No, even photovoltaic solar panels aren't passive. They prevent energy that would reaching the ground from doing so, altering the energy balance there. In short there is no form of energy that we can extract from nature that doesn't alter in some way (large or small) the natural energy flows and balance in nature.
Well, but this is only a very local effect. If the solar energy is consumed locally, this effect gets even smaller.
I would say that the biggest environmental problem with solar cells is probably that they change the earth's albedo (being almost black as they should be) so that overall more energy is transmitted to earth from the sun. This would, of course, be also only a local effect.
But maybe someone with more information than you and me can describe the exact energy balance of solar cells?
Maybe you'd be also interested in Atmel's AVR broad line of 8-bit RISC processors. You can find more information here.
IMHO and compared to PICs, they have a very clean architecture (=> smaller code size & a rather high speed for 8-bit uCs). There is also a GNU GCC port which AFAIK does not exist for PIC processors.
No, I don't want to start a flamewar, and no, I'm not an employee of Atmel, just a hobbyist using their uCs:)
Speaking of ruptured braincells, there's at least two errors in the above calculations. I'm too tired to figure out how to correct them, so I'll just say: please give bonus points to anyone who finds three mistakes:)
The other two ones still need to be found - but I just found the third mistake. Where I my bonus points?:))
Namely if you monitor the voltage at two points along the wire then you can distinguish between a wave proapgating from left to right and right to left. So you can now determine what fraction of the noise is coming from the left and what is coming from the right. Even if the noise level made his hard to do, there's also the moment of the resistor switch to capture. Each time the resistor is changed, even if it were perfectly synchronous, the left side's noise will reach the left tap sooner he the right tap.
I was thinking about the same lines (pun intended), he seems to model the line just as something were one can only measure I/U at one point (i.e. only one 'tee' connector in the line).
He says that it analysis is impossible by looking at the poynting vector (presumably misspelled as pointing vector?!) though, on page 5, just before the start of section 3.2. That is essentially what looking at different points on the line does, isn't it?
The reason for that is still unclear for me, though, even after reading the paragraph repeatedly. He speaks about the net flow of energy, which you and I are not thinking about here.... But he and his group will surely have put some thoughts into that:)
What else...? Maybe switch the resistors at random intervals? But that'd make it impossible to determine the changes for the other end...;)
It doesn't appeal strongly to the social instincts of the (and I'm generalizing) female psyche.
I'd probably have written a similar thing if I were to post similar thoughts like you.
But what a wonderful world would that be where you do not had to write such disclaimers into each and every, even informal discussion about interpersonal topics! Because everytime someone, some group takes offence as being generalized and trampled upon by such statements. Therefore these inserts which IMHO remotely resemble lawyer-speak.
Maybe it would be a world without a need for feminists, without gays forming 'gay pride' groups because they do not need to and noone segregating themselves into ghettoes for no real reason.
Well, you're right and the GP should realize that it does NOT somehow invalidate the idea of science.
Being sceptical of reality just broadens your philosophical options which you can explore. Granted, it is nowadays very easy to believe that an independent reality does exist but if you do that, you, GP, just found your 'god' so to speak.
I know that I don't know if it exists. But it is often a good assumption to work with.
I've tried explaining the Sony rootkit and DRM in general to a couple co-workers the other day and it didn't go so well.
Well, but most of your co-workers and friends probably also use windows and most of them have caught a trojan or spyware once, didn't they? If you call this thing by name, people should have a clear view about it:)
The most surprising thing to me about this whole affair is that there are companies selling rootkits.
Rootkit, rootkit, rootkit. No one understands that. At least here in germany, calling it a "Trojaner" gives people something to which they can relate to (as this is really a trojan).
I do find it very interesting that noone in the media is calling this a trojan, only a 'rootkit that (accidentally) enables trojans to get into the PC'. I'm normally no conspiracy theorist, but I wonder if the spin is intentional or just because no journalist has a clue.
No, you still can't detect lies with an MRI. You can observe brain activity which may or may not correlate to deception, which will differ greatly for each individual you examine.
Well, then lets include the needed brain parameters as biometric data on the next version passports. As there is nothing to hide...
RMS played the UN security like puppets on strings just the same way as terrorists play the administration and congress: they know what the knee-jerk reaction will be and they use it to their advantage.
With the small but important difference that RMS did not harm or kill anyone. Makes it easy to sympathize with him and his cause, which is not possible with terrorists.
in particular, the assumption that the laws of physics are the same everywhere that they are meaningful.
True, but I think you can even broaden this statement by saying that is just one of the simplyfing assumptions (unless there is a reason to believe otherwise) for any scientific work.
Anyway, having an idiotic Steiner reference modded up more than your post is a very sad day for/.!
Have the eco-nuts and new-age-zealots finally overran this place!?
The Coke/Pepsi ad wars make sense because they crowd viable third-party competitors out of the market. There are smaller, limited players like RC Cola, but the whole notion of it being an either/or choice with Coke or Pepsi benefits both companies.
