While I agree that you shouldn't send a bounce for spam messages after you have accepted it, there's still a nice way of doing this. Simply reject the message before you've accepted delivery. You'll provide useful feedback to false positives and you won't get bounce backs to random addresses.
Conroy is a senator. His electorate is the whole of Victoria.
Since almost everyone votes for the party (above the line) there are two possibilities that will result in him loosing his seat: a) he's moved from his current top position in the labor list to #3 or #4. It's still possible for him to get elected again if he's at #3 but unlikely. He's currently one of the leaders of the Labor Right faction in the Labor party, so even going from #1 to #2 position is unlikely.
b) is for Labor to get less than 1/6 of the vote in Victoria and then still not get anywhere with preferences which is quite unlikely.
Smoking in one of these sounds like a really really stupid thing to do. It seems the dome where your head sits is at ambient pressure. If you're breathing compressed air, that means that at 10m, the partial pressure is 0.42atm. Sounds like a great way to have a nice big flash when you light that cigarette!;-)
Spending longer underwater won't increase the level of nitrogen narcosis you get. It only seems to depend on the partial pressure of nitrogen you're breathing in.
I believe there's annecdoctal evidence that the speed at which you increase this pressure has an effect, but I have never seen/heard of any studies on this. It certainly seems to match my experience though. Descending slower seems to not cause as much nitrogen narcosis as descending like a lead weight
Unfortunately, if you're holding your breath after being told at every occasion during your training to never hold your breath, you probably have other things on your mind, and it is entirely possible.
Lungs won't really blow up though, you'll usually get something called a lung over-expension injury which is a nice way of saying you've stretched your lungs past their design capacity.
Unfortunately for you as well, the path of least resistance when you decide to hold your breath is not through your mouth/nose, but into your blood vessels, which has the problem of introducing air into your veins. This can be pretty nasty if one goes towards your head.
The other problem with helium is that it is nowhere near as forgiving as nitrogen, due to how fast it enters and leaves your system. I've heard too many tales of bent divers from a day where the swell made it too hard to hold a decompression stop. As many things in diving, it's all about the trade-off, and what you're willing to do.
Bends, more correctly known as decompression sickness, is caused by rapid decompression i.e. ascending too quickly. It is not caused by how long you were underwater as you had claimed.
Decompression sickness is caused when the pressure difference between nitrogen disolved in your body, and the ambient pressure of nitrogen is too high, causing bubbles to form. Hence both how long you stay underwater, and how fast you go up have an effect. Depth will of course also have a huge effect.
Bends can be induced even if you are under water, say 60 ft, for one single minute and then shot up too quickly. This is why the recommend ascent rate is less than 1 ft per minute followed by one or more safety stops at 15 ft.
If you shoot up, you're probably more at risk of an air embolism, but yes decompression sickness is still at risk. On the other hand, going up too slowly can also be a problem, as some of your tissue groups will still be absorbing nitrogen while you are going up. This will be a problem with your "slow" tissue groups, ie those that absorb nitrogen slowly, and haven't yet reached saturation when you start ascending.
Even if you are tank is empty and you had to ascend rapidly (forgetting for a second that you should be diving with a buddy), it is recommended to keep your regulator in your mouth because the remaining little air in your tank will expand as well and give you one last breath. In a sense, this is not too different from the Scubadoo's head of air bubble.
Aaargh! Why do people say that? The air in your tank won't expand. The only reason you'll get a few more breaths of air, is because the ambient pressure will drop below that of the tank allowing you to actually breathe it. This will only work if you've actually used up all your air, as chances are that if you've had a catastrophic failure of your SCUBA, the air that's left will have completly escaped. The only bits of air that will expand will be those that are at ambient pressure, ie, the stuff that's inside you.
Lastly, while a pulmonary barotrauma (burst lung) is possible, it is extremely rare.
That's correct! What's more likely to happen is that your lungs will sort of hold (well at least they won't burst), but air will be pushed out of them into your blood vessels. This is a good way to get a bubble of air into your brain which is a good way to kill yourself.
After all that, I still agree with your statement that scuba is much safer than a ScubaDoo user...;-)
Alternatively, put the top of the mouth piece against your upper lip, make sure the mouth piece is pointing down, press the purge button, and puke to your heart's contents. You won't get puke into your reg, and you won't have problems when you have that sudden need to inhale after you puke. As a bonus, you still get to see to fish, and your reg stays clean. Or just use your alternate...;-)
A premier in Australia usually refers to a state prime minister rather than the federal one. We still use it, but it means something slightly different.
