Actually, there is. If you have complete combustion, then you would not be able to smell the exhaust, you would only be left with CO2 and H2O. If your exhaust smells like the source fuel, then you are putting unburned hydrocarbons into the atmosphere. snip Does it come anywhere near the clean combustion of a good gas engine with a catalytic converter? No. There are some new exhaust systems that bring diesel up to the cleanliness of gasoline, but only if you are using low sulphur diesel, and they add about $3000 to the cost of the car, and are not required yet.
Most new diesels come with a catalytic converter.
Biodiesel is *VERY* low sulfer (lower than gasoline).
And... gas engines have less complete combusiton than diesels, especially modern diesels.
The pour point of the oils used in donut frying is much higher, and makes it far less suitlble for biodiesel, unless you live somewhere that winter temps are in the 80s-90s...
London, along with Paris, are now the crime capitals of the Western world.
I will believe that when you post a link with the numbers.
I have friends from europe, they have never ever heard of a drive by. I knew someone who was killed in one; dropping off his date, from the wrong part of town, at the wrong time...
We gave Hussein many many chances to comply with the weapons inspectors and he kicked them out, do you remember this?
Hussein never kicked any inspectors out, they were withdrawn by the UN.
War was and is the last resort (we don't want to kill people)
Hussein tried to surrender on the eve of war, but bush didn't want to listen to him. How does that fit in with war being the last resort?
The troops in Iraq are there because they want to be (we don't draft people)
I am sorry but that is the biggest pile of shit I have ever heard. The people in our military signed up to defend THIS country (USA). If our recruiting posters had told of how they would be sent to foriegn lands where the locals don't want them there, to be shot at so the president can distract us from his failings in the war on terror (Iraq and Bin Laden are 2 completely separate issues), how many do you think would have signed up? I thought about enlisting myself after 9/11, but I realized this would happen, and thought better of it.
the people in Iraq want us there (despite what the liberal media shows you)
Where are you getting these facts? Last I heard, a survey of Iraqis showed that most are glad that Hussein is gone, but want us to get the hell out, and the portion who are saying that the invasion was not worth it, and would rather have Hussein back is growing rapidly.
They don't show you the good things that our troops are doing to rebuild that country.
NPR (that is liberal media, right?) has done several stories on that very thing.
These insurgents *hate* Americans and everything we stand for, and have declared war on US
No, that is Al Qaida, the insurents were not filled with hatred for us, until we showed up in their yards.
All commercial speech is advertisment. Whether it is a spot on TV, or a statment about the working conditions in a corporation's factory. It is all about the speaking entities commercial interest.
The public has a vested interest in these statments being accurate (or at least not being lies), hense truth in advertising laws. Given the fact that all commercial speech is advertisment, I believe that truth in advertising laws should apply to all commercial speech.
That guy took the words right out of my mouth. There is a cost of reducing crime, and it is not worth my freedom.
That said... I have been robbed, my wallet was taken from a locker at a gym (yes it was locked, no I never figured out how they got in...) I found my wallet, devoid of all cash, in a nearby trash can. I was also assaulted about 10 years ago, fortunatly no harm came to me, he took one swing at me, missed, and I ran... A lot faster than he could...
I think crime is pretty low right now. Of corse I wouldn't complain if the crime rate was lowered, but if big brother is needed to lower crime, I will take my chances, thank you very much...
About 4 years ago, when I was doing an internship in CT I was stuck on dial up. I was having problems using my connection once establishing it (I had never used the modem in that computer before, having been on campus and all) I finally gave up tinkering on my own and called tech support at my ISP
Me: I can't seem to get anything that uses TCP/IP to work. Them: delete your cookies.
Me: (I can be a stubborn ass) This isn't a problem with my browser, I can't use telnet, I can't use ftp... Them: delete your cookies.
Me: Why? Them: What do you mean why, you need to delete your cookies so we can see if one of them is causing a problem.
