Air bags reduce serious injuries and deaths even when wearing seat belts. They do however increase the number of minor none life threatening injuries.
What would you prefer, a bruise from an air bag deployment in a low speed impact where a seat belt would do fine, or being dead?
Note that in europe air bags deploy with less force than in the USA because wearing of seat belts is mandatory (in general) and they therefore cause less injuries.
My sister at the age of seven had a *VERY* nasty electrical shock with a toy cutlery set, and a three way adapter. It was in the days before the sheaving of the live and neutral pins so could not happen today, but basically a knife shorted out live to earth. It was also in the days before RCD's so the fact she is still alive today is shear good fortune.
At which point a fuse in the appliance is not going to provide any protection for the cable supplying the appliance.
The primary purpose of the fuse in the plug is to prevent overheating of the appliances cable should a fault develop in the cable that does not draw enough current to trip the main breaker for the circuit but is more than the cable can handle.
Indeed we use something called ring circuits basically out the consumer unit/fuse box around the house and back in, using 2.5mm cable and the circuit protected by a 32A breaker. They where a product of the price and scarcity of copper after the second world war.
Given the issues with copper availability long term, still a good idea.
The 240V (though in my house it is a very steady 230V) is also from an environmental perspective a good idea too.
Funny, we have better life expectancy and better health outcomes. Heck even the lowest socioeconomic group in the UK has better health outcomes than the highest socioeconomic group in the USA. So statistically you will live longer and be healthier while you do so should you live in the UK compared to the USA.
But hay don't let facts get in the way, and remember that Stephen Hawkins would have been put to death by the NHS...
No, a short in the appliance flex/cable could draw say 10A on a 3A rated cable, and the fuse/breaker for the circuit is going to be at a higher rating still say 15A (in the UK for a ring main it will be 32A) and will never blow/trip. Meanwhile the appliance cable heats up merrily and starts a fire.
It is a real issue in the UK with people fitting wrong sized fuses to devices (i.e. fitting a 13A fuse to a device that should be rated at 3A for example), so I simply don't believe that fires are not caused by overheating appliance flexes in other countries.
Wrong, the fuse in the plug is to protect the wire from the plug to the appliance from overheating and fire in the event of a short. A fuse in the appliance itself is of no use in this regards if the fault develops in the cable itself.
This is one of the reasons why the British system is unquestionably, electrically the safest system in the world at the moment.
Whether it is the *best* is another question entirely.
So every device you plug into an outlet has a cable rated the same as the fuse/breaker at the consumer unit/fuse box/distribution board?
The scenario is the 3A rated cable in the cord to say a lamp develops a short and starts drawing 10A continuously. Without a fuse in the plug you have a fire on your hands.
Depends on the socket. The MK Logic Plus sockets in my house require depression from all three pins of a UK BS1363 plug simultaneously. Trying to do that with something other than a plug is next to impossible.
The fact remains is that the combination of shuttered outlets, fuses in the plug, and sheaved live and neutral pins make the UK BS1363 plug/socket combination electrically the safest in the world.
Whether that makes them the best is another matter entirely.
Perhaps for performance he needs 15k RPM SAS/FC disks, and given he only needs 300GB (which could be done from a single disk RAID1), a whole 1TB of fast disks is a huge waste of money.
Of course for an 18% de-dupe saving on a NetApp you could have brought random other enterprise storage, not bothered with the dedupe and still saved shed loads of cash.
Well perhaps not random other enterprise storage, but there are certainly cheaper options.
Not true, if the theory requires that they would be separated by say 900 seconds, they left within 2.2 seconds of one another maximum, and we observe them at 0.9 seconds apart, then the theory is proved wrong.
Actually electric engines are very efficient, even a simple one is over 80% efficient.
However the laws of thermodynamics do apply, and you can never recover 100% of the energy in regenerative breaking.
Put another way everything you do causes entropy to increase, and 100% efficient regenerative breaking would require no entropy change, and this is not possible.
Your analysis is flawed in two respects. First the purchase price of a CFL does not accurately reflect the energy used to make it. Almost all CFL are made in China, which is particularly poor in terms of energy efficiency in manufacture and has a poor environmental record in manufacturing, especially for CFL's. You also need to remember that it is the amount of CO2 produced that is important.
Secondly depending where you live, and whether you have thermostatically controlled central heating your energy saving will be considerably less if anything, because the central heating will just have been working harder.
