WiFi, or any other radio does not work in salt water.
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1. Use an OTDR (optical time domain reflectometer). Basically send an optical pulse down the fiber, and wait for the refection at the break. Present a map with the break highlighted. Accuracy about 1 meter.
2. a) A fiber cable has the bandwidth of a million satellites, and ping time of 60ms vs 400ms
If you think a regular flight is boring, you have never been the pilot on a picture taking flight: 1. You fly straight (GPS and autopilot) for half an hour, then 2. turn around, and fly back. 3. Repeat this until the fuel is used up. 4. Refuel and repeat.
The only fun thing to do is when you turn: with the google photographer on his stomach with the camera, you do a Chandelle or Wing-over http://en.wikipedia.org/wiki/Aerobatic_maneuver This gives you a few seconds of weightlessness, and with the photographer in the back now floating in the cabin, he smacks on the floor with an "ooommpf" when gravity is reapplied.
The first few times he complains, but you just tell him you have to do this to properly align the aircraft for the reverse leg of the flight pattern. So the routine for the photographer is something like: 1. click, click, click, click, click, click, click, click, click, click 2. "Whoooooooooo, ooommpf" (I wonder if he reads this?)
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The current law in Norway is pretty reasonable: 1. Download all you want legally 2. Break any copy protection on your own stuff (DVD-Jon won in supreme court) 3. Share what you own with your friends.
There must be some error in TFA. Looks like it was written by someone with little understanding. To cool a 1g item under 1K is trivial. You can buy coolers that can keep large volumes way down in the mK range. Commercial literature give numbers like 1mW cooling at 35mK.
TFA says that the purpose of cooling was to "...cancel the natural forces entirely, so quantum forces apply exclusively."
That is of course incorrect. Quantum mechanics *are* the natural forces(,excluding gravity?), and cooling is often used to bring matter to the ground state or similar, so quantum effects take on macroscopic and often more observable (and intriguing) properties.
If there is a real breakthrough here, does anyone have the original scientific reference?
Here is the important question: If you were the implementer of AACS on HD player SW, how would you hide the key? I can think of a few ways: 1. Keep the data in CPU registers and cache. 2. Split the keys up into smaller pieces, and spread them around when in memory.
It seems that both is basically security through obscurity, and that has not worked very well in the future.
If you respond to this with a clever way to do this, make sure you post the reason it will not stand up to hackers as well. Otherwise, keep it to yourself;)
TFA is way off on the performance of the human eye, and you can check this easily yourself. I have 40/20 vision, and have a 10G pix camera with a 3x zoom. Even all zoomed out, and only covering 10 degrees, it is still under performing my eye in resolution, and the limit is clearly pixel distance in arc-seconds.
(Look at a TV tower or antenna in the distance and then take a picture of it and compare)
My camera needs to be about 10M and 5x to be similar to my vision.
So to get it just as good as your eyes, 200Mpix to cover 45 degrees, or 2Gpix to cover a full view.
This is from empirical evidence. Just doing the math from the diameter of the pupil=5mm with 500nm (green)light, the eye has therefore a maximum resolution of 5mm/500nm=10000, so 180 degrees would be (10000pi)^2 or 1Gpix. (maybe the difference between these two calculations is the ability of the brain to "dither" as the focus moves, or that we have two eyes) 1080p is only 0.2% or so of this resolution.
Vision resolution is of course only this good in the center, and you compensate by moving the focus around the image to take it all in.
It would actually be nice to have technology that was better than my eye (like 10x binoculars) to get that would take 10^2x1Gpix or 100Gpix. That would allow me a full view, and ability to walk up to an area of interest to look closer.
Conclusion: Give me 1Gpix for each of my eyes, and the resolution is just good enough, but not great.
This is just an overall observation of the RIAA's/members strategy:
Sue and scare the filesharers *without* draining the RIAA finances with attorneys salaries. Basically beef up the legal department and keep it profitable.
With these marching orders, RIAA's chief counsel laid out the, now well known plan, to extort $3k-$4K with little effort, and use this revenue to fund the operation.
This plan has worked very well until now, but with a little resistance from the defendants it will fail, and it looks like that is finally happening.
The RIAA will therefore have to: 1. Stop suing file sharers 2. Find defendant with money that they can take to court and win >$100,000 from 3. Change strategy altogether (Watermarking, give up altogether etc.)
With electric cars, the h.p. rating it typically limited to overheating the motor. As opposed to a motor with brushes, a brushless motor can take as many amp as you will as long as it does not overheat. That means a lot if you only want to accelerate for a few seconds. The same goes for the control electronics and batteries.
So while you may have 600hp to accelerate, you may only have 50hp of continuous power. This may be exactly what you want in a car, but the term may be somewhat meaningless.
Instead of a gas engines power/torque curve vs rpm, a power curve vs time would give us this information.
I have in the previous post claimed that the FA is void of anything new and useful. This is my opinion, and apparently the opinion of most of/. readers. If you disagree with my position, post a reply as to why, and maybe you can convince me and others.
In any case is is certainly not off-topic.
