coming to real life. Next thing you know it'll be someone with some other disability going ahead. Perhaps a footballer with a prosthetic that helps him catch and hold the ball. The tipping point (as it is in the game) is when you can get near natural control of a prosthetic by connecting it directly to a persons nerves or brain.
The nice thing is all the waste powder can be reused without having to melt it down, so there's almost no waste.
How big of an advantage is that, though? Melting down metal to reuse it is really easy, much easier than with other materials like glass or plastics. Especially in the case where you control the environment and can be assured of its purity, vs. collecting scrap metal or something (but even collecting scrap metal is profitable).
Well, it's Titanium, so it's probably quite a pain. Titanium has an ignition temperature that's lower than its melting point so you have to work with it in an inert atmosphere, and apparently it's still a pain even then. Given that I'll bet titanium scrap isn't worth a quarter of its value when in block form.
The article says "each surgery cost just 20% of what a traditional jaw implant surgery would have cost." It doesn't say how much of that was due to not having to recycle 80% of the material and how much of it was because the jaw was made to order. It certainly implied though that a decent bit of the savings was due to laser sinstering.
You're also forgetting the cost of the multi axis milling machines that this process replaces. If they're even close in price and you're using 80% less material then why wouldn't any manufacturing shop go for it?
When they say 3D printed do they mean a metal mill, or can we 3D print with any random material now? And if so, why not use the far more tried tested, and better alternative milling?
Nope, it's "laser sintering." They take metal powder and fuse it together one layer at a time. You put a layer of metal powder down, the laser fuses it together, then you put another layer of powder over it. Repeat until done.
The nice thing is all the waste powder can be reused without having to melt it down, so there's almost no waste. The other thing is you can print shapes that are really hard to mill. No more ridiculously complex 6 axes milling machines that the US treats like munitions. Just Google ITER sometime to see the craziness.
If Google kills unpopular services, why is Google+ not dead yet?
Because Google tends to spam you to set up an account if you use any of their other services. If you define active as making more than 3 posts a month then over 99% of Google+ account's aren't active.*
* I made those numbers up, but they're probably reasonably close to true.
Take a look at Xprivacy. If you have a rooted android phone you can do that and more today. I think Cyanogenmod also has some sort of permission control built in now. Even Iphone's have basic permissions. The only thing that doesn't is stock Android and Windows.
Google knows there's a market for it, but they're worried about ad revenue or apps breaking because it would be "too much of a burden" on developers to make sure there apps behave when permissions are denied.
Just once, I'd love to see some side by side comparisons of the end-to-end RF ability of these new phones. While voice calls, the kids tell me, are a thing of the past we are getting more and more dependent on data connections. And how you get data is via RF link. And yet I haven't even seen link quality mentioned in a single review for at least two generations of smart phones.
The truth is that there are few radio manufacturers. If you have Verizon in the US then it's almost certainly going to be a Qualcom radio. The exact same Qualcom radio that are in all the other phones of the same generation. Kind of hard to differentiate yourself if the carrier forces you to use the same thing everything else is using.
That brings up another point. Radios are carrier and region dependent. Verizon and Sprint use CDMA, while just about everyone else in the world (except Japan) use GSM. Worse, the US and Europe use different frequencies. I think most newer radios can handle them all, but that certainly wasn't true in the past.
I think it's even mentioned at one point of the Supreme Court's decision. They'll have to do a bit more than that, and only offer pre-recorded programming, but It'll probably be done and, if they have the money to survive the lawsuits, it'll end up before the Supreme Court again. http://nypost.com/2014/06/26/hope-for-aereo-despite-supreme-court-defeat/
Did you actually have the console, or just the HogPC software?
Because while it might be great for live shows, I've truly come to despise the hog when it comes to programming anything more complicated than a single scene. Seriously, I think I liked the lighting console that I had to use floppies and a VGA cable with better. At least that one was clear on exactly which scene I was working on, so I know exactly what happens when I press the next button. (that's without getting into overrides:/)
Seriously, the console/software is pretty good if you want colors on the fly with someone basically DJing the lights, but It would be a pita to run something like a play.
