LEO satellites have a time perioed of a few hours, so they would come overhead every hour or two. So I dont think time is a big problem, I am sure you can aim a laser in less time than an aircraft takes to climb from 30,00 feet (i think F15 should normally fly at this altitude?) to 80,000 feet.
And with an aircraft, you have to worry about having a plane constantly in air, backup planes , inflight refuelling etc. With a laser, you just have a few ground stations automatically tracking all your satellites and the lasers on the ready, press a button and the satellite has a hole in its sun sheild.
But then again the laser must have had some problems, otherwise by now we should have seen it deployed already.
I cant find the relevant article, but after the collapse of the Soviet Union, they found that our Comrades were far ahead of US. They apparently had tested laser based satellite/missile destruction systems etc. US was following the same path (Star wars ?), just that they were a few years behind the Soviests.
So you probably dont really need a rocket to bring down a satellite.And laser based communication was used to talk to the moon mission, so the improvement required is only to reduce the cone angle slightly and to increase the power by lots (or use lots of small lasers aimed at the same satellite at the same time).
Not really true. Atleast not really true historically. Remember the Fat binaries ? Apple actually supported two different architectures with the same binary , without the user even having to know about it. It true that if they dint do that they would have been dead right now, but still its a histrorical counterexample to the arguement.
Ofcourse this would affect the radiator mainly.This will in no way by itself make engines better.But I was thinking that this would allow you to use newer kind of materials for the engine, allow you to put in larger/smaller cylinders, allow you to make the cylinders in odd shapes etc. etc.
This indirectly would make the engines run better and smaller. This technology was developed for Chips but I think this should be portable to car engines too (the only difference from the current water cooling tech i can see is that they got the pipes to very small sizes and removed the mechanical pump).
Also if this scales to really high temperatures then aircraft engines could get a lot better since the main limitation they have is materials.But I suppose that would be hoping for too much from a technology which is still a water based cooling technology (maybe someone could change the cooling fluid?).
I think a more immediate use would be in Internal Combustion engines. A whole lot of heat is produced by engine (almost 40 percent of total fuel consumption) , this method would be ideal in those situations if the 1000 watts/cm^2 is correct. Engines would become a whole lot smaller and efficient.
They finally seem to have a solution to the "too many windows open" (not apple specific, I have not even used one) problem. I hate to have to hold down Alt-Tab (i like to use the keyboard) and then look around to find which window I want to switch to. Because of this, I tend to have a max of two or three windows open at a time. No OS really helps here, though in Linux I use multiple desktops to group tasks of similar kind (Desktop one for work, two playing music, three for a root login in case I want to mount NFS etc. ) and I can easily switch when the windows hierrarchy looks like a tree.
Take a look at the Apple solution called Expose . They use F9 to cascade all windows (like opera), another key to grey out all windows of other apps than the one you are using. Press F10 and all photoshop apps are highlighted while all other apps fade into grey. In linux Gimp could benefit from such a feature.
Re:Because it's not illegal if you have permission
on
Get Paid To Crack?
·
· Score: 1
Sure, you gave me permission to hack your system , but microsoft did not.
Dont let the "pstohtml"ish webpage con you. And dont let them convince you that they are not law enforcement.I'm sure they are in with Ashcroft.
Note the term Hacker in all the writeups, the incorrect use term the establishment uses to paint Linux hackers black ? Note the referral program ? Trust nobody!!
On a serious note, suppose somebody actually cracks their server, and they hold the information secret, will they be an accesory to crime ? Surely enough , just because nobody compained about a murder it does not become a non-crime. So with convictions for cracking being higher than manslaughter, what is to stop a third party from dragging everyone to court? Even if they dont cause any harm to these guys, they surely broke DMCA laws, by harming microsoft? No?
I have the exact opposite point of view. These routine news items like awards shouldnt be on slashdot frontpage at all. Look at slashdot, everytime a hugo award is given out its on slashdot (even though after harry potter getting it, its no more fun). Every time an Ig Nobel is announced its a story (Ok those are fun). Now Nobel awards are frontpage material.
