I suspect it is far more likely that it is the quality of the heuristics used to speed up the search. These graph algorithms are very expensive and the heuristics used to speed up the searches can lead you don the wrong path (pun intended...)
For an example I have notice that mapquest directions suck even more than usual when crossing state lines, their heuristic seems to only want to cross state lines on major roads (interstates...). even when a smaller road is obviously (to a human reading a map) far superior.
I don't know if you intentionally left this out or not, but there is yet another higher quality computing system on campus. The Engineering Workstations (EWS for short), have far more reliable services than the campus wide service as well. At the time I was there (96-00) they were a mix of Solaris, HPUX and AIX, although I have heard this is changing. I did have the pleasure of using the CS department computer systems as well (did a minor in CS) and I can't say that I saw that much difference between the CS and engineering computers, other than the CS labs having a lot more horsepower...
Going through substantial changes in your life can make this happen very easily. I was an underweight cross-country runner with an enourmous appitite in high school. When I went to college I discovered 1:00AM pizza, stopped running and I started to fill out, seemed natural... I used to be 6'1" and under 120 lbs. I needed the weight, well... weight gain has momentum, over the next 3 semesters, without even realizing it, I got up to 230. I started running again, and I was back down to 185 in a few months (I have since started lifting weights and am back up to 205).
Big changes in your routine (going to college, starting full time work...) can cause this kind of thing to happen to almost anyone, the important thing is that you don't resign to being fat, and you get back to doing what works.
50% of our oil demand. (Which is about 50% too low. IMO it's time to drill in the Gulf of Mexico and Alaska and anywhere else we can find domestic supplies
I agree 100% that we should be less dependant on foriegn oil sources, but drilling everything we got now is just short sighted. If we took everything we got now, where is that going to leave us in 50(or 100, or whatever...) years when all the domestic sources run dry? Even more dependent of foriegn oil. You are dreaming if you think we will have the alternative fuels going strong enough to fill our needs by the time we run out of domestic oil.
I would rather be the last country to run out of oil, than the first. To do this we need work on using less oil, not getting more...
... That there is no middle ground. I can choose to do the stuff I enjoy, but way too much of it, or I can work a McJob at 40 hours a week.
That is about as much choice in the matter I have, jobs that are intelectually stimulating AND less than 45 hours in the average week are extremely hard to come by. So yes I have choice, but I would like an option that doesn't suck, that is what this movement is about.
As for the auction, the poster is absolutely correct: it's likely to suffer from the 'winner's curse.' The shares will be sold to the bidders with the very highest expectations for the stock value, making it unlikely that there will be a pool of even more bullish investors around to push the value of the stock higher in the future.
Not only that, but the vast majority of IPO's come back down rather substantially right after the initial ride up (and then either go up again, or bomb completely...), here is one example I read an article about this (I think it was on the fool but I can't find it now). If I was more of a risk taker, I would consider a short position on this one right after the trading starts...
I'd love to see you stick afterburners (which concorde uses) on a high bypass turbofan and expect them to do anything.
They would do just fine. As long as you design enough stall margin into the fan:)
Do a search for duct burner, it is basically an afterburner in the bypass duct. They work by the same method as an afterburner, but are much better for high bypass engines because you don't have to make the engine longer (and heavier) to use one. I don't know of any engines in production that use them, but I know that they have been tested successfully. There just really isn't a market for them... you usually want either a high-bypass efficient turbofan (subsonic flight), or a low-bypass turbofan/turbojet with an afterburner (supersonic flight).
2. More efficient turbofan engines instead of the gas-guzzling turbojets on the Concorde.
Ummm...
A low bypass turbofan (read lower efficiency) or a turbojet would do better than a high bypass (modern) engine at those speeds.
You have competing effects that you have to optimize. Fuel spent because engine is inefficient (to varying degrees), and fuel spent overcoming drag. High bypass turbofans, the efficient ones, have HUGE frontal areas, and the induced drag because of this at supersonic speeds severely outweighs the efficiency benefits gained.
From memory the bypass on the 777 varies from about 5-9 (depends on engine manufacturer, and version of aircraft), the only supersonic jet in the world that doesn't need an afterburner to go supersonic is the F-22, it's bypass ratio is under 2 (again from memory). If I had my way, a future supersonic transport would have a low bypass turbofan or turbojet (same as a bypass 1 turbofan) sized such that an augmenter is not needed.