Me: Do you understand that I can not use ftp? I don't use the ftp client built into netscape... Them: Oh, you use netscape... here is how you delete your cookies.
Me: I am not deleting my cookies, this is NOT a browser problem. Them: then I can't help you.
Me: Can I speek to someone higher up? Them: just a moment...
Manager: What is your problem? Me: TCP/IP isn't working.
Manager: Delete your cookies Me: It's not a browser problem, I can't use ftp or telnet either...
Manager: telnet? Me: It lets you remote control a UNIX computer else where, and it runs over TCP/IP.
Manager: Your cookies are skrewing up TCPIP. Me: They can't do that.
Manager: Don't tell me about this stuff, I have been doing computer support for 2.5 years. Me: I have been doing it every summer for the last 4 years.
Manager: If you don't delete your cookies. We can't help you. Me: Can I speek to someone higher up the ladder?
Manager: No. Me: (hang up)
Me (calling back later, after trying on my own some more): TCP/IP isn't working, I can't ftp, can't telnet, can't do anything... I called earlier, I don't want to delete my cookies, becasue it isn't a browser problem. tier1: Are you the guy that was talking to my boss earlier?
Me: yes tier1: he is such an idiot, here try this (I don't remember what the solution was)
Me: thanks, can I have your name so I can request you if I need someone who doesn't have hsi head up his ass? tier1: yes... (name) (I don't remember anymore, had it on a post it for a while, but then I moved and changed ISPs).
If you are out there dude, thanks again...
clean/safe public transit
on
Out of Gas
·
· Score: 2, Insightful
In places where public transit is good more "normal" people use it.
I have lived in two different college towns where the buses were used mostly by faculty and staff of the university. I use it myself when the weather sucks, stops one block from my apartment very 15 minutes during commute time...
Oil refining doesn't only produce gasoline and diesel, there is a lot of other stuff that comes out of that oil which could not necissarily be used to run a vehicle, it is this crap that is left over that most plastics are made from. So it is not that much of a problem...
You should never ride very far without carrying a spare tube and/or patch kit!
Just 2 weeks ago I was on a 40 mile out and back ride, and at about 16 miles out, I flatted... That was the second time I had gotten a flat, took me a few minutes to swap the tube out, the small pump I keep strapped to my bike was a little slow in filling my tire up, but I was on the road again in under a half hour.
It is also a good idea to carry an extra energy bar on long rides incase you get a flat...
The article talks about using a covered lagoon full of shit to collect the methane as the shit breaks down. The article said a well fed cow craps ~120 lbs/day.
How does the shit get to the lagoon?
At 120lbs/day/cow, moving that shit around could require a lot of energy. Are they only using the shit from the barn? Is there someone riding the range looking for shit? Are the cows wearing shit bags like horses in the city do? Are they doing anything to catch the cow farts (100-200 liters/day/cow according to the article)?
22 to 1 is a common compression ratio, my olds had 21 to 1, I think...
The compression makes it harder to start the engine, but this is regardless of temperature...
I am a mechanical engineering renasance man, I have worked on aero/thermomechanical systems in jet engines, fracture mechaninics in rockets, heat exchangers...
I don't do much design, I am mostly an analyst, but I know what you mean about the horible maintnance situations...
NPR definatly leans left, but they always broadcast corrections if they have gotten any facts wrong. I listen to NPR, but I also watch Fox News, and listen to the BBC. The only way to get close to unbiased news is to get it from many different places...
I love it, he says to stop listening to NPR if you want accuracy and then gives an inaccurate description of diesel engines...:)
Diesels run at much higher compression ignition and burn a much higher fraction of the fuel. Why do you think that using compression would burn less of the fuel? When using a spark you have to initiate a flame (at the spark) and then the flame front has to traverse the whole cylinder. When using a compression ignition system (diesel) the fuel everywhere in the cylinder will combust on it's own without having to wait for a propagating flame.