From the linked article The physics award will be announced Tuesday and the chemistry and economics awards Wednesday in the Swedish capital.
This potentially means two more frontpage stories on slashdot and 3 if the Economics award goes to behavioral economics or computational (is there a term like this) economics.
This makes no sense because I can read it on newspapers anyway, no paper is going to miss the nobel awards. And the invention was in 70s and its not like slammer that we must know that NOW before its too late. Sorry for ranting..Maybe comments on stories add some informational value to the stories..
BTW did slashdot put up stories on fields medals??
Thats probably the whole idea . They most probably want to see if people search more if you give a counter to them. In the linked article they clearly say that this idea was inspired by frequent flier miles in air travel.
Of course not. My school library had a huge lot of them. I have read all the Terrance dicks books in the collection (Ok I never kept track, but i cant seem to find any I have not read) and many of the others I found in the town library.The books being small I could borrow and finish it off the same day and return it the next day. Kept it up for around a year and a half. So probably read not even 1/3rd of the total, if you say 1400 is the actual number of books.
Am I the only one around here who has never seen Doctor Who on TV but have read all the books? My favorite was Terrance Dicks books, usally large size fonts, clear and funny narration and the best stories. !!!
Hope to see it this time. BTW. Any idea if BBC will put it on the International channel instead of all the local ones?
"By so strongly defending the controversial GPL, IBM is also defending a questionable licensing scheme through which it can avoid providing software indemnification for its customers. We continue to urge IBM to provide legal indemnification for its Linux customers"
What they are saying is that all software should have warranties
This is the funniest part.IBM is not not a Linux vendor. They get their Linux from Redhat/suse and bundles it along with services. Since they are not a vendor, they really dont have to worry about software indemnification (Redhat may or may not ). But SCO on the other hand was a Linux vendor. So by saying that Linux vendors should be providing warranties, SCO has more cause to worry than IBM.
IF a court actually rules that software needs warranties along with it, then not only is linux affected, but ALL software business changes. Microsoft may have to pay users for all the viruses they got infected with.
Hmm... Did'nt you get it backwards ?
A DDos is when multiple people attack one entity. If SCO starts to sue every IBM customer , they would be DDosing themselves. You cannot assume that if SCO sues an IBM customer he will immediatly sue IBM. Even if the success rate is something like 90 percent, IBM will withstand it better since they are a larger company. SCO is going to be buried in legal fees if they ever try this stunt.
Linux is far from being the only bootable CD environment. Ever bought a server from HP, Dell etc? They give you a CD with all the relevant drivers etc. You boot into the CD, it detects the devices, copies drivers onto harddisk, writes a kickstart file etc. Then you reboot to a normal OS CD and install proceeds fine. HP uses Win95 (98) for their first bootable CD , Dell uses NT etc. the boot environment is a full OS (with intentionally crippled networking etc.). The latest from MS is based on winXP and is called WinPE". If you are big enough and can pay enough, then you can license it and then modify it whatever way you please.
If you are going to use a diffraction grating, then why dont you use a CD ? A CD makes a very good refraction grating (thats why you see a rainbow on its data side), and with those Yamaha Cd burners which you could use to draw pictures on the data side of a CD, it should be trivial to make a grating with the exact properties you want
Anyway the point about this experiment was I think to measure the speed/wavelength of light as directly as possible without any complicated equations etc. If you are going to use complicated methods, then what about using interference? Just get two laser pointers of different colours and shine them and use a microscope
Speed of light should be the same as the speed of EM waves, if then there could be a way of measuring this. Just get a long enought network cable, keep varying the transmission frequency on the cable, 10 MB, 100 MB etc. till the echo effect starts affecting you.That distance should be something like the time taken for the reflected shound wave to be half a phase wrong. So you know the frequency, you know the cable length and hence you can calculate the speed of the EM wave in the cable.
Any idea if this is correct? I know that on a 10 MBps network the signal cant go above 200 m , so the speed of light from this method is 200*2/(1/2*10^5) = 8 *10^7 metres/second or one fourth the actual value.
