Without seeing that episode I really cannot comment on it one way or the other. But I personally know a few officers who HAVE shot people and/or been shot, and they claim some calibers will knock you back. I would imagine it depends heavily on the type of bullets used (pointed vs hollow point) and whether or not it hit the bone and stopped or passed through.
You are right, by that logic it certainly does not have enough force to puncture my skin, I think the whole thing about bullets being capable of killing is a total myth.
Momentum cannot be "absorbed" by the slide because it is conserved. The force can be spread out in time, but the momentum transfer is unchanged.
You are right, I was being too simplistic.
Check out the Mythbusters episode in which they shoot a human-sized hunk of meat hanging from a hook with powerful rifles.
Yeah, I will have to see that. I will bet good money that the bullet passes right though the meat (even with a medium powered rifle, it would easily), so hardly any of the energy is absorbed is it?
Now let's look at handguns, the bullets are generally designed to stop in the body, ideally hitting bone. A 7mm Mag will likely go right through me. However a hollowpoint.45, which is slower (subsonic) and less aerodynamic will transfer all of its force into my body, and it certainly has enough force to knock me down if it hits center mass, although not lift my off my feet.
You are right, and it is certainly true that the GUN is taking more force than the target. However a semi-automatic absorbs quite a lot of the recoil and basically harnesses it for the reload mechanism, so it is not all transfered to the shooter's hands, arms, etc.
Depends on what you mean propelled backwards. Lifted up off their feet? no. Throw back? Sure. You could hit someone in the shoulder with a.45 and knock them over backwards. I could push you over backwards with one finger in the right spot. I just claimed the shotee would take more force than the shooter, which should be obvious when you think of how a semi-automatic works (this would not hold true for a revolver or a blowback style semi-auto, like a Makarov).
any bullet with enough momentum to pick up the bad guy and carry him 20 feet backwards though the air would have to do the same to the person holding the gun
Not quite. While being thrown 20 feet is of course nuts, it is not unexpected that a bullet would extert more force on the target than the shooter, if we are talking about a semi-automatic. In that case a good portion of the recoil is absorbed into the reloading mechanism (the slide). We are also talking about that force being impacted (possibly) directly into the bone of a target, whereas the shooter is generally holding the gun in such a way as to lessen the recoil's effect on himself. His wrists, elbows, and shoulders will distribute it.
He did a lot of good for the internet as Vice President? If I recall correctly (and I do) he was the lead cheerleader for the clipper chip initiative. Remember? The one where the US government was going to enforce the use of crypto that they held the key to and outlaw private research and developement in the field of cryptography? Go read "The Electronic Privacy Papers", heck just read the declassified government memos surrounding those days. He certainly was a major "good" player in the early days of the internet, but he flushed all that good karma down the toliet with Clipper as far as I am concerned.
Imagine how much MORE scary the Patriot Act would be today had he succeded?
I predict half the/.ers will agree with me purely because they are dumb enough to be infuated with Bush and therefor hate Gore anyway. And of course half will disagree because no matter how anti-privacy and anti-crypto Gore was, he is still a Democrat and can do no wrong.
I won't argue with that, but it seems that remote attestation will allow them to comply with the letter of the law (even publishing all protocol specs) and still lock out competition.
Trusted computing as a whole is a good thing, with one componant that is a very bad thing: Remote attestation. This will allow remote systems to know exactly what software you are using to connect to them (cryptographically, so no spoofing it unless you are really good at factoring large primes:)
The nightmare scenerio is far beyond the typical DRM use case that most slashdotters fret about. Imagine if Microsoft wanted to ensure that only "trusted" client can connect to windows file sharing services, ie lock out Samba. Or make it so that only IE can connect to IIS webservers.
Sure they may not, but they are building the technology to allow this to happen and if ever they fall upon hard times, they will be legally obligated to their shareholders to take any advantages they can to ensure profits.
The big problem is, it's basically impossible to run a mail server without using RBL's (we tried)
Try harder, PSU provides email for 130,000+ users (generally around 6 million emails a day) without a RBL. RBLs are a bad solution looking for a problem, there are much better ways to deal with spam that are not run by clueless zealots.
Well, since the salt is the only piece that actually does anything, why not just dispense with the hash (which is useless in this small of a sample space) and use the salt as a symetric encryption key? That is basically what you are doing anyway.
Really, so why are planes affected by the tiny transmitters inside cell phones but not the massive TV, Radio (commercial and amateur), radar, and other transmitters that blast them with many many times as much RF near the airports?
The difference in power more than makes up for the proximity issue.
As a further exercise, try finding a single verified instance of a cell phone affecting an airplane. I did some quick googling but all I can find are "friend of a friend" type stories.
