It does get lighter e=mc^2; as you lose energy, even batteries get lighter.
I don't think at this point jet airliners would be going full-e (although GE? is building prototypes) but smaller aircraft would definitely benefit, fuel cost alone would benefit as well as mechanic costs.
There's historically marginalized people everywhere, if you go back far enough in time everyone was and everyone has. Those "natives" oppressed other natives at some point (unless you believe in that wholesome native tribe - Comanches, Tibetans, Hawaiians - they weren't very nice to their neighbors) so do those ancestors get to claim the land? If you do keep giving people what is 'rightfully' theirs by going back further and further, then you get into situations like Africa where tribal wars and slavery have been marginalizing the country for centuries, long before a white man ever put a flag in the ground.
To give people like American "Indians", Hawaiians a pittance because someone feels bad about their ancestors' actions is marginalizing them even further. To say they were 'wholesome', peaceful or somehow better than anyone else is racist, it's taking away their humanity, there was good and evil as well in their history, to ignore it is just hiding their rich history of wars, peace, settlement, nomadic life, trade and treaties.
Is it "their" land (as in they own it currently and it was in the process of being taken by the government)? No? If they want it back, they should conquer it and deal with the consequences of trying to stake claim to another nation's property.
Sure: OpenChange, Zimbra can pretty much drop-in replace Exchange. For Sharepoint, there are plenty of wiki's and document management systems around, Sharepoint isn't even the best (or most used) at it.
Can you pay Windows sysadmins minimum wage? Wherever I look, I don't see 120k/year difference in wages (I assume a full time sysadmin would have to handle at least 10, if not 100 servers). And a sysadmin that just knows Windows is a bad sysadmin, I would never hire someone that is a one trick pony.
But why in the hell do you want to shell out thousands of dollars on Windows Server ($6k or so to run unlimited virtualized environments?) for something that runs perfectly fine on (free) Linux.
In this instance but how many times don't ads start autoplaying? It's a code change at best.. If I want, I could buy ad space with a vendor that allows JS and have CNN displaying Disney toons using torrents.
Sorry, I got my EE degree in a non-English language and haven't used it much in my US career.
How does a wire cause a reverse voltage (-5V on Pin 1) when all it gets is +5V? Pin 1 VCC (+5 V, red wire) Pin 4 Ground (black wire)
We're talking about the wires (pin 1 and 4) carrying the voltages being reversed right? The data wires should be on optocouplers or some form of transformer.
The simplest protection against miswiring a voltage source or preventing reverse current from flowing (eg. in PV panels) is a diode in series with the voltage source. It should be a bit more complex (probably a FET), but if you have an EE degree, you get the idea. When the 5V goes on the ground wire there should be some current flowing, enough (diode + resistor across the wire for the simplest of diagrams) to shut down the controller (however it wants to control that, polyfuse is just an idea, the USB design was after my time).
Back then all the hardware was roughly the same speed. You couldn't saturate your disk bus with a simple tar because your CPU and memory had latencies measured in 100ns-ms, your disk could catch up. Disks are still roughly the same speed as they were 10 years ago. Also, js and html have become bigger and more of it can be found on random websites. I remember a time when you would optimize websites to fit all text, graphics and code under 50-100kb (~1-2s load time). jQuery alone is that size now and we sometimes load several libraries in a page. Our network is faster but our disk isn't. There is also a lot more graphics and bells and whistles, we are back to the 90s with the flashing under construction and dancing skeletons but now it's in code.
The device should prevent this. USB has to negotiate higher currents so high currents shouldn't be present in the first place. Second, short circuits and overcurrents should be handled by the host as well as reverse wiring by the device. In the device it's easy: 1 diode short circuits a reverse polarity situation causing an overcurrent >500mA on the host which switches it's polyfuse.