But, But you can just put Linux on there. Then you can use Java for all those fancy things you mentioned. That will solve all your problems. https://xkcd.com/801/ Seriously, I'm pretty sure I've seen this on an old Vonage box I was playing around with.
For many of the smaller microcontrollers we're lucky to have a full libc. It's always a wonderful day when I have to choose between rewriting an algorithm to use integers or taking a chance with new hardware with a built in floating point unit when the ship date is fast approaching.
Honestly I wonder how many devices it will affect. I know anything which isn't patched and relies on security certificates is hosed, but what about the network printer that nobody cares about and is running completely unsecured?
Will these puppies also have some form of GPS in them? Not only will they know what filth you are posting but they'll know where you posted it from.
With triangulation, and Doppler shift calculations it doesn't matter. Though it's much harder to do those things with everyone vs just have them send their position data. Not that ISPs don't already know everything about you.
ChromeOS, in contrast, comes with more stringent system requirements that would cost HP a bit more.
In other words, this thing is going to be really slow if you try to use it for serious work. Why? Because HP is cheap and doesn't want to shell out for decent components. That and/or they like their locked down bootloader.
Want to bet on whether or not SpaceX convinces NASA to let them transition to sending up the DragonV2 on the supply runs as part of the testing? It would give the new capsule valuable flight data, and wouldn't cost NASA another cent contract wise.
They say "randomly" generated coefficients, but I'll bet you can use a psudo random number generator and pass in the same seed value to both the sender and reciever. Bam, now both sides have the same set of semi random coefficients to use when doing the fancy linear algebra.
Out of curiosity, what do they need their own spaceport for, especially if (as an earlier poster notes) they only intend to launch about once a month? Are there constraints on the use of launchpads at Cape Canaveral, where there's already been a great deal of investment in building launchpads, support structures, etc.?
That's a part of it. Without looking into the details, Cape Canaveral doesn't seem to want to deal with more than one rocket launch within a week of each other. Wile the US Gov launches from Vandenberg, they also launch from Cape Canaveral. Plus the Orbital Sciences launches, other commercial launches, and everything else that happens there. The current story is often launch attempt one aborts, launch attempt two has a delay to make sure they fixed the problem, then it's a several week delay because Cape Canaveral had another launch planned.
The other reason is the idea of recovering the Falcon 9 rocket. It could be easier to launch from Texas and recover at Cape Canaveral.
The problem with ASLR is that it involves Position Independent Code. The absolute addresses may change, but functions are called by their relative addresses to each other. When you know were one function is you know were all the others are as well. A mild example of this new randomization technique is to randomize the file order being fed into the linker. Different file order means different function layout. Then even if you know where one function is you don't know where all the others are without looking at that individual binary.
Heck, I've been trying to redesign something to use the ATTiny and bitbang USB. Thinking about it, that's where the 4k number came from. Boards with more memory and more features are getting cheaper and that's awesome. I can't wait for when integrated USB becomes as common as integrated SPI and TTL.
Now if you'll excuse me I need to get out of my cave and yell at some kids on my lawn.
I would expect to use a micro that can address enough memory for the job to be done right. Who mentioned Arduinos? It wasn't me.
I was just talking in general. When someone says "simple microcontroller" I think of an ATMicro/Mega or something like the MSP430 most of which cap out somewhere between 2 and 16k. Anything more than that is a full ARM soc and normally is expensive and has finicky power and i/o requirements compared to the "simple microcontrollers" I normally work with. They're the lap of luxury since, like I said, you normally spend large amounts of time to make the code work with the 4k device instead of the 16k just to save a few cents per unit.
> So you can read and write to an SD card, you just can't run code off it.
That seems like a good thing for a voting machine.