The BBC article had almost no information, what it says is equivalent to "meteor strikes california"(orissa is the name of a state), no explanation of how big, where exactly etc. Indian newspapers have no information either. Finally found this article on Indian Express. Also I dont think there would be an official collection of funds. 8 people injured is not even newsworthy for Orissa. Every year atleast a 100 die in floods. An occasional drought or an earthquake or even a heat wave kills more. I'm sorry if I seem uncaring , but that seems the way it is
Apparently somebody actually died and others are in hospital. Also it hit more than one village and the villagers collected a 5.7 kg (approx 12 pounds) rock and have kept it at the local "panchayat" office ( village governence office). So somebody lost a fortune on this, but they have been nice to turn it to the officials.
5) A new "net" command has been added. It is somewhat similar to
the "net" command in windows. Eventually we plan to replace
numerous other utilities (such as smbpasswd) with subcommands
in "net".
Now making it more useful for windows users might be a good idea, but is'nt replacing the older commands with windows style commands a bad idea? the "net" command does not take a standard "-" or "--" for parameters, also we now have to worry about our "/"s and "\"es. With everything in the GUI already looking like windows , why do we want our CLI to be spoiled too? Are we more worried about existing linux users or the people who probably might migrate from windows?
And usually our eye hurts because of backlighting and the fixed focal length you have to hold for a long time. In this case they dont have a backlight and so may be better for your eyes/
The article clearly says that they are not paying SCO a dime. Maybe the companies that paid were Microsoft and Sun?
BTW this is a clear win for HP against both IBM and Dell. Their salesmen can say stuff like "See you are 100% protected, we give a complete solution (unlike dell)etc."
Unless they end up having to actually (extremely unprobable) pay the 699 for all customers.
That we have finally found the limits of Murphys law? If I understand the article, you can store data on subatomic particles with the electrons used as the cable to transmit the information out? So this means each atom stores an Individual bit? And that any computer that operates at a higher data density would be a Quantum computer?
Also that I can store 6*10^23 bits inside a few grams of silicon?
Slashdot Mirror
LEO satellites have a time perioed of a few hours, so they would come overhead every hour or two. So I dont think time is a big problem, I am sure you can aim a laser in less time than an aircraft takes to climb from 30,00 feet (i think F15 should normally fly at this altitude?) to 80,000 feet.
And with an aircraft, you have to worry about having a plane constantly in air, backup planes , inflight refuelling etc. With a laser, you just have a few ground stations automatically tracking all your satellites and the lasers on the ready, press a button and the satellite has a hole in its sun sheild.
But then again the laser must have had some problems, otherwise by now we should have seen it deployed already.
I cant find the relevant article, but after the collapse of the Soviet Union, they found that our Comrades were far ahead of US. They apparently had tested laser based satellite/missile destruction systems etc. US was following the same path (Star wars ?), just that they were a few years behind the Soviests.
So you probably dont really need a rocket to bring down a satellite.And laser based communication was used to talk to the moon mission, so the improvement required is only to reduce the cone angle slightly and to increase the power by lots (or use lots of small lasers aimed at the same satellite at the same time).
Not really true. Atleast not really true historically. Remember the Fat binaries ? Apple actually supported two different architectures with the same binary , without the user even having to know about it. It true that if they dint do that they would have been dead right now, but still its a histrorical counterexample to the arguement.
Yeah right!! Those bloody idiots on wallstreet are still buying those stocks. (SCO up .011 % now).
Ofcourse this would affect the radiator mainly.This will in no way by itself make engines better.But I was thinking that this would allow you to use newer kind of materials for the engine, allow you to put in larger/smaller cylinders, allow you to make the cylinders in odd shapes etc. etc.
This indirectly would make the engines run better and smaller. This technology was developed for Chips but I think this should be portable to car engines too (the only difference from the current water cooling tech i can see is that they got the pipes to very small sizes and removed the mechanical pump).
Also if this scales to really high temperatures then aircraft engines could get a lot better since the main limitation they have is materials.But I suppose that would be hoping for too much from a technology which is still a water based cooling technology (maybe someone could change the cooling fluid?).
