Actually take off is not at all difficult, on my first flying lesson I got the aircraft safely off the ground, it is landing that is difficult. Even experienced pilots do not take it for granted, landing requires excellent control of the aircraft at low speeds.
Regarding automated takeoff and landing. Your knowledge is incorrect, automated systems have been developed for several big jets, it was standard on Concorde and helped greatly with the initial testing.
So you thesis that jamming GPS can cause smart bombs to be less precise, but since "guidance computers" are "well developed" it really wouldn't make much difference.
Hmmm, ok.
Jamming GPS would hurt assets on the ground more than it would prevent smart bombs from reaching their targets. The reason is without GPS troops have to rely on several methods to calculate position, each of them has a relatively large error, not to mention human factors. For example ded (deduced) reckoning relies on identification of known features and comparison with a map; obviously this ain't much use in the desert.
Smart bombs such as the Boeing JDAM tailkit, which attaches to a 500/1000/2000lb dumb bomb, rely on GPS and inertial guidance. The aircraft dropping the bomb communicates its position to the bomb at time of drop, without GPS the bomb then uses its inertial guidance system to calculate relative position to the drop point and therefore its absolute position. Inertial guidance works by using gyroscopes to fix the position of a plane so that an orthogonal line intersects some known point in space, the gyroscopes keep the plane stable no matter how it is accelerated in space, the distance the plane moves to stay in position is measured by the guidance computer to calulate relative position. Modern initertial guidance systems are extremely accurate, accurate enough to position Ohio Class Ballastic Missile Subs that would have to surface to use GPS.
I've also accumulated a huge collection of vinyl and CD's. As a teenager 75% of my money was spent on albums. Over the years I have purchased my favorite records many times after the media wore out or simply went AWOL, at the last count I've purchased Abbey Road five times.
These days I pay for music if it's available at allofmp3.com because it's mp3 and it's cheap. Otherwise I get it P2P. Yes, it's stealing and yes, I sleep soundly at night.
I have a PhD in CS, I don't expect a pass on the tech interview, in fact I look forward to it because it gives me a chance to differentiate myself from the other candidates. I don't like the canned programming tests very much because they are not good indicators of talent, but if I want the gig then it's worth it for me to jump through a few hoops.
Frankly it doesn't surprise me that some well known members of the programming community feel tech interviews are beneath them. I've met a few of them and they have planet sized egos. While they obviously have great skill, I wonder if a few fear coming up short in some technical areas?
Yes, they realised that killing members of the public was a PR mistake, so they started to hit economic targets such as the City of London. The Baltic Exchange bomb caused around one billion UKP worth of damage. Some would argue that the economic bombing campaign was the catalyst for the Good Friday Agreement. Unfortunately Governments care far more about money than people, and yes I know that's a cynical statement, but it's based on living in England during the IRA's campaign of the 70's and 80's and visiting family in the war-torn parts of Belfast during the same period.
A few others have mentioned that splinter groups of the IRA would not engage is bombing soft targets. These splinter groups are the 'Real' IRA and the Continuity IRA, and I wouldn't be so sure that they won't start bombing, especially given the continued non-implementation of the Good riday Agreement.
Concorde first flew in the late 60's. It's first commercial flight was 1976. One more time- the delay in getting a U.S. flight certificate resulted in a lack of orders. As I explained the first time around (and you missed), the aircraft was built to fly trans-Atlantic, the U.S. stopped this happening at first (hence the Bahrain route) and later granted extremely restricted certificates.
I hope the project is successful, however, if it doesn't get buy-in from the beginning it could suffer the same fate as Concorde. Although Concorde was a technical marvel, the U.S. did everything it could to scuttle the project, for example, its flight certificate was delayed by the FAA until it was sure the project was busted. The premise of Concorde was fast trans-atlantic flight, but its first scheduled route was Heathrow to Bahrain because countries followed the U.S. and refused flight certificates. By the time the U.S. did grant a heavily restricted certification the lack of orders had made continued manufacture untenable. It's quite ironic that the U.S. refused certification on environmental grounds.