Good for voting machines, bad for anyone who doesn't need any fancy features but needs more than 4k Bytes of code. Since that's your entire program space with those small microcontrollers. You find weird bugs and limitations in many of those since they have to use a stripped down libc. When you hit that code cap most of the time your only option is to redesign the entire board or start using hacks to cut down on code size. The Arduino might have popularized them, but microcontrollers are still a game where you spend hundreds of thousands of dollars up front just to save ten cents per unit.
Also, since it's much more of a pain to update code don't expect things to be patched unless they're critical. Even then it would be really expensive. Worse, since these things still use a stack you can still get them via Return Oriented Programming.
SD cards are actually even easier since you can talk to them over SPI. You can get a fifty cent microcontroller to read and write from those with no problem. The annoying thing is that those microcontrollers use a Harvard architecture. Instruction and data code use entirely different memory. So you can read and write to an SD card, you just can't run code off it.
FBI... Policing.... That's good, tell me another. J. Edgar Hoover pretty much set the tone for the FBI. Which organization do you think is actually prosecuting most whisleblowers and anyone the gov doesn't like?
It sounds to me like they're finally admitting that this is a basic service that everyone should be provided with. I wonder how much longer it will take before they regulate it as such (as a utility).
The thing is that the FCC (US government agency that regulates telecoms) can do that. It's what the whole Title II reclassification thing is all about. http://www.washingtonpost.com/... Which is why the lobbyists and congress are freaking out. https://www.techdirt.com/artic...
This should have far reaching ramifications when it comes to copyright law. As long as the original video or photographs were made consensually or in public then the photographer owns the copyright. I don't see how that can be undone. It also should open the door for further defining what exactly entails "compromising the reputation". What if someone takes a (non-sexual) photograph of a person cheating in public? Or a video of someone acting like a jerk? Those would also compromise the reputation of the subject. I wouldn't be surprised if this gets overturned higher up.
That was my thought as well but remember the story about right to be forgotten. That case said it's ok to censor someone and have them remove totally factual articles and links. It was the online equivalent of if you don't like what someone said about you in a book then they have to stop printing it and pull it from store shelves, and bookstores have to remove all traces of it ever existing from their system.
It would have been a totally different lawsuit if it happened across the pond. Here in the US this would have been Copyright and First Amendment (both explicitly given to the gov) vs something much more nebulous (defamation or publicity rights maybe). Of course, here in the US they've determined that the first amendment doesn't cover "obscene" speech. Pity they don't really define obscene.
Another thing is that in most marriages the assets are merged. It's always tricky to divide everything in the divorce. The common (American at least) feeling is "she gets everything, and he gets to keep the clothes on his back."
The ideal use for mini projectors is when you need to give a presentation and don't want to deal with the hassle of setting up a projector and then connecting a laptop to it. The ideal projector has a USB port for a thumb drive on the back and automatically starts whatever powerpoint is on there. Add another USB port for the presenters remote and you're golden.
Business people don't like having to worry about cables and configuring multiple monitors. Heck, I don't either when I'm crunched for time and there's an audience staring at me and waiting for me to get it all working.
"Zero-Day exploit allowing the attacker to run arbitrary code"
I thought these words should be history based on the implemented NX bit, sandboxing, multiple lines of defense and Data Execution Prevention features of MS Windows after XP.
Why do all these features fail, when they are specifically designed for exposed code like IE? Or does this warning assume the worst case, where all these other features are turned off?
The NX bit, and DEP forced us to develop Return Oriented Programming https://en.wikipedia.org/wiki/... Basically because function arguments and return pointers are on the stack you can make the code that's already there do the work for you. It's not as easy as just writing a little shell code and tends to be more specific as far as the version of the software the victim is running, but it's really quite neat and hard to stop.
Slashdot Mirror
I'm sorry he lost his leg, but there is no why this is 'fair' by any sense of the word.