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Automated post: FA void of anything new or useful
on
The Virtual Teacher
·
· Score: 3, Informative
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OK, OK, the fact of the matter is: 1. If you seed material critical of N.K., you will not get a phone call from RIAA, you will now get polonium in your tea. *but* 2. At the local niteclub in Pyongyang 1 Swedish krone will buy you the entire bar, and with another krone, you can rent the entire hotel you stay in. The girls are pretty, and you will be the hottest guy in town.
Elevators also have a safety mechanism. If the wires that hold it up breaks, sensed by measuring the tension in them going to zero, large spring loaded bolts will fire, and embed themselves in the concrete elevator shaft.
If you and your friends jump up and down, the elasticity of the cables will cause the whole car to bounce, and without warning the cable tension sensors will trigger the bolts to engage.
This will allow you to stop the elevator between floors and on "illegal floors". Just make sure you can get out, because it will take many hours before the elevator is operational.
At 160Gb/s, each bit is about 1mm long in the fiber. The dispersion of a fiber will smear away the eye in a kilometer. Using zero dispersion fiber causes problems with DWDM, so this may only be usable in a data center.
Since bundles 10Gb/s X 16 are available as single plug, there will be little practical difference for users unless it is cheaper than the 10Gb/s X 16 bundles.
The dinosaur in TFA, Oryctodromeus cubicularis, or "digging runner of the lair" may share some genes with the homo sapiens surviving this. This is probably office workers who work all hours and dont take much time outside. Maybe future archaeologists will name these new hominoids "homo cubicularis"
Slashdot Mirror
All the swiss people in Sweden will take offense of the mixup here.
Real property right only lasts until your ruler succumb to the new overlord so you *will* loose your real property.
The King of England once owned the land now called the US of A.
Intellectual property is harder to protect and defend, and stand to be lost easier.
What body should protect the copyright of Publius Vergilius Maro? The roman empire?
No law can change this.
WiFi, or any other radio does not work in salt water.
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I would like to buy music in mp3 format on a DVD. The DVDs titles should be:
1. All of rock
2. All classic
3. Top 1000 for 2007
and a few more. i would be happy to pay premium or $20 for it.
And when HD players become more common, I would buy buy the "Top 10,000 songs for 2009" disk as well.
no need to involve congress or to sue anybody here.
For how long should disney really have monopoly on Winnie the Pooh for example.
I think it is time that the copyrights from 1920 or so expire for the enjoyment of all.
1. Use an OTDR (optical time domain reflectometer). Basically send an optical pulse down the fiber, and wait for the refection at the break. Present a map with the break highlighted. Accuracy about 1 meter.
2. a) A fiber cable has the bandwidth of a million satellites, and ping time of 60ms vs 400ms
If you think a regular flight is boring, you have never been the pilot on a picture taking flight:
1. You fly straight (GPS and autopilot) for half an hour, then
2. turn around, and fly back.
3. Repeat this until the fuel is used up.
4. Refuel and repeat.
The only fun thing to do is when you turn: with the google photographer on his stomach with the camera, you do a Chandelle or Wing-over http://en.wikipedia.org/wiki/Aerobatic_maneuver This gives you a few seconds of weightlessness, and with the photographer in the back now floating in the cabin, he smacks on the floor with an "ooommpf" when gravity is reapplied.
The first few times he complains, but you just tell him you have to do this to properly align the aircraft for the reverse leg of the flight pattern.
So the routine for the photographer is something like:
1. click, click, click, click, click, click, click, click, click, click
2. "Whoooooooooo, ooommpf"
(I wonder if he reads this?)
This is an automated comment generated by a grease monkey script. If you agree that this is posted by a blog whore, or if you do not want to read any future articles with no useful or new content, you can gray out all Roland Piquepaille articles with this script:
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Enjoy!
The part that automatically posts this information is not included.
The current law in Norway is pretty reasonable:
1. Download all you want legally
2. Break any copy protection on your own stuff (DVD-Jon won in supreme court)
3. Share what you own with your friends.
Just dont sell copies for money.
Sony Electronics was a great company until the bought the movies division.
Now, Sony Electronics tries to deliver great products, and Sony Pictures strongarm the electronics division into delivering defective products.
Just stop buying Sony altogether (Movies and electronics) until they become a customer focussed company again.
In the end the blame goes to the stupid Sony customers that allows Sony to sell them this defective crap, and then comes back for more.
There must be some error in TFA. Looks like it was written by someone with little understanding. To cool a 1g item under 1K is trivial. You can buy coolers that can keep large volumes way down in the mK range. Commercial literature give numbers like 1mW cooling at 35mK.
TFA says that the purpose of cooling was to "...cancel the natural forces entirely, so quantum forces apply exclusively."
That is of course incorrect. Quantum mechanics *are* the natural forces(,excluding gravity?), and cooling is often used to bring matter to the ground state or similar, so quantum effects take on macroscopic and often more observable (and intriguing) properties.
If there is a real breakthrough here, does anyone have the original scientific reference?
Here is the important question:
;)
If you were the implementer of AACS on HD player SW, how would you hide the key? I can think of a few ways:
1. Keep the data in CPU registers and cache.
2. Split the keys up into smaller pieces, and spread them around when in memory.
It seems that both is basically security through obscurity, and that has not worked very well in the future.