This would be the same situation, just with the two companies forming a cartel.
Exactly! you're right. I find that with each waking moment advertising is getting more invasive and more offensive. It needs to stop. But I don't think I should have to pay to make it stop.
Yes, and to add to that, I can't really imagine that ad wars for example between pepsi and cola make sense economically. It's just about taking market shares from others, i.e. you have to make ads because others do it and your image would perish otherwise.
Not to say that there are no useful and/or informative ads.
Is that the legal point of view in your country (presumably the US) or is this just your opinion? Although stated as a fact, it seems to me like it is your opinion... [? Mods: Insightful vs. Informative...!]
I wholly agree with your ordering of the different severities of copyright violation, though.
telnet - no, I never telnet to login to a machine, but I do it to test if a port is open, what's listening there, etc. very handy.
A bit OT, but I have to say that I do use telnet, but only on my home network where I have 100% control. Some of my machines are simply very resource-constrained so telnet still makes sense here.
For cross-internet or other insecure connections, I always use ssh though.
I always found roleplaying boring and the same goes for star wars cultism. Well, people still call me a nerd as I fulfill many other qualifications (socially awkward, hw/sw tinkering, programming - of course).
Somehow (this is not meant as an offense) I feel that those roleplayers like to detach themselves from the real world in their games and that this is their primary motivation to do this.
Maybe some people are fascinated by detached fantasies and others are fascinated by the real world around them and maybe extrapolations (how the world could be changed).
That's the usual cat-and-mouse game. I'd rather have some regulation, yes regulation (it's a bad word here, isn't it?:) in place that prevents my provider from filtering or fiddling with any traffic if it advertises a TCP/IP internet connection.
I want raw IP, no modifications. Maybe for some people content filtering (virus protection etc.) would be a service, but that should be entirely optional.
Slashdot Mirror
No, even photovoltaic solar panels aren't passive. They prevent energy that would reaching the ground from doing so, altering the energy balance there. In short there is no form of energy that we can extract from nature that doesn't alter in some way (large or small) the natural energy flows and balance in nature.
Well, but this is only a very local effect. If the solar energy is consumed locally, this effect gets even smaller.
I would say that the biggest environmental problem with solar cells is probably that they change the earth's albedo (being almost black as they should be) so that overall more energy is transmitted to earth from the sun. This would, of course, be also only a local effect.
But maybe someone with more information than you and me can describe the exact energy balance of solar cells?
Nuclear power doesn't derive its energy from the sun.
No, but it does derive it's power from heavy elements that were created by the explosions of older stars.
And so does geothermal energy, which is feasible because of decaying radioactive elements (K-40 etc.) in the earth's interior.
Maybe you'd be also interested in Atmel's AVR broad line of 8-bit RISC processors. You can find more information here.
:)
IMHO and compared to PICs, they have a very clean architecture (=> smaller code size & a rather high speed for 8-bit uCs). There is also a GNU GCC port which AFAIK does not exist for PIC processors.
No, I don't want to start a flamewar, and no, I'm not an employee of Atmel, just a hobbyist using their uCs
Good luck securing all the open wireless access points by law enforcement.
But probably the ones with open WLANs wil be 'guilty' of anything accused. Someone simply *has* to go to jail!
$15*1,000 = £15,000
:)
:))
dollar and pound?
Speaking of ruptured braincells, there's at least two errors in the above calculations. I'm too tired to figure out how to correct them, so I'll just say: please give bonus points to anyone who finds three mistakes
The other two ones still need to be found - but I just found the third mistake. Where I my bonus points?
Namely if you monitor the voltage at two points along the wire then you can distinguish between a wave proapgating from left to right and right to left. So you can now determine what fraction of the noise is coming from the left and what is coming from the right. Even if the noise level made his hard to do, there's also the moment of the resistor switch to capture. Each time the resistor is changed, even if it were perfectly synchronous, the left side's noise will reach the left tap sooner he the right tap.
:)
;)
I was thinking about the same lines (pun intended), he seems to model the line just as something were one can only measure I/U at one point (i.e. only one 'tee' connector in the line).
He says that it analysis is impossible by looking at the poynting vector (presumably misspelled as pointing vector?!) though, on page 5, just before the start of section 3.2. That is essentially what looking at different points on the line does, isn't it?
The reason for that is still unclear for me, though, even after reading the paragraph repeatedly. He speaks about the net flow of energy, which you and I are not thinking about here....
But he and his group will surely have put some thoughts into that
What else...? Maybe switch the resistors at random intervals? But that'd make it impossible to determine the changes for the other end...
It doesn't appeal strongly to the social instincts of the (and I'm generalizing) female psyche.
I'd probably have written a similar thing if I were to post similar thoughts like you.
But what a wonderful world would that be where you do not had to write such disclaimers into each and every, even informal discussion about interpersonal topics!
