...proprietary programs would be considered unwise to run by default.
If taken to it's ultimate conclusion: any code you didn't write yourself, and compile with a compiler you wrote yourself, to run on hardware you designed yourself would be unsafe to run. And that's making the big asumptions that nobody snuck in and changed things without you knowing, and that you can trust your own memory.
I bought a copy of the original broadcast a few years ago, and I listened to it many times. This remake sucks. It seems hurried. The voices are too forboding, too hurried, too excited, or flat. It seems to lack a sense of timing. The dialog almost seems to run on continuously. Also the sound effects in the original far outshine the generic sound bytes used in this recreation.
The mercury theatre worked together very well, Orson Wells knew how to tell a radio story, and they had a great sense of timing.
Part of that performance that realy made it good was the music at the beginning. It was good music, and worth listening to on it's own(it's supposed to be "the ever popular Stardust"). When the report cut away you were annoyed, and when it got back to the music it left you there long enough to almost forget the first report.
I sit here wishing my copy of the original wasn't scratched.
It's the memory and proprietary formats.
I have lost my data 3 times when a pda battery goes dies. with proprietary formats on windows ce or palm the files are hard to move back and forth and use in both places. I won't use one for anything important untill they have non volatile memory, and I can run any software I want on it.
The easiest way to aim an aray of mirrors in my experience is to stand in front of a mirror with your head's shaddow on the mirror, then adjust the mirror so you can see the target. makes it very fast to aim lots of mirrors.
Looks like they calculated how much energy it would take, then upped that by a bit, then carefully aimed their mirrors to achieve the required flux. It worked. If they were able to get smoke from 129 self-aimed, 1ft. mirrors, get a few thousand soldiers on a hill, and see what they can do.
btw... the math on the power of the mirrors is wrong. if the mirrors are flat (and you can think of a curved mirror as many small flat ones), then the mirrors effectively apear to be another sun. from the targets point of view a mirror(or part of one) is either reflecting the sun or not. The total flux at any point comes from how big (angular) the total surface of all the reflecting mirrors apears to the target. That's why a small, close, shaped reflector (or lens) can burn things, and why it's harder to scale up.
I can't RTFA, so i have no idea what MIT did, but from what others are saying it's not possible because of the difficulty aiming the mirrors. What people seem to forget is that there would have been thousands of trained mirror aimers available to make something like that work.
As a real test I suggest someone hand out 30,000 mirrors at a football game and at halftime tell everyone to just try to aim at a target. I'd bet it would work, but the game will probably be canceled due to blinded/vaporised players.
It seems to me that Leonardo was something very special. He was a truly interested and intelligent person.
People now are pushed through school, and told what things are. They are told "Why do you think you know more?" and "that's just the way it is." if they feel things can be done better. Memorization becomes the key to sucsess. True curiosity is lost when you don't look with fresh eyes.
When Leonardo saw the heart he saw a new thing to be drawn for the first time, a new aparatus to be analised, a wonderfull new part of man to understand. When doctors see it, they see a heart.
Leonardo was so curious that when his interest turned to the human body, he broke the law and risked being killed to dig up graves to get to see what was inside us. When he looked he realy looked. When he understood, he understood. That's why he saw what others couldn't, and why his ideas have value today.
I'm kinda bummed because I had a vehicle that moved, and was just a couple of days from full autonomous waypoint following... I just needed to install the brakes, but didn't get a site visit.
I had no team... I did it all by my self. Worked on a vision system that I could have had working by may. My video was just no good... filmed myself, and edited in 20 minutes to get it out on time, I forgot to mention the work I had done that was not represented on the vehicle at the time... Mostly research and test progams for realtime fuzzy photogrammetry. Total spent: less than $2000
So if i'm reading you right you are suggesting that insted of reading through a file from beginning to end, you would essentialy shuffle the pieces around? this seems more applicable to encryption than for use in a one-way hash.
in a one-way hash there shouldn't be any ambiguity about the connection between the hash and the message. also nobody should be able to create 2 messages with the same hash. MD5 and SHA-1 use a method in which the message is broken into blocks that are handled one at a time, creating a carry over hash for use in the processing of the next block.
an efficient attack on MD5 or SHA is going to target the carry over hash, not the entire hash. scrambling the order may or may not have the desired effect of preventing an attack. increasing the complexity and size of the round (all else being equal)would make an attack more dificult.
