Reading Dave Cinege's sad words on linuxrouter.org does not reflect a fundamental flaw of open source development any more than hearing a friend agonizing about breaking up with his girldfriend reflects a fundamental flaw of love.
I hate to point it out, but his personal domain is 'psychosis.com'.
I think the sci-fi "force field" metaphor is pretty justified in this case and isn't even stretched too far beyond its specs. This thing has vacuum on one side, air on the other and no solid object in between. This is pretty damn cool.
With chemical rocket technology a huge proportion of the launch mass is propellant. The rocket equasion is pretty unforgiving - the cost of each extra m/s of delta-V is exponential.
On a close pass like this you can send a lot more mass to Mars for less money.
If a student copies Shakespeare, and claims it as their own original work, it is plaigerism, and by tradition, they will get a failure on whatever assignment they plagierized on. Here, the public domain appears at first glance to be open to legal plagiarism.
Not everything that is immoral should be illegal. Why do so many people seem to have trouble understanding this simple concept?
Blacken the solder you want to remove with a candle. Wipe the soot from parts you don't want to heat too much. If necessary, cover them with aluminum foil. Place the circuit close to a high powered halogen lamp and - presto. Even PGA parts with high pin count can be pulled out with relative ease (try doing that with a soldering iron and wick!)
The committee also heard from Sen. Charles E. Schumer (D-N.Y.), who advocates a nationwide do-not-spam registry similar to a newly created do-not-call telemarketing list, plus an international treaty on spam.
According to RFC 1541 the.int top level domain is for organizations established by international treaties.
How does linux freshen the mainframe labor pool, and not the Unix/Windows NT pool?
Linux on mainframe has a certain coolness factor to it. It could draw a younger workforce to mainframes that will learn the rest of mainframe lore on the way.
The effort in porting and maintaining linux on mainframes may be worth it for IBM just for this.
The Itanic always had full 32 bit x86 compatibility and a significant percentage of its die real estate is spent on it. It just sucks so much that it's outperformed by software emulation. Needless to say, if you use the software emulation layer you would *still* be paying for the hardware emulation.
No they're trying to spin this story as if it's actually something good and not a patch for a white elephant.
I rather agree with the parent. Talking to a lawyer instead of Slashdot would probably be a good start..
Talking to a lawyer is good idea, but it's not instead of asking Slashdot. A lawyer would give you no advice about the moral issues of the open source community and let you hear different opinions.
Hydrogen is a method for energy storage. If you're lucky like the icelanders you have cheap geothermal energy you can convert to hydrogen. But if the energy is coming from fossil fuels it only means that they will be burned at the power station instead of in your car engine.
...cancelled the latest of its "shuttle replacement" programs (the X-33/Venturestar).
NASA has cancelled about seven of these shuttle replacement programs over the last 20 years. The cancelled programs were naturally over budget and over schedule by the time they were cancelled. The money wasted would have probably been enough for at least one complete system.
If any of the proposed replacements had delivered even 10% of what it promised it would still be a major improvement over the shuttle - the first (and so far the last) semi-reusable orbital lifter ever built.
We at Showtime Online express our apologies; however, these pages are intended for access only from within the United States. "
Haven't read article == 5 insightful?
on
Run Your Car on Grease
·
· Score: 2, Informative
This is not Biodiesel. This engine mod runs on straight vegetable oil without any processing other than filtering. Grease is usually too viscous to be used directly but this system preheats it to make it flow better.
Re:Other Smart Ideas...
on
Nuke-Lobbing
·
· Score: 1
The equivalent of 40 tons of TNT is still enough to cause a gigantic explosion, of course, and gives you some sort of idea of the incredible devastation caused by a strategic thermonuclear warhead in the megaton range.
A megaton device does cause an incredible amount of devastation compared to a 40 ton device, but not as much as you might expect. First, a large part of the energy is spread across a volume of air so the radius of destruction scales according to somewhere between a square and cubic root of the yield. Second, the energy is not spread uniformly so much of it is wasted on (ahem...) "overkill" near ground zero.
I don't mean to belittle nuclear weapons or their effects in any way - just put it in perspective.
And it's made much greater by operating a vehicle with razor-thin margins. Take a look at this amazing story about the reentry of Soyuz 5. One of the things that struck me was how robust soviet space hardware is. The shuttle, by comparison, is extremely fragile. It couldn't possibly take one percent of the punishment that Volynov's capsule took.
