Thank you for a post that actually talks about some thermodynamic principles. Tapping into "waste" heat does seem like an attractive idea to people who do not have an understanding of thermodynamics. My understanding is that if you try to simply strap on another heat engine like a thermocouple, you're working with a very low temperature differential which means low efficiency.
One question though. Isn't a gas turbine just another heat engine that that is governmed by the limits of any thermodynamic cycle? So would a "combined cycle" be two heat engines connected to each other? Unfortuantely my understanding of thermo is limited to one undergraduate class.
The guy who fronts the money for the PS3s and pays the homeless folks to stand in line is taking a risk and may or may not profit.
Folks who might otherwise be begging on the streets get paid to stand in a line.
What about the people who are unable to stand in line to get their PS3s due to school or a job. Thanks to the businessman these people can obtain a PS3 as long as they are willing to pay the market price.
So look at what the market has done. It's made the PS3 available to anyone who wants one and in the process it has provided profit to both the businessman and the homeless person.
So you're saying that if a door on a plane is slammed with too much force the entire airplane should be at risk? That's absolutely ridiculous. Maybe some warning stickers would have helped? Oh and hey, you know what? The floor sucked because it wasn't properly ventilated and didn't allow pressure to equalize quickly when the crappy door blew out. Even before the Turkey Airways disaster there had been an incident when the floor collapsed due to the cargo door blowing out, fortunately the airplane bar sealed the hole after only a couple of people got sucked out. That stupid Turkey Airways should have known that moving some seats around made the floor even more prone to collapse.
The outward opening door of the DC-10 was identified as a problem early on. In order for the door to be secured properly, the person closing the door had to turn the lock for an unspecified amount of time or else it would not be properly sealed. If the door was not properly sealed a little panel would not seal. In the case of pressure loss thus revealing the problem when the airplane was pressurized. Unfortunately if somone forced the door closed the panel would seal despite the fact that the door was not properly sealed. Thus McDonnell Douglas was relying on ground crew to make a critical operation that if failed could bring down the plane. This was compounded due to the fact that the floor between the cabin and baggage compartment was not properly ventilated. In the case of pressure loss in the cargo compartment, the cabin would need to depressurize quickly or else the pressure differential would cause the floor to collapse. Mcdonell Douglas knew that the door had problems since it had actually blown out during an early pressure test. They also knew that there were issues with the floor ventilation since a European aviation agency (I forget which country) had expressed concerns over it.
Lo and behold the door blows and the floor partially collapses. Fortunately only a couple of people get sucked out of the plane before the airplane bar lodged in the hole. You might think that they would fix the problem after this first incident but nope, Turkish Air 981 loses its door and the floor catastrophically collapses severing the control cables within it and the plane crashes killing everyone on board.
As to the design of the hydraulic lines, well Lockheed got it right in the L-1011, they put locks on the lines so that in the case of loss of pressure the lines were sealed so control could still be maintained. The reason they did this is because all of the hydraulic lines in the L-1011 like the DC-10 pass right next to the tail engine. Why did Lockheed know they needed this? Because they knew that ENGINES WILL INEVITABLY FAIL and tear apart and the loss of a single engine should NOT bring down a plane. So Hmm, sending all of the unprotected hydraulic lines right by an engine which will most certainly fail on some flight is stupid. The worst part isn't the flaws in the DC-10, the worst part is the criminal negligence of McDonnell douglas to not fix problems they knew were there and to not acknowledge their responsibility for the disasters.
I agree, fighting with friends is extremely satisfying. Anything that puts strain on my body and makes me feel pain makes me feel alive. Everybody who scoffs at the idea is missing out on feeling human. People forget that we've only been out of the trees for a few thousand years.
My favorite RPGs were fallout and fallout 2, very cool retro cold war/post apocalyptic sort of feel. Kind of old now but still incredible. Another game I like is an indie game called Bridge Construction Set. You're given the challenge of designing bridges to meet constraints like load, materials, and cost. Very addictive, though some of the harder ones will probably make you want to smash your laptop.
When dell gives those 750$ off coupons they boost the base price so it's not really as good as it seems. So, when buying a dell take a look at the prices when they are not offering any promotions to compare. The deals are still pretty good though, you can get a discount of 25% off or so.
The thing is, Apple's not really competing with Dell as Dell's laptop's are made inexpensiveley. Dell can't be beat on value but Apple's laptops are really nicely made with excellent keyboards and very solid cases. With IBM's laptop division gone to Lenovo, I think Apple laptops are poised to take the high end market, a great place for a company looking for large profit margins.
