What about using, instead of a grille, a cone in front of the engine? Think of a cow catcher, but much longer and more tapered: the idea is to deflect a bird away from the engine, not to actually stop the bird. If the cone is elongated enough, the tangential force imparted to the bird should be enough to deflect it without disintegrating it.
Human skin has a tensile strength of 7.5 MPa (i.e. 7.5 N/mm^2); birds should be similar. Skin can probably do better than this for brief periods. Consider a spherical, slightly elastic bird with negligible velocity that masses 9kg hitting an aircraft moving at 100 m/s (223 mph). If the bird accelerates to the speed of the aircraft in 0.1 seconds via a contact area of 10 square millimeters, then by the familiar F=MA equation, the bird experiences a force of 9,000 newtons distributed over those 10 square milliliters for a pressure of 900 MPa, and the bird explodes, sending bird-chunks into the engine.
However, if a bird hits the side of an 89 degree cone, then it doesn't need to accelerate to the speed of the aircraft, but can instead roll along the cone: in the instant the bird impacts the cone, it will need to accelerate in the forward direction by only cos(89 degrees), or 0.017 of the forward speed of the aircraft, or only 1.74 m/s, which in turn imparts a pressure of only 15.7 MPa: the bird is quite dead, but safely deflected away from the engine without disintegrating too badly.
And our goals are not mutually exclusive. It's possible to recognize that killing kittens is wrong, but that that widespread vigilantism greater wrong.
A lot of discourse that used to travel over Usenet now happens on web forums, which are frustrating for people who remember what Usenet was like. The worst part about web forums is that they effective have only one client. I miss being able to choose from among the huge variety of news readers, each of which competed for features and users. News clients did everything imaginable, from automatically threading and searching messages to maintaining customer scoring rules. Even when forum software implements these features, support is often fragmentary. I've yet to see a system besides Slash that gives me something approaching slrn's scorefiles.
On Usenet, a user choosing a poor client doesn't affect anyone else. You used different clients to read the same messages. But on a web forum, your only choice is to move to a completely different forum if you don't like the single hard-coded "client" built into the forum software. The messages to too closely bound to the software used to read them, and we suffer for it.
Usenet also has advantages like a single group hierarchy, the offline message queuing, efficient crossposting, and message cancellation, but these are minor next to the ability to use my own damn client.
But I suppose web forums have one advantage over usenet, from a certain point of view: you can slap ads on a forum.
It's enough to make you wish we were real engineers. If an engineer is working on a bridge and his supervisor orders him to use a dangerously weak cable, the engineer has both a moral and legal duty to refuse. The same principle ought to apply to software developers, especially when life and property are at stake.
The purpose of the site is to talk about science and technology, not to see how creatively you can offend people. These wretched posts we're talking about contribute nothing productive and should be hidden.
It is sickening that so many of you think it is a joke.
Sickening, but not surprising. Civilization has always been a thin veneer on top of barbarism, and it barely keeps our worst instincts in check. Remove via anonymity the social cues that inhibit these instincts, and we end up with the appalling comments here.
right now i'm using some "connection db class" in c# made by someone else
Don't use crappy libraries you pulled off some web forum then. Always be suspicious of third party libraries and only use the highest-quality ones.
concatenated strings, no SqlParameters or whatsoever, no, just single and dangerous sql commands concatenateds
Yes, this is a shitty API. But it's still no excuse for SQL injection. You can always quote any variable pieces of information before using them to construct the SQL string. You could also just write a small string parser and implement variable substitution yourself. (It'd take less than 50 lines of code.)
If you can't do either of these things, well, you have no business being a programmer.
I'll just use my nice, simple, reliable Symbian phone that does everything the iPhone, but without all the drama. What's the big deal about the iPhone, except that it's fashionable?
Besides: I really don't like touchscreens. I much prefer physical buttons.
As for coersion, ya because that's such a problem in your own home.
Learn your fucking history. Electoral games like this are the reason we changed to secret ballots in the first place. Have you heard of a city called Chicago? If you can verify a vote, you can buy it. Simple.
The reason we have a two party system has to do with the mathematics of game theory and first-past-the-post voting. It's not some vast conspiracy, nor is it something that can be changed if we just "try hard enough". If you want multiple parties, you must change the way votes are counted.
As I understand it, the main problem with implants that receive signals is that a layer of defensive glial cells forms around electrodes left in the brain. These cells act as electrical insulators and decrease the strength of the signal that can be picked up. How does this grid system mitigate this problem?
