Remember the Internet (capatial I) isn't the only internet out there.
Wow, so Bush was right. I was just not enlightened enough to see his wisdom, but I understand now! May I be worthy to receive more knowledge from our glorious government.
Reminds me of a joke when three secret agents from USA, UK, and Russia were called in to examine a newly discovered Egyptian pyramid, and determine the age of a mummy. The USA and UK guys spend half a day inside with no results, while the Russian comes out within a half hour and says: "9341 years old." "How did you figure it out?" "She confessed everything!"
They should be forced to change it because some college student doesn't understand that "Marketing are good" isn't grammatically correct?
Interesting point there-- is that phrase really gramatically incorrect? What if I was writing a story about a race of aliens called "Marketing" and tried to describe them? It seems that writing a 100% correct checker is so dependent on understanding and context that it's pretty much impossible.
The social security number in the US is like a true name: whoever knows it wields power over the person. In particular, they can mess up one's credit history, which is a big deal when trying to get loans, mortgages, etc.
I was at the cashier in a bookstore, about to pay for a couple of books. The clerk didn't want to take my unsigned credit card, and handed it back to me. He turned around to grab a bag or something, while I grabbed a second unsigned card, signed it when he wasn't looking, and proceeded to pay while everyone in line was chuckling.
Bottom line: it's a security measure that relies upon untrusted and unreliable humans for enforcement, which makes it pretty weak. A more secure measure are ATM PINs, but they trade off the ease of online transactions (PINs should not be seen by merchants, requiring the bank to be in the transaction, etc.).
The comment about available bandwidth can be deceiving. It all depends on who wants to communicate with whom; in the worst case, random nodes open connections to other random nodes across the network. There is a capacity bound first published by Gupta and Kumar that says that with N pairs of communicating nodes, their individual connections get 1/sqrt(N) of the (fixed 802.11) bandwidth. (They are competing for a cut across the mesh of size on the order of sqrt(N)).
In other words, expect low-bandwidth apps like IM, email, web across long range links, and high bandwidth locally.
I'm getting tired of all the complaining about passwords and their insecurity. It is hard to change people, and if you don't want them to give away password information, don't give them any. If we can use keys to get into our homes we should be able to use them for authentication as well.
Is it true that DC-to-DC is just a combination of DC-AC and AC-DC? In that case, then there are still two conversion steps. (Still more efficient than when separate, but not by half).
NASA costs $15 billion per year to run. Thats rather a lot of money for a government with a $500 billion deficit to be spending on feel good programs.
The only way that the Mars trip becomes viable is with a space elevator. The shuttle and the space station are irrelevant. All they are doing is finding out what we know already, people's bodies start to deteriorate significantly after six months or so in space. And that is within the protection of the earth's magnetic field.
I think we pretty much agree here. To put your reply in different words, the way NASA is going about manned space exploration sucks. They should be looking into building a space elevator, etc. and if that includes doing science so be it. But again that doesn't make science their primary mission.
As for "feel good" programs, that term is a can of worms. Is social security a feel good program? How about the Iraq war? Some would say so; it's a very vague term.
The basic problem here is that NASA sees its mission as manned space exploration and that has very little to do with science.
Well that begs an interesting question: why should NASA's mission be scientific? It is the national space agency, I don't see a problem with them working on manned space exploration.
The time savings wouldn't come from quicker starts as much as from the reduced distances between cars. Currently, as cars take off, they introduce "bubbles" into the flow, reducing the rate of cars per traffic light cycle. With automated range control, the distances between cars would be much smaller, leading to a higher traffic density and thus better throughput.
All this is moot, since it would just spur more suburban development until the congestion rises back to some equilibrium level of annoyance. Build it and they will come.
According to the L.A. Times, her scheme would require each car be fitted with a mileage tracking device that beamed a signal to a GPS satellite. A driver's tax would then be calculated based on total miles driven.
Methinks the L.A. Times needs to read up on how the GPS works.
Time to quote the Tao of Programming
on
Halo 2 Released
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· Score: 1
8.2
A master programmer passed a novice programmer one day. The master noted the novice's preoccupation with a hand-held computer game. "Excuse me", he said, "may I examine it?"
The novice bolted to attention and handed the device to the master. "I see that the device claims to have three levels of play: Easy, Medium, and Hard", said the master. "Yet every such device has another level of play, where the device seeks not to conquer the human, nor to be conquered by the human."
"Pray, great master," implored the novice, "how does one find this mysterious setting?"
The master dropped the device to the ground and crushed it under foot. And suddenly the novice was enlightened.
There are hidden costs in rebates, film at 11. Sure there are. But when a CompUSA is selling a $160 hard drive for $80 after rebate, or OfficeMax selling a $200 DVD+-RW burner for $40 after rebate (no joke) I do it.