With MD5 and SHA the carry over hash is the same size as the final hash. What I was proposing was a carry over hash that was large to start with(hard to crack), but diminishes rapidly. you can have a huge initial round, yet have a small resultant hash(on a scale a human can look at and check easily) if you iterate a percentage reduction hash(ie. hash the resultant hash untill it is the size you want). the only down side of this method is computation. it would take a lot longer to calculate the hash, and take more memory to process, but the resultant security may offset this cost, especially in light of todays fast processors.
when I was learning how these hash functions work, i was amazed to find that they work through the file to be hashed in a linear manner so that an attacker can target 1 small round and create a colision. does anyone know of any hash function that operates on the entire file in a single expanding round that can expand to take the entire file? it is my understanding that these attacks focus on defeating a single round of a set size hash. an expanding hash would make this many times more difficult to crack.
A hash that reduces the size of the original by only 50% could be re-iterated to create progressively smaller and smaller results untill a hash in a certain size range was created. any attack would have to break the first round, and that first round could be defined to produce a result no smaller than 10MB or something. that should be enough to keep us safe for a while.
wow... I don't think I've ever made that face before... it's kinda funny. I should take a picture and bury it in the ground for people to dig up centurys from now.
My first attempt at remote control people involved a shirt that would relay comands to the users chest. the second attempt involved a welding helmet with a bit that the user held in their mouth like a horse. with the bit, steering didn't work too well and this looks like it can steer fairly well.
I am an atheist, and I believe in science. In my opinion the equal time for both idea is actually a good way to teach children why evolution is a superior idea. Many children will have been taught at home and church that creationism is the way things are. Children exposed to both in school will be in a position to address and question what they have been taught their whole lives.
It is the ultimate expression of evolutionary memetics. The most fit idea will survive.
I think the presidents intelligence is often underestimated. He seems very forward looking to me. Mars, social security, Allowing rights to be trampled temporarily to condense opposition...("prohibition does not work") Brilliant. Even the stem cell "ban" seemed to me to be aimed at pushing adult stem cell research, where a patients own cells may be used in a treatment. I voted for Bush... I wanted some excitement. He is certainly shaking things up.
I'm responding from a cafe I stopped at that advretised free wireless. I'm just passing through and I was already going to get something to eat, but came back here because of it...
I drove out to see the launch from Utah because I suspected it might be delayed and I can always sleep in the back of my van right? It took me 4 days to drive, I got there 3 days early so I could spend 2 days at the Visitors center, and Astronaut hall of fame, then get a great spot a day early. I found one a great spot about a block north of the Macdonalds in Titusville.
the view at night was great... the shuttle was all lit up, and you could see it sitting on the pad realy well. If the launch had happened I think I would have had a great view of the shuttle rising beween 2 palm trees.
I'm still hoping this thing happens and I'm going to stick around in FL till I find out for certain If it's gonna fly or not.
I did go on quests. They just got boring. I couldn't bring myself to care about the stupid story they were telling me. I would clasify going on quests to get exp a traditional grind.
Click on guy with exclamation point, click through fantasy themed dialog, follow instructions, get exp. It was more fun exploring, and trying to get places they had tried to make off limits.
Partialy, the reason it was more fun exploring was to see what would happen when I got to the edge. It just shows how poorly they thought out player confinement. They rely mostly on a single mechanism on land (ground pathability by slope or tag) to confine players. That doesn't always work, so there is usually a way past it. That makes it fun. There are some invisible walls, but those are rare. If they dont want people to go somewhere, they should put an invisible wall around it/use the fatigue thing even on land. If they did that people would tire of exploring quickly.
People exploring boundarys like that is a sign that people are looking outside the provided experience for something else. In my opinion, the fact that it is becoming a problem for blizzard says something about the game. And the way they decided to handle it is interesting.
After going on a few exploration trips and seeing realy cool sights, I realised how lame the actual game was. It was way more fun for me to set off on a glitch hunt, climb a huge mountain (East of Loch Modan), and try to jump to the ocean (90 second fall) than it was to keep killing the same stupid monsters for an hour to level up or to get gold.
I wish Google Earth had a little guy I could control and walk around the same way. Virtualy climbing everest would rock.
Dang... never thought of radiation danger... I'm gonna ask alcor about that. Wouldn't wanna wake up in the future just to die again with a bad case of radiation sickness.
I have an unlimited minute plan with Cricket for $35/month.
I rarely call outside the state I live in, so I don't pay for long-distance on my phone. $5 extra give unlimited US calling. a few of my friends have the same plan and we laugh when we hear people complain about minutes or getting charged extra fees. our phones basically work like land line phones, and I know exatly what my bill will be every month.
since I started using Cricket over 5 years ago I havn't paid a cent more than what I agreed to pay every month, and havn't had any problems at all. I will never go back to Sprint or AT&T, or get another limited minute plan ever.
Slashdot Mirror
...proprietary programs would be considered unwise to run by default.
