...the risk to your health due to heating your head via microwaves from a phone is much smaller...
I didn't talk about really heating the head. It's more about local effects of energy concentrated in one specific band... One of the things they think could cause cancer is the fact that microwaves kill some cells from the immune system, allowing tumors to form.
If you consider a one Watt phone (it's probably a bit below that on more recent phones, but it's still reasonable), your head receives about 1/2 Watt of energy. This energy probably affects at most a 100 cm^2 area of your head.
Now, what if you stand at 1 meter from a microwave oven working with the door removed. The proportion of radiation you'll get is 0,01m^2/(4*pi*1m^2) = 0,0008. So if you stand in front of this microwave oven at 1 meter, you get 700W*0,0008 = 0,5 Watts.
So when you talk with a cellphone, your head receives the same amount of microwaves you would get standing a 1 meter from an open microwave oven.
Man this makes it sound like cellphone is the most important invention of the century... How many people get injured in car accidents because of a cellphone (plus how many get beaten after their phone rings in a movie theater!), compared to the 3-4 spectacular rescues they show you on TV?
Besides, if those spectacular rescues were so common, they wouldn't show them on TV!
Supported or not (remember how much time it took before we knew that tobaco caused cancer - some still don't believe that), I don't understand how you can feel safe having a tiny microwave oven near your head (knowing the radiation energy goes in 1/r^2) for several hours a day.
It may not cause cancer, but who knows the long-term effects...
Bombs are less deadly that nuclear weapons, so let's distribute bombs to everyone!
Guns are merely a tool.
It is true. Better education would reduce crime. However, if people can't (or can with a lot more trouble) get a gun, they can't shoot at anyone. On the other if everybody carries a gun, all it takes is for someone to go nut for 10 seconds and you have a couple bodies.
There's a vicious circle about guns:
Q: Why do you carry a gun?
A: To protect from people with guns.
It's funny how things are different from one place to another. I I had posted this same comment on a canadian forum, I would probably have been modarated down for "stating the obvious". Now, posting this on an anerican forus (which is what Slashdot mostly is), it's a flamebait...
These are all quite useful (to me!) KDE apps. Otherwise, I like the look of gnome better so that's what I use (that is, the gnome panel and sawfish). I know many people who like the KDE panel/wm better and that's fine. I'm not the first one to say that, but you don't have to choose between gnome and KDE and I don't understand why so many people want to make it look that way. Just use whatever you like from both and everyone will be happy, and there will be no war in the world and humanity will be happy, and..... OK, I'll stop!
Just a detail here: as far as I understood this, the refraction index is not negative, it is smaller than 1 (0n1), so it has the opposite refraction effect as most materials.
Using code from other Linux distributions
on
Ask Robert Young
·
· Score: 4
Lots of Linux distributions (Mandrake-Linux is an example) have started from a version of RedHat and then added their own features and applications. This is, of course, the benefit of open source software. I'd like do know whether RedHat too has benefited from that by putting some of these enhencements back into RedHat distributions. If so, can you give the most important examples?
The first person to mention Quake loses a testicle
Actually, I wouldn't be too suprised if an Athlon or PIII could beat this machine at Quake frame rate (that is, if you could install a videocard on it...). This kind of computer is very, very fast at vector computations, but very slow for scalar... plus the fact a HUGE memory bandwidth, the latency is relativly poor.
Sometimes people with slow modems don't mind waiting
...and the other way 'round. I have DSL, but I still hate those big pages with all the text dislayed as gif, and which I can't read, since my monitor is 120 dpi and it's written with 75 dpi...
I always choose "slow connection" for sites, when I have the choice
Will RMS be fined 1$ every time any of the GNU utilities crash, or Linus everytime Linux crashes? Sure it doesn't happen ofter, but with the number of people using it...
I'll stop writing free software the day a law like that passes...
Are you forgetting about conservation of energy? If you want enough hydrogen to produce 1 J, you'll need to put (1 J + losses) of energy into the electrolysis. So if your bike exercise produces enough hydrogen to power you car, you should consider just replacing your car engine by pedals...
The smallest gziped binary (Linux ELF, i686) of dcss I was able to build is 1787 bytes long (the original was 3608). I used the 7-line C source that was posted a couple days ago (compiled with -s -O3 -mpentiumpro). I'm sure it's possible to do better... anybody tried?
Well, since I started working for a speech recognition company (Locus Dialog), I cannot (I'd be in a wierd position) work on a free speech recognition engine anymore. There are already (at least) two free speech recognition engines anyway (sphinx and isip).
However, I'm still activly contributing to the Overflow project (a visual development environment), which started from the Open Mind Speech. (link in my new sig!)
If you read carfully my comment, I totally agree that power plants are more efficient than most (all) car engines. However, AFAIK, producing hydrogen using electrolysis is not that efficient, so the total loss may not be far from that of normal cars. Count the trouble of carrying hydrogen and I don't think the hydrogen solution is much better than the current gas-electric cars like the Honda Insight.