I think a more immediate use would be in Internal Combustion engines. A whole lot of heat is produced by engine (almost 40 percent of total fuel consumption) , this method would be ideal in those situations if the 1000 watts/cm^2 is correct. Engines would become a whole lot smaller and efficient.
They finally seem to have a solution to the "too many windows open" (not apple specific, I have not even used one) problem. I hate to have to hold down Alt-Tab (i like to use the keyboard) and then look around to find which window I want to switch to. Because of this, I tend to have a max of two or three windows open at a time. No OS really helps here, though in Linux I use multiple desktops to group tasks of similar kind (Desktop one for work, two playing music, three for a root login in case I want to mount NFS etc. ) and I can easily switch when the windows hierrarchy looks like a tree.
Take a look at the Apple solution called Expose . They use F9 to cascade all windows (like opera), another key to grey out all windows of other apps than the one you are using. Press F10 and all photoshop apps are highlighted while all other apps fade into grey. In linux Gimp could benefit from such a feature.
Sure, you gave me permission to hack your system , but microsoft did not.
Dont let the "pstohtml"ish webpage con you. And dont let them convince you that they are not law enforcement.I'm sure they are in with Ashcroft.
Note the term Hacker in all the writeups, the incorrect use term the establishment uses to paint Linux hackers black ? Note the referral program ? Trust nobody!!
On a serious note, suppose somebody actually cracks their server, and they hold the information secret, will they be an accesory to crime ? Surely enough , just because nobody compained about a murder it does not become a non-crime. So with convictions for cracking being higher than manslaughter, what is to stop a third party from dragging everyone to court? Even if they dont cause any harm to these guys, they surely broke DMCA laws, by harming microsoft? No?
I have the exact opposite point of view. These routine news items like awards shouldnt be on slashdot frontpage at all. Look at slashdot, everytime a hugo award is given out its on slashdot (even though after harry potter getting it, its no more fun). Every time an Ig Nobel is announced its a story (Ok those are fun). Now Nobel awards are frontpage material. ..Maybe comments on stories add some informational value to the stories..
From the linked article
The physics award will be announced Tuesday and the chemistry and economics awards Wednesday in the Swedish capital.
This potentially means two more frontpage stories on slashdot and 3 if the Economics award goes to behavioral economics or computational (is there a term like this) economics.
This makes no sense because I can read it on newspapers anyway, no paper is going to miss the nobel awards. And the invention was in 70s and its not like slammer that we must know that NOW before its too late. Sorry for ranting
BTW did slashdot put up stories on fields medals??
Thats probably the whole idea . They most probably want to see if people search more if you give a counter to them. In the linked article they clearly say that this idea was inspired by frequent flier miles in air travel.
Ahh!!! I bow to the master!!!!
Just out of curiosity, who is your favorite author?
Of course not. My school library had a huge lot of them. I have read all the Terrance dicks books in the collection (Ok I never kept track, but i cant seem to find any I have not read) and many of the others I found in the town library.The books being small I could borrow and finish it off the same day and return it the next day. Kept it up for around a year and a half.
So probably read not even 1/3rd of the total, if you say 1400 is the actual number of books.
Am I the only one around here who has never seen Doctor Who on TV but have read all the books? My favorite was Terrance Dicks books, usally large size fonts, clear and funny narration and the best stories. !!!
Hope to see it this time. BTW. Any idea if BBC will put it on the International channel instead of all the local ones?
"By so strongly defending the controversial GPL, IBM is also defending a questionable licensing scheme through which it can avoid providing software indemnification for its customers. We continue to urge IBM to provide legal indemnification for its Linux customers"
What they are saying is that all software should have warranties
This is the funniest part.IBM is not not a Linux vendor. They get their Linux from Redhat/suse and bundles it along with services. Since they are not a vendor, they really dont have to worry about software indemnification (Redhat may or may not ). But SCO on the other hand was a Linux vendor. So by saying that Linux vendors should be providing warranties, SCO has more cause to worry than IBM.
IF a court actually rules that software needs warranties along with it, then not only is linux affected, but ALL software business changes. Microsoft may have to pay users for all the viruses they got infected with.
Hmm... Did'nt you get it backwards ?