And yet Boris Volynov is alive to tell the story.
Rick Husband, William McCool, Michael Anderson, David Brown, Kalpana Chawla, Laurel Blair and Ilan Ramon are not.
The Russian space program had its share of lethal accidents - but it also had several major accidents where the crew survived. With the shuttle the abort modes are mostly theoretical. In practice any serious accident means loss of the entire crew.
Well I like the fact that microsoft is looking at adopting mozilla like (i think) licences
Microsoft owns the copyright.
You are not allowed to distribute the source.
You must pay royalties to Microsoft for every device incorporating the binary (modified or not).
You can make changes and I think you don't have to give them back to Microsoft. If you want to avoid repatching everything on Microsoft's next release you can hand the changes back to Microsoft for inclusion.
AFAICT it's exactly like "Shared Source" except that you are allowed to compile it and distribute the binaries - but only as part of a hardware device.
Re:Please, keep the internet free
on
WLANs As Spam Conduit
·
· Score: 2, Informative
My point is that mearly blocking ports is never the answer, keeping your patches up to date and not running open relays is a simple solution.
And how is that going to help if your wireless LAN is wide open to anyone passing by? The mail relay is, by definition, open for insiders.
- The companion SAHF instruction, which is used much more extensively because the flags in the status word for the 8087 were designed to be in the right position so that moving the status word to AX and then doing SAHF would allow conditional branches based on the result of floating point comparisons.
That's right. I forgot that one. The 8087 coprocessor shared the same memory and instruction queue as the 8086 but had no direct access to CPU registers so after a floating point comparison you would store the status word into memory from the 8087, load it into the 8086's AH register and so SAHF. They could have used the stack and POPF but decided it wouldn't be a good idea because it would affect flags other than condition bits so they picked this legacy instruction which is used till this very day.
Why USB is better than UART
on
Legacy-Free PCs
·
· Score: 5, Informative
Interfacing to a UART is trivial. Much more trivial than with USB
Standard serial ports don't have a power supply with a well-specified current budget (you have to use wierd parasitic power supplies that don't always work on laptop serial ports).
Serial ports require negative voltages (more workarounds with switched-capacitor inverters).
Serial ports don't have a reliable way to detect plug and unplug events.
Serial ports don't have a standard way to identify the type of device plugged in.
Serial ports cannot be expanded and chained with hubs.
Serial ports require an interrupt per byte and are connected on the legacy ISA bus - each I/O cycle takes nearly a microsecond (thousands of cycles on a modern PC!). A USB controller is a bus-mastering PCI device with a scheduler driven by table data structures.
Serial ports are slower. Sure, USB 1.1 is not terribly fast at 12mbps but it was a design compromise to keep it cheap enough so you can build a mouse for less than $1 material cost.
Serial ports don't have isochronous transfer modes for timing-sensitive data like audio and modem signals.
A DB9 connector is less friendly than the USB connector. I hate those retaining screws.
A DB9 connector is not designed with recessed pins for better ESD protection.
A DB9 connector is not designed with data pins recessed farther than the power and ground pins for safe hot insertion and removal.
Serial ports use an antiquated notion of DCE and DTE to determine connector gender and everyone generally screws it up so gender changers are occasionally necessary.
Yes. A UART interface is trivial. Except when you have to find out why it's not working (oops, it's disabled or set up in the BIOS as an IRDA port).
Serial ports don't have predefined device classes so a variety of devices can use a standard driver.
Sure, all this comes at a certain price and the Microsoft implementation of USB PnP and standard device class drivers leaves something do be desired but it's generally an improvement over UARTs.
with a lineage going all the way back to the Intel 4004
Not quite to the 4004, but there is a direct relic of the 8008 in your latest Pentium. The LAHF instruction (Load AH with Flags) loads some of the status flags into the AH register in a layout compatible with that of the 8008, 8080 and 8085 processors so that "LAHF; PUSH AX" produces the same result as the the 8008 instruction that pushes the A and Flags registers.
This instruction was added to the 8086 to make it possible to automatically translate 8085 code.
Slashdot Mirror
Reading Dave Cinege's sad words on linuxrouter.org does not reflect a fundamental flaw of open source development any more than hearing a friend agonizing about breaking up with his girldfriend reflects a fundamental flaw of love.