OK, hydrogen is supposed to be clean. However two things need to be taken into account:
1) Normal cars produce three (at least) kinds of pollutions: carbon monoxide/dioxide, nitrogen oxides (NOx) and ozone (O3). Of course, hydrogen will not produce carbon oxides, but it will likely still produce nitrogen oxides and ozone. These are not created by the fuel burning, but by the effect of heat on the air (ie. the nitrogen in the NOx come from the air).
2) How do you produce hydrogen? If you use electrolysis, then you need to get the energy from some place. If you burn fuel to get that energy, you're just moving the pollution. Note: while power plants are more efficient than a normal gas engine, the gain you have will likely be lost in the electrolysis.
I'm sorry, but you have always been liable for what you say, long before the DMCA, and that's not a bad thing in itself.
Slashdot is liable for everything written on Slashdot.
In this case, Slashdot was not liable for the content. In this case, a copyright infringement was found in a comment and Slashdot was asked to "help" repair de "damage" by removing the comment. That's all.
I still don't agree with copyrights on a this kind of stuff, but that's another matter.
I never said it created mercury! I said that it caused mercury pollution...
Costs: $25K for 10kW of electricity
Cool, scaling that you get more than a billion for 500 MW of electricity, which is just a normal nuclear plant. (BTW, I'm not saying nuclear power is better). Sure is you can use some heat from the sum to help heat you house, it's always good, but if you want something efficient, you totally change the kind of cells you need...
For example satellite solar cells use semi-conductors like GaAs (Gallium Arsenide), this isn't what I call non-toxic! Except for Silicon (which I don't think is ideal for solar cells), most semiconductors are toxic. Things like GaAs, InGaAs, InP, Se...
There already is mercury, but it's in some non-toxic compound (in the trees, I think). Because forests are flooded, it goes in the water and reacts with something... The fish in the water need hydro-electric plants are full or mercury.
Slashdot Mirror
Isn't this just forcing people to use a particular kind of software? Like Microsoft did (only with "free software" replacing the word "Windows")?
They're not saying they don't want Windows. If MS opens the source to windows, there's no problem anymore...
...the risk to your health due to heating your head via microwaves from a phone is much smaller...
I didn't talk about really heating the head. It's more about local effects of energy concentrated in one specific band... One of the things they think could cause cancer is the fact that microwaves kill some cells from the immune system, allowing tumors to form.
If you consider a one Watt phone (it's probably a bit below that on more recent phones, but it's still reasonable), your head receives about 1/2 Watt of energy. This energy probably affects at most a 100 cm^2 area of your head.
Now, what if you stand at 1 meter from a microwave oven working with the door removed. The proportion of radiation you'll get is 0,01m^2/(4*pi*1m^2) = 0,0008. So if you stand in front of this microwave oven at 1 meter, you get 700W*0,0008 = 0,5 Watts.
So when you talk with a cellphone, your head receives the same amount of microwaves you would get standing a 1 meter from an open microwave oven.
Man this makes it sound like cellphone is the most important invention of the century... How many people get injured in car accidents because of a cellphone (plus how many get beaten after their phone rings in a movie theater!), compared to the 3-4 spectacular rescues they show you on TV?
Besides, if those spectacular rescues were so common, they wouldn't show them on TV!
Supported or not (remember how much time it took before we knew that tobaco caused cancer - some still don't believe that), I don't understand how you can feel safe having a tiny microwave oven near your head (knowing the radiation energy goes in 1/r^2) for several hours a day.
It may not cause cancer, but who knows the long-term effects...
Besides, guns are probably less deadly than bombs
Bombs are less deadly that nuclear weapons, so let's distribute bombs to everyone!
Guns are merely a tool.
It is true. Better education would reduce crime. However, if people can't (or can with a lot more trouble) get a gun, they can't shoot at anyone. On the other if everybody carries a gun, all it takes is for someone to go nut for 10 seconds and you have a couple bodies.
There's a vicious circle about guns:
Q: Why do you carry a gun?
A: To protect from people with guns.
Yeah, surely guns are useful!
It's funny how things are different from one place to another. I I had posted this same comment on a canadian forum, I would probably have been modarated down for "stating the obvious". Now, posting this on an anerican forus (which is what Slashdot mostly is), it's a flamebait...
If you consistently expose people to sex and violence they grow to accept it.
Violence is bad. Please, can you explain to me how sex is bad?
(BTW, I do agree that there's too much "useless" violence on TV, but before restricting that, I'd start by restricting guns, which do far more damage)
Of course, gun companies didn't have anything to do with that.
Why the heck should I choose KDE
...
KWord, KLyx, KDevelop,
These are all quite useful (to me!) KDE apps. Otherwise, I like the look of gnome better so that's what I use (that is, the gnome panel and sawfish). I know many people who like the KDE panel/wm better and that's fine. I'm not the first one to say that, but you don't have to choose between gnome and KDE and I don't understand why so many people want to make it look that way. Just use whatever you like from both and everyone will be happy, and there will be no war in the world and humanity will be happy, and..... OK, I'll stop!