It's Deus Ex: Human Revolution coming to real life. Next thing you know it'll be someone with some other disability going ahead. Perhaps a footballer with a prosthetic that helps him catch and hold the ball. The tipping point (as it is in the game) is when you can get near natural control of a prosthetic by connecting it directly to a persons nerves or brain.
The nice thing is all the waste powder can be reused without having to melt it down, so there's almost no waste.
How big of an advantage is that, though? Melting down metal to reuse it is really easy, much easier than with other materials like glass or plastics. Especially in the case where you control the environment and can be assured of its purity, vs. collecting scrap metal or something (but even collecting scrap metal is profitable).
Well, it's Titanium, so it's probably quite a pain. Titanium has an ignition temperature that's lower than its melting point so you have to work with it in an inert atmosphere, and apparently it's still a pain even then. Given that I'll bet titanium scrap isn't worth a quarter of its value when in block form.
The article says "each surgery cost just 20% of what a traditional jaw implant surgery would have cost." It doesn't say how much of that was due to not having to recycle 80% of the material and how much of it was because the jaw was made to order. It certainly implied though that a decent bit of the savings was due to laser sinstering.
You're also forgetting the cost of the multi axis milling machines that this process replaces. If they're even close in price and you're using 80% less material then why wouldn't any manufacturing shop go for it?
When they say 3D printed do they mean a metal mill, or can we 3D print with any random material now?
And if so, why not use the far more tried tested, and better alternative milling?
Nope, it's "laser sintering." They take metal powder and fuse it together one layer at a time. You put a layer of metal powder down, the laser fuses it together, then you put another layer of powder over it. Repeat until done.
The nice thing is all the waste powder can be reused without having to melt it down, so there's almost no waste. The other thing is you can print shapes that are really hard to mill. No more ridiculously complex 6 axes milling machines that the US treats like munitions. Just Google ITER sometime to see the craziness.
If Google kills unpopular services, why is Google+ not dead yet?
Because Google tends to spam you to set up an account if you use any of their other services. If you define active as making more than 3 posts a month then over 99% of Google+ account's aren't active.*
* I made those numbers up, but they're probably reasonably close to true.
Take a look at Xprivacy. If you have a rooted android phone you can do that and more today. I think Cyanogenmod also has some sort of permission control built in now. Even Iphone's have basic permissions. The only thing that doesn't is stock Android and Windows.
Google knows there's a market for it, but they're worried about ad revenue or apps breaking because it would be "too much of a burden" on developers to make sure there apps behave when permissions are denied.
Just once, I'd love to see some side by side comparisons of the end-to-end RF ability of these new phones. While voice calls, the kids tell me, are a thing of the past we are getting more and more dependent on data connections. And how you get data is via RF link. And yet I haven't even seen link quality mentioned in a single review for at least two generations of smart phones.
The truth is that there are few radio manufacturers. If you have Verizon in the US then it's almost certainly going to be a Qualcom radio. The exact same Qualcom radio that are in all the other phones of the same generation. Kind of hard to differentiate yourself if the carrier forces you to use the same thing everything else is using.
That brings up another point. Radios are carrier and region dependent. Verizon and Sprint use CDMA, while just about everyone else in the world (except Japan) use GSM. Worse, the US and Europe use different frequencies. I think most newer radios can handle them all, but that certainly wasn't true in the past.
I think it's even mentioned at one point of the Supreme Court's decision. They'll have to do a bit more than that, and only offer pre-recorded programming, but It'll probably be done and, if they have the money to survive the lawsuits, it'll end up before the Supreme Court again. http://nypost.com/2014/06/26/hope-for-aereo-despite-supreme-court-defeat/
Did you actually have the console, or just the HogPC software?
Because while it might be great for live shows, I've truly come to despise the hog when it comes to programming anything more complicated than a single scene. Seriously, I think I liked the lighting console that I had to use floppies and a VGA cable with better. At least that one was clear on exactly which scene I was working on, so I know exactly what happens when I press the next button. (that's without getting into overrides :/)
Seriously, the console/software is pretty good if you want colors on the fly with someone basically DJing the lights, but It would be a pita to run something like a play.