Ah, the old "I've got mine, go screw yourself" mentality. It requires raising taxes because the increase in taxes represents your new health insurance premium; but you save money because you don't have to pay your own premium to a private insurer. What's so hard to understand about that concept?
If you want to save money simply deny people access to medical care if they aren't willing to sign a financial liability waiver
In High School, I had to sign an anti-drug "contract". That didn't mean anything, and neither would you "waiver": medical care bankrupts people now, and it'd bankrupt people even harder under your "plan".
Frankly, society (I mean tax payers) do not "owe" you free medical care
We're the richest nation in the world. Of course we should guarantee the health of our citizens. It's inhumane for some people to drive around Hummers while others with severe mental illnesses live on the street. The people in Hummers aren't more deserving: they're just luckier genetically or socially.
the medical industry isn't some kind of subservient slave class.
In Canada, doctors are private businesspeople. Government-funded health care is not the same as government-run health care.
If we're going to slide into communism
There's no empirical evidence that socialized services lead to the Soviet-style government your suggest. By all accounts, Western Europe is a pretty damn nice place to live.
You know, this country used to have a "can do!" attitude. What ever happened to that? Now it's all about "no, no, no".
I'll summarize: Medicare "administrative costs" are within about 3-4% absolute points of private insurance administrative costs.
Conservatively.
Additionally, fraud is rampant in Medicare, which ultimately costs more than a little bit of administrative overhead.
Even if true, this is a better state of affairs than the current system. It is far better to pay too much than to deny care to someone who really needs it.
Finally, benefits for Medicare have been growing at an unsustainable rate since it's inception.
You're complaining about medicare growth? Have you seen the increase in private insurance premiums?
additional liabilities like socialized health care
Socialized health care saves money. Sure, the government pays for health care, but that money doesn't have to then come out of your pocket or your company's pocket. Since socialized health care is more efficient than today's system, we save money overall.
Sorry, but I would refuse to work at a place that locked down my personal workstation like that. Or at least I'd ask for extra money on top of what I'd get otherwise.
As a programmer, I have the knowledge to maintain my own system, thankyouverymuch.
First of all, you have to admit that the product line names are confusing. You'd expect a product with the word "server" in its title to be useful for, well, servers. Second, even ESX is still less efficient than just using a kernel to isolate different processes. That's what it's there for, after all.
Slashdot Mirror
What about using, instead of a grille, a cone in front of the engine? Think of a cow catcher, but much longer and more tapered: the idea is to deflect a bird away from the engine, not to actually stop the bird. If the cone is elongated enough, the tangential force imparted to the bird should be enough to deflect it without disintegrating it.
Human skin has a tensile strength of 7.5 MPa (i.e. 7.5 N/mm^2); birds should be similar. Skin can probably do better than this for brief periods. Consider a spherical, slightly elastic bird with negligible velocity that masses 9kg hitting an aircraft moving at 100 m/s (223 mph). If the bird accelerates to the speed of the aircraft in 0.1 seconds via a contact area of 10 square millimeters, then by the familiar F=MA equation, the bird experiences a force of 9,000 newtons distributed over those 10 square milliliters for a pressure of 900 MPa, and the bird explodes, sending bird-chunks into the engine.
However, if a bird hits the side of an 89 degree cone, then it doesn't need to accelerate to the speed of the aircraft, but can instead roll along the cone: in the instant the bird impacts the cone, it will need to accelerate in the forward direction by only cos(89 degrees), or 0.017 of the forward speed of the aircraft, or only 1.74 m/s, which in turn imparts a pressure of only 15.7 MPa: the bird is quite dead, but safely deflected away from the engine without disintegrating too badly.
And our goals are not mutually exclusive. It's possible to recognize that killing kittens is wrong, but that that widespread vigilantism greater wrong.
I'd rather not live in a society in which 51% can arbitrarily sentence the other 49% to death.
A lot of discourse that used to travel over Usenet now happens on web forums, which are frustrating for people who remember what Usenet was like. The worst part about web forums is that they effective have only one client. I miss being able to choose from among the huge variety of news readers, each of which competed for features and users. News clients did everything imaginable, from automatically threading and searching messages to maintaining customer scoring rules. Even when forum software implements these features, support is often fragmentary. I've yet to see a system besides Slash that gives me something approaching slrn's scorefiles.
On Usenet, a user choosing a poor client doesn't affect anyone else. You used different clients to read the same messages. But on a web forum, your only choice is to move to a completely different forum if you don't like the single hard-coded "client" built into the forum software. The messages to too closely bound to the software used to read them, and we suffer for it.