Also diesels use a much lower fuel/air ratio than gas engines. Stoichiometrically a gas engine doesn't have enough air for complete combustion of all of it's fuel in most situations, diesels do.
The diesel engine burns it's fuel at a much higher temperature, this is the cause for some of the emision problems (nitrous oxides) (also of the incresed efficiency). Other emisions issues are due to the fuel itself (for the most part), a lot of diesel fuel emisions could be eliminated by further processing of diesel fuel (sulfur oxides, and particulates).
The high compression has nothing to do with winter start problems. They put enourmous starter motors on those things, and many of them hae 2 batteries and run the starting system at 24V instead of 12V. The problem with winter starts is that the fuel increases in viscosity and even starts to form a gel with wax crystals in it at cold temperatures.
I am an engineer and former owner of a craptastic 1981 Oldsmobile Delta 88 diesel. I lived in Illinois at the time I had the car. I couldn't start it twice in the whole winter of the year I owned it (frequently below 0F). I had limited trouble finding fuel as well, just like I notice cheap gas now, I noticed diesel fuel then...
I would love to own another diesel, but I want something between behemoth SUV and econobox...
Did these contractors have assault rifles with them?
yes.
Were they invited guests of the population of Falujah?
No.
Care to tell me which facts I got wrong?
As a patriot I will proudly say that in their situation I would have done the exact same thing. If there were Iraqis walking the streets of Anytown, USA exersicing rights not afforded to myself and other citizens of my country, I would subvert them in anyway I could. That would include welcoming the help of canadians, and anyone else sympathetic to my cause.
For the record, I opposed going in to Iraq vigorously, and I have not said that pulling out is that answer. But going in and cracking skulls only strenghtens their cause.
And that blood, it is already on the hands of every american of voting age, myself included (you too, I assume).
It is not entirely the ubiquity of windows that causes it problems, but it helps...
Any suficiently large amount of code will contain bugs, the OSS model makes them less prevalent, but they are still there. Of these bugs some will allow remote exploit. Haven't there been 2 remote root exploits in FreeBSD? Isn't FreeBSD supposed to be the pinical of security? If FreeBSD was as popular as windows it would be feasable to have a compramised machine look for other compramised machines, but with FreeBSD systems being relativly rare, the odds of an infected machine finding another one to infect go down very quickly.
If I may use a real infection analogy: An epidemic will spread through a city of healthy people faster than it will spread through sparsly populated planes inhabited by those with weakened immune sytems...
It causes all of the tendons and joints which are loaded repeatedly every time you run to be loaded in a slightly different fasion, this reduces the probability of repetative stress injuries (most running injuries).
The care instructions I have read on every pair of running shoes I have ever owned has said quite clearly not to wash them (anymore than an wipe down).
Your post made me think about the 100 hour batery life thing... the life expectancy for most running shoes is about 300-500 miles depending on the shoe and the person in it... To get 100 hours out of your shoe, you would have to be going really slow to need to change the batteries before changing your shoe. 12 minute miles, 15 is walking briskly!
Incidently I get about 6 months per 2 pair of running shoes (I wear a different pair every other day Mizuno Wave Renegades, or Nike Air Durhams, it's a good thing to do if you get cronic injuries). I am really hard on shoes... I am 205 lbs and I run 30-45 miles/week, depending on whether or not I am getting ready for a marathon (done 2 so far).
Slashdot Mirror
Actually, there is. If you have complete combustion, then you would not be able to smell the exhaust, you would only be left with CO2 and H2O. If your exhaust smells like the source fuel, then you are putting unburned hydrocarbons into the atmosphere.
snip
Does it come anywhere near the clean combustion of a good gas engine with a catalytic converter? No. There are some new exhaust systems that bring diesel up to the cleanliness of gasoline, but only if you are using low sulphur diesel, and they add about $3000 to the cost of the car, and are not required yet.
Most new diesels come with a catalytic converter.
