Sasser exploits a hole in Windows. A patch for this hole has been out for about three weeks.
Moral of the story: Keep aware of the Critical Updates. You may not need to apply every single one of them, but at least be aware of what they are, and what problems they are designed to fix.
1) By that logic, I should be able to request that my tax money NOT go to subsidizing such activities.
2) No arguement there, but are you claiming that 'Right' = 'Costs cheaper'?
3) So maintaining a system for hundreds of thousands, if not millions is somehow paid back by the contributions of one person? Interesting logic there...
As to the Hitler comment... I'm not suggesting that supporting those with disabilities is wrong. I'm asking why it's right.
Maybe we need to rethink the whole 'equal access' thing. Why jump through hoops to give the disabled to nearly every segment of society? So they can feel 'normal'? They aren't... that's part of the definition.
I mean, what's the point? What is the justification here? I'm not asking this to make flames or troll here... I honestly want to know why this is considered to be a good and desirable thing?
2 seconds? Dude, the lightspeed delay between earth and the moon is just over 1 second. How the heck are you going to launch a projectile at 50% of c?
At this point, the military believes they can build an EM-cannon that will (in a vacum) give a muzzle velocity of about 2 miles (3.2km) per second. Not counting accelaration, that's 34 hours.
I'll leave it to someone else more motivated than I to calculate the velocity added by the rock 'falling' to the earth.
Designing and building a man-rated lander for Mars (one that cannot fail) could easily run up a billion in design costs
The development costs for all the landers was in the engineering of the computers and programs to do what was required in advance of any specific knowledge. In other words, we were trying to build software to do something when we had incomplete information about the operating environment, resorting to simulation and over-engineering.
On a manned mission, we don't need that. We're sending along human beings, who are infintely more adaptable than automated probes.
The Mars failures were not structural or engineering failures. They were programming errors. With a manned mission, we're sending along the programmers, or simply resorting to manual control and common sense.
True. This guy's wife, Colleen, is very attractive. And together, Shawn and Colleen Crosby are one of the best costuming duo's in SF/Fantasy fandom.
(oddness alert, the parent post quoted Larry Niven, who is also close friends to the Crosby's. Members of LASFS and all that. See earlier post of mine for details and links)
The gentleman's name is Shawn Crosby. His wife, Colleen, is very hot looking. They make costumes as hobbies, winning several awards at conventions. Not to mention they are both huge Star Wars fans. Her website is here. It's already down under the load, but bookmark it for future reference.
They (and I) are also members of LASFS (Los Angeles Science Fantasy Society). And I bet more than a few of them read Slashdot
The missions have not gone perfectly, no. But take the recently ended Galileo mission. It was deliberately flown into Jupiter to avoid any chance of contaminating Europa.
And Cassini, to the chagrin of the doom-and-gloom types, completed it's slingshot around Earth without smearing it's RTGs across our atmosphere, and continued out towards Jupiter.
Even the shuttle and ISS. Yes, many things can go wrong, several of which will result in the loss of life of the crew. But none of those will result in anything but the most limited damage on the ground. I haven't seen any reports of anyone on the ground being harmed when the Columbia shredded itself last Feb. (some Slashdotter will probably prove me wrong, but oh well)
There is a huge chasm between an unsuccessful mission and unsafe one, or even an unsafe result.
Here in the Pittsburgh area, I notice that EVERY ATM machine charges $1.50, unless it's owned by the bank and you're a member of that bank. So going to the gas station or the bar to use the ATM is no more expensive than going to another bank.
This was not the case when I lived in CA. Banks would charge $1.00 for non-customers, but if you went to a convenience store, or any ATM machine in a non-bank location, you'd end up paying $2.50 - $3.00. Quartzsite, AZ and Blythe, CA were the worst for that kind of junk. Tiny towns in the middle of nowhere...
An aquaintance once refered to BSG as "Jews In Space", equating the rag-tag fleet with wandering in the desert for 40 years. With the Eqyptian / Roman influences throughout BSG (the 12 tribes, 'Apollo', Casseopia', and didn't they have a Battlestar Atlantis show up once?)
So Glenn Larson grabbed a hodge-podge of stuff, through in some special effects and cobbled together sets (the Viper interiors were reused in Buck Rogers) and tried to pass it off on TV.
Unfortunately, it never hit big with the adults of that time. Kids loved it. But the primetime Neilson ratings didn't measure the kid's interest.
So, it was doomed. Let's not even talk about Galactica, 1980.
This effort takes the names and places, and respins them. Yes, they want to capitalize on the BSG name, because that automatically makes potential viewers familiar with the basic layout.