Where I live in Scotland this is second issue is very significant. I only turn lights on when it is dark. During the summer it does not get dark to late, and I hardly use lights. However during winter it gets dark earlier and I use lights a lot. However it is also colder and I have my thermostatically controlled central heating on as well. If I switch to CFL's all that will happen is my central heating will make up the short fall in heat by working harder. It is also complicated by the fact that a significant proportion of electricity in Scotland comes from CO2 neutral sources for example hydro provides a bit over 20% of all electricity in Scotland.
CFL's are indisputably cheaper over the life cycle. However it is *FAR* from clear that they are the environmentally better option. Remember there are *NO* zero cost options.
I am not sure that your analysis of the binary RPC version of MAPI being replaced is actually accurate.
However it the binary RPC version of MAPI and the related binary RPC Exchange-Exchange interface has been reverse engineered on more than one occasions now, with the OpenChange project providing public documentation and a reference library implementation.
In addition to that, I believe that the protocols are documented under the E.U. mandated API documentation settlement.
I would add that LTO3 and LTO4 have WORM cartridges as well.
I would also add that DLT-S4 and LTO-4 have adaptive tape speed, so that the speed of the tape is changed to match the incoming data rate to prevent "shoe-shining". Even at enterprise levels keeping the tape drives in my tape library streaming at full speed is difficult. I have six LTO4's in a library, and that requires 720MB/s of throughput to keep them happy. Even 8Gbps FC would struggle to keep up with that.
Except there is now LTO4 with double capacity at the same price per media.
The cheapest scalable storage is by far tape. Sure you can by 1TB disks cheaply, but it does not scale. When I need to store 1PB of data the costs of the disks goes up enormously. There is also the cost of the power required to run them. My tapes consume 0W when not being used. I can run a couple of PB of storage with a 1kW of power and as the power consumption is so low there is no requirement for air conditioning (well at least where I live).
Sticking another frame on my 3854 library and filling it with LTO4 tapes is orders of magnitude cheaper than buying the same amount of disk in a usable form from anyone else.
Slashdot Mirror
Air bags reduce serious injuries and deaths even when wearing seat belts. They do however increase the number of minor none life threatening injuries.
What would you prefer, a bruise from an air bag deployment in a low speed impact where a seat belt would do fine, or being dead?
Note that in europe air bags deploy with less force than in the USA because wearing of seat belts is mandatory (in general) and they therefore cause less injuries.
Shuttered outlets have been part of BS1363 from day one.
Sleeving on the live and neutral pins did not become mandatory till the late 1980's, though MK plugs have been sleeved for much longer.
A small child could happily electrocute themselves from a partially inserted US plug.
It is in the region of 700-800 deaths a year total in the UK from electrical problems. That is from electrocution to house fires.
My sister at the age of seven had a *VERY* nasty electrical shock with a toy cutlery set, and a three way adapter. It was in the days before the sheaving of the live and neutral pins so could not happen today, but basically a knife shorted out live to earth. It was also in the days before RCD's so the fact she is still alive today is shear good fortune.
At which point a fuse in the appliance is not going to provide any protection for the cable supplying the appliance.
The primary purpose of the fuse in the plug is to prevent overheating of the appliances cable should a fault develop in the cable that does not draw enough current to trip the main breaker for the circuit but is more than the cable can handle.
Indeed we use something called ring circuits basically out the consumer unit/fuse box around the house and back in, using 2.5mm cable and the circuit protected by a 32A breaker. They where a product of the price and scarcity of copper after the second world war.
Given the issues with copper availability long term, still a good idea.
The 240V (though in my house it is a very steady 230V) is also from an environmental perspective a good idea too.
Funny, we have better life expectancy and better health outcomes. Heck even the lowest socioeconomic group in the UK has better health outcomes than the highest socioeconomic group in the USA. So statistically you will live longer and be healthier while you do so should you live in the UK compared to the USA.
But hay don't let facts get in the way, and remember that Stephen Hawkins would have been put to death by the NHS...
In terms of electrical safety the British BS1363 plug/socket system is the safest in the world.
Whether this makes it the *best* is a different matter. They are for example far bigger than needed for the vast majority of appliances.
No, a short in the appliance flex/cable could draw say 10A on a 3A rated cable, and the fuse/breaker for the circuit is going to be at a higher rating still say 15A (in the UK for a ring main it will be 32A) and will never blow/trip. Meanwhile the appliance cable heats up merrily and starts a fire.
It is a real issue in the UK with people fitting wrong sized fuses to devices (i.e. fitting a 13A fuse to a device that should be rated at 3A for example), so I simply don't believe that fires are not caused by overheating appliance flexes in other countries.
Wrong, the fuse in the plug is to protect the wire from the plug to the appliance from overheating and fire in the event of a short. A fuse in the appliance itself is of no use in this regards if the fault develops in the cable itself.