Unknown means they are running popcon from woody, rather than sarge/sid. The older version of popcon did not send architecture data, while the newer one does.
It's actually in the non-free archive, which means that it's not part of Debian. This is not necessarily a bad thing, but it means that it won't be auto-built on other architectures than the one the maintainer uploaded it in, unless a Debian Developer takes the effort to do it.
What about the stuff in non-free which isn't actually software? There is some documentation in there as well, for example the RFCs. In addition, it looks like the GFDLed documentation will be moved to non-free eventually. If this measure passes, we would loose that as well.
That's really clever considering that the GFDL licensed documentation from a number of GNU projects looks like it's going to end up in non-free due to its restrictive license.
A bigger problem would be that RMS and Debian disagree on what free is. For example, things licensed under the GFDL will end up in non-free because of the restrictive license.
Actually, the majority of software in the non-free archive actually has source code available. There are things like povray which comes with source code but cannot be sold.
This message is not on the archive, as the archive is not currently being updated (It lives on master). You can get a copy of the announcent on other archives of debian mailing lists such as gmane's.
If you got decompression sickness using a dive table, would you advocate that those responsible for making them should be thrown in jail too?
Dive tables are a mathematical model, just as computers are. They measure what you probably have in your body, but do not guarantee that you will not get bent. Every time you dive, you're taking a risk, and there is a possibility you will get bent.
Narcosis at 20m is certainly possible, it's just usually mild... It will probably not be strong enough to make you want to give your regulator to a fish, but your brain will not be working at full speed, and it will take you more work to do things which are simple at the surface.
No it doesn't. A computer maximises bottom time, by calculating how much nitrogen is going in and out of different ``tissue groups'' in your body, and calculating how saturated those tissue groups are.
When you reach a certain level of saturation, the computer has calculated that if you take any more nitrogen in, you will not be able to outgas it safely in time, if you ascend at a normal speed, hence giving you a decompression stop.
The few computers that do use air consumption in their calculations, only use it to make the model more concervative when your air consumption is going up (ie, a sign of stress).
Slashdot Mirror
My Australian paypass card works fine in the US at the (very) few shops which have the logo.
It's obviously pretty rare because you sometimes have to convince the cashier to look at the little screen and see that it says approved.
While I agree that you shouldn't send a bounce for spam messages after you have accepted it, there's still a nice way of doing this. Simply reject the message before you've accepted delivery. You'll provide useful feedback to false positives and you won't get bounce backs to random addresses.
Conroy is a senator. His electorate is the whole of Victoria.
Since almost everyone votes for the party (above the line) there are two possibilities that will result in him loosing his seat: a) he's moved from his current top position in the labor list to #3 or #4. It's still possible for him to get elected again if he's at #3 but unlikely. He's currently one of the leaders of the Labor Right faction in the Labor party, so even going from #1 to #2 position is unlikely.
b) is for Labor to get less than 1/6 of the vote in Victoria and then still not get anywhere with preferences which is quite unlikely.
Fake!
Brian Kernighan would have checked the return value of that printf.
Also, the code isn't checking the printf return value; if it did manage to fail, you wouldn't know about it. ;-)
Of course, figuring out how to tell the user that printf failed can be a little harder.
Smoking in one of these sounds like a really really stupid thing to do. It seems the dome where your head sits is at ambient pressure. If you're breathing compressed air, that means that at 10m, the partial pressure is 0.42atm. Sounds like a great way to have a nice big flash when you light that cigarette! ;-)
I believe there's annecdoctal evidence that the speed at which you increase this pressure has an effect, but I have never seen/heard of any studies on this. It certainly seems to match my experience though. Descending slower seems to not cause as much nitrogen narcosis as descending like a lead weight
Lungs won't really blow up though, you'll usually get something called a lung over-expension injury which is a nice way of saying you've stretched your lungs past their design capacity.
Unfortunately for you as well, the path of least resistance when you decide to hold your breath is not through your mouth/nose, but into your blood vessels, which has the problem of introducing air into your veins. This can be pretty nasty if one goes towards your head.
The other problem with helium is that it is nowhere near as forgiving as nitrogen, due to how fast it enters and leaves your system. I've heard too many tales of bent divers from a day where the swell made it too hard to hold a decompression stop. As many things in diving, it's all about the trade-off, and what you're willing to do.