But if I want to watch a re-hash of BSG, I'll catch the reruns on SciFi. I want to see something NEW.
So I'm going to watch it, and treat it like it's on it's own. Kind of like David Lynch's Dune, and the mini-series. Both tell th story differently, both have their strengths and weaknesses.
Go read Lucifer's Hammer by Larry Niven and Jerry Pournelle. You don't even have to read the whole book... Just the parts leading up to the asteroid collision...
Please note, the only part of the atmosphere that has any kind of wind is the last 100,000 ft. Even the troposphere, which is were the clouds form, and rain and other 'real' weather exists is only 4-6 miles thick. That's why jets routinely cruise at 35,000 feet, to get above it.
Any potential space body is going to come in at least 27,000mph. That's 9 miles a second. So wind will have all of two seconds to push a multi megaton chunk of rock of course.
Yeah, right.
And if it struck L.A... Assume a small one... Volume of about 1 cubic mile... *punches up some numbers..* call it 1*10^28 ergs of energy... so that works out to around 320,000 megatons of explosive force.
Yes, ABS pulsates the brakes. But in the sytems I'm familiar with, the data is not compared to the other wheels, it's checked against it's own wheel. If the wheel goes from x RPM to 0 within a certain timeframe the wheel is considered to be 'locked' and the pads release for 10 microseconds. If the velocity stays at or near zero, then the 'locked' flag is cleared and the pads go back to running on direct input from the master cylinder.
The bit about storing a log is to have a velocity vs. time graph. A well designed system would look at 'now', and compare it to the trend. A 'delta V' chart.
In this bike, you NEVER want the wheel to lock, so the threshold will be rather conservative. If the wheel RPM reaches the equivilant of 12 mph (where the front wheel decends, the brakes should never allow you to lock the wheel, no matter how hard you appy the brakes. Once the front wheel is down, then it would be possible, but I would still think it not desirable.
In a nutshell, this bike can be designed to operate in a stable and safe manner. Of course it's not going to use off-the-shelf hardware. If it would, they would already be on the streets.
ABS... Compare change in velocity over time. And it's childs play to determine forward or reverse rotation. And your array of sensors would have to include a set of inclinometers.
Being on a hill makes no difference. Your center of gravity would be the same, on level ground or an incline. Only a change in velocity (read inertia) would alter it.
The inputs would be the inclinometer, velocity, brake, and throttle sensors. Compare the current values with a short (maybe 5 - 10 seconds) history and it should be fairly easy to determine the trend and react accordingly.
But if you have an axle within an axle you can crank the frame backwards in relation to the wheel
And ABS is all you can have. Any chance of the wheel locking up pitches you into the pavement. You obviously set the threshold to the ABS so your (wheel) velocity is not zero. At least no until the front wheel comes down
...20 yards in front of you a bus pulls out in front of you and stops.
You JAM on the brakes.
What happens?
The gyroscope(s) tilt you back so your inertia adjusted center of gravity (assuming that's not redundant) is still over the axle, and the ABS system brings you to a very rapid stop.
Compaq Proliant 3000, PII/333, 512Mb RAM running RH 7.3 with the SMP kernel (planning on upgrading to a dual PIII/450 as soon as I track down a Rev 2 motherboard) 3x 18Gb SCSI in a hardware RAID 5 mounted as/home, 1 4Gb SCSI for/tmp,/var, and swap, and 1 9Gb SCSI for / and/usr. 40Gb DLT tape drive for backups. APC SmartUPS 1400 for backup power
(got it cheap from e-bay, under $100 including shipping)
Man, is it the day for everyone to switch off their brains?
He said different batches and different vendors. Not different models.
Use the same model all around, but buy them from different vendors (such as CDW, NewEgg, etc.) That way the chances of having a batch failure is minimized.
Even if they take this out, it's too late... They did this once, what's to say they won't do it again?
And the count of 3 just got bumped up to 4. And #4 is the guy that fills out the PO's and requisitions for the Director of IT at a nationwide telcom provider. We have 8 data centers, and 6 more are coming online within the next fiscal year. That's just a hair under $50 million USD of product that I research, and give my blessing upon for the Director to rubber stamp.
And not a single center will have ANY product made by Belkin.
Slashdot Mirror
Well in this case, yes.
Sasser exploits a hole in Windows. A patch for this hole has been out for about three weeks.
Moral of the story: Keep aware of the Critical Updates. You may not need to apply every single one of them, but at least be aware of what they are, and what problems they are designed to fix.
1) By that logic, I should be able to request that my tax money NOT go to subsidizing such activities.
2) No arguement there, but are you claiming that 'Right' = 'Costs cheaper'?