If you respond to this with a clever way to do this, make sure you post the reason it will not stand up to hackers as well. Otherwise, keep it to yourself
In other news:
A professor in optical systems discover that a light bulb screwed into a socket starts to emit photons.
TFA is way off on the performance of the human eye, and you can check this easily yourself.
I have 40/20 vision, and have a 10G pix camera with a 3x zoom. Even all zoomed out, and only covering 10 degrees, it is still under performing my eye in resolution, and the limit is clearly pixel distance in arc-seconds.
(Look at a TV tower or antenna in the distance and then take a picture of it and compare)
My camera needs to be about 10M and 5x to be similar to my vision.
So to get it just as good as your eyes, 200Mpix to cover 45 degrees, or 2Gpix to cover a full view.
This is from empirical evidence. Just doing the math from the diameter of the pupil=5mm with 500nm (green)light, the eye has therefore a maximum resolution of 5mm/500nm=10000, so 180 degrees would be (10000pi)^2 or 1Gpix. (maybe the difference between these two calculations is the ability of the brain to "dither" as the focus moves, or that we have two eyes)
1080p is only 0.2% or so of this resolution.
Vision resolution is of course only this good in the center, and you compensate by moving the focus around the image to take it all in.
It would actually be nice to have technology that was better than my eye (like 10x binoculars) to get that would take 10^2x1Gpix or 100Gpix. That would allow me a full view, and ability to walk up to an area of interest to look closer.
Conclusion: Give me 1Gpix for each of my eyes, and the resolution is just good enough, but not great.
This is just an overall observation of the RIAA's/members strategy:
Sue and scare the filesharers *without* draining the RIAA finances with attorneys salaries. Basically beef up the legal department and keep it profitable.
With these marching orders, RIAA's chief counsel laid out the, now well known plan, to extort $3k-$4K with little effort, and use this revenue to fund the operation.
This plan has worked very well until now, but with a little resistance from the defendants it will fail, and it looks like that is finally happening.
The RIAA will therefore have to:
1. Stop suing file sharers
2. Find defendant with money that they can take to court and win >$100,000 from
3. Change strategy altogether (Watermarking, give up altogether etc.)
With electric cars, the h.p. rating it typically limited to overheating the motor. As opposed to a motor with brushes, a brushless motor can take as many amp as you will as long as it does not overheat. That means a lot if you only want to accelerate for a few seconds. The same goes for the control electronics and batteries.
So while you may have 600hp to accelerate, you may only have 50hp of continuous power. This may be exactly what you want in a car, but the term may be somewhat meaningless.
Instead of a gas engines power/torque curve vs rpm, a power curve vs time would give us this information.
I have in the previous post claimed that the FA is void of anything new and useful. This is my opinion, and apparently the opinion of most of /. readers. If you disagree with my position, post a reply as to why, and maybe you can convince me and others.
In any case is is certainly not off-topic.
Disclaimer: This comment is an automated comment generated by a grease monkey script.
If you agree that the FA is posted by a blog whore, or if you do not want to read any future articles with no useful or new content, you can gray out all Roland Piquepaille articles with this script:
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Enjoy!
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Enjoy!
The part that automatically posts this information is not included.
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Enjoy!
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Every time you buy an album or a movie through these big companies, your money will be used to sue you or your friends.
If you stop paying them they will fold with less collateral damage, and music will be free sooner.
...welcome the new north Korean overlords.
OK, OK, the fact of the matter is:
1. If you seed material critical of N.K., you will not get a phone call from RIAA, you will now get polonium in your tea.
*but*
2. At the local niteclub in Pyongyang 1 Swedish krone will buy you the entire bar, and with another krone, you can rent the entire hotel you stay in. The girls are pretty, and you will be the hottest guy in town.
Elevators also have a safety mechanism. If the wires that hold it up breaks, sensed by measuring the tension in them going to zero, large spring loaded bolts will fire, and embed themselves in the concrete elevator shaft.
If you and your friends jump up and down, the elasticity of the cables will cause the whole car to bounce, and without warning the cable tension sensors will trigger the bolts to engage.
This will allow you to stop the elevator between floors and on "illegal floors". Just make sure you can get out, because it will take many hours before the elevator is operational.
At 160Gb/s, each bit is about 1mm long in the fiber. The dispersion of a fiber will smear away the eye in a kilometer. Using zero dispersion fiber causes problems with DWDM, so this may only be usable in a data center.
Since bundles 10Gb/s X 16 are available as single plug, there will be little practical difference for users unless it is cheaper than the 10Gb/s X 16 bundles.
The dinosaur in TFA, Oryctodromeus cubicularis, or "digging runner of the lair" may share some genes with the homo sapiens surviving this. This is probably office workers who work all hours and dont take much time outside. Maybe future archaeologists will name these new hominoids "homo cubicularis"
Measure (This is actually short and readable. Maybe you will place it on the ballot in your county?)i nit.pdfs /local/news04.txt
http://www.co.missoula.mt.us/Election/Marijuana_I
Article
http://www.missoulian.com/articles/2007/03/24/new