I hate to point it out, but his personal domain is 'psychosis.com'.
The shape of this spacecraft reminds me a bit of another Jupiter mission.
I think the sci-fi "force field" metaphor is pretty justified in this case and isn't even stretched too far beyond its specs. This thing has vacuum on one side, air on the other and no solid object in between. This is pretty damn cool.
It's the delta-V.
With chemical rocket technology a huge proportion of the launch mass is propellant. The rocket equasion is pretty unforgiving - the cost of each extra m/s of delta-V is exponential.
On a close pass like this you can send a lot more mass to Mars for less money.
If a student copies Shakespeare, and claims it as their own original work, it is plaigerism, and by tradition, they will get a failure on whatever assignment they plagierized on. Here, the public domain appears at first glance to be open to legal plagiarism.
Not everything that is immoral should be illegal. Why do so many people seem to have trouble understanding this simple concept?
Blacken the solder you want to remove with a candle. Wipe the soot from parts you don't want to heat too much. If necessary, cover them with aluminum foil. Place the circuit close to a high powered halogen lamp and - presto. Even PGA parts with high pin count can be pulled out with relative ease (try doing that with a soldering iron and wick!)
The committee also heard from Sen. Charles E. Schumer (D-N.Y.), who advocates a nationwide do-not-spam registry similar to a newly created do-not-call telemarketing list, plus an international treaty on spam.
.int top level domain is for organizations established by international treaties.
According to RFC 1541 the
How does linux freshen the mainframe labor pool, and not the Unix/Windows NT pool?
Linux on mainframe has a certain coolness factor to it. It could draw a younger workforce to mainframes that will learn the rest of mainframe lore on the way.
The effort in porting and maintaining linux on mainframes may be worth it for IBM just for this.
Ultra-Intrusive- Wide-Intrustiven d coming soon:
Ultra-Wide-Intrusive
Ultra-Fast
Ultra-Fast-Wide-Intrustive160
a
Ultra-Fast-Wide-Intrustive320
What's next? Serial-Attached-Intrusive?
The Itanic always had full 32 bit x86 compatibility and a significant percentage of its die real estate is spent on it. It just sucks so much that it's outperformed by software emulation. Needless to say, if you use the software emulation layer you would *still* be paying for the hardware emulation.
No they're trying to spin this story as if it's actually something good and not a patch for a white elephant.
See this story on The Register
It appears that Venus offers the most Earth-like environment in the entire solar system - not on the ground, but 50 km up in the clouds.
Take a look at Colonization of Venus by Geoffrey Landis.
I rather agree with the parent. Talking to a lawyer instead of Slashdot would probably be a good start ..
Talking to a lawyer is good idea, but it's not instead of asking Slashdot. A lawyer would give you no advice about the moral issues of the open source community and let you hear different opinions.
Asking Slashdot is a good idea, too.
The first stage is actually reusable and pump-fed. The second stage is a pressure-fed expendable.
Hydrogen is a method for energy storage. If you're lucky like the icelanders you have cheap geothermal energy you can convert to hydrogen. But if the energy is coming from fossil fuels it only means that they will be burned at the power station instead of in your car engine.
...cancelled the latest of its "shuttle replacement" programs (the X-33/Venturestar).
NASA has cancelled about seven of these shuttle replacement programs over the last 20 years. The cancelled programs were naturally over budget and over schedule by the time they were cancelled. The money wasted would have probably been enough for at least one complete system.
If any of the proposed replacements had delivered even 10% of what it promised it would still be a major improvement over the shuttle - the first (and so far the last) semi-reusable orbital lifter ever built.
V for Vengeance
C for Craphics? Well, at least that how I first read it.
"
Sorry
We at Showtime Online express our apologies; however, these
pages are intended for access only from within the United States.
"
This is not Biodiesel. This engine mod runs on straight vegetable oil without any processing other than filtering. Grease is usually too viscous to be used directly but this system preheats it to make it flow better.
The equivalent of 40 tons of TNT is still enough to cause a gigantic explosion, of course, and gives you some sort of idea of the incredible devastation caused by a strategic thermonuclear warhead in the megaton range.
A megaton device does cause an incredible amount of devastation compared to a 40 ton device, but not as much as you might expect. First, a large part of the energy is spread across a volume of air so the radius of destruction scales according to somewhere between a square and cubic root of the yield. Second, the energy is not spread uniformly so much of it is wasted on (ahem...) "overkill" near ground zero.