3) So maintaining a system for hundreds of thousands, if not millions is somehow paid back by the contributions of one person? Interesting logic there...
As to the Hitler comment... I'm not suggesting that supporting those with disabilities is wrong. I'm asking why it's right.
We support them because it is the right thing
But why is it the right thing?
Sure, it's a nice thing. But why be nice? And what makes it 'Right'?
Devil's Advocate here...
Maybe we need to rethink the whole 'equal access' thing. Why jump through hoops to give the disabled to nearly every segment of society? So they can feel 'normal'? They aren't... that's part of the definition.
I mean, what's the point? What is the justification here? I'm not asking this to make flames or troll here... I honestly want to know why this is considered to be a good and desirable thing?
2 seconds? Dude, the lightspeed delay between earth and the moon is just over 1 second. How the heck are you going to launch a projectile at 50% of c?
At this point, the military believes they can build an EM-cannon that will (in a vacum) give a muzzle velocity of about 2 miles (3.2km) per second. Not counting accelaration, that's 34 hours.
I'll leave it to someone else more motivated than I to calculate the velocity added by the rock 'falling' to the earth.
Designing and building a man-rated lander for Mars (one that cannot fail) could easily run up a billion in design costs
The development costs for all the landers was in the engineering of the computers and programs to do what was required in advance of any specific knowledge. In other words, we were trying to build software to do something when we had incomplete information about the operating environment, resorting to simulation and over-engineering.
On a manned mission, we don't need that. We're sending along human beings, who are infintely more adaptable than automated probes.
The Mars failures were not structural or engineering failures. They were programming errors. With a manned mission, we're sending along the programmers, or simply resorting to manual control and common sense.
True. This guy's wife, Colleen, is very attractive. And together, Shawn and Colleen Crosby are one of the best costuming duo's in SF/Fantasy fandom.
(oddness alert, the parent post quoted Larry Niven, who is also close friends to the Crosby's. Members of LASFS and all that. See earlier post of mine for details and links)
The gentleman's name is Shawn Crosby. His wife, Colleen, is very hot looking. They make costumes as hobbies, winning several awards at conventions. Not to mention they are both huge Star Wars fans. Her website is here. It's already down under the load, but bookmark it for future reference.
They (and I) are also members of LASFS (Los Angeles Science Fantasy Society). And I bet more than a few of them read Slashdot
DING DING DING We have a winner!
That's the core of what we call civil disobedience. You can break the law, in a peacefull manner. But you still have to accept the consequences.
Ok, looks like I'll have to requalify as a geek.
What can I used to play OGM files? Codecs for Quicktime / Media Player / DivX, or yet another player?
Oh please.. We'd get more oil from drilling in Alaska than we can from Iraq.
And if we really wanted to take over an oil-rich nation, there's always Venuzuela... Heck of a lot closer, and much weaker.
The missions have not gone perfectly, no. But take the recently ended Galileo mission. It was deliberately flown into Jupiter to avoid any chance of contaminating Europa.
And Cassini, to the chagrin of the doom-and-gloom types, completed it's slingshot around Earth without smearing it's RTGs across our atmosphere, and continued out towards Jupiter.
Even the shuttle and ISS. Yes, many things can go wrong, several of which will result in the loss of life of the crew. But none of those will result in anything but the most limited damage on the ground. I haven't seen any reports of anyone on the ground being harmed when the Columbia shredded itself last Feb. (some Slashdotter will probably prove me wrong, but oh well)
There is a huge chasm between an unsuccessful mission and unsafe one, or even an unsafe result.
Here in the Pittsburgh area, I notice that EVERY ATM machine charges $1.50, unless it's owned by the bank and you're a member of that bank. So going to the gas station or the bar to use the ATM is no more expensive than going to another bank.
This was not the case when I lived in CA. Banks would charge $1.00 for non-customers, but if you went to a convenience store, or any ATM machine in a non-bank location, you'd end up paying $2.50 - $3.00. Quartzsite, AZ and Blythe, CA were the worst for that kind of junk. Tiny towns in the middle of nowhere...
It's also on the Spaceballs DVD, when he discusses pitching the movie
Good, thanks. I'll let him know you asked.
But when he made the quote, he was referring to Spaceballs, not BSG.
An aquaintance once refered to BSG as "Jews In Space", equating the rag-tag fleet with wandering in the desert for 40 years. With the Eqyptian / Roman influences throughout BSG (the 12 tribes, 'Apollo', Casseopia', and didn't they have a Battlestar Atlantis show up once?)
So Glenn Larson grabbed a hodge-podge of stuff, through in some special effects and cobbled together sets (the Viper interiors were reused in Buck Rogers) and tried to pass it off on TV.