I'm sure there will be the usual Concorde counter-arguments posted here, some of them are true. It's true that it was a fuel hog and it's true that it was noisy. But if 500 were built instead of just 16 supersonic flight would have become much cheaper. With only 16 all parts were custom built and very expensive. Heck the Concorde has more in common with the SR-71 than a 737. It boggles the mind to think that it cruised faster than an F-18's top speed.
My father worked on the project from the beginning, for those interested here's a link to a couple of photos he took when Concorde 002 made its maiden flight-
It takes more than a recompile to port an O.S. To get the best out of the processor the Kernel must be adapted to make use of the native memory management, process switching, thead synchronization and interrupt handling. The 64 bit Pentium is backwards compatible with the 32 bit, therefore a recompile suffices but is not optimal.
but most programs haven't even got the ability to hyperthread
How does a program "hyperthread"? Did you mean "thread"? but decide to use the former because it sounds cooler? Hyperthreading doesn't result any concurrent processing, it's a hardware scheme in with the processor's archictectural state is replicated in order to speed up context switching between threads. That's very different from replicating the whole CPU core.
Slashdot Mirror
Thank you.
DUPE DUPE DUPE
Actually baseline JPEG can be lossy, but there does exist a JPEG variant with lossless compression.
Sons of bitches
Film is scanned at 4,000 lines before being down-converted to DVD & HD.
Wasn't he the well-endowed lord of the dark-side?
Some a-hole will lodge a rock in its gears within the first 6 months.
No more phishing! We should enact laws against spam too and solve that problem.
Actually take off is not at all difficult, on my first flying lesson I got the aircraft safely off the ground, it is landing that is difficult. Even experienced pilots do not take it for granted, landing requires excellent control of the aircraft at low speeds.
Regarding automated takeoff and landing. Your knowledge is incorrect, automated systems have been developed for several big jets, it was standard on Concorde and helped greatly with the initial testing.
So you thesis that jamming GPS can cause smart bombs to be less precise, but since "guidance computers" are "well developed" it really wouldn't make much difference.
Hmmm, ok.
Jamming GPS would hurt assets on the ground more than it would prevent smart bombs from reaching their targets. The reason is without GPS troops have to rely on several methods to calculate position, each of them has a relatively large error, not to mention human factors. For example ded (deduced) reckoning relies on identification of known features and comparison with a map; obviously this ain't much use in the desert.
Smart bombs such as the Boeing JDAM tailkit, which attaches to a 500/1000/2000lb dumb bomb, rely on GPS and inertial guidance. The aircraft dropping the bomb communicates its position to the bomb at time of drop, without GPS the bomb then uses its inertial guidance system to calculate relative position to the drop point and therefore its absolute position. Inertial guidance works by using gyroscopes to fix the position of a plane so that an orthogonal line intersects some known point in space, the gyroscopes keep the plane stable no matter how it is accelerated in space, the distance the plane moves to stay in position is measured by the guidance computer to calulate relative position. Modern initertial guidance systems are extremely accurate, accurate enough to position Ohio Class Ballastic Missile Subs that would have to surface to use GPS.
http://forums.sportsphds.com/viewpost.php?postID=2 7535
I've also accumulated a huge collection of vinyl and CD's. As a teenager 75% of my money was spent on albums. Over the years I have purchased my favorite records many times after the media wore out or simply went AWOL, at the last count I've purchased Abbey Road five times.
These days I pay for music if it's available at allofmp3.com because it's mp3 and it's cheap. Otherwise I get it P2P. Yes, it's stealing and yes, I sleep soundly at night.
20 kilometers per hour!
OMG, that's incredible.
I have a pair of Tivo's that quite happily use Vonage. I don't see why you would keep a landline just for your HD Tivo.