Biodiesel is *VERY* low sulfer (lower than gasoline).
And... gas engines have less complete combusiton than diesels, especially modern diesels.
The pour point of the oils used in donut frying is much higher, and makes it far less suitlble for biodiesel, unless you live somewhere that winter temps are in the 80s-90s...
London, along with Paris, are now the crime capitals of the Western world.
I will believe that when you post a link with the numbers.
I have friends from europe, they have never ever heard of a drive by. I knew someone who was killed in one; dropping off his date, from the wrong part of town, at the wrong time...
On the first point you are absolutly correct.
However...
On the second, bush wanted the war, and was willing to ignore his own promises to get it. read here
And on the third point, I was refuting the statment that the Iraqi people want our troops in Iraq; they don't...
We gave Hussein many many chances to comply with the weapons inspectors and he kicked them out, do you remember this?
Hussein never kicked any inspectors out, they were withdrawn by the UN.
War was and is the last resort (we don't want to kill people)
Hussein tried to surrender on the eve of war, but bush didn't want to listen to him. How does that fit in with war being the last resort?
The troops in Iraq are there because they want to be (we don't draft people)
I am sorry but that is the biggest pile of shit I have ever heard. The people in our military signed up to defend THIS country (USA). If our recruiting posters had told of how they would be sent to foriegn lands where the locals don't want them there, to be shot at so the president can distract us from his failings in the war on terror (Iraq and Bin Laden are 2 completely separate issues), how many do you think would have signed up? I thought about enlisting myself after 9/11, but I realized this would happen, and thought better of it.
the people in Iraq want us there (despite what the liberal media shows you)
Where are you getting these facts? Last I heard, a survey of Iraqis showed that most are glad that Hussein is gone, but want us to get the hell out, and the portion who are saying that the invasion was not worth it, and would rather have Hussein back is growing rapidly.
They don't show you the good things that our troops are doing to rebuild that country.
NPR (that is liberal media, right?) has done several stories on that very thing.
These insurgents *hate* Americans and everything we stand for, and have declared war on US
No, that is Al Qaida, the insurents were not filled with hatred for us, until we showed up in their yards.
All commercial speech is advertisment. Whether it is a spot on TV, or a statment about the working conditions in a corporation's factory. It is all about the speaking entities commercial interest.
The public has a vested interest in these statments being accurate (or at least not being lies), hense truth in advertising laws. Given the fact that all commercial speech is advertisment, I believe that truth in advertising laws should apply to all commercial speech.
That guy took the words right out of my mouth. There is a cost of reducing crime, and it is not worth my freedom.
That said... I have been robbed, my wallet was taken from a locker at a gym (yes it was locked, no I never figured out how they got in...) I found my wallet, devoid of all cash, in a nearby trash can. I was also assaulted about 10 years ago, fortunatly no harm came to me, he took one swing at me, missed, and I ran... A lot faster than he could...
I think crime is pretty low right now. Of corse I wouldn't complain if the crime rate was lowered, but if big brother is needed to lower crime, I will take my chances, thank you very much...
About 4 years ago, when I was doing an internship in CT I was stuck on dial up. I was having problems using my connection once establishing it (I had never used the modem in that computer before, having been on campus and all) I finally gave up tinkering on my own and called tech support at my ISP
Me: I can't seem to get anything that uses TCP/IP to work.
Them: delete your cookies.
Me: (I can be a stubborn ass) This isn't a problem with my browser, I can't use telnet, I can't use ftp...
Them: delete your cookies.
Me: Why?
Them: What do you mean why, you need to delete your cookies so we can see if one of them is causing a problem.
Me: Do you understand that I can not use ftp? I don't use the ftp client built into netscape...
Them: Oh, you use netscape... here is how you delete your cookies.
Me: I am not deleting my cookies, this is NOT a browser problem.
Them: then I can't help you.
Me: Can I speek to someone higher up?
Them: just a moment...
Manager: What is your problem?