But, But you can just put Linux on there. Then you can use Java for all those fancy things you mentioned. That will solve all your problems.
https://xkcd.com/801/
Seriously, I'm pretty sure I've seen this on an old Vonage box I was playing around with.
For many of the smaller microcontrollers we're lucky to have a full libc. It's always a wonderful day when I have to choose between rewriting an algorithm to use integers or taking a chance with new hardware with a built in floating point unit when the ship date is fast approaching.
A deadline has a wonderful way of concentrating the mind. No deadline, less motivation.
This is the next big one: https://en.wikipedia.org/wiki/...
Honestly I wonder how many devices it will affect. I know anything which isn't patched and relies on security certificates is hosed, but what about the network printer that nobody cares about and is running completely unsecured?
Will these puppies also have some form of GPS in them? Not only will they know what filth you are posting but they'll know where you posted it from.
With triangulation, and Doppler shift calculations it doesn't matter. Though it's much harder to do those things with everyone vs just have them send their position data. Not that ISPs don't already know everything about you.
ChromeOS, in contrast, comes with more stringent system requirements that would cost HP a bit more.
In other words, this thing is going to be really slow if you try to use it for serious work. Why? Because HP is cheap and doesn't want to shell out for decent components. That and/or they like their locked down bootloader.
Want to bet on whether or not SpaceX convinces NASA to let them transition to sending up the DragonV2 on the supply runs as part of the testing? It would give the new capsule valuable flight data, and wouldn't cost NASA another cent contract wise.
They say "randomly" generated coefficients, but I'll bet you can use a psudo random number generator and pass in the same seed value to both the sender and reciever. Bam, now both sides have the same set of semi random coefficients to use when doing the fancy linear algebra.
Out of curiosity, what do they need their own spaceport for, especially if (as an earlier poster notes) they only intend to launch about once a month? Are there constraints on the use of launchpads at Cape Canaveral, where there's already been a great deal of investment in building launchpads, support structures, etc.?
That's a part of it. Without looking into the details, Cape Canaveral doesn't seem to want to deal with more than one rocket launch within a week of each other. Wile the US Gov launches from Vandenberg, they also launch from Cape Canaveral. Plus the Orbital Sciences launches, other commercial launches, and everything else that happens there. The current story is often launch attempt one aborts, launch attempt two has a delay to make sure they fixed the problem, then it's a several week delay because Cape Canaveral had another launch planned.
The other reason is the idea of recovering the Falcon 9 rocket. It could be easier to launch from Texas and recover at Cape Canaveral.
If you think a bit further... An operating system could load an executable at a different address every time it is used, without recompilation!
The problem with ASLR is that it involves Position Independent Code. The absolute addresses may change, but functions are called by their relative addresses to each other. When you know were one function is you know were all the others are as well. A mild example of this new randomization technique is to randomize the file order being fed into the linker. Different file order means different function layout. Then even if you know where one function is you don't know where all the others are without looking at that individual binary.
Like I said, cost is king.
Heck, I've been trying to redesign something to use the ATTiny and bitbang USB. Thinking about it, that's where the 4k number came from. Boards with more memory and more features are getting cheaper and that's awesome. I can't wait for when integrated USB becomes as common as integrated SPI and TTL.
Now if you'll excuse me I need to get out of my cave and yell at some kids on my lawn.
Where did 4K of code come from?
I would expect to use a micro that can address enough memory for the job to be done right.
Who mentioned Arduinos? It wasn't me.
I was just talking in general. When someone says "simple microcontroller" I think of an ATMicro/Mega or something like the MSP430 most of which cap out somewhere between 2 and 16k. Anything more than that is a full ARM soc and normally is expensive and has finicky power and i/o requirements compared to the "simple microcontrollers" I normally work with. They're the lap of luxury since, like I said, you normally spend large amounts of time to make the code work with the 4k device instead of the 16k just to save a few cents per unit.