This is one of the reasons why the British system is unquestionably, electrically the safest system in the world at the moment.
Whether it is the *best* is another question entirely.
So every device you plug into an outlet has a cable rated the same as the fuse/breaker at the consumer unit/fuse box/distribution board?
The scenario is the 3A rated cable in the cord to say a lamp develops a short and starts drawing 10A continuously. Without a fuse in the plug you have a fire on your hands.
Depends on the socket. The MK Logic Plus sockets in my house require depression from all three pins of a UK BS1363 plug simultaneously. Trying to do that with something other than a plug is next to impossible.
The fact remains is that the combination of shuttered outlets, fuses in the plug, and sheaved live and neutral pins make the UK BS1363 plug/socket combination electrically the safest in the world.
Whether that makes them the best is another matter entirely.
Perhaps for performance he needs 15k RPM SAS/FC disks, and given he only needs 300GB (which could be done from a single disk RAID1), a whole 1TB of fast disks is a huge waste of money.
Nope IBM's GPFS would have handled that fine. Add in a new NSD and then take the old one out and waiting a while.
You also get a whole bunch of other features that ZFS does not have as well.
Works fine on IBM's GPFS file system, I can shrink it just fine while it's mounted and in use.
Of course for an 18% de-dupe saving on a NetApp you could have brought random other enterprise storage, not bothered with the dedupe and still saved shed loads of cash.
Well perhaps not random other enterprise storage, but there are certainly cheaper options.
Not true, if the theory requires that they would be separated by say 900 seconds, they left within 2.2 seconds of one another maximum, and we observe them at 0.9 seconds apart, then the theory is proved wrong.
Depends 15 EUR is a lot less an a MiFi
Actually electric engines are very efficient, even a simple one is over 80% efficient.
However the laws of thermodynamics do apply, and you can never recover 100% of the energy in regenerative breaking.
Put another way everything you do causes entropy to increase, and 100% efficient regenerative breaking would require no entropy change, and this is not possible.
Your analysis is flawed in two respects. First the purchase price of a CFL does not accurately reflect the energy used to make it. Almost all CFL are made in China, which is particularly poor in terms of energy efficiency in manufacture and has a poor environmental record in manufacturing, especially for CFL's. You also need to remember that it is the amount of CO2 produced that is important.
Secondly depending where you live, and whether you have thermostatically controlled central heating your energy saving will be considerably less if anything, because the central heating will just have been working harder.
Where I live in Scotland this is second issue is very significant. I only turn lights on when it is dark. During the summer it does not get dark to late, and I hardly use lights. However during winter it gets dark earlier and I use lights a lot. However it is also colder and I have my thermostatically controlled central heating on as well. If I switch to CFL's all that will happen is my central heating will make up the short fall in heat by working harder. It is also complicated by the fact that a significant proportion of electricity in Scotland comes from CO2 neutral sources for example hydro provides a bit over 20% of all electricity in Scotland.
CFL's are indisputably cheaper over the life cycle. However it is *FAR* from clear that they are the environmentally better option. Remember there are *NO* zero cost options.
Indeed, the new Dell M610's in my blade centre have EFI, perhaps I should try installing Snow Leopard and see if it works
I am not sure that your analysis of the binary RPC version of MAPI being replaced is actually accurate.
However it the binary RPC version of MAPI and the related binary RPC Exchange-Exchange interface has been reverse engineered on more than one occasions now, with the OpenChange project providing public documentation and a reference library implementation.
In addition to that, I believe that the protocols are documented under the E.U. mandated API documentation settlement.
I would add that LTO3 and LTO4 have WORM cartridges as well.
I would also add that DLT-S4 and LTO-4 have adaptive tape speed, so that the speed of the tape is changed to match the incoming data rate to prevent "shoe-shining". Even at enterprise levels keeping the tape drives in my tape library streaming at full speed is difficult. I have six LTO4's in a library, and that requires 720MB/s of throughput to keep them happy. Even 8Gbps FC would struggle to keep up with that.
Except there is now LTO4 with double capacity at the same price per media.
The cheapest scalable storage is by far tape. Sure you can by 1TB disks cheaply, but it does not scale. When I need to store 1PB of data the costs of the disks goes up enormously. There is also the cost of the power required to run them. My tapes consume 0W when not being used. I can run a couple of PB of storage with a 1kW of power and as the power consumption is so low there is no requirement for air conditioning (well at least where I live).
Sticking another frame on my 3854 library and filling it with LTO4 tapes is orders of magnitude cheaper than buying the same amount of disk in a usable form from anyone else.