BTW, the Concorde engines aren't guzzlers because they are turbojets, it is because it is augmented for the duration of supersonic flight.
(yes I am an aerospace engineer at a jet engine company...)
voters can stage an "absentee vote" protest to show their opposition to the electronic system.
I like that idea, but you will never get enough people to make it work...
I really think that the only way these things will ever get taken out of use is if someone makes a VERY obvious hack of a not so important office (to minimise damages...), something along the lines of 100% of the votes for county clerk going to the write in cannidate 'Billy Gates'
I am not huge at 6'1", but I am tall enough to cause problems, nobody (well very few...) who is 5'5" has ever experienced being over 6', but...
I was 5'6" for a couple years (pause before growth spurt, late growth spurt too...). I remember being 5'6", it wasn't that bad.
I think ideal is 5'10"-5'11" you are just over average and therefore have little difficulty in reaching the top shelf, etc... but you also don't lack head room in most cars and other pain in the ass stuff...
While they claim that certain variables like weight, gender, etc. were controlled
You really can't control all that, you just have to look at a large enough chunk of people to be confidant.
For instance, I would not be the least bit surprised if tall people got better grades in school on average (or if they got more attention in class leading to the better grades). Like it or not, this is just more evidence that appearances , while not necessarily important in all encounters, do matter overall...
Slashdot Mirror
While he was at MIT, Frank worked on a team that built several simple prototypes of reversible chips.
It has at least gotten to the chip level so far...
> 1. Never trust mechanics
> 2. When someone tells me a certain mechanic can be trusted, refer to rule #1.
I'm a mechanic =(
I don't believe you...
I suspect it is far more likely that it is the quality of the heuristics used to speed up the search. These graph algorithms are very expensive and the heuristics used to speed up the searches can lead you don the wrong path (pun intended...)
For an example I have notice that mapquest directions suck even more than usual when crossing state lines, their heuristic seems to only want to cross state lines on major roads (interstates...). even when a smaller road is obviously (to a human reading a map) far superior.
UIUC engineering grad here...
I don't know if you intentionally left this out or not, but there is yet another higher quality computing system on campus. The Engineering Workstations (EWS for short), have far more reliable services than the campus wide service as well. At the time I was there (96-00) they were a mix of Solaris, HPUX and AIX, although I have heard this is changing. I did have the pleasure of using the CS department computer systems as well (did a minor in CS) and I can't say that I saw that much difference between the CS and engineering computers, other than the CS labs having a lot more horsepower...
Going through substantial changes in your life can make this happen very easily. I was an underweight cross-country runner with an enourmous appitite in high school. When I went to college I discovered 1:00AM pizza, stopped running and I started to fill out, seemed natural... I used to be 6'1" and under 120 lbs. I needed the weight, well... weight gain has momentum, over the next 3 semesters, without even realizing it, I got up to 230. I started running again, and I was back down to 185 in a few months (I have since started lifting weights and am back up to 205).
Big changes in your routine (going to college, starting full time work...) can cause this kind of thing to happen to almost anyone, the important thing is that you don't resign to being fat, and you get back to doing what works.
How does that change the question? Can't you theoretically get talk radio content over, say, the Internet?
While driving?
Jesse Venture was having a fight with Rep. Rangle about that point...
I agree with Jesse about a lot of stuff, that included...
50% of our oil demand. (Which is about 50% too low. IMO it's time to drill in the Gulf of Mexico and Alaska and anywhere else we can find domestic supplies
I agree 100% that we should be less dependant on foriegn oil sources, but drilling everything we got now is just short sighted. If we took everything we got now, where is that going to leave us in 50(or 100, or whatever...) years when all the domestic sources run dry? Even more dependent of foriegn oil. You are dreaming if you think we will have the alternative fuels going strong enough to fill our needs by the time we run out of domestic oil.
I would rather be the last country to run out of oil, than the first. To do this we need work on using less oil, not getting more...
... That there is no middle ground. I can choose to do the stuff I enjoy, but way too much of it, or I can work a McJob at 40 hours a week.
That is about as much choice in the matter I have, jobs that are intelectually stimulating AND less than 45 hours in the average week are extremely hard to come by. So yes I have choice, but I would like an option that doesn't suck, that is what this movement is about.
Does Triangle Man beat Hydrogen Man?
(is Hydrogen Man Particle Man?)
As for the auction, the poster is absolutely correct: it's likely to suffer from the 'winner's curse.' The shares will be sold to the bidders with the very highest expectations for the stock value, making it unlikely that there will be a pool of even more bullish investors around to push the value of the stock higher in the future.