If taken to it's ultimate conclusion: any code you didn't write yourself, and compile with a compiler you wrote yourself, to run on hardware you designed yourself would be unsafe to run. And that's making the big asumptions that nobody snuck in and changed things without you knowing, and that you can trust your own memory.
YES!! I had this on cd but it got scratched and this remake sux.
I bought a copy of the original broadcast a few years ago, and I listened to it many times. This remake sucks. It seems hurried. The voices are too forboding, too hurried, too excited, or flat. It seems to lack a sense of timing. The dialog almost seems to run on continuously. Also the sound effects in the original far outshine the generic sound bytes used in this recreation.
The mercury theatre worked together very well, Orson Wells knew how to tell a radio story, and they had a great sense of timing.
Part of that performance that realy made it good was the music at the beginning. It was good music, and worth listening to on it's own(it's supposed to be "the ever popular Stardust"). When the report cut away you were annoyed, and when it got back to the music it left you there long enough to almost forget the first report.
I sit here wishing my copy of the original wasn't scratched.
It's the memory and proprietary formats. I have lost my data 3 times when a pda battery goes dies. with proprietary formats on windows ce or palm the files are hard to move back and forth and use in both places. I won't use one for anything important untill they have non volatile memory, and I can run any software I want on it.
oh yeah...
The easiest way to aim an aray of mirrors in my experience is to stand in front of a mirror with your head's shaddow on the mirror, then adjust the mirror so you can see the target. makes it very fast to aim lots of mirrors.
So i got to read it...
Looks like they calculated how much energy it would take, then upped that by a bit, then carefully aimed their mirrors to achieve the required flux. It worked. If they were able to get smoke from 129 self-aimed, 1ft. mirrors, get a few thousand soldiers on a hill, and see what they can do.
btw... the math on the power of the mirrors is wrong. if the mirrors are flat (and you can think of a curved mirror as many small flat ones), then the mirrors effectively apear to be another sun. from the targets point of view a mirror(or part of one) is either reflecting the sun or not. The total flux at any point comes from how big (angular) the total surface of all the reflecting mirrors apears to the target. That's why a small, close, shaped reflector (or lens) can burn things, and why it's harder to scale up.
I can't RTFA, so i have no idea what MIT did, but from what others are saying it's not possible because of the difficulty aiming the mirrors. What people seem to forget is that there would have been thousands of trained mirror aimers available to make something like that work.
As a real test I suggest someone hand out 30,000 mirrors at a football game and at halftime tell everyone to just try to aim at a target. I'd bet it would work, but the game will probably be canceled due to blinded/vaporised players.
It seems to me that Leonardo was something very special. He was a truly interested and intelligent person.
People now are pushed through school, and told what things are. They are told "Why do you think you know more?" and "that's just the way it is." if they feel things can be done better. Memorization becomes the key to sucsess. True curiosity is lost when you don't look with fresh eyes.
When Leonardo saw the heart he saw a new thing to be drawn for the first time, a new aparatus to be analised, a wonderfull new part of man to understand. When doctors see it, they see a heart.
Leonardo was so curious that when his interest turned to the human body, he broke the law and risked being killed to dig up graves to get to see what was inside us. When he looked he realy looked. When he understood, he understood. That's why he saw what others couldn't, and why his ideas have value today.
I'm kinda bummed because I had a vehicle that moved, and was just a couple of days from full autonomous waypoint following... I just needed to install the brakes, but didn't get a site visit.
I had no team... I did it all by my self. Worked on a vision system that I could have had working by may. My video was just no good... filmed myself, and edited in 20 minutes to get it out on time, I forgot to mention the work I had done that was not represented on the vehicle at the time... Mostly research and test progams for realtime fuzzy photogrammetry. Total spent: less than $2000
So if i'm reading you right you are suggesting that insted of reading through a file from beginning to end, you would essentialy shuffle the pieces around? this seems more applicable to encryption than for use in a one-way hash.
in a one-way hash there shouldn't be any ambiguity about the connection between the hash and the message. also nobody should be able to create 2 messages with the same hash. MD5 and SHA-1 use a method in which the message is broken into blocks that are handled one at a time, creating a carry over hash for use in the processing of the next block.
an efficient attack on MD5 or SHA is going to target the carry over hash, not the entire hash. scrambling the order may or may not have the desired effect of preventing an attack. increasing the complexity and size of the round (all else being equal)would make an attack more dificult.