Because everytime someone, some group takes offence as being generalized and trampled upon by such statements. Therefore these inserts which IMHO remotely resemble lawyer-speak.
Maybe it would be a world without a need for feminists, without gays forming 'gay pride' groups because they do not need to and noone segregating themselves into ghettoes for no real reason.
The effective number of pixels gets much larger if one stitches multiple images together - something which has been AFAIK a lot for hubble images!
sorry, bad karma makes people do this kind of post... :(
:-)
Eh? Demanding sympathetic modders?!
Is this the newest trick after
"I'll probably get modded down for this"
and
"Don't mod me up"?
I doubt that this will work
Well, you're right and the GP should realize that it does NOT somehow invalidate the idea of science.
Being sceptical of reality just broadens your philosophical options which you can explore. Granted, it is nowadays very easy to believe that an independent reality does exist but if you do that, you, GP, just found your 'god' so to speak.
I know that I don't know if it exists. But it is often a good assumption to work with.
I've tried explaining the Sony rootkit and DRM in general to a couple co-workers the other day and it didn't go so well.
:)
Well, but most of your co-workers and friends probably also use windows and most of them have caught a trojan or spyware once, didn't they?
If you call this thing by name, people should have a clear view about it
The most surprising thing to me about this whole affair is that there are companies selling rootkits.
Rootkit, rootkit, rootkit. No one understands that. At least here in germany, calling it a "Trojaner" gives people something to which they can relate to (as this is really a trojan).
I do find it very interesting that noone in the media is calling this a trojan, only a 'rootkit that (accidentally) enables trojans to get into the PC'. I'm normally no conspiracy theorist, but I wonder if the spin is intentional or just because no journalist has a clue.
No, you still can't detect lies with an MRI. You can observe brain activity which may or may not correlate to deception, which will differ greatly for each individual you examine.
Well, then lets include the needed brain parameters as biometric data on the next version passports. As there is nothing to hide...
RMS played the UN security like puppets on strings just the same way as terrorists play the administration and congress: they know what the knee-jerk reaction will be and they use it to their advantage.
With the small but important difference that RMS did not harm or kill anyone. Makes it easy to sympathize with him and his cause, which is not possible with terrorists.
in particular, the assumption that the laws of physics are the same everywhere that they are meaningful.
/.!
True, but I think you can even broaden this statement by saying that is just one of the simplyfing assumptions (unless there is a reason to believe otherwise) for any scientific work.
Anyway, having an idiotic Steiner reference modded up more than your post is a very sad day for
Have the eco-nuts and new-age-zealots finally overran this place!?
The Coke/Pepsi ad wars make sense because they crowd viable third-party competitors out of the market. There are smaller, limited players like RC Cola, but the whole notion of it being an either/or choice with Coke or Pepsi benefits both companies.
This would be the same situation, just with the two companies forming a cartel.
Exactly! you're right. I find that with each waking moment advertising is getting more invasive and more offensive. It needs to stop. But I don't think I should have to pay to make it stop.
Yes, and to add to that, I can't really imagine that ad wars for example between pepsi and cola make sense economically.
It's just about taking market shares from others, i.e. you have to make ads because others do it and your image would perish otherwise.
Not to say that there are no useful and/or informative ads.
Is that the legal point of view in your country (presumably the US) or is this just your opinion?
Although stated as a fact, it seems to me like it is your opinion... [? Mods: Insightful vs. Informative...!]
I wholly agree with your ordering of the different severities of copyright violation, though.
Or, another, very interesting german article!
Or, for example, see this article.
telnet - no, I never telnet to login to a machine, but I do it to test if a port is open, what's listening there, etc. very handy.
A bit OT, but I have to say that I do use telnet, but only on my home network where I have 100% control. Some of my machines are simply very resource-constrained so telnet still makes sense here.
For cross-internet or other insecure connections, I always use ssh though.
I always found roleplaying boring and the same goes for star wars cultism. Well, people still call me a nerd as I fulfill many other qualifications (socially awkward, hw/sw tinkering, programming - of course).
Somehow (this is not meant as an offense) I feel that those roleplayers like to detach themselves from the real world in their games and that this is their primary motivation to do this.
Maybe some people are fascinated by detached fantasies and others are fascinated by the real world around them and maybe extrapolations (how the world could be changed).
Well, lawsuits are written on paper. And paper has a higher density than water. It should be easy to swim in them ... if only they'd be liquid :)
We need a free ad-hoc P2P VPN application.
:) in place that prevents my provider from filtering or fiddling with any traffic if it advertises a TCP/IP internet connection.
That's the usual cat-and-mouse game. I'd rather have some regulation, yes regulation (it's a bad word here, isn't it?
I want raw IP, no modifications. Maybe for some people content filtering (virus protection etc.) would be a service, but that should be entirely optional.
In fact we'd like this whole VoIP thing to be un-invented.
I hope you can still seperate your personal and your company's opinion!