My roommate's theory is that the family was upset because Google was trying to use Miro's birthday as an excuse to celebrate 420 with some stoner imagery. The google logo change seems to be always for major events or people and Joan Miro is not an artist known to most people.
Fantastic, I love how cell phone makers create these fantastic fast cell phone data networks but instead of offering cheap wireless broadband they push proprietary expensive and stupid downloads that nobody wants.
I've had only a single class where powerpoint slides were used effectively. My teacher put up the slide, THEN repeated all the work that was on the slide on the blackboard.
Personally, when learning engineering stuff at least, I absolutely need to see the derivations be made real-time and not just presented on a slide. A bunch of slides with a bunch of math is incredibly incredibly boring. There's something about watching concepts get worked out on the blackboard that just clicks with my brain. If there's any teachers who teach math or engineering THROW AWAY THE POWERPOINT!
The most blatently metaphorical dream I ever had was the night before a final exam that I was really unprepared for.
I'm sitting there in front of a piano in a concert hall staring at the sheet music when it slowly dawns on me what's happening and I realize that I HAVE NO IDEA HOW TO PLAY THE PIANO!!!
I ended up with a C in the class though, so I guess I banged out a decent tune in reality.
My dad has a 60" HDTV and HD content looks INCREDIBLE. I was watching the DVD of Lost last night on the tv and although it did look pretty good, it noticeably lacked the crispness and detail of the full resolution HD broadcast. With the DVD alot of the fine detail of the plants and trees especially was gone. I personally feel that a threshold is passed between standard DVD and HD where it starts to really feel like you are looking through a window. Unfortunately I don't have 3 grand to drop on a TV set so I can only get my HD fix when I go back to my parents' house.
I really hope that format wars and DRM encumbrence, don't ruin HD for everyone.
It seems like most people look on genetic engineering to produce superior babies as a bad thing. The fact is that we as a species have pretty much stopped evolving. Who knows what the human race will have to face in the future and whether we'll be able to survive it. Why should we limit the potential of the human race?
"unsupported" games may work but to try you have to make your own "application profile" if Nvidia has not released one. Basically all this involves is specifying which mode to use for specific programs.
I'm sure its pretty annoying for the average gamer though, to edit some obscure file every time they want to play a new unprofiled game. But then again Nvidia fanboys who are crazy enough to spend 1200$ on a pair of video cards will doubtless have no problem with this.
Well considering that the website refers to an article in Russia's Pravda, which has stories called "Boriska-boy from Mars" , "Humans Learn to Fly" , "Soviet Army Fought UFOs" etc. I wouldn't lend too much credence to this.
Or who knows maybe years of exposure to radiation from atomic bomb testing has given Russians superpowers.
I've never taken any astronomy, or astrophysics courses so I really don't know what I'm talking about, but it always seemed to me like the whole dark matter thing was a big fudge to make our observations fit with current theory. So I have a few questions:
1. Is the "error" in galaxy mass consistent among different galaxies, big ones small ones, distant and close ones?
2. How do they even estimate the mass of a galaxy in the first place?
3. Are there any other observations that don't fit with current theory that would be explained by the existence by dark matter other than the unexpected rotational velocities of galaxies?
3. Shouldn't outer rim stars in a galaxy orbit slower than inner rim stars? Or do they and is that why they form spirals? (this is sort of an unrelated question but I'm pondering about galaxies right now)
This is CHINA we're talking about. ALL software in China is pirated! Do you think a news story coming from a Chinese newspaper which is run by the government is going to give the real reasons why this software is banned, particularly games related to Vietnam and games that show Taiwan as a separate country? Read between the lines! If you think this is only about piracy then you've know nothing about China.
Check out the student section. Obviously these kids know what a pain in the ass college is. Layers of disgusting crud building up on your unbagged trash cans? Just get the "Re-Bag" can which bags itself! Toilet clogged up with vomit and fecal matter? Just assemble your "UnBathroom" cardboard toilet and get back in business.
Slashdot Mirror
Thank you for a post that actually talks about some thermodynamic principles. Tapping into "waste" heat does seem like an attractive idea to people who do not have an understanding of thermodynamics. My understanding is that if you try to simply strap on another heat engine like a thermocouple, you're working with a very low temperature differential which means low efficiency.