Me: TCP/IP isn't working.
Manager: Delete your cookies
Me: It's not a browser problem, I can't use ftp or telnet either...
Manager: telnet?
Me: It lets you remote control a UNIX computer else where, and it runs over TCP/IP.
Manager: Your cookies are skrewing up TCPIP.
Me: They can't do that.
Manager: Don't tell me about this stuff, I have been doing computer support for 2.5 years.
Me: I have been doing it every summer for the last 4 years.
Manager: If you don't delete your cookies. We can't help you.
Me: Can I speek to someone higher up the ladder?
Manager: No.
Me: (hang up)
Me (calling back later, after trying on my own some more): TCP/IP isn't working, I can't ftp, can't telnet, can't do anything... I called earlier, I don't want to delete my cookies, becasue it isn't a browser problem.
tier1: Are you the guy that was talking to my boss earlier?
Me: yes
tier1: he is such an idiot, here try this (I don't remember what the solution was)
Me: thanks, can I have your name so I can request you if I need someone who doesn't have hsi head up his ass?
tier1: yes... (name) (I don't remember anymore, had it on a post it for a while, but then I moved and changed ISPs).
If you are out there dude, thanks again...
In places where public transit is good more "normal" people use it.
I have lived in two different college towns where the buses were used mostly by faculty and staff of the university. I use it myself when the weather sucks, stops one block from my apartment very 15 minutes during commute time...
Correct me if I screw up the explanation...
Oil refining doesn't only produce gasoline and diesel, there is a lot of other stuff that comes out of that oil which could not necissarily be used to run a vehicle, it is this crap that is left over that most plastics are made from. So it is not that much of a problem...
I have one of those, it is great, but I don't think I spent that much on it...
It has a short stroke, but since you can use your weight very effectivly, it isn't hard to get a lot of pressure.
You should never ride very far without carrying a spare tube and/or patch kit!
Just 2 weeks ago I was on a 40 mile out and back ride, and at about 16 miles out, I flatted... That was the second time I had gotten a flat, took me a few minutes to swap the tube out, the small pump I keep strapped to my bike was a little slow in filling my tire up, but I was on the road again in under a half hour.
It is also a good idea to carry an extra energy bar on long rides incase you get a flat...
The article talks about using a covered lagoon full of shit to collect the methane as the shit breaks down. The article said a well fed cow craps ~120 lbs/day.
How does the shit get to the lagoon?
At 120lbs/day/cow, moving that shit around could require a lot of energy. Are they only using the shit from the barn? Is there someone riding the range looking for shit? Are the cows wearing shit bags like horses in the city do? Are they doing anything to catch the cow farts (100-200 liters/day/cow according to the article)?
Well, I guess it was more than one question...
... is that the facility hosting the conferance had computers and projectors in all of the conference rooms already...
22 to 1 is a common compression ratio, my olds had 21 to 1, I think...
The compression makes it harder to start the engine, but this is regardless of temperature...
I am a mechanical engineering renasance man, I have worked on aero/thermomechanical systems in jet engines, fracture mechaninics in rockets, heat exchangers...
I don't do much design, I am mostly an analyst, but I know what you mean about the horible maintnance situations...
NPR definatly leans left, but they always broadcast corrections if they have gotten any facts wrong. I listen to NPR, but I also watch Fox News, and listen to the BBC. The only way to get close to unbiased news is to get it from many different places...
I posted this above so not all of the contained info is relavent...
Also the difference in compression ratios is only about 100-200%
I love it, he says to stop listening to NPR if you want accuracy and then gives an inaccurate description of diesel engines... :)
Diesels run at much higher compression ignition and burn a much higher fraction of the fuel. Why do you think that using compression would burn less of the fuel? When using a spark you have to initiate a flame (at the spark) and then the flame front has to traverse the whole cylinder. When using a compression ignition system (diesel) the fuel everywhere in the cylinder will combust on it's own without having to wait for a propagating flame.