The argument could be made that the website was a pop-under and shared silently entire torrents. Loading a torrent is willful, you have to click and download and click again and have programs installed. Now, anyone with JavaScript enabled can be a torrent hoster or Tor exit node, *why yes your honor, anyone visiting these porn sites is being sued*
The fingerprint reader is part of the encryption stack, it's built in chip does things so your average law enforcement agency can't just intercept or fake a true/false signal.
A counterfeit key reader is a security risk and when the encryption keys rotate (the software update or time triggers) it's built in keys won't match.
If BitCoin operators want to heat my home with electric power, they are more than welcome to do it. I would even supplement their costs up to the equivalent expenditure in gas every winter (~$100). Electric is relatively cheap here (5c/kWh) but I'm not sure whether it is profitable for BitCoining.
a) That's a problem with closed source software, not your OS or your video card. Commercial software producers are not going to support older stuff forever because it isn't profitable but they also don't let you tinker with it or compile it on an older platform. But the point is that the old stuff should still work and not slow down your computer over time. I haven't used Flash in at least a decade for that precise reason but for simple animations it seems like keeping an older version of Flash or getting Gnash may be a solution.
b) Most (good) OS'es aren't vulnerable either. Linux is just coming out of their first LTS, Ubuntu had a few LTS versions and they're all still secure and stable and equally fast on that 80486 as it was 10 years ago. Antivirus is completely and utterly unnecessary for non-Windows OS (and no, market share has nothing to do with it anymore) as are standalone firewalls if your machine is well-managed. Firewalls do nothing against application-based attacks, only close ports that shouldn't be open in the first place or OS'es that somehow don't let you control the ports that are open.
Any classic RAID level is useless if you want data safety. So one of your drives in RAID10/5/6 returns garbled data (without an error), which copy/parity do you trust?
Also many 5/6 implementations won't actually calculate the parity chunk on reads, only for rebuilds. There are some pricey controllers that do full checksumming ala ZFS on chip but as with most hardware systems the SPOF becomes your controller.
With the drives becoming ever larger and faster, more data is being read but the errors per terabyte read are not really decreasing so the probability of you reading an error is nearing 1 faster than ever.
The problem is that it appears to users as such. Our computers do not get measurably slower over time but we get used to faster computers elsewhere in our life and thus our home computer appears less fast or our TV is more blurry. It's a matter of perception mostly, some things like security updates may make things a bit slower but that's just what security requires (you can't expect your 20-year old computer to compute a 2048-bit key as fast as it does it's contemporary 256-bit keys).
Games and most non-DB applications are very poorly written for opening large files.
Most libraries have some very bad "defaults" for modern systems as the common denominator (2TB drives) still have 512B blocks and thus programs will often read very large files 512B at a time.
The problem with putting regular panels next to the road is space especially in rural areas where the roads are often already cutting through previous private lands captured by the government. Capturing more land for use by city slickers' energy production (smart farmers will often already have solar panels) will not go over well and may be more expensive in buyouts and legal issues than developing brand new technology.
No it won't bring anyone to jail. There are no laws concerning the sourcing of materials besides perhaps the Iranian/Cuban/Korean embargoes.
Sometimes you do source from someone "reliable" but somewhere along the chain (read: in China) someone will replace the original product with fakes or even the manufacturer factory will make a number of unauthorized devices.
Design specs typically don't even include such details as makes and model numbers as those can change at a moments notice even from the original manufacturer.
The problem I've found with a LOT of USB things even the FTDI ones is that they're only putting out a stepped up 12V or even just 5V while classically the serial port was a bit above 12V.
Although the spec allows for +3V/-3V at the lowest end, most stuff just won't work well. Also the stepped up voltages seem to have a lot of noise and variation, again something the spec allows but "back in the day" few allowed for those.
Also, the USB data bus frequency leaks noise into the serial bus portion, sometimes visibly on a scope or definitely noticeable on a spectrum analyzer. The problem probably being poor design and shielding on modern computers. I've also had some issues with ground loops but that is only in very specific circumstances.