I don't mean to belittle nuclear weapons or their effects in any way - just put it in perspective.
There is inherent risk in space flight
And it's made much greater by operating a vehicle with razor-thin margins. Take a look at this amazing story about the reentry of Soyuz 5. One of the things that struck me was how robust soviet space hardware is. The shuttle, by comparison, is extremely fragile. It couldn't possibly take one percent of the punishment that Volynov's capsule took.
And yet Boris Volynov is alive to tell the story.
Rick Husband, William McCool, Michael Anderson, David Brown, Kalpana Chawla, Laurel Blair and Ilan Ramon are not.
The Russian space program had its share of lethal accidents - but it also had several major accidents where the crew survived. With the shuttle the abort modes are mostly theoretical. In practice any serious accident means loss of the entire crew.
Well I like the fact that microsoft is looking at adopting mozilla like (i think) licences
Microsoft owns the copyright.
You are not allowed to distribute the source.
You must pay royalties to Microsoft for every device incorporating the binary (modified or not).
You can make changes and I think you don't have to give them back to Microsoft. If you want to avoid repatching everything on Microsoft's next release you can hand the changes back to Microsoft for inclusion.
AFAICT it's exactly like "Shared Source" except that you are allowed to compile it and distribute the binaries - but only as part of a hardware device.
My point is that mearly blocking ports is never the answer, keeping your patches up to date and not running open relays is a simple solution.
And how is that going to help if your wireless LAN is wide open to anyone passing by? The mail relay is, by definition, open for insiders.
- The companion SAHF instruction, which is used much more extensively because the flags in the status word for the 8087 were designed to be in the right position so that moving the status word to AX and then doing SAHF would allow conditional branches based on the result of floating point comparisons.
That's right. I forgot that one. The 8087 coprocessor shared the same memory and instruction queue as the 8086 but had no direct access to CPU registers so after a floating point comparison you would store the status word into memory from the 8087, load it into the 8086's AH register and so SAHF. They could have used the stack and POPF but decided it wouldn't be a good idea because it would affect flags other than condition bits so they picked this legacy instruction which is used till this very day.
Interfacing to a UART is trivial. Much more trivial than with USB
Standard serial ports don't have a power supply with a well-specified current budget (you have to use wierd parasitic power supplies that don't always work on laptop serial ports).
Serial ports require negative voltages (more workarounds with switched-capacitor inverters).
Serial ports don't have a reliable way to detect plug and unplug events.
Serial ports don't have a standard way to identify the type of device plugged in.
Serial ports cannot be expanded and chained with hubs.
Serial ports require an interrupt per byte and are connected on the legacy ISA bus - each I/O cycle takes nearly a microsecond (thousands of cycles on a modern PC!). A USB controller is a bus-mastering PCI device with a scheduler driven by table data structures.
Serial ports are slower. Sure, USB 1.1 is not terribly fast at 12mbps but it was a design compromise to keep it cheap enough so you can build a mouse for less than $1 material cost.
Serial ports don't have isochronous transfer modes for timing-sensitive data like audio and modem signals.
A DB9 connector is less friendly than the USB connector. I hate those retaining screws.
A DB9 connector is not designed with recessed pins for better ESD protection.
A DB9 connector is not designed with data pins recessed farther than the power and ground pins for safe hot insertion and removal.
Serial ports use an antiquated notion of DCE and DTE to determine connector gender and everyone generally screws it up so gender changers are occasionally necessary.
Yes. A UART interface is trivial. Except when you have to find out why it's not working (oops, it's disabled or set up in the BIOS as an IRDA port).
Serial ports don't have predefined device classes so a variety of devices can use a standard driver.
Sure, all this comes at a certain price and the Microsoft implementation of USB PnP and standard device class drivers leaves something do be desired but it's generally an improvement over UARTs.
with a lineage going all the way back to the Intel 4004
Not quite to the 4004, but there is a direct relic of the 8008 in your latest Pentium. The LAHF instruction (Load AH with Flags) loads some of the status flags into the AH register in a layout compatible with that of the 8008, 8080 and 8085 processors so that "LAHF; PUSH AX" produces the same result as the the 8008 instruction that pushes the A and Flags registers.
This instruction was added to the 8086 to make it possible to automatically translate 8085 code.