Here is an analogy
on
MRAM in 2004?
·
· Score: 2, Informative
When you burn a cd does ambient light destroy the medium? No. Just like a strong enough light source (for example, the burning laser in your xDRW drive) could destroy or alter the data on it.
There is not going to be a strong enough field to do this accidentally, the fields put off by electronics are too small to be of much concern. If there even was a problem, parity algorythms could be used the same way they are in larger magnetic media (RAID).
It is certain that a stong enough magnetic field could depolarize the data but I doubt the field is that "loose". Furthermore a magnetic field is inversly proportional to the square of the distance to the source ( E~1/[R^2] ) which decays rather rapidly as the distance increases. Electronic devices may operate at a high frequency but the power (amplitude)is too low to low to generate the field that would be required.
Electic/Magnetic Field Equations
It seems that most governments are realizing how important control of there own satellite based telecommunications/spying/surveilence, etc., has become.
And you have to be authorized (i.e. electrician) to do this. After the power is turned off at the pole, you can replace the box with something a little more modern. If you are so inclined, you can get breakers/breaker boxes/wiring at home depot or equivalent.
There may be local/state laws or codes against doing the wiring yourself. I don't think there are any such laws where I live (Mississippi).
I hope when this mess if finished the SEC will take a good look at who is profiting heavily off SCO stock. I doubt their execs would be above doing so if they thought they could concel it or, more likely, if they simply thought they wouldn't get any jail time.
I seriously doubt anyone caved in. At this point it would be silly to do so. IBM and Redhat are countersuing SCO. I think that any of the corporate types would realize that they can wait until these lawsuits progress before that have to pay anything. Most likely, the company got the licenses for next to nothing and it is in a position to benefit if SCO gets what it wants in the end.
-
How about pictures or video of a demonstation?
on
Zero Blaster Reviewed
·
· Score: 1
There are many pictures of the actual device, but where are the pictures of operation?
So by your logic, if some network administrator knew that any illegal activity was going on, they would have to shutdown the entire network? There are usually far too many students or employees to be able to afford policing all the traffic (nevermind the privacy issues).
Furthermore, it is not a crime to install or run a p2p app. It is only a crime to knowingly engage in copyright infringement. Do you think your average kazaa (not slashdot) user knows how to turn off uploads or even know that they are allowing uploads at all?
I had my account number stolen after buying computer equipment from small online stores (pricewatch). After having to change my account number I started using disposable credit card numbers from American Express. These numbers can only be used once and expire at the end of the month. Also, if someone were able to crack the Amex system, at least I will be notified. I was not so lucky before. If you are really paranoid, I imagine that you can call and get these numbers over the phone as well.
Does anyone remember the dual-ppc that the BeOS people were originally selling? Anyway, you could turn off one of the processors but if you wanted to, you could turn them both off. I think they evenrtually removed this feature. =)
Well, that depends on the antenna that is used. There is nothing inherent in the frequency or modulation that limits the signal propagation. If a direction antenna is used, then yes the signal will propogate much further in the orientated direction. With a linear antenna, like the small ones on most cheap 802.11 transmitters (or your 2.4ghz phone for that matter)the signal pattern of the antennae is more evenly distributed in each direction.
You can use the transistors as current ampifiers and create a sort of preamp. You could pass the signal to the output(s) desired and simply use voltages from the paralled port to control the switching.
Of course you couldn't have differn't things playing at the same time but I think this is what the original poster had in mind.
Does anyone else see a potential problem with getting x-rayed multiple times everytime they fly? They already have the 'x-ray vision' type scanners for luggage. I thought the reason they weren't using thaton people was for health purposes. Is there any reason why this way is safer then conventional methods?
If you are working differential equations then you are using calculus. How are you going to write the differential equation for, say, an RLC circuit if you don't use any calculus? I guess you could just memorize ic=dvc/dt and vl=dil/dt, and the form of the various solutions, but even then you would still be using calculus, if not making it more complicated then it should be.
Do you have to take any field theory or electromagnetics classes? At my school, it is essentially applied calculus; vector calculus, double and triple integrals, etc. I really don't see anyway around having to integrate to get the total Q of a source or taking the gradient (partial derivates) to get the potential at a point from an electic field in 3d space.
In most of my EE classes I have used calculus on a daily basis. If you are simply relying on known solution for DEs and equations I think you are limiting your knowledge and cheating yourself out of a solid understanding of what is going on.
I had a similar problem with several $9.95 charges appearing on my bill from various national ISPs every month. I am about 95% certain that my number was abused by some random pricewatch vendor. Anyway, upon calling earthlink to cancel the service that I never signed up for, the person on the otherside of the phone line informed me, "I'm sorry I can't cancel your service, your name is not in our database." After alot of trouble and having to refuse to give them my SSN I was able to cancel the service.
Anway, back to my point. I found a solution to this problem, American Express have a service called Private Payments that allows you to get disposable numbers that only work once. Since I have been using this service I haven't had problems with my number being stolen. Also, since American Express allows you to dispute charges without paying for them unless you loose the dispute, I never had to pay any of the $9.95 charges.