For critical applications, I've found the Ethernet serial servers are more reliable. Even running commands through an Arduino will do better in a pinch. But those cheap USB adapters are good enough for setting up a switch or uploading a firmware when the device is out of order anyway but are not intended to be permanently attached.
Unless someone explicitly did daemon >/var/log/mydaemon.log, a standard log and syslog would just log everything you sent to it by default and the daemon itself could specify where and how it got sent. Journald not only needs the app but also needs itself instructions on its logging level and verbosity in very arcane journald style specifications. If I'm doing a one-off change, I don't even bother with systemd. It takes me 30-40 lines and 5 file changes to set up a simple script that runs every so often and its logging correctly, in those cases I have a single systemd thing that calls a script that has all my scripts listed, crontab style, that I can add to to my pleasure.
A) don't trust hardware crypto unless you have verified its open source firmware and compiled it yourself or run a comparison test in software. Self-encrypting anything is pointless because you can just steal the entire machine to circumvent it, it is only useful when you discard just the drive. You should always use a software crypto for your entire volume to be sure your stuff is both encrypted and compatible with other systems.
B) rely only on open source software with crypto stacks the government (NIST or NSA) doesn't have a hand in or if you do, those that have been mathematically proven for longer than a few years.
C) don't write your own crypto, if you are a smart developer offer patches and write implementations of your obscure crypto for libraries like OpenSSL, that way it can be vetted by others and pointed out where you go wrong. Also don't trust libraries with small amounts of no-name developers or those that just accept everything in the name of speed, user-friendliness, modern methods or agility.
But they don't have to and that's the point. Twitter can arbitrarily decide which political candidate they want to support and silence the rest. But then you would be bitching as well. I'd say that any company that perpetuates someone's speech should out of respect for the constitution and as a show of character allow ALL speech regardless of its merits.
Slashdot Mirror
It does get lighter e=mc^2; as you lose energy, even batteries get lighter.
I don't think at this point jet airliners would be going full-e (although GE? is building prototypes) but smaller aircraft would definitely benefit, fuel cost alone would benefit as well as mechanic costs.
There's historically marginalized people everywhere, if you go back far enough in time everyone was and everyone has. Those "natives" oppressed other natives at some point (unless you believe in that wholesome native tribe - Comanches, Tibetans, Hawaiians - they weren't very nice to their neighbors) so do those ancestors get to claim the land? If you do keep giving people what is 'rightfully' theirs by going back further and further, then you get into situations like Africa where tribal wars and slavery have been marginalizing the country for centuries, long before a white man ever put a flag in the ground.
To give people like American "Indians", Hawaiians a pittance because someone feels bad about their ancestors' actions is marginalizing them even further. To say they were 'wholesome', peaceful or somehow better than anyone else is racist, it's taking away their humanity, there was good and evil as well in their history, to ignore it is just hiding their rich history of wars, peace, settlement, nomadic life, trade and treaties.
Is it "their" land (as in they own it currently and it was in the process of being taken by the government)? No? If they want it back, they should conquer it and deal with the consequences of trying to stake claim to another nation's property.
Sure: OpenChange, Zimbra can pretty much drop-in replace Exchange. For Sharepoint, there are plenty of wiki's and document management systems around, Sharepoint isn't even the best (or most used) at it.
Can you pay Windows sysadmins minimum wage? Wherever I look, I don't see 120k/year difference in wages (I assume a full time sysadmin would have to handle at least 10, if not 100 servers). And a sysadmin that just knows Windows is a bad sysadmin, I would never hire someone that is a one trick pony.
But why in the hell do you want to shell out thousands of dollars on Windows Server ($6k or so to run unlimited virtualized environments?) for something that runs perfectly fine on (free) Linux.
In this instance but how many times don't ads start autoplaying? It's a code change at best.. If I want, I could buy ad space with a vendor that allows JS and have CNN displaying Disney toons using torrents.