There didn't used to be ads, the addition of them broke the social contract with me:P
Besides I do not block anything, I simply am selective about what I request from the web server. The files referenced in the HTML are suggestions, nowhere did anyone say I had to load them all. I am doing the company a favor by not wasting their bandwidth on something I am not going to look at anyway.
I'm sorry your business model was so poorly thought out. Really I am, but just because you were dumb enough to think that people would like having poorly designed, seizure inducing animated gifs, bad flash animations, and other obnoxious/offensive content displayed on their PC is no reason to try to put me through a guilt trip. If your business model is failing, try another one, don't bitch that users don't want to play your stupid game.
I suppose people using Lynx or accessibility enabled browsers are violating this social contract as well?
They can use all the open crypto methods they want, that does not hide the fact that the flawed concept that is DRM depends completely on security by obscurity. It is not the crypto, it is the fact that you have to give the user the private key to unlock the data (because it has to reside on his machine) but you want to keep it hidden from him so that he cannot use it to decrypt the data at will. Someone WILL eventually find the key and extract it. If not from the hardware then from a software based player.
The survey reveals nothing of the kind. It reveals that people do not believe there should be a "right" to post personal information about others on any website, the fact that they may not know what constitutes a "blog" makes no difference.
I've been around here for a while, sure it ain't a 3 digit slashdot id but I've posted my share of comments and generally hit this site a few times a day. Between this kind of crap, the story about Torvalds with the misquote, and the constant misleading stories it is seeming more like/. is being run by a 6th grade intro to journalism class.
Seriously, I should not have to scan down through the comments in every story to find out if the editors got duped yet again by a clever troll or simply did not understand the material they were posting. Some supermarket tabloids have better track records than this.
Slashdot Mirror
Same energy, dissipated over a greater area and (more importantly) over a longer span of time.
Finkployd
Without seeing that episode I really cannot comment on it one way or the other. But I personally know a few officers who HAVE shot people and/or been shot, and they claim some calibers will knock you back. I would imagine it depends heavily on the type of bullets used (pointed vs hollow point) and whether or not it hit the bone and stopped or passed through.
Finkployd
You are right, by that logic it certainly does not have enough force to puncture my skin, I think the whole thing about bullets being capable of killing is a total myth.
Finkployd
Momentum cannot be "absorbed" by the slide because it is conserved. The force can be spread out in time, but the momentum transfer is unchanged.
.45, which is slower (subsonic) and less aerodynamic will transfer all of its force into my body, and it certainly has enough force to knock me down if it hits center mass, although not lift my off my feet.
You are right, I was being too simplistic.
Check out the Mythbusters episode in which they shoot a human-sized hunk of meat hanging from a hook with powerful rifles.
Yeah, I will have to see that. I will bet good money that the bullet passes right though the meat (even with a medium powered rifle, it would easily), so hardly any of the energy is absorbed is it?
Now let's look at handguns, the bullets are generally designed to stop in the body, ideally hitting bone. A 7mm Mag will likely go right through me. However a hollowpoint
Finkployd
You are right, and it is certainly true that the GUN is taking more force than the target. However a semi-automatic absorbs quite a lot of the recoil and basically harnesses it for the reload mechanism, so it is not all transfered to the shooter's hands, arms, etc.
Finkployd
Depends on what you mean propelled backwards. Lifted up off their feet? no. Throw back? Sure. You could hit someone in the shoulder with a .45 and knock them over backwards. I could push you over backwards with one finger in the right spot.
I just claimed the shotee would take more force than the shooter, which should be obvious when you think of how a semi-automatic works (this would not hold true for a revolver or a blowback style semi-auto, like a Makarov).
Finkployd
any bullet with enough momentum to pick up the bad guy and carry him 20 feet backwards though the air would have to do the same to the person holding the gun
Not quite. While being thrown 20 feet is of course nuts, it is not unexpected that a bullet would extert more force on the target than the shooter, if we are talking about a semi-automatic. In that case a good portion of the recoil is absorbed into the reloading mechanism (the slide). We are also talking about that force being impacted (possibly) directly into the bone of a target, whereas the shooter is generally holding the gun in such a way as to lessen the recoil's effect on himself. His wrists, elbows, and shoulders will distribute it.
Finkployd
Soooooo The university math profs are wrong, and the random slashdot guy who gives no examples to support his claim is correct?
Can you at give some examples of what you are refering to?
Finkployd
He did a lot of good for the internet as Vice President? If I recall correctly (and I do) he was the lead cheerleader for the clipper chip initiative. Remember? The one where the US government was going to enforce the use of crypto that they held the key to and outlaw private research and developement in the field of cryptography? Go read "The Electronic Privacy Papers", heck just read the declassified government memos surrounding those days. He certainly was a major "good" player in the early days of the internet, but he flushed all that good karma down the toliet with Clipper as far as I am concerned.