Decompression sickness is caused when the pressure difference between nitrogen disolved in your body, and the ambient pressure of nitrogen is too high, causing bubbles to form. Hence both how long you stay underwater, and how fast you go up have an effect. Depth will of course also have a huge effect.
Bends can be induced even if you are under water, say 60 ft, for one single minute and then shot up too quickly. This is why the recommend ascent rate is less than 1 ft per minute followed by one or more safety stops at 15 ft.
If you shoot up, you're probably more at risk of an air embolism, but yes decompression sickness is still at risk. On the other hand, going up too slowly can also be a problem, as some of your tissue groups will still be absorbing nitrogen while you are going up. This will be a problem with your "slow" tissue groups, ie those that absorb nitrogen slowly, and haven't yet reached saturation when you start ascending.
Even if you are tank is empty and you had to ascend rapidly (forgetting for a second that you should be diving with a buddy), it is recommended to keep your regulator in your mouth because the remaining little air in your tank will expand as well and give you one last breath. In a sense, this is not too different from the Scubadoo's head of air bubble.
Aaargh! Why do people say that? The air in your tank won't expand. The only reason you'll get a few more breaths of air, is because the ambient pressure will drop below that of the tank allowing you to actually breathe it. This will only work if you've actually used up all your air, as chances are that if you've had a catastrophic failure of your SCUBA, the air that's left will have completly escaped. The only bits of air that will expand will be those that are at ambient pressure, ie, the stuff that's inside you.
Lastly, while a pulmonary barotrauma (burst lung) is possible, it is extremely rare.
That's correct! What's more likely to happen is that your lungs will sort of hold (well at least they won't burst), but air will be pushed out of them into your blood vessels. This is a good way to get a bubble of air into your brain which is a good way to kill yourself.
After all that, I still agree with your statement that scuba is much safer than a ScubaDoo user...
Alternatively, put the top of the mouth piece against your upper lip, make sure the mouth piece is pointing down, press the purge button, and puke to your heart's contents. You won't get puke into your reg, and you won't have problems when you have that sudden need to inhale after you puke. As a bonus, you still get to see to fish, and your reg stays clean. Or just use your alternate... ;-)
A premier in Australia usually refers to a state prime minister rather than the federal one. We still use it, but it means something slightly different.
Unknown means they are running popcon from woody, rather than sarge/sid. The older version of popcon did not send architecture data, while the newer one does.
It's actually in the non-free archive, which means that it's not part of Debian. This is not necessarily a bad thing, but it means that it won't be auto-built on other architectures than the one the maintainer uploaded it in, unless a Debian Developer takes the effort to do it.
What about the stuff in non-free which isn't actually software? There is some documentation in there as well, for example the RFCs. In addition, it looks like the GFDLed documentation will be moved to non-free eventually. If this measure passes, we would loose that as well.
That's really clever considering that the GFDL licensed documentation from a number of GNU projects looks like it's going to end up in non-free due to its restrictive license.
A bigger problem would be that RMS and Debian disagree on what free is. For example, things licensed under the GFDL will end up in non-free because of the restrictive license.
Which is a rather bad name for the program as Debian and RMS disagree on what should be in non-free.
Actually, the majority of software in the non-free archive actually has source code available. There are things like povray which comes with source code but cannot be sold.
Well someone's leaked all the source code out now!
But when the three other random posters are debian devels... ;-)
Except that anonymous coward person. I've never seen *him* in the keyring...
This message is not on the archive, as the archive is not currently being updated (It lives on master). You can get a copy of the announcent on other archives of debian mailing lists such as gmane's.
If you got decompression sickness using a dive table, would you advocate that those responsible for making them should be thrown in jail too?
Dive tables are a mathematical model, just as computers are. They measure what you probably have in your body, but do not guarantee that you will not get bent. Every time you dive, you're taking a risk, and there is a possibility you will get bent.
Narcosis at 20m is certainly possible, it's just usually mild... It will probably not be strong enough to make you want to give your regulator to a fish, but your brain will not be working at full speed, and it will take you more work to do things which are simple at the surface.
No it doesn't. A computer maximises bottom time, by calculating how much nitrogen is going in and out of different ``tissue groups'' in your body, and calculating how saturated those tissue groups are.
When you reach a certain level of saturation, the computer has calculated that if you take any more nitrogen in, you will not be able to outgas it safely in time, if you ascend at a normal speed, hence giving you a decompression stop.
The few computers that do use air consumption in their calculations, only use it to make the model more concervative when your air consumption is going up (ie, a sign of stress).