One question though. Isn't a gas turbine just another heat engine that that is governmed by the limits of any thermodynamic cycle? So would a "combined cycle" be two heat engines connected to each other? Unfortuantely my understanding of thermo is limited to one undergraduate class.
The guy who fronts the money for the PS3s and pays the homeless folks to stand in line is taking a risk and may or may not profit.
Folks who might otherwise be begging on the streets get paid to stand in a line.
What about the people who are unable to stand in line to get their PS3s due to school or a job. Thanks to the businessman these people can obtain a PS3 as long as they are willing to pay the market price.
So look at what the market has done. It's made the PS3 available to anyone who wants one and in the process it has provided profit to both the businessman and the homeless person.
So you're saying that if a door on a plane is slammed with too much force the entire airplane should be at risk? That's absolutely ridiculous. Maybe some warning stickers would have helped? Oh and hey, you know what? The floor sucked because it wasn't properly ventilated and didn't allow pressure to equalize quickly when the crappy door blew out. Even before the Turkey Airways disaster there had been an incident when the floor collapsed due to the cargo door blowing out, fortunately the airplane bar sealed the hole after only a couple of people got sucked out. That stupid Turkey Airways should have known that moving some seats around made the floor even more prone to collapse.
The outward opening door of the DC-10 was identified as a problem early on. In order for the door to be secured properly, the person closing the door had to turn the lock for an unspecified amount of time or else it would not be properly sealed. If the door was not properly sealed a little panel would not seal. In the case of pressure loss thus revealing the problem when the airplane was pressurized. Unfortunately if somone forced the door closed the panel would seal despite the fact that the door was not properly sealed. Thus McDonnell Douglas was relying on ground crew to make a critical operation that if failed could bring down the plane. This was compounded due to the fact that the floor between the cabin and baggage compartment was not properly ventilated. In the case of pressure loss in the cargo compartment, the cabin would need to depressurize quickly or else the pressure differential would cause the floor to collapse. Mcdonell Douglas knew that the door had problems since it had actually blown out during an early pressure test. They also knew that there were issues with the floor ventilation since a European aviation agency (I forget which country) had expressed concerns over it.
Lo and behold the door blows and the floor partially collapses. Fortunately only a couple of people get sucked out of the plane before the airplane bar lodged in the hole. You might think that they would fix the problem after this first incident but nope, Turkish Air 981 loses its door and the floor catastrophically collapses severing the control cables within it and the plane crashes killing everyone on board.
As to the design of the hydraulic lines, well Lockheed got it right in the L-1011, they put locks on the lines so that in the case of loss of pressure the lines were sealed so control could still be maintained. The reason they did this is because all of the hydraulic lines in the L-1011 like the DC-10 pass right next to the tail engine. Why did Lockheed know they needed this? Because they knew that ENGINES WILL INEVITABLY FAIL and tear apart and the loss of a single engine should NOT bring down a plane. So Hmm, sending all of the unprotected hydraulic lines right by an engine which will most certainly fail on some flight is stupid. The worst part isn't the flaws in the DC-10, the worst part is the criminal negligence of McDonnell douglas to not fix problems they knew were there and to not acknowledge their responsibility for the disasters.
But it doesn't take collusion to lower prices. All one company would have to do is drop their prices then everyone else would have to follow.
This is ridiculous, price fixing of DDR would have been good for Rambus with their overpriced memory.
I agree, fighting with friends is extremely satisfying. Anything that puts strain on my body and makes me feel pain makes me feel alive. Everybody who scoffs at the idea is missing out on feeling human. People forget that we've only been out of the trees for a few thousand years.
My favorite RPGs were fallout and fallout 2, very cool retro cold war/post apocalyptic sort of feel. Kind of old now but still incredible. Another game I like is an indie game called Bridge Construction Set. You're given the challenge of designing bridges to meet constraints like load, materials, and cost. Very addictive, though some of the harder ones will probably make you want to smash your laptop.
When dell gives those 750$ off coupons they boost the base price so it's not really as good as it seems. So, when buying a dell take a look at the prices when they are not offering any promotions to compare. The deals are still pretty good though, you can get a discount of 25% off or so.
The thing is, Apple's not really competing with Dell as Dell's laptop's are made inexpensiveley. Dell can't be beat on value but Apple's laptops are really nicely made with excellent keyboards and very solid cases. With IBM's laptop division gone to Lenovo, I think Apple laptops are poised to take the high end market, a great place for a company looking for large profit margins.
