Hybrid motors are available to those without a high power rocketry certification. Look at SkyRipper Ssytems and their 29mm motors that have 2 loads for them in the G motor range.
Only requirement is that you be 16 (18 in some states) to purchase the nitrous oxide.
I don't think the explosion that happened was due to a hybrid as much as it was that they were loading liquid nitrous in 99 degree F from a large (3000 pound) tank to the smaller, flight tank. If they were not careful and kept the tanks cooled to below 97 degrees F (critical temp for nitrous) then they would never have transferred any liquid nitrous, only gaseous nitrous. If they were measuring the fill rate by weight and not pressure in that situation, they could have over-pressurized the flight tank which would rupture and send shrapnel for 100's of feet in all directions.
The problem is that the teachers/staff have no rights to give to Turnitin. The students hold all rights to their own works and the students were never asked to agree to those clauses. I think that it is a clear violation of copyright.
0.45% to 0.49% is a little half percent. 0.5% is a full half percent and 0.51% to 0.54% are big half percents.
Its like my father told me (civil engineer) "The glass is not half empty nor half full...the glass was made too big."
-Aaron
You'll have to remember to manually change the time each time it is supposed to change and then fix it when the broken version of 2K tries to change it for you.
IBM has had this for years. I was called the RS/6000 SP2. Great system. They have since replaced it with the Cluster1600 and with BlueGene/L Look at the top500 http://www.top500.org/ and you'll see they're up there.
It was my understanding, but I could be wrong and have been wrong in the past, that all the BlueGene/L systems were Power5 based. Looking at the wiki http://en.wikipedia.org/wiki/Blue_Gene it looks like its a pair of dedicated PPC 440 chips per node (I/O or compute)
Anyway you look at it, IBM has the lion share of the top500 and a good part of those are Power5 based.
While I can't give you exact numbers, when I went to a briefing this past summer, I was told that the Power6 chips would be about 50% faster than the existing Power5+ chips. Also, they would be multiple cores on a MCM (MultiChip Module) so that it appears to be an 8 core CPU.
If you want to see what kind of performance a Power5 and Power5+ processor can do, go look at http://www.top500.org/ 3 of the top 5 are Power5/Power5+ based and 4 of the top 5 are by IBM.
Except Tamiflu was in the works for years and years before the "bird flu" was even known about. Tamiflu has been around since at least 1998 and I think for several years before that but I don't recall exactly. You can look up the patent and it should show exactly when it was patented. I wouldn't be surprised if it was a good decade before the "bird flu" came about.
CISC has dominated RISC so much that 4 out of the top 5 computers in the top500.org list are RISC? (the one that isn't RISC is a Opteron Dual Core cluster)
http://www.top500.org/list/2006/11/100
I had no idea that CISC was beating RISC so badly.
As a side note, the 4 RISC systems in the top 5 were made by IBM.
-Aaron
The rocketry community has had this under control for a long time. You can buy commercially made igniters for about $2 each that will fire nearly instantly with the application of a 12v power source. You can also buy (or make) low voltage igniters (called e-matches) for about the same price. In the US, you are required to have a Low Explosive User Permit(LEUP) to buy/store/transport e-matches but if you make them yourself and use them on your own property, then you only have to store them in a type-3 magazine (a good metal ammo box lined with 1/4 plywood counts as a type-3 magazine) In a pinch, you could use some 31 gauge nichrome wire that is connected to a 12v source but that will take 1 or 2 seconds to heat up.
As someone with an overgrown lawn and no kids....
hiring a neighborhood kid to mow your lawn for you is not only a good investment in your time and money but it also helps the neighborhood kid with $$$
Dish Network owns EchoStar. Does this mean all the Dish customers are screwed as well?
I'm all for justice, but disabling all the existing customer's devices seems a bit overkill to me.
-Aaron
I know its apples (not literally) and oranges but IBM's Power5 processor already has quad core and will have an 8-core sometime next year(Power6).
The p5-550Q has 2 chips, quad core each for 8 cores with each core running at 1.65Ghz (PPC RISC) 64KB of L1, 8MB of L2(shared) and 144MB of L3(shared).The biggest Power5 based system I've seen is the p5-595 with 64 processors, each running 2.3Ghz with 64KB of L1, 64MB of L2(shared) and 1152MB of L3(shared). Keep in mind, this is 1 server.
