In 1895, the Irish plant physiologists H. H. Dixon and J. Joly proposed that water is pulled up the plant by tension (negative pressure) from above.
Now, if you want to say that the term "negative pressure" is not exactly descriptive or correct then of course you're right; us biologists tend to twist terms to fit our needs quite happily. But I did not mean "lower relative pressure".
The 32 feet figure was given in the link as an example of what vacuum pums can do in a model such as you described, but in plants that's not the case. In plants it is the evaporation of water at the leaves what creates the suction that pulls the water up. That's where the "negative pressure" comes from.
Well, capillary action allows water to flow upwards in small, herbaceous plants. But if you do some numbers you'll find that the capillaries would have to be of an unfeasibly small diameter to allow that water to go up a 30 meter tree for example.
The most important action that allows water to go up in those big trees is negative pressure at the leaves, created by the evaporation of water. Take a look here.
So they use P2P so that I can send part of the contents to people with MY bandwidth (baid by me on a monthly basis), but comes with Digital Restrictions Management so that I cannot actually use it as I want?
You're missing the important point of how humans define intelligence. Why is a dog intelligent? Because you can teach him to follow orders, and the more orders (or more complex) orders he can follow, the smarter it is considered.
1) ARRL is not an impartial party on this issue, no matter how you look at it. It's the same as those market studies funded by microsoft about how windows is cheaper in the long run than Linux, even if Linux software is free. I can't trust them to be impartial over the health issues of the other technology that wants their frequencies. They are *not* the ones who should be doing those studies, because they will be skewed. It may very well be true, but I won't give them a cent's credit until I see an independent study.
2) The reason is simple, this technology can deliver broadband to places where it might never arrive otherwise. Areas with low density population where simply putting new cable is too expensive for the outcome. That in my book is a pretty damn good reason, good enough to remove the AR as the allocator of those frequencies.
Yeah I remember those. As far as everyone was concerned, they WERE legal tender. Perhaps the government didn't approve of it, but we all know how free trade works, you can exchange goods for whatever you want. The first time I got one, though, I was mighty surprised; the cashier was then the surprised one when I asked for a coin and though he had made a mistake. Stupid Spaniards he probably thought:D
My original reply was to that link about "safety of broadband over power cables", and as I see it, it's not the place of the ARRL to do such comments. So stop putting red herrings about FCC regulations and interference.
If they have concerns over the FCC regulations that these guys might break and that affects them, say so, but don't try to undermine them with propaganda, plain and simple.
A different issue is: if BPE breaks FCC regulations they have to solve it. If the only regulation they break is interferring with Amateur Radio maybe that frequency should not be used by AR. Who's in the right here, the minority that already enjoys AR or the potential majority that will benefit of broadband? No service has ever provided benefits before it started to be used so I hardly see that as an argument.
Have you noticed where most Amateur Radio operators are located? Not usually in the cities, where DSL and cable are cheap and plentiful... [...] I don't recall the ARRL trying to block cable Internet or DSL.
That's right, this technology is probably after broadband services in areas where normal DSL or Cable don't reach. But they're not out to get the Radio operators, that's neither their intention not their primary target. These guys seem to be complaining about how this will destroy their hobby. So their hobby takes precedence over the delivery of broadband to a potentially much higer population?
Look, it's all nice and dandy they want to keep their hobby. At some point people who were building flying devices wanted too, but got shut down when commercial aviation took precedence. Tough, get over it.
But the main thing I was referring to was that the ARRL was not an impartial observer. You, in fact reinforced that point. If you had bothered to follow the grandparent link you'll see how the ARRL was talking about safety and health risks assotiated with broadband over power lines. It was not addressing only interference with their hobby. You claim they want to make their concern about their activity be known, which is fair enough, but when they start blowing wistles about (and I quote): "The hazards include exceeding MPE (maximum permissable exposure), RF burns", I call bullshit. I don't trust involved parties when propaganda can be a powerful weapon (and far too oversued for my taste).
Anyway, my main grip with this (it's not the only product I see doing the same) is still keyboard design. You are supposed to write with your thumbs while grabbing the thing, why not arrange the keys around the thumbs then? It's not like anyone will be able to touch-type there anyway with that size.