My roommate's theory is that the family was upset because Google was trying to use Miro's birthday as an excuse to celebrate 420 with some stoner imagery. The google logo change seems to be always for major events or people and Joan Miro is not an artist known to most people.
How many games actually support these resolutions: 1920x480, 2400x600, and 3072x768?
There's plenty of games that don't even support widescreen resolutions.
Fantastic, I love how cell phone makers create these fantastic fast cell phone data networks but instead of offering cheap wireless broadband they push proprietary expensive and stupid downloads that nobody wants.
I've had only a single class where powerpoint slides were used effectively. My teacher put up the slide, THEN repeated all the work that was on the slide on the blackboard.
Personally, when learning engineering stuff at least, I absolutely need to see the derivations be made real-time and not just presented on a slide. A bunch of slides with a bunch of math is incredibly incredibly boring. There's something about watching concepts get worked out on the blackboard that just clicks with my brain. If there's any teachers who teach math or engineering THROW AWAY THE POWERPOINT!
King of the hill is a good show! It's the Simpsons FOX needs to put out of its misery.
The most blatently metaphorical dream I ever had was the night before a final exam that I was really unprepared for.
I'm sitting there in front of a piano in a concert hall staring at the sheet music when it slowly dawns on me what's happening and I realize that I HAVE NO IDEA HOW TO PLAY THE PIANO!!!
I ended up with a C in the class though, so I guess I banged out a decent tune in reality.
It's a fine idea, but the keys feel sorta mushy and the general construction of these things seems kind of cheap.
My dad has a 60" HDTV and HD content looks INCREDIBLE. I was watching the DVD of Lost last night on the tv and although it did look pretty good, it noticeably lacked the crispness and detail of the full resolution HD broadcast. With the DVD alot of the fine detail of the plants and trees especially was gone. I personally feel that a threshold is passed between standard DVD and HD where it starts to really feel like you are looking through a window. Unfortunately I don't have 3 grand to drop on a TV set so I can only get my HD fix when I go back to my parents' house.
I really hope that format wars and DRM encumbrence, don't ruin HD for everyone.
It seems like most people look on genetic engineering to produce superior babies as a bad thing. The fact is that we as a species have pretty much stopped evolving. Who knows what the human race will have to face in the future and whether we'll be able to survive it. Why should we limit the potential of the human race?
"unsupported" games may work but to try you have to make your own "application profile" if Nvidia has not released one. Basically all this involves is specifying which mode to use for specific programs.
http://www.hardocp.com/article.html?art=NzExLDM=
I'm sure its pretty annoying for the average gamer though, to edit some obscure file every time they want to play a new unprofiled game. But then again Nvidia fanboys who are crazy enough to spend 1200$ on a pair of video cards will doubtless have no problem with this.
This calls for a:
My eyes! The goggles! They do nothing!
Well considering that the website refers to an article in Russia's Pravda, which has stories called "Boriska-boy from Mars" , "Humans Learn to Fly" , "Soviet Army Fought UFOs" etc. I wouldn't lend too much credence to this.
Or who knows maybe years of exposure to radiation from atomic bomb testing has given Russians superpowers.
Hmm interesting, thanks for your response. What is a spherical halo exactly?
I've never taken any astronomy, or astrophysics courses so I really don't know what I'm talking about, but it always seemed to me like the whole dark matter thing was a big fudge to make our observations fit with current theory. So I have a few questions:
1. Is the "error" in galaxy mass consistent among different galaxies, big ones small ones, distant and close ones?
2. How do they even estimate the mass of a galaxy in the first place?
3. Are there any other observations that don't fit with current theory that would be explained by the existence by dark matter other than the unexpected rotational velocities of galaxies?
3. Shouldn't outer rim stars in a galaxy orbit slower than inner rim stars? Or do they and is that why they form spirals? (this is sort of an unrelated question but I'm pondering about galaxies right now)
This is CHINA we're talking about. ALL software in China is pirated! Do you think a news story coming from a Chinese newspaper which is run by the government is going to give the real reasons why this software is banned, particularly games related to Vietnam and games that show Taiwan as a separate country? Read between the lines! If you think this is only about piracy then you've know nothing about China.
Check out the student section. Obviously these kids know what a pain in the ass college is. Layers of disgusting crud building up on your unbagged trash cans? Just get the "Re-Bag" can which bags itself! Toilet clogged up with vomit and fecal matter? Just assemble your "UnBathroom" cardboard toilet and get back in business.