I watched a show the other night which talked about how the US pulled 14 TITAN II missiles out of thier silos, relocated them to Vandenburg AirForce Base, removed the warhead and changed them over to carry a payload into space. 13 out of 14 were launched and 13 out of 13 were successful. The last TITAN II missile was kept as a static display at Vandenburg AFB.
I think it all depends on what missiles are being re-used for payload launches. The TITAN II missiles were good for it because they were man-rated. They were designed from the beginning to be reliable enough to carry a man into space (Gemini missions)
-Aaron
ICANN controls the DNS root servers but ARINhttp://www.arin.net/ controls IP address assignments in the US. There are other groups that control IP address assignments in other areas (RIPE being one of them)
-Aaron
As they were created by NASA, they are (or should be) in the public domain.
Any audio/video NASA produces is automatically entered into the public domain (as should anything created by the goverment)
I doubt very highly that the print-screen function would be removed entirely.
I work in a FDA controlled company. Part of that FDA controlling is that we must write test cases to validate software. The output of those test cases are almost always a print-screen.
-Aaron
The Cook County I know of is most of Chicago. I used to live in a not-so-nice part of town where there was more than once a cop car was striped bare (tires, light bar, lights, siren, etc) when the cop when into a house. He came out 10 to 15 minutes later and started swearing.
A laptop is EASY by comparison.
Several years ago, while talking with IBM about patents, they told me that the patent database was run on IBM hardware at an IBM site. IBM had more patents then everyone else combine.
That was impressive and scary all at the same time.
I guess thats the reason for the saying "IBM's big bag-o-patents"
Slashdot Mirror
Hybrid motors are available to those without a high power rocketry certification. Look at SkyRipper Ssytems and their 29mm motors that have 2 loads for them in the G motor range.
http://www.skyrippersystems.com/documents/performa nceinfo.htm
Only requirement is that you be 16 (18 in some states) to purchase the nitrous oxide. I don't think the explosion that happened was due to a hybrid as much as it was that they were loading liquid nitrous in 99 degree F from a large (3000 pound) tank to the smaller, flight tank. If they were not careful and kept the tanks cooled to below 97 degrees F (critical temp for nitrous) then they would never have transferred any liquid nitrous, only gaseous nitrous. If they were measuring the fill rate by weight and not pressure in that situation, they could have over-pressurized the flight tank which would rupture and send shrapnel for 100's of feet in all directions.
My thoughts go out to all those involved.
-AaronThe problem is that the teachers/staff have no rights to give to Turnitin. The students hold all rights to their own works and the students were never asked to agree to those clauses. I think that it is a clear violation of copyright.
0.45% to 0.49% is a little half percent. 0.5% is a full half percent and 0.51% to 0.54% are big half percents. Its like my father told me (civil engineer) "The glass is not half empty nor half full...the glass was made too big." -Aaron
Wasn't it just announced that Microsoft would not be releasing a patch to anything less than XP for the new TimeZone changes that happen this spring?
http://support.microsoft.com/kb/928388
You'll have to remember to manually change the time each time it is supposed to change and then fix it when the broken version of 2K tries to change it for you.-Aaron
IBM has had this for years. I was called the RS/6000 SP2. Great system. They have since replaced it with the Cluster1600 and with BlueGene/L Look at the top500 http://www.top500.org/ and you'll see they're up there.
-Aaron
It was my understanding, but I could be wrong and have been wrong in the past, that all the BlueGene/L systems were Power5 based. Looking at the wiki http://en.wikipedia.org/wiki/Blue_Gene it looks like its a pair of dedicated PPC 440 chips per node (I/O or compute)
Anyway you look at it, IBM has the lion share of the top500 and a good part of those are Power5 based.
-Aaron
While I can't give you exact numbers, when I went to a briefing this past summer, I was told that the Power6 chips would be about 50% faster than the existing Power5+ chips. Also, they would be multiple cores on a MCM (MultiChip Module) so that it appears to be an 8 core CPU.