Sorry, I got my EE degree in a non-English language and haven't used it much in my US career.
How does a wire cause a reverse voltage (-5V on Pin 1) when all it gets is +5V?
Pin 1 VCC (+5 V, red wire)
Pin 4 Ground (black wire)
We're talking about the wires (pin 1 and 4) carrying the voltages being reversed right? The data wires should be on optocouplers or some form of transformer.
The simplest protection against miswiring a voltage source or preventing reverse current from flowing (eg. in PV panels) is a diode in series with the voltage source. It should be a bit more complex (probably a FET), but if you have an EE degree, you get the idea. When the 5V goes on the ground wire there should be some current flowing, enough (diode + resistor across the wire for the simplest of diagrams) to shut down the controller (however it wants to control that, polyfuse is just an idea, the USB design was after my time).
Back then all the hardware was roughly the same speed. You couldn't saturate your disk bus with a simple tar because your CPU and memory had latencies measured in 100ns-ms, your disk could catch up. Disks are still roughly the same speed as they were 10 years ago. Also, js and html have become bigger and more of it can be found on random websites. I remember a time when you would optimize websites to fit all text, graphics and code under 50-100kb (~1-2s load time). jQuery alone is that size now and we sometimes load several libraries in a page. Our network is faster but our disk isn't. There is also a lot more graphics and bells and whistles, we are back to the 90s with the flashing under construction and dancing skeletons but now it's in code.
The device should prevent this. USB has to negotiate higher currents so high currents shouldn't be present in the first place. Second, short circuits and overcurrents should be handled by the host as well as reverse wiring by the device. In the device it's easy: 1 diode short circuits a reverse polarity situation causing an overcurrent >500mA on the host which switches it's polyfuse.
The argument could be made that the website was a pop-under and shared silently entire torrents. Loading a torrent is willful, you have to click and download and click again and have programs installed. Now, anyone with JavaScript enabled can be a torrent hoster or Tor exit node, *why yes your honor, anyone visiting these porn sites is being sued*
The fingerprint reader is part of the encryption stack, it's built in chip does things so your average law enforcement agency can't just intercept or fake a true/false signal.
A counterfeit key reader is a security risk and when the encryption keys rotate (the software update or time triggers) it's built in keys won't match.
What's in New Hampshire?
If BitCoin operators want to heat my home with electric power, they are more than welcome to do it. I would even supplement their costs up to the equivalent expenditure in gas every winter (~$100). Electric is relatively cheap here (5c/kWh) but I'm not sure whether it is profitable for BitCoining.
a) That's a problem with closed source software, not your OS or your video card. Commercial software producers are not going to support older stuff forever because it isn't profitable but they also don't let you tinker with it or compile it on an older platform. But the point is that the old stuff should still work and not slow down your computer over time. I haven't used Flash in at least a decade for that precise reason but for simple animations it seems like keeping an older version of Flash or getting Gnash may be a solution.
b) Most (good) OS'es aren't vulnerable either. Linux is just coming out of their first LTS, Ubuntu had a few LTS versions and they're all still secure and stable and equally fast on that 80486 as it was 10 years ago. Antivirus is completely and utterly unnecessary for non-Windows OS (and no, market share has nothing to do with it anymore) as are standalone firewalls if your machine is well-managed. Firewalls do nothing against application-based attacks, only close ports that shouldn't be open in the first place or OS'es that somehow don't let you control the ports that are open.
Any classic RAID level is useless if you want data safety. So one of your drives in RAID10/5/6 returns garbled data (without an error), which copy/parity do you trust?
Also many 5/6 implementations won't actually calculate the parity chunk on reads, only for rebuilds. There are some pricey controllers that do full checksumming ala ZFS on chip but as with most hardware systems the SPOF becomes your controller.
With the drives becoming ever larger and faster, more data is being read but the errors per terabyte read are not really decreasing so the probability of you reading an error is nearing 1 faster than ever.