Usenet also has advantages like a single group hierarchy, the offline message queuing, efficient crossposting, and message cancellation, but these are minor next to the ability to use my own damn client.
But I suppose web forums have one advantage over usenet, from a certain point of view: you can slap ads on a forum.
It's enough to make you wish we were real engineers. If an engineer is working on a bridge and his supervisor orders him to use a dangerously weak cable, the engineer has both a moral and legal duty to refuse. The same principle ought to apply to software developers, especially when life and property are at stake.
The purpose of the site is to talk about science and technology, not to see how creatively you can offend people. These wretched posts we're talking about contribute nothing productive and should be hidden.
Sickening, but not surprising. Civilization has always been a thin veneer on top of barbarism, and it barely keeps our worst instincts in check. Remove via anonymity the social cues that inhibit these instincts, and we end up with the appalling comments here.
Don't use crappy libraries you pulled off some web forum then. Always be suspicious of third party libraries and only use the highest-quality ones.
Yes, this is a shitty API. But it's still no excuse for SQL injection. You can always quote any variable pieces of information before using them to construct the SQL string. You could also just write a small string parser and implement variable substitution yourself. (It'd take less than 50 lines of code.)
If you can't do either of these things, well, you have no business being a programmer.
I'll just use my nice, simple, reliable Symbian phone that does everything the iPhone, but without all the drama. What's the big deal about the iPhone, except that it's fashionable?
Besides: I really don't like touchscreens. I much prefer physical buttons.
Learn your fucking history. Electoral games like this are the reason we changed to secret ballots in the first place. Have you heard of a city called Chicago? If you can verify a vote, you can buy it. Simple.
The reason we have a two party system has to do with the mathematics of game theory and first-past-the-post voting. It's not some vast conspiracy, nor is it something that can be changed if we just "try hard enough". If you want multiple parties, you must change the way votes are counted.
As I understand it, the main problem with implants that receive signals is that a layer of defensive glial cells forms around electrodes left in the brain. These cells act as electrical insulators and decrease the strength of the signal that can be picked up. How does this grid system mitigate this problem?
Ah, the old "I've got mine, go screw yourself" mentality. It requires raising taxes because the increase in taxes represents your new health insurance premium; but you save money because you don't have to pay your own premium to a private insurer. What's so hard to understand about that concept?
In High School, I had to sign an anti-drug "contract". That didn't mean anything, and neither would you "waiver": medical care bankrupts people now, and it'd bankrupt people even harder under your "plan".
We're the richest nation in the world. Of course we should guarantee the health of our citizens. It's inhumane for some people to drive around Hummers while others with severe mental illnesses live on the street. The people in Hummers aren't more deserving: they're just luckier genetically or socially.
In Canada, doctors are private businesspeople. Government-funded health care is not the same as government-run health care.
There's no empirical evidence that socialized services lead to the Soviet-style government your suggest. By all accounts, Western Europe is a pretty damn nice place to live.
You know, this country used to have a "can do!" attitude. What ever happened to that? Now it's all about "no, no, no".
Conservatively.
Even if true, this is a better state of affairs than the current system. It is far better to pay too much than to deny care to someone who really needs it.
You're complaining about medicare growth? Have you seen the increase in private insurance premiums?
It works for other countries. Why would it be any different in ours?
Medicare has 5% overhead. Private insurers have closer to 30%. The facts don't agree with your anti-government stance.
Socialized health care saves money. Sure, the government pays for health care, but that money doesn't have to then come out of your pocket or your company's pocket. Since socialized health care is more efficient than today's system, we save money overall.
Sorry, but I would refuse to work at a place that locked down my personal workstation like that. Or at least I'd ask for extra money on top of what I'd get otherwise.
As a programmer, I have the knowledge to maintain my own system, thankyouverymuch.
I agree. More nuclear plants. Clean, silent, efficient energy for everyone
Inefficient as fuck. Whereas if they'd just been processes running under the same OS, the kernel would already know they were sharing the same page.
Inefficiently as fuck, by the way
Uh, why? Even shit applications don't replace or extend the kernel
FreeBSd runs Linux apps just fine last time I checked
How the fuck is someone with (only) an MCSE supposed to manage a Unix system?
Which ends up being as complex as the kernel-userland boundary, so why not just use a kernel-userspace boundary in the first place?
First of all, you have to admit that the product line names are confusing. You'd expect a product with the word "server" in its title to be useful for, well, servers. Second, even ESX is still less efficient than just using a kernel to isolate different processes. That's what it's there for, after all.