> So you can read and write to an SD card, you just can't run code off it.
That seems like a good thing for a voting machine.
Good for voting machines, bad for anyone who doesn't need any fancy features but needs more than 4k Bytes of code. Since that's your entire program space with those small microcontrollers. You find weird bugs and limitations in many of those since they have to use a stripped down libc. When you hit that code cap most of the time your only option is to redesign the entire board or start using hacks to cut down on code size. The Arduino might have popularized them, but microcontrollers are still a game where you spend hundreds of thousands of dollars up front just to save ten cents per unit.
Also, since it's much more of a pain to update code don't expect things to be patched unless they're critical. Even then it would be really expensive. Worse, since these things still use a stack you can still get them via Return Oriented Programming.
SD cards are actually even easier since you can talk to them over SPI. You can get a fifty cent microcontroller to read and write from those with no problem. The annoying thing is that those microcontrollers use a Harvard architecture. Instruction and data code use entirely different memory. So you can read and write to an SD card, you just can't run code off it.
FBI... Policing.... That's good, tell me another. J. Edgar Hoover pretty much set the tone for the FBI. Which organization do you think is actually prosecuting most whisleblowers and anyone the gov doesn't like?
It sounds to me like they're finally admitting that this is a basic service that everyone should be provided with.
I wonder how much longer it will take before they regulate it as such (as a utility).
The thing is that the FCC (US government agency that regulates telecoms) can do that. It's what the whole Title II reclassification thing is all about. http://www.washingtonpost.com/... Which is why the lobbyists and congress are freaking out. https://www.techdirt.com/artic...
This should have far reaching ramifications when it comes to copyright law. As long as the original video or photographs were made consensually or in public then the photographer owns the copyright. I don't see how that can be undone. It also should open the door for further defining what exactly entails "compromising the reputation". What if someone takes a (non-sexual) photograph of a person cheating in public? Or a video of someone acting like a jerk? Those would also compromise the reputation of the subject. I wouldn't be surprised if this gets overturned higher up.
That was my thought as well but remember the story about right to be forgotten. That case said it's ok to censor someone and have them remove totally factual articles and links. It was the online equivalent of if you don't like what someone said about you in a book then they have to stop printing it and pull it from store shelves, and bookstores have to remove all traces of it ever existing from their system.
It would have been a totally different lawsuit if it happened across the pond. Here in the US this would have been Copyright and First Amendment (both explicitly given to the gov) vs something much more nebulous (defamation or publicity rights maybe). Of course, here in the US they've determined that the first amendment doesn't cover "obscene" speech. Pity they don't really define obscene.
Another thing is that in most marriages the assets are merged. It's always tricky to divide everything in the divorce. The common (American at least) feeling is "she gets everything, and he gets to keep the clothes on his back."
The ideal use for mini projectors is when you need to give a presentation and don't want to deal with the hassle of setting up a projector and then connecting a laptop to it. The ideal projector has a USB port for a thumb drive on the back and automatically starts whatever powerpoint is on there. Add another USB port for the presenters remote and you're golden.
Business people don't like having to worry about cables and configuring multiple monitors. Heck, I don't either when I'm crunched for time and there's an audience staring at me and waiting for me to get it all working.
"Zero-Day exploit allowing the attacker to run arbitrary code"
I thought these words should be history based on the implemented NX bit, sandboxing, multiple lines of defense and Data Execution Prevention features of MS Windows after XP.
Why do all these features fail, when they are specifically designed for exposed code like IE? Or does this warning assume the worst case, where all these other features are turned off?
The NX bit, and DEP forced us to develop Return Oriented Programming https://en.wikipedia.org/wiki/... Basically because function arguments and return pointers are on the stack you can make the code that's already there do the work for you. It's not as easy as just writing a little shell code and tends to be more specific as far as the version of the software the victim is running, but it's really quite neat and hard to stop.