Not only that, but the vast majority of IPO's come back down rather substantially right after the initial ride up (and then either go up again, or bomb completely...), here is one example I read an article about this (I think it was on the fool but I can't find it now). If I was more of a risk taker, I would consider a short position on this one right after the trading starts...
I disagree, I have been using Firebird for months and I feel fine!
(paid for by friends of Mozilla)
Have you got a link, I googled and couldn't find anything about supercruise on aircraft other than the F-22.
(I specifically looked for Eurofighter and Gripen stuff...)
If I am mistaken I would like to know for sure, but I can't find a link for either of these aircraft that claims suppercruise capability...
Could you please point me towards one?
Concorde flew at Mach 2.0 for the duration of the flight that I was on WITHOUT afterburner.
I was mistaken, the afterburners are off... They are still responsible for a large portion of the fuel burn though...
According to this article Boeing might have a super sonic plane in service around 2008
.98.
With current technology you can not eliminate the sonic boom (you can make is slightly weaker...).
The way the sonic cruiser does it is to not be supersonic, it says right in the article you link that it flies at mach
I'd love to see you stick afterburners (which concorde uses) on a high bypass turbofan and expect them to do anything.
:)
They would do just fine. As long as you design enough stall margin into the fan
Do a search for duct burner, it is basically an afterburner in the bypass duct. They work by the same method as an afterburner, but are much better for high bypass engines because you don't have to make the engine longer (and heavier) to use one. I don't know of any engines in production that use them, but I know that they have been tested successfully. There just really isn't a market for them... you usually want either a high-bypass efficient turbofan (subsonic flight), or a low-bypass turbofan/turbojet with an afterburner (supersonic flight).
2. More efficient turbofan engines instead of the gas-guzzling turbojets on the Concorde.
Ummm...
A low bypass turbofan (read lower efficiency) or a turbojet would do better than a high bypass (modern) engine at those speeds.
You have competing effects that you have to optimize. Fuel spent because engine is inefficient (to varying degrees), and fuel spent overcoming drag. High bypass turbofans, the efficient ones, have HUGE frontal areas, and the induced drag because of this at supersonic speeds severely outweighs the efficiency benefits gained.
From memory the bypass on the 777 varies from about 5-9 (depends on engine manufacturer, and version of aircraft), the only supersonic jet in the world that doesn't need an afterburner to go supersonic is the F-22, it's bypass ratio is under 2 (again from memory). If I had my way, a future supersonic transport would have a low bypass turbofan or turbojet (same as a bypass 1 turbofan) sized such that an augmenter is not needed.
BTW, the Concorde engines aren't guzzlers because they are turbojets, it is because it is augmented for the duration of supersonic flight.
(yes I am an aerospace engineer at a jet engine company...)
voters can stage an "absentee vote" protest to show their opposition to the electronic system.
I like that idea, but you will never get enough people to make it work...
I really think that the only way these things will ever get taken out of use is if someone makes a VERY obvious hack of a not so important office (to minimise damages...), something along the lines of 100% of the votes for county clerk going to the write in cannidate 'Billy Gates'
I am not huge at 6'1", but I am tall enough to cause problems, nobody (well very few...) who is 5'5" has ever experienced being over 6', but...
I was 5'6" for a couple years (pause before growth spurt, late growth spurt too...). I remember being 5'6", it wasn't that bad.
I think ideal is 5'10"-5'11" you are just over average and therefore have little difficulty in reaching the top shelf, etc... but you also don't lack head room in most cars and other pain in the ass stuff...
While they claim that certain variables like weight, gender, etc. were controlled
You really can't control all that, you just have to look at a large enough chunk of people to be confidant.
For instance, I would not be the least bit surprised if tall people got better grades in school on average (or if they got more attention in class leading to the better grades). Like it or not, this is just more evidence that appearances , while not necessarily important in all encounters, do matter overall...
here is an article on the effects of height in presidential elections.
A couple of the choice tidbits...
from 1904-1984 80% of the winning canidates were the taller.
And only 2 POTUS have been short compaired to average heights of the times...
Makes me glad to be 6'1"...
Were the crusades 'wars on behalf of God'?
Correct me if I am wrong, but the 10 cammandments were present in the Old Testament, and are are there for part of Judaism...
Also, Islam and Christianity are both derived from Judaism and share these 10 commandments...
Thou Shalt Not Kill