The problem is that it appears to users as such. Our computers do not get measurably slower over time but we get used to faster computers elsewhere in our life and thus our home computer appears less fast or our TV is more blurry. It's a matter of perception mostly, some things like security updates may make things a bit slower but that's just what security requires (you can't expect your 20-year old computer to compute a 2048-bit key as fast as it does it's contemporary 256-bit keys).
Games and most non-DB applications are very poorly written for opening large files.
Most libraries have some very bad "defaults" for modern systems as the common denominator (2TB drives) still have 512B blocks and thus programs will often read very large files 512B at a time.
Proof? I think security researchers looking into this would've noticed packets going out encrypted or not during privacy mode.
The problem with putting regular panels next to the road is space especially in rural areas where the roads are often already cutting through previous private lands captured by the government. Capturing more land for use by city slickers' energy production (smart farmers will often already have solar panels) will not go over well and may be more expensive in buyouts and legal issues than developing brand new technology.
No it won't bring anyone to jail. There are no laws concerning the sourcing of materials besides perhaps the Iranian/Cuban/Korean embargoes.
Sometimes you do source from someone "reliable" but somewhere along the chain (read: in China) someone will replace the original product with fakes or even the manufacturer factory will make a number of unauthorized devices.
Design specs typically don't even include such details as makes and model numbers as those can change at a moments notice even from the original manufacturer.
The problem I've found with a LOT of USB things even the FTDI ones is that they're only putting out a stepped up 12V or even just 5V while classically the serial port was a bit above 12V.
Although the spec allows for +3V/-3V at the lowest end, most stuff just won't work well. Also the stepped up voltages seem to have a lot of noise and variation, again something the spec allows but "back in the day" few allowed for those.
Also, the USB data bus frequency leaks noise into the serial bus portion, sometimes visibly on a scope or definitely noticeable on a spectrum analyzer. The problem probably being poor design and shielding on modern computers. I've also had some issues with ground loops but that is only in very specific circumstances.
For critical applications, I've found the Ethernet serial servers are more reliable. Even running commands through an Arduino will do better in a pinch. But those cheap USB adapters are good enough for setting up a switch or uploading a firmware when the device is out of order anyway but are not intended to be permanently attached.
No open source driver available? All these problems are easily solved if you can just handle your own devices.
Unless someone explicitly did daemon > /var/log/mydaemon.log, a standard log and syslog would just log everything you sent to it by default and the daemon itself could specify where and how it got sent. Journald not only needs the app but also needs itself instructions on its logging level and verbosity in very arcane journald style specifications. If I'm doing a one-off change, I don't even bother with systemd. It takes me 30-40 lines and 5 file changes to set up a simple script that runs every so often and its logging correctly, in those cases I have a single systemd thing that calls a script that has all my scripts listed, crontab style, that I can add to to my pleasure.
A) don't trust hardware crypto unless you have verified its open source firmware and compiled it yourself or run a comparison test in software. Self-encrypting anything is pointless because you can just steal the entire machine to circumvent it, it is only useful when you discard just the drive. You should always use a software crypto for your entire volume to be sure your stuff is both encrypted and compatible with other systems.
B) rely only on open source software with crypto stacks the government (NIST or NSA) doesn't have a hand in or if you do, those that have been mathematically proven for longer than a few years.
C) don't write your own crypto, if you are a smart developer offer patches and write implementations of your obscure crypto for libraries like OpenSSL, that way it can be vetted by others and pointed out where you go wrong. Also don't trust libraries with small amounts of no-name developers or those that just accept everything in the name of speed, user-friendliness, modern methods or agility.
But they don't have to and that's the point. Twitter can arbitrarily decide which political candidate they want to support and silence the rest. But then you would be bitching as well. I'd say that any company that perpetuates someone's speech should out of respect for the constitution and as a show of character allow ALL speech regardless of its merits.