Back on topic, as IP telephony becomes more widely used, encryption is going to be a neccessity. When people buy things and give credit card numbers over the Internet conversation, encryption will be the only protection against crackers intercepting the conversation and stealing numbers. When was the last time you ordered anything from a site that wasn't using SSL?
Slashdot Mirror
When you burn a cd does ambient light destroy the medium? No. Just like a strong enough light source (for example, the burning laser in your xDRW drive) could destroy or alter the data on it. There is not going to be a strong enough field to do this accidentally, the fields put off by electronics are too small to be of much concern. If there even was a problem, parity algorythms could be used the same way they are in larger magnetic media (RAID). It is certain that a stong enough magnetic field could depolarize the data but I doubt the field is that "loose". Furthermore a magnetic field is inversly proportional to the square of the distance to the source ( E~1/[R^2] ) which decays rather rapidly as the distance increases. Electronic devices may operate at a high frequency but the power (amplitude)is too low to low to generate the field that would be required. Electic/Magnetic Field Equations
1.49999999999?
-
And you have to be authorized (i.e. electrician) to do this. After the power is turned off at the pole, you can replace the box with something a little more modern. If you are so inclined, you can get breakers/breaker boxes/wiring at home depot or equivalent.
There may be local/state laws or codes against doing the wiring yourself. I don't think there are any such laws where I live (Mississippi).
-
Ununnilium isn't good enough for them? Sir Ununnil must be rolling over in his grave.
--
-
I hope when this mess if finished the SEC will take a good look at who is profiting heavily off SCO stock. I doubt their execs would be above doing so if they thought they could concel it or, more likely, if they simply thought they wouldn't get any jail time.
-
I seriously doubt anyone caved in. At this point it would be silly to do so. IBM and Redhat are countersuing SCO. I think that any of the corporate types would realize that they can wait until these lawsuits progress before that have to pay anything. Most likely, the company got the licenses for next to nothing and it is in a position to benefit if SCO gets what it wants in the end.
-
There are many pictures of the actual device, but where are the pictures of operation?
-
How long before the execs realize their game is up and sell?
-
Also, what do you think the implications would be for microsoft to license?
-
So by your logic, if some network administrator knew that any illegal activity was going on, they would have to shutdown the entire network? There are usually far too many students or employees to be able to afford policing all the traffic (nevermind the privacy issues).
Furthermore, it is not a crime to install or run a p2p app. It is only a crime to knowingly engage in copyright infringement. Do you think your average kazaa (not slashdot) user knows how to turn off uploads or even know that they are allowing uploads at all?
The French government can pick what they wish but the populus will get the final say.
Does anyone remember the dual-ppc that the BeOS people were originally selling? Anyway, you could turn off one of the processors but if you wanted to, you could turn them both off. I think they evenrtually removed this feature. =)
-
Well, that depends on the antenna that is used. There is nothing inherent in the frequency or modulation that limits the signal propagation. If a direction antenna is used, then yes the signal will propogate much further in the orientated direction. With a linear antenna, like the small ones on most cheap 802.11 transmitters (or your 2.4ghz phone for that matter)the signal pattern of the antennae is more evenly distributed in each direction.
You can use the transistors as current ampifiers and create a sort of preamp. You could pass the signal to the output(s) desired and simply use voltages from the paralled port to control the switching.
Of course you couldn't have differn't things playing at the same time but I think this is what the original poster had in mind.
Does anyone else see a potential problem with getting x-rayed multiple times everytime they fly?
They already have the 'x-ray vision' type scanners for luggage. I thought the reason they weren't using thaton people was for health purposes. Is there any reason why this way is safer then conventional methods?
_
If you are working differential equations then you are using calculus. How are you going to write the differential equation for, say, an RLC circuit if you don't use any calculus? I guess you could just memorize ic=dvc/dt and vl=dil/dt, and the form of the various solutions, but even then you would still be using calculus, if not making it more complicated then it should be.
Do you have to take any field theory or electromagnetics classes? At my school, it is essentially applied calculus; vector calculus, double and triple integrals, etc. I really don't see anyway around having to integrate to get the total Q of a source or taking the gradient (partial derivates) to get the potential at a point from an electic field in 3d space.
In most of my EE classes I have used calculus on a daily basis. If you are simply relying on known solution for DEs and equations I think you are limiting your knowledge and cheating yourself out of a solid understanding of what is going on.
--
Maybe in a few more years: cell phone guns
Anway, back to my point. I found a solution to this problem, American Express have a service called Private Payments that allows you to get disposable numbers that only work once. Since I have been using this service I haven't had problems with my number being stolen. Also, since American Express allows you to dispute charges without paying for them unless you loose the dispute, I never had to pay any of the $9.95 charges.
Back on topic, as IP telephony becomes more widely used, encryption is going to be a neccessity. When people buy things and give credit card numbers over the Internet conversation, encryption will be the only protection against crackers intercepting the conversation and stealing numbers. When was the last time you ordered anything from a site that wasn't using SSL?
--
You reminded me of this old April Fools joke: http://www.jonnypage.ca/archives/000134.html --
What a great idea, just steal the stories from other sites! Oh wait.
--