Also diesels use a much lower fuel/air ratio than gas engines. Stoichiometrically a gas engine doesn't have enough air for complete combustion of all of it's fuel in most situations, diesels do.
The diesel engine burns it's fuel at a much higher temperature, this is the cause for some of the emision problems (nitrous oxides) (also of the incresed efficiency). Other emisions issues are due to the fuel itself (for the most part), a lot of diesel fuel emisions could be eliminated by further processing of diesel fuel (sulfur oxides, and particulates).
The high compression has nothing to do with winter start problems. They put enourmous starter motors on those things, and many of them hae 2 batteries and run the starting system at 24V instead of 12V. The problem with winter starts is that the fuel increases in viscosity and even starts to form a gel with wax crystals in it at cold temperatures.
I am an engineer and former owner of a craptastic 1981 Oldsmobile Delta 88 diesel. I lived in Illinois at the time I had the car. I couldn't start it twice in the whole winter of the year I owned it (frequently below 0F). I had limited trouble finding fuel as well, just like I notice cheap gas now, I noticed diesel fuel then...
I would love to own another diesel, but I want something between behemoth SUV and econobox...
Did these contractors have assault rifles with them?
yes.
Were they invited guests of the population of Falujah?
No.
Care to tell me which facts I got wrong?
As a patriot I will proudly say that in their situation I would have done the exact same thing. If there were Iraqis walking the streets of Anytown, USA exersicing rights not afforded to myself and other citizens of my country, I would subvert them in anyway I could. That would include welcoming the help of canadians, and anyone else sympathetic to my cause.
For the record, I opposed going in to Iraq vigorously, and I have not said that pulling out is that answer. But going in and cracking skulls only strenghtens their cause.
And that blood, it is already on the hands of every american of voting age, myself included (you too, I assume).
If you are going to flame, get it right...
They we in Faluja, not Bagdad. And the people of Faluja never asked to have foreniers with assault rifles in their city.
Has the world completely given up on checking signitures?
Somebody created an account named "ohsnap" just to say that, that is pretty funny...
It is not entirely the ubiquity of windows that causes it problems, but it helps...
Any suficiently large amount of code will contain bugs, the OSS model makes them less prevalent, but they are still there. Of these bugs some will allow remote exploit. Haven't there been 2 remote root exploits in FreeBSD? Isn't FreeBSD supposed to be the pinical of security? If FreeBSD was as popular as windows it would be feasable to have a compramised machine look for other compramised machines, but with FreeBSD systems being relativly rare, the odds of an infected machine finding another one to infect go down very quickly.
If I may use a real infection analogy: An epidemic will spread through a city of healthy people faster than it will spread through sparsly populated planes inhabited by those with weakened immune sytems...
It causes all of the tendons and joints which are loaded repeatedly every time you run to be loaded in a slightly different fasion, this reduces the probability of repetative stress injuries (most running injuries).
The care instructions I have read on every pair of running shoes I have ever owned has said quite clearly not to wash them (anymore than an wipe down).
Your post made me think about the 100 hour batery life thing... the life expectancy for most running shoes is about 300-500 miles depending on the shoe and the person in it... To get 100 hours out of your shoe, you would have to be going really slow to need to change the batteries before changing your shoe. 12 minute miles, 15 is walking briskly!
Incidently I get about 6 months per 2 pair of running shoes (I wear a different pair every other day Mizuno Wave Renegades, or Nike Air Durhams, it's a good thing to do if you get cronic injuries). I am really hard on shoes... I am 205 lbs and I run 30-45 miles/week, depending on whether or not I am getting ready for a marathon (done 2 so far).
Keep running!
TamMan2000
It is just a name for their custom Linux From Scratch compile.
That isn't what the article says...
Lumix is open source, and if you're interested in getting a CD containing Lumix, just send them a request for it by e-mail.
You can also visit their website. (pretty slow right now...)