With MD5 and SHA the carry over hash is the same size as the final hash. What I was proposing was a carry over hash that was large to start with(hard to crack), but diminishes rapidly. you can have a huge initial round, yet have a small resultant hash(on a scale a human can look at and check easily) if you iterate a percentage reduction hash(ie. hash the resultant hash untill it is the size you want). the only down side of this method is computation. it would take a lot longer to calculate the hash, and take more memory to process, but the resultant security may offset this cost, especially in light of todays fast processors.
when I was learning how these hash functions work, i was amazed to find that they work through the file to be hashed in a linear manner so that an attacker can target 1 small round and create a colision. does anyone know of any hash function that operates on the entire file in a single expanding round that can expand to take the entire file? it is my understanding that these attacks focus on defeating a single round of a set size hash. an expanding hash would make this many times more difficult to crack.
A hash that reduces the size of the original by only 50% could be re-iterated to create progressively smaller and smaller results untill a hash in a certain size range was created. any attack would have to break the first round, and that first round could be defined to produce a result no smaller than 10MB or something. that should be enough to keep us safe for a while.
wow... I don't think I've ever made that face before... it's kinda funny. I should take a picture and bury it in the ground for people to dig up centurys from now.
My first attempt at remote control people involved a shirt that would relay comands to the users chest. the second attempt involved a welding helmet with a bit that the user held in their mouth like a horse. with the bit, steering didn't work too well and this looks like it can steer fairly well.
... my Syndicate can begin to take over the world!!
I am an atheist, and I believe in science. In my opinion the equal time for both idea is actually a good way to teach children why evolution is a superior idea. Many children will have been taught at home and church that creationism is the way things are. Children exposed to both in school will be in a position to address and question what they have been taught their whole lives.
It is the ultimate expression of evolutionary memetics.
The most fit idea will survive.
I think the presidents intelligence is often underestimated. He seems very forward looking to me. Mars, social security, Allowing rights to be trampled temporarily to condense opposition...("prohibition does not work") Brilliant. Even the stem cell "ban" seemed to me to be aimed at pushing adult stem cell research, where a patients own cells may be used in a treatment. I voted for Bush... I wanted some excitement. He is certainly shaking things up.
I'm responding from a cafe I stopped at that advretised free wireless. I'm just passing through and I was already going to get something to eat, but came back here because of it...
I drove out to see the launch from Utah because I suspected it might be delayed and I can always sleep in the back of my van right? It took me 4 days to drive, I got there 3 days early so I could spend 2 days at the Visitors center, and Astronaut hall of fame, then get a great spot a day early. I found one a great spot about a block north of the Macdonalds in Titusville.
the view at night was great... the shuttle was all lit up, and you could see it sitting on the pad realy well. If the launch had happened I think I would have had a great view of the shuttle rising beween 2 palm trees.
I'm still hoping this thing happens and I'm going to stick around in FL till I find out for certain If it's gonna fly or not.
I did go on quests. They just got boring. I couldn't bring myself to care about the stupid story they were telling me. I would clasify going on quests to get exp a traditional grind.
Click on guy with exclamation point, click through fantasy themed dialog, follow instructions, get exp. It was more fun exploring, and trying to get places they had tried to make off limits.
Partialy, the reason it was more fun exploring was to see what would happen when I got to the edge. It just shows how poorly they thought out player confinement. They rely mostly on a single mechanism on land (ground pathability by slope or tag) to confine players. That doesn't always work, so there is usually a way past it. That makes it fun. There are some invisible walls, but those are rare. If they dont want people to go somewhere, they should put an invisible wall around it/use the fatigue thing even on land. If they did that people would tire of exploring quickly.
People exploring boundarys like that is a sign that people are looking outside the provided experience for something else. In my opinion, the fact that it is becoming a problem for blizzard says something about the game. And the way they decided to handle it is interesting.
After going on a few exploration trips and seeing realy cool sights, I realised how lame the actual game was. It was way more fun for me to set off on a glitch hunt, climb a huge mountain (East of Loch Modan), and try to jump to the ocean (90 second fall) than it was to keep killing the same stupid monsters for an hour to level up or to get gold.
I wish Google Earth had a little guy I could control and walk around the same way. Virtualy climbing everest would rock.
we can make viruses.
watch the DVD of 28 days later. there was an alternate ending that you should watch.
Dang... never thought of radiation danger... I'm gonna ask alcor about that. Wouldn't wanna wake up in the future just to die again with a bad case of radiation sickness.
I have an unlimited minute plan with Cricket for $35/month.
I rarely call outside the state I live in, so I don't pay for long-distance on my phone. $5 extra give unlimited US calling. a few of my friends have the same plan and we laugh when we hear people complain about minutes or getting charged extra fees. our phones basically work like land line phones, and I know exatly what my bill will be every month.
since I started using Cricket over 5 years ago I havn't paid a cent more than what I agreed to pay every month, and havn't had any problems at all. I will never go back to Sprint or AT&T, or get another limited minute plan ever.
Orin Hatch has his dream
that last bit is a quote from the article.