Since the passports are not easily rekeyed, the key would be static, and bound to be leaked. Once that happens, the system is as good as having no encryption at all. (Though you could change keys every month or something, revoke passports with compromised keys, etc.).
So there is really no excuse to store unencrypted data on the RFID chip.
Sure there is: it's a hell of a lot cheaper. How much money do you think would the government spend building a security system? Rekeying, revocation...
Now that I think about it, they're right. What is the lifetime of a typical MP3 song? I download it, listen to it a while, forget about it, and then either the disk breaks or it gets accidentally deleted. That sounds pretty unpermanent to me, and it sure as hell isn't archived.
And as for sampling, what better word to describe listening to recorded music? If I like the song, I go to the concert.
I don't know what their reasoning is, but both their claims about TCP seem incorrect.
1. TCP does not use round trip time to calculate any "congestion levels." It increases the connection rate until packets get dropped, presumably because some router in the middle got overloaded.
2. Packet loss is used as a signal to TCP to slow down because it tried to send too fast. The lost packets are subsequently retransmitted, so TCP can indeed not only tolerate but recover from packet loss. The only real case they have is packet loss due to reasons other than TCP's own aggressive sending rate, such as UDP traffic, wireless links, etc.
Given these concerns, I can't help but think that they are inventing a protocol that works well only if used on a small scale. TCP is designed to back down if it thinks it's sending too fast, and is not really optimal. One can always hack a pair of TCP nodes to not play by the rules and get more than the fair share, but the problem is that that solution wouldn't work if it were adopted network-wide.
In an algorithms class (about 60 students) at my school there was a big challenging programming assignment mid-semester. The prof and the TAs caught a couple of people cheating, like 3 or so. Now this was a cool prof who didn't want to get kids kicked out of school so he decided to give them a second chance. On the final, there was a question worth 1 point stating "We found some cheating last month. If you did it, confess and you only fail the course. If you don't confess, we'll get you kicked out. Did you cheat? (1)"
Right, but how do they make their offspring mate with other improved offspring? They can't unless it is mandated. And if it is not, I think there will always be enough social mobility to prevent two clearly biologically separated castes from arising down the line.
Inhale the gasses rising from a bed of burning charcoal, as in when bbq-ing. Nasty burning sensation thanks to carbonic acid forming from moisture on mucous membranes...
Slashdot Mirror
Remember the Internet (capatial I) isn't the only internet out there.
Wow, so Bush was right. I was just not enlightened enough to see his wisdom, but I understand now! May I be worthy to receive more knowledge from our glorious government.
Reminds me of a joke when three secret agents from USA, UK, and Russia were called in to examine a newly discovered Egyptian pyramid, and determine the age of a mummy. The USA and UK guys spend half a day inside with no results, while the Russian comes out within a half hour and says: "9341 years old." "How did you figure it out?" "She confessed everything!"
They should be forced to change it because some college student doesn't understand that "Marketing are good" isn't grammatically correct?
Interesting point there-- is that phrase really gramatically incorrect? What if I was writing a story about a race of aliens called "Marketing" and tried to describe them? It seems that writing a 100% correct checker is so dependent on understanding and context that it's pretty much impossible.
TFA: Last year, people at a transit station gladly gave up their passwords for a chocolate Easter egg.
What passwords? Did they check them? This doesn't sound too credible.
The social security number in the US is like a true name: whoever knows it wields power over the person. In particular, they can mess up one's credit history, which is a big deal when trying to get loans, mortgages, etc.
I was at the cashier in a bookstore, about to pay for a couple of books. The clerk didn't want to take my unsigned credit card, and handed it back to me. He turned around to grab a bag or something, while I grabbed a second unsigned card, signed it when he wasn't looking, and proceeded to pay while everyone in line was chuckling.
Bottom line: it's a security measure that relies upon untrusted and unreliable humans for enforcement, which makes it pretty weak. A more secure measure are ATM PINs, but they trade off the ease of online transactions (PINs should not be seen by merchants, requiring the bank to be in the transaction, etc.).
The comment about available bandwidth can be deceiving. It all depends on who wants to communicate with whom; in the worst case, random nodes open connections to other random nodes across the network. There is a capacity bound first published by Gupta and Kumar that says that with N pairs of communicating nodes, their individual connections get 1/sqrt(N) of the (fixed 802.11) bandwidth. (They are competing for a cut across the mesh of size on the order of sqrt(N)).
In other words, expect low-bandwidth apps like IM, email, web across long range links, and high bandwidth locally.
I'm getting tired of all the complaining about passwords and their insecurity. It is hard to change people, and if you don't want them to give away password information, don't give them any. If we can use keys to get into our homes we should be able to use them for authentication as well.
It seems like someone has been watching the show :)
Is it true that DC-to-DC is just a combination of DC-AC and AC-DC? In that case, then there are still two conversion steps. (Still more efficient than when separate, but not by half).
NASA costs $15 billion per year to run. Thats rather a lot of money for a government with a $500 billion deficit to be spending on feel good programs.