If you want to see what kind of performance a Power5 and Power5+ processor can do, go look at http://www.top500.org/ 3 of the top 5 are Power5/Power5+ based and 4 of the top 5 are by IBM.
-Aaron
Except Tamiflu was in the works for years and years before the "bird flu" was even known about. Tamiflu has been around since at least 1998 and I think for several years before that but I don't recall exactly. You can look up the patent and it should show exactly when it was patented. I wouldn't be surprised if it was a good decade before the "bird flu" came about.
Yes, I work for Roche.
-Aaron
CISC has dominated RISC so much that 4 out of the top 5 computers in the top500.org list are RISC? (the one that isn't RISC is a Opteron Dual Core cluster) http://www.top500.org/list/2006/11/100 I had no idea that CISC was beating RISC so badly. As a side note, the 4 RISC systems in the top 5 were made by IBM. -Aaron
The rocketry community has had this under control for a long time. You can buy commercially made igniters for about $2 each that will fire nearly instantly with the application of a 12v power source. You can also buy (or make) low voltage igniters (called e-matches) for about the same price. In the US, you are required to have a Low Explosive User Permit(LEUP) to buy/store/transport e-matches but if you make them yourself and use them on your own property, then you only have to store them in a type-3 magazine (a good metal ammo box lined with 1/4 plywood counts as a type-3 magazine) In a pinch, you could use some 31 gauge nichrome wire that is connected to a 12v source but that will take 1 or 2 seconds to heat up.
As someone with an overgrown lawn and no kids.... hiring a neighborhood kid to mow your lawn for you is not only a good investment in your time and money but it also helps the neighborhood kid with $$$
Dish Network owns EchoStar. Does this mean all the Dish customers are screwed as well? I'm all for justice, but disabling all the existing customer's devices seems a bit overkill to me. -Aaron
It wont be dual core, it'll have 8 cores. The Power5 series were all dual core and the Power5Q were all quad core. -Aaron
I know its apples (not literally) and oranges but IBM's Power5 processor already has quad core and will have an 8-core sometime next year(Power6).
The p5-550Q has 2 chips, quad core each for 8 cores with each core running at 1.65Ghz (PPC RISC) 64KB of L1, 8MB of L2(shared) and 144MB of L3(shared).The biggest Power5 based system I've seen is the p5-595 with 64 processors, each running 2.3Ghz with 64KB of L1, 64MB of L2(shared) and 1152MB of L3(shared). Keep in mind, this is 1 server.
All the IBM BlueGene systems are running the Power5 processors and they are most of the http://www.top500.org/lists/2006/06
All I have to say to Intel (and AMD for that matter) is, if you build it, they will buy it (unless it's called the Itanium)
I watched a show the other night which talked about how the US pulled 14 TITAN II missiles out of thier silos, relocated them to Vandenburg AirForce Base, removed the warhead and changed them over to carry a payload into space. 13 out of 14 were launched and 13 out of 13 were successful. The last TITAN II missile was kept as a static display at Vandenburg AFB. I think it all depends on what missiles are being re-used for payload launches. The TITAN II missiles were good for it because they were man-rated. They were designed from the beginning to be reliable enough to carry a man into space (Gemini missions) -Aaron
ICANN controls the DNS root servers but ARINhttp://www.arin.net/ controls IP address assignments in the US. There are other groups that control IP address assignments in other areas (RIPE being one of them) -Aaron
As they were created by NASA, they are (or should be) in the public domain. Any audio/video NASA produces is automatically entered into the public domain (as should anything created by the goverment)
I doubt very highly that the print-screen function would be removed entirely. I work in a FDA controlled company. Part of that FDA controlling is that we must write test cases to validate software. The output of those test cases are almost always a print-screen. -Aaron
The Cook County I know of is most of Chicago. I used to live in a not-so-nice part of town where there was more than once a cop car was striped bare (tires, light bar, lights, siren, etc) when the cop when into a house. He came out 10 to 15 minutes later and started swearing. A laptop is EASY by comparison.
Several years ago, while talking with IBM about patents, they told me that the patent database was run on IBM hardware at an IBM site. IBM had more patents then everyone else combine.
That was impressive and scary all at the same time.
I guess thats the reason for the saying "IBM's big bag-o-patents"