Freebird!
I have a PhD in CS, I don't expect a pass on the tech interview, in fact I look forward to it because it gives me a chance to differentiate myself from the other candidates. I don't like the canned programming tests very much because they are not good indicators of talent, but if I want the gig then it's worth it for me to jump through a few hoops.
Frankly it doesn't surprise me that some well known members of the programming community feel tech interviews are beneath them. I've met a few of them and they have planet sized egos. While they obviously have great skill, I wonder if a few fear coming up short in some technical areas?
Yes, they realised that killing members of the public was a PR mistake, so they started to hit economic targets such as the City of London. The Baltic Exchange bomb caused around one billion UKP worth of damage. Some would argue that the economic bombing campaign was the catalyst for the Good Friday Agreement. Unfortunately Governments care far more about money than people, and yes I know that's a cynical statement, but it's based on living in England during the IRA's campaign of the 70's and 80's and visiting family in the war-torn parts of Belfast during the same period.
A few others have mentioned that splinter groups of the IRA would not engage is bombing soft targets. These splinter groups are the 'Real' IRA and the Continuity IRA, and I wouldn't be so sure that they won't start bombing, especially given the continued non-implementation of the Good riday Agreement.
ftp://latte.com/NorwayOpen.doc
masquerading as a story. Even 60 Minutes is doing it. Sad. Very sad.
BTW I'm also a white male with larger than average head who also scores very high on standardised tests.
Thanks for that. For a minute I thought it was a smart guy versus an average guy.
Word to the wise- in the future let us decide who's smart.
Concorde first flew in the late 60's. It's first commercial flight was 1976. One more time- the delay in getting a U.S. flight certificate resulted in a lack of orders. As I explained the first time around (and you missed), the aircraft was built to fly trans-Atlantic, the U.S. stopped this happening at first (hence the Bahrain route) and later granted extremely restricted certificates.
These are the facts.
Account of flying Concorde-
m isc/browse_frm/thread/6cfca3d85e1ce16/dd8e1de657a9 0c61?q=concorde+flight+experience&rnum=1&hl=en#dd8 e1de657a90c61
http://groups-beta.google.com/group/rec.aviation.
I hope the project is successful, however, if it doesn't get buy-in from the beginning it could suffer the same fate as Concorde. Although Concorde was a technical marvel, the U.S. did everything it could to scuttle the project, for example, its flight certificate was delayed by the FAA until it was sure the project was busted. The premise of Concorde was fast trans-atlantic flight, but its first scheduled route was Heathrow to Bahrain because countries followed the U.S. and refused flight certificates. By the time the U.S. did grant a heavily restricted certification the lack of orders had made continued manufacture untenable. It's quite ironic that the U.S. refused certification on environmental grounds.
t
I'm sure there will be the usual Concorde counter-arguments posted here, some of them are true. It's true that it was a fuel hog and it's true that it was noisy. But if 500 were built instead of just 16 supersonic flight would have become much cheaper. With only 16 all parts were custom built and very expensive. Heck the Concorde has more in common with the SR-71 than a 737. It boggles the mind to think that it cruised faster than an F-18's top speed.
My father worked on the project from the beginning, for those interested here's a link to a couple of photos he took when Concorde 002 made its maiden flight-
http://latte.com/gallery/Concorde-002-First-Fligh
It takes more than a recompile to port an O.S. To get the best out of the processor the Kernel must be adapted to make use of the native memory management, process switching, thead synchronization and interrupt handling. The 64 bit Pentium is backwards compatible with the 32 bit, therefore a recompile suffices but is not optimal.
but most programs haven't even got the ability to hyperthread
How does a program "hyperthread"? Did you mean "thread"? but decide to use the former because it sounds cooler? Hyperthreading doesn't result any concurrent processing, it's a hardware scheme in with the processor's archictectural state is replicated in order to speed up context switching between threads. That's very different from replicating the whole CPU core.