/.ers will agree with me purely because they are dumb enough to be infuated with Bush and therefor hate Gore anyway. And of course half will disagree because no matter how anti-privacy and anti-crypto Gore was, he is still a Democrat and can do no wrong.
Imagine how much MORE scary the Patriot Act would be today had he succeded?
I predict half the
Finkployd
In fairness, no I cannot blame you. This place is not known for its vast knowledge of cryptography :)
Finkployd
Sigh.
I screwed up the wording, I already explained it much earlier in this thread. You are a day late and a dollar short on that joke.
Finkployd
Did two wrongs just make a right?
Funny, I already explained I mistyped in another post. Being accused of not knowing cryptography is quite amusing :)
Finkployd
I worded that wrong, finding the two primes that are the factors of a large number.
Finkployd
I won't argue with that, but it seems that remote attestation will allow them to comply with the letter of the law (even publishing all protocol specs) and still lock out competition.
Finkployd
Trusted computing as a whole is a good thing, with one componant that is a very bad thing: Remote attestation. This will allow remote systems to know exactly what software you are using to connect to them (cryptographically, so no spoofing it unless you are really good at factoring large primes :)
The nightmare scenerio is far beyond the typical DRM use case that most slashdotters fret about. Imagine if Microsoft wanted to ensure that only "trusted" client can connect to windows file sharing services, ie lock out Samba. Or make it so that only IE can connect to IIS webservers.
Sure they may not, but they are building the technology to allow this to happen and if ever they fall upon hard times, they will be legally obligated to their shareholders to take any advantages they can to ensure profits.
I've only ever run MVS 3.8 under Hercules (and set up MVT for someone else). Never actually followed up trying to run OS/390 or zOS. Someday maybe.
And who is "we"?
The big problem is, it's basically impossible to run a mail server without using RBL's (we tried)
Try harder, PSU provides email for 130,000+ users (generally around 6 million emails a day) without a RBL. RBLs are a bad solution looking for a problem, there are much better ways to deal with spam that are not run by clueless zealots.
Finkployd
A zOS based laptop would rock. You turn it on and are faced with your 25x80 ISPF screen :)
I don't know where they would cram all the PF keys though.
Finkployd
Well, since the salt is the only piece that actually does anything, why not just dispense with the hash (which is useless in this small of a sample space) and use the salt as a symetric encryption key? That is basically what you are doing anyway.
Really, so why are planes affected by the tiny transmitters inside cell phones but not the massive TV, Radio (commercial and amateur), radar, and other transmitters that blast them with many many times as much RF near the airports?
The difference in power more than makes up for the proximity issue.
As a further exercise, try finding a single verified instance of a cell phone affecting an airplane. I did some quick googling but all I can find are "friend of a friend" type stories.
Finkployd
There didn't used to be ads, the addition of them broke the social contract with me :P
Besides I do not block anything, I simply am selective about what I request from the web server. The files referenced in the HTML are suggestions, nowhere did anyone say I had to load them all. I am doing the company a favor by not wasting their bandwidth on something I am not going to look at anyway.
I'm sorry your business model was so poorly thought out. Really I am, but just because you were dumb enough to think that people would like having poorly designed, seizure inducing animated gifs, bad flash animations, and other obnoxious/offensive content displayed on their PC is no reason to try to put me through a guilt trip. If your business model is failing, try another one, don't bitch that users don't want to play your stupid game.
I suppose people using Lynx or accessibility enabled browsers are violating this social contract as well?
They can use all the open crypto methods they want, that does not hide the fact that the flawed concept that is DRM depends completely on security by obscurity. It is not the crypto, it is the fact that you have to give the user the private key to unlock the data (because it has to reside on his machine) but you want to keep it hidden from him so that he cannot use it to decrypt the data at will. Someone WILL eventually find the key and extract it. If not from the hardware then from a software based player.
Finkployd
The survey reveals nothing of the kind. It reveals that people do not believe there should be a "right" to post personal information about others on any website, the fact that they may not know what constitutes a "blog" makes no difference.
/. is being run by a 6th grade intro to journalism class.
I've been around here for a while, sure it ain't a 3 digit slashdot id but I've posted my share of comments and generally hit this site a few times a day. Between this kind of crap, the story about Torvalds with the misquote, and the constant misleading stories it is seeming more like
Seriously, I should not have to scan down through the comments in every story to find out if the editors got duped yet again by a clever troll or simply did not understand the material they were posting. Some supermarket tabloids have better track records than this.
Finkployd