Also start using some fucking trackballs again, I'm sick of these useless annoying touchpads. It'd be specially annoying in something that size.
Bullshit. There is no easy alternative. The "artists" go the easy route and sign up with the RIAA labels because it's the easiest and most comfortable way to get their dime-a-dozen craptacular pop music out. The alternatives would require hard work and talent, so I'm not surprised they don't take them given their lack of both. But they exist.
If you're using the additional monitors for just peripheral vision in a racing game and/or information displays (merely text or 2D graphs/sprites at best), the card doesn't (or better say shouldn't) have to chug out all the gory details with high resolution textures and pixel shaders running full force on the "extra displays".
Knoppix is definitely gaining popularity. After all it's a coaster you can give to anyone with a computer and they can give it a try without ever installing a damn thing, everyone is trying it and there's a definite coolness factor involved
But if it's not popularity you are looking at (well, the original article is, but let's be a bit broader here), but rather functionality or what different "roles" or market niches the distro is filling, then the answer is definitely not Knoppix. What distros are people putting in their (Beowulf;) ) clusters in their companies? Dumb terminal boxes? Small network servers? Web servers? I think Knoppix will be hard pressed to compete there.
But for the desktop, Knoppix's future looks really bright if they keep up the great work they're doing.
Luckily for us, the extremophiles that live at pH of near zero on earth are eukariotes and archaea, so they do have catalase we could use if we wanted to. I think the real problem is the lower than freezing temperature;)
It's called Catalase. It's an enzyme that is present in many living organisms and catalyzes the reaction 2H2O2 -> 2H2O + O2 . Plants have it too. In Europa, though, the reaction might be very slow unless there is a catalyst to help it.
So it really depends on how you define "usable", that is, what you really want to do with that oxygen peroxide;)
The pH is the negative of the base 10 logarithm of the H3O+ ion concentration in water. At any given point, the pH + pOH = 14, and both the pH and pOH of neutral water are 7.
Well you see, the parasites that affect you or land animals or fresh water fish are used to not having high salt contents, but the parasites of marine fish are perfectly happy with that. Ask any aquarium enthusiast that keeps salt water fish;)
Don't forget that quick sorting is only part of the problem, not the whole thing. Another important factor is that fish are wounded/damaged by the nets even if they are smaller than the holes, they lose scales and the wounds get infected (hence they end up dying anyway). This has been somewhat improved with modern nets but still needs work.
Anyway, props to them with this new system. Despite what the tree-huggers may say, we need the fishing industry to feed ourselves, and the better we can catch the appropiate fish while leaving the rest undisturbed, the better.
Slashdot Mirror
From the link:
In 1895, the Irish plant physiologists H. H. Dixon and J. Joly proposed that water is pulled up the plant by tension (negative pressure) from above.
Now, if you want to say that the term "negative pressure" is not exactly descriptive or correct then of course you're right; us biologists tend to twist terms to fit our needs quite happily. But I did not mean "lower relative pressure".
The 32 feet figure was given in the link as an example of what vacuum pums can do in a model such as you described, but in plants that's not the case. In plants it is the evaporation of water at the leaves what creates the suction that pulls the water up. That's where the "negative pressure" comes from.
Well, capillary action allows water to flow upwards in small, herbaceous plants. But if you do some numbers you'll find that the capillaries would have to be of an unfeasibly small diameter to allow that water to go up a 30 meter tree for example.
The most important action that allows water to go up in those big trees is negative pressure at the leaves, created by the evaporation of water. Take a look here.
So they use P2P so that I can send part of the contents to people with MY bandwidth (baid by me on a monthly basis), but comes with Digital Restrictions Management so that I cannot actually use it as I want?
Yeah right, that'll happen.
You're missing the important point of how humans define intelligence. Why is a dog intelligent? Because you can teach him to follow orders, and the more orders (or more complex) orders he can follow, the smarter it is considered.
;)
Makes you wonder doesn't it
1) ARRL is not an impartial party on this issue, no matter how you look at it. It's the same as those market studies funded by microsoft about how windows is cheaper in the long run than Linux, even if Linux software is free. I can't trust them to be impartial over the health issues of the other technology that wants their frequencies. They are *not* the ones who