A DDos is when multiple people attack one entity. If SCO starts to sue every IBM customer , they would be DDosing themselves. You cannot assume that if SCO sues an IBM customer he will immediatly sue IBM. Even if the success rate is something like 90 percent, IBM will withstand it better since they are a larger company. SCO is going to be buried in legal fees if they ever try this stunt.
Linux is far from being the only bootable CD environment.
Ever bought a server from HP, Dell etc? They give you a CD with all the relevant drivers etc. You boot into the CD, it detects the devices, copies drivers onto harddisk, writes a kickstart file etc. Then you reboot to a normal OS CD and install proceeds fine. HP uses Win95 (98) for their first bootable CD , Dell uses NT etc. the boot environment is a full OS (with intentionally crippled networking etc.). The latest from MS is based on winXP and is called WinPE". If you are big enough and can pay enough, then you can license it and then modify it whatever way you please.
If you are going to use a diffraction grating, then why dont you use a CD ? A CD makes a very good refraction grating (thats why you see a rainbow on its data side), and with those Yamaha Cd burners which you could use to draw pictures on the data side of a CD, it should be trivial to make a grating with the exact properties you want
Anyway the point about this experiment was I think to measure the speed/wavelength of light as directly as possible without any complicated equations etc. If you are going to use complicated methods, then what about using interference? Just get two laser pointers of different colours and shine them and use a microscope
Speed of light should be the same as the speed of EM waves, if then there could be a way of measuring this. Just get a long enought network cable, keep varying the transmission frequency on the cable, 10 MB, 100 MB etc. till the echo effect starts affecting you.That distance should be something like the time taken for the reflected shound wave to be half a phase wrong. So you know the frequency, you know the cable length and hence you can calculate the speed of the EM wave in the cable. /(1/2*10^5) = 8 *10^7 metres/second or one fourth the actual value.
Any idea if this is correct? I know that on a 10 MBps network the signal cant go above 200 m , so the speed of light from this method is 200*2
The BBC article had almost no information, what it says is equivalent to "meteor strikes california"(orissa is the name of a state), no explanation of how big, where exactly etc. Indian newspapers have no information either. Finally found this article on Indian Express.
Also I dont think there would be an official collection of funds. 8 people injured is not even newsworthy for Orissa. Every year atleast a 100 die in floods. An occasional drought or an earthquake or even a heat wave kills more. I'm sorry if I seem uncaring , but that seems the way it is
Apparently somebody actually died and others are in hospital. Also it hit more than one village and the villagers collected a 5.7 kg (approx 12 pounds) rock and have kept it at the local "panchayat" office ( village governence office). So somebody lost a fortune on this, but they have been nice to turn it to the officials.
5) A new "net" command has been added. It is somewhat similar to the "net" command in windows. Eventually we plan to replace numerous other utilities (such as smbpasswd) with subcommands in "net".
Now making it more useful for windows users might be a good idea, but is'nt replacing the older commands with windows style commands a bad idea? the "net" command does not take a standard "-" or "--" for parameters, also we now have to worry about our "/"s and "\"es. With everything in the GUI already looking like windows , why do we want our CLI to be spoiled too? Are we more worried about existing linux users or the people who probably might migrate from windows?
And usually our eye hurts because of backlighting and the fixed focal length you have to hold for a long time. In this case they dont have a backlight and so may be better for your eyes/
Are you not ashamed to read a paper that has a BonziBuddy ad? IT news section that too...
The article clearly says that they are not paying SCO a dime. Maybe the companies that paid were Microsoft and Sun?
BTW this is a clear win for HP against both IBM and Dell. Their salesmen can say stuff like "See you are 100% protected, we give a complete solution (unlike dell)etc."
Unless they end up having to actually (extremely unprobable) pay the 699 for all customers.
That we have finally found the limits of Murphys law? If I understand the article, you can store data on subatomic particles with the electrons used as the cable to transmit the information out? So this means each atom stores an Individual bit? And that any computer that operates at a higher data density would be a Quantum computer?
Also that I can store 6*10^23 bits inside a few grams of silicon?