The only way that the Mars trip becomes viable is with a space elevator. The shuttle and the space station are irrelevant. All they are doing is finding out what we know already, people's bodies start to deteriorate significantly after six months or so in space. And that is within the protection of the earth's magnetic field.
I think we pretty much agree here. To put your reply in different words, the way NASA is going about manned space exploration sucks. They should be looking into building a space elevator, etc. and if that includes doing science so be it. But again that doesn't make science their primary mission.
As for "feel good" programs, that term is a can of worms. Is social security a feel good program? How about the Iraq war? Some would say so; it's a very vague term.
The basic problem here is that NASA sees its mission as manned space exploration and that has very little to do with science.
Well that begs an interesting question: why should NASA's mission be scientific? It is the national space agency, I don't see a problem with them working on manned space exploration.
The time savings wouldn't come from quicker starts as much as from the reduced distances between cars. Currently, as cars take off, they introduce "bubbles" into the flow, reducing the rate of cars per traffic light cycle. With automated range control, the distances between cars would be much smaller, leading to a higher traffic density and thus better throughput.
All this is moot, since it would just spur more suburban development until the congestion rises back to some equilibrium level of annoyance. Build it and they will come.
According to the L.A. Times, her scheme would require each car be fitted with a mileage tracking device that beamed a signal to a GPS satellite. A driver's tax would then be calculated based on total miles driven.
Methinks the L.A. Times needs to read up on how the GPS works.
8.2
A master programmer passed a novice programmer one day. The master noted the novice's preoccupation with a hand-held computer game. "Excuse me", he said, "may I examine it?"
The novice bolted to attention and handed the device to the master. "I see that the device claims to have three levels of play: Easy, Medium, and Hard", said the master. "Yet every such device has another level of play, where the device seeks not to conquer the human, nor to be conquered by the human."
"Pray, great master," implored the novice, "how does one find this mysterious setting?"
The master dropped the device to the ground and crushed it under foot. And suddenly the novice was enlightened.
There are hidden costs in rebates, film at 11. Sure there are. But when a CompUSA is selling a $160 hard drive for $80 after rebate, or OfficeMax selling a $200 DVD+-RW burner for $40 after rebate (no joke) I do it.
Hah, I hope you don't get your hydrogen by reducing it from methane :)
Since the passports are not easily rekeyed, the key would be static, and bound to be leaked. Once that happens, the system is as good as having no encryption at all. (Though you could change keys every month or something, revoke passports with compromised keys, etc.).
So there is really no excuse to store unencrypted data on the RFID chip.
Sure there is: it's a hell of a lot cheaper. How much money do you think would the government spend building a security system? Rekeying, revocation...
Cameras may not be pointed at public spaces.
I guess that takes care of tourists too, eh? Some freedom.
Now that I think about it, they're right. What is the lifetime of a typical MP3 song? I download it, listen to it a while, forget about it, and then either the disk breaks or it gets accidentally deleted. That sounds pretty unpermanent to me, and it sure as hell isn't archived.
And as for sampling, what better word to describe listening to recorded music? If I like the song, I go to the concert.
I don't know what their reasoning is, but both their claims about TCP seem incorrect.
1. TCP does not use round trip time to calculate any "congestion levels." It increases the connection rate until packets get dropped, presumably because some router in the middle got overloaded.
2. Packet loss is used as a signal to TCP to slow down because it tried to send too fast. The lost packets are subsequently retransmitted, so TCP can indeed not only tolerate but recover from packet loss. The only real case they have is packet loss due to reasons other than TCP's own aggressive sending rate, such as UDP traffic, wireless links, etc.
Given these concerns, I can't help but think that they are inventing a protocol that works well only if used on a small scale. TCP is designed to back down if it thinks it's sending too fast, and is not really optimal. One can always hack a pair of TCP nodes to not play by the rules and get more than the fair share, but the problem is that that solution wouldn't work if it were adopted network-wide.
In an algorithms class (about 60 students) at my school there was a big challenging programming assignment mid-semester. The prof and the TAs caught a couple of people cheating, like 3 or so. Now this was a cool prof who didn't want to get kids kicked out of school so he decided to give them a second chance. On the final, there was a question worth 1 point stating "We found some cheating last month. If you did it, confess and you only fail the course. If you don't confess, we'll get you kicked out. Did you cheat? (1)"
Half the class confessed.
Exactly, and thus you end up with everyone eventually being "enhanced" one way or the other, and thus there wouldn't be two castes.
Right, but how do they make their offspring mate with other improved offspring? They can't unless it is mandated. And if it is not, I think there will always be enough social mobility to prevent two clearly biologically separated castes from arising down the line.
Inhale the gasses rising from a bed of burning charcoal, as in when bbq-ing. Nasty burning sensation thanks to carbonic acid forming from moisture on mucous membranes...