Just a detail here: as far as I understood this, the refraction index is not negative, it is smaller than 1 (0n1), so it has the opposite refraction effect as most materials.
Lots of Linux distributions (Mandrake-Linux is an example) have started from a version of RedHat and then added their own features and applications. This is, of course, the benefit of open source software. I'd like do know whether RedHat too has benefited from that by putting some of these enhencements back into RedHat distributions. If so, can you give the most important examples?
The first person to mention Quake loses a testicle
Actually, I wouldn't be too suprised if an Athlon or PIII could beat this machine at Quake frame rate (that is, if you could install a videocard on it...). This kind of computer is very, very fast at vector computations, but very slow for scalar... plus the fact a HUGE memory bandwidth, the latency is relativly poor.
Sometimes people with slow modems don't mind waiting
...and the other way 'round. I have DSL, but I still hate those big pages with all the text dislayed as gif, and which I can't read, since my monitor is 120 dpi and it's written with 75 dpi...
I always choose "slow connection" for sites, when I have the choice
Will RMS be fined 1$ every time any of the GNU utilities crash, or Linus everytime Linux crashes? Sure it doesn't happen ofter, but with the number of people using it...
I'll stop writing free software the day a law like that passes...
Electrolysis doesn't take much energy
Are you forgetting about conservation of energy? If you want enough hydrogen to produce 1 J, you'll need to put (1 J + losses) of energy into the electrolysis. So if your bike exercise produces enough hydrogen to power you car, you should consider just replacing your car engine by pedals...
The smallest gziped binary (Linux ELF, i686) of dcss I was able to build is 1787 bytes long (the original was 3608). I used the 7-line C source that was posted a couple days ago (compiled with -s -O3 -mpentiumpro). I'm sure it's possible to do better... anybody tried?
Well, since I started working for a speech recognition company (Locus Dialog), I cannot (I'd be in a wierd position) work on a free speech recognition engine anymore. There are already (at least) two free speech recognition engines anyway (sphinx and isip).
However, I'm still activly contributing to the Overflow project (a visual development environment), which started from the Open Mind Speech. (link in my new sig!)
If you read carfully my comment, I totally agree that power plants are more efficient than most (all) car engines. However, AFAIK, producing hydrogen using electrolysis is not that efficient, so the total loss may not be far from that of normal cars. Count the trouble of carrying hydrogen and I don't think the hydrogen solution is much better than the current gas-electric cars like the Honda Insight.
OK, hydrogen is supposed to be clean. However two things need to be taken into account:
1) Normal cars produce three (at least) kinds of pollutions: carbon monoxide/dioxide, nitrogen oxides (NOx) and ozone (O3). Of course, hydrogen will not produce carbon oxides, but it will likely still produce nitrogen oxides and ozone. These are not created by the fuel burning, but by the effect of heat on the air (ie. the nitrogen in the NOx come from the air).
2) How do you produce hydrogen? If you use electrolysis, then you need to get the energy from some place. If you burn fuel to get that energy, you're just moving the pollution. Note: while power plants are more efficient than a normal gas engine, the gain you have will likely be lost in the electrolysis.
Think of him as Canada's Al Gore, but on acids.
I think Dan Quayle would be more appropriate...
It prohibits forged headers on spam, not spam per se.
To me, it's the same thing... because a spammer that's dumb enough to but his own e-mail in the reply-to field will do that mistake only once!
You, as a poster, are liable for what you write
I'm sorry, but you have always been liable for what you say, long before the DMCA, and that's not a bad thing in itself.
Slashdot is liable for everything written on Slashdot.
In this case, Slashdot was not liable for the content. In this case, a copyright infringement was found in a comment and Slashdot was asked to "help" repair de "damage" by removing the comment. That's all.
I still don't agree with copyrights on a this kind of stuff, but that's another matter.
OK, you're right. Let's destroy all these nuclear plants and dams... Hey everybody! Let's go solar for the whole planet!
- Yes, but what do I do when winter days are 2 hours long?
I never said it created mercury! I said that it caused mercury pollution...
Costs: $25K for 10kW of electricity
Cool, scaling that you get more than a billion for 500 MW of electricity, which is just a normal nuclear plant. (BTW, I'm not saying nuclear power is better). Sure is you can use some heat from the sum to help heat you house, it's always good, but if you want something efficient, you totally change the kind of cells you need...
For example satellite solar cells use semi-conductors like GaAs (Gallium Arsenide), this isn't what I call non-toxic! Except for Silicon (which I don't think is ideal for solar cells), most semiconductors are toxic. Things like GaAs, InGaAs, InP, Se...
There already is mercury, but it's in some non-toxic compound (in the trees, I think). Because forests are flooded, it goes in the water and reacts with something... The fish in the water need hydro-electric plants are full or mercury.