Unfortunately, it never hit big with the adults of that time. Kids loved it. But the primetime Neilson ratings didn't measure the kid's interest.
So, it was doomed. Let's not even talk about Galactica, 1980.
This effort takes the names and places, and respins them. Yes, they want to capitalize on the BSG name, because that automatically makes potential viewers familiar with the basic layout.
But if I want to watch a re-hash of BSG, I'll catch the reruns on SciFi. I want to see something NEW.
So I'm going to watch it, and treat it like it's on it's own. Kind of like David Lynch's Dune, and the mini-series. Both tell th story differently, both have their strengths and weaknesses.
Good Lord...
Go read Lucifer's Hammer by Larry Niven and Jerry Pournelle. You don't even have to read the whole book... Just the parts leading up to the asteroid collision...
Please note, the only part of the atmosphere that has any kind of wind is the last 100,000 ft. Even the troposphere, which is were the clouds form, and rain and other 'real' weather exists is only 4-6 miles thick. That's why jets routinely cruise at 35,000 feet, to get above it.
Any potential space body is going to come in at least 27,000mph. That's 9 miles a second. So wind will have all of two seconds to push a multi megaton chunk of rock of course.
Yeah, right.
And if it struck L.A... Assume a small one... Volume of about 1 cubic mile... *punches up some numbers..* call it 1*10^28 ergs of energy... so that works out to around 320,000 megatons of explosive force.
Now THAT'S a fire!
Yes, ABS pulsates the brakes. But in the sytems I'm familiar with, the data is not compared to the other wheels, it's checked against it's own wheel. If the wheel goes from x RPM to 0 within a certain timeframe the wheel is considered to be 'locked' and the pads release for 10 microseconds. If the velocity stays at or near zero, then the 'locked' flag is cleared and the pads go back to running on direct input from the master cylinder.
The bit about storing a log is to have a velocity vs. time graph. A well designed system would look at 'now', and compare it to the trend. A 'delta V' chart.
In this bike, you NEVER want the wheel to lock, so the threshold will be rather conservative. If the wheel RPM reaches the equivilant of 12 mph (where the front wheel decends, the brakes should never allow you to lock the wheel, no matter how hard you appy the brakes. Once the front wheel is down, then it would be possible, but I would still think it not desirable.
In a nutshell, this bike can be designed to operate in a stable and safe manner. Of course it's not going to use off-the-shelf hardware. If it would, they would already be on the streets.
ABS... Compare change in velocity over time. And it's childs play to determine forward or reverse rotation. And your array of sensors would have to include a set of inclinometers.
Being on a hill makes no difference. Your center of gravity would be the same, on level ground or an incline. Only a change in velocity (read inertia) would alter it.
The inputs would be the inclinometer, velocity, brake, and throttle sensors. Compare the current values with a short (maybe 5 - 10 seconds) history and it should be fairly easy to determine the trend and react accordingly.
If you assume only a single axle shaft, yes.
But if you have an axle within an axle you can crank the frame backwards in relation to the wheel
And ABS is all you can have. Any chance of the wheel locking up pitches you into the pavement. You obviously set the threshold to the ABS so your (wheel) velocity is not zero. At least no until the front wheel comes down
This pic from Popular Science shows it better.
...20 yards in front of you a bus pulls out in front of you and stops.
You JAM on the brakes.
What happens?
The gyroscope(s) tilt you back so your inertia adjusted center of gravity (assuming that's not redundant) is still over the axle, and the ABS system brings you to a very rapid stop.
Compaq Proliant 3000, PII/333, 512Mb RAM running RH 7.3 with the SMP kernel (planning on upgrading to a dual PIII/450 as soon as I track down a Rev 2 motherboard) 3x 18Gb SCSI in a hardware RAID 5 mounted as /home, 1 4Gb SCSI for /tmp, /var, and swap, and 1 9Gb SCSI for / and /usr. 40Gb DLT tape drive for backups. APC SmartUPS 1400 for backup power
(got it cheap from e-bay, under $100 including shipping)
Man, is it the day for everyone to switch off their brains?
He said different batches and different vendors. Not different models.
Use the same model all around, but buy them from different vendors (such as CDW, NewEgg, etc.) That way the chances of having a batch failure is minimized.
Even if they take this out, it's too late... They did this once, what's to say they won't do it again?
And the count of 3 just got bumped up to 4. And #4 is the guy that fills out the PO's and requisitions for the Director of IT at a nationwide telcom provider. We have 8 data centers, and 6 more are coming online within the next fiscal year. That's just a hair under $50 million USD of product that I research, and give my blessing upon for the Director to rubber stamp.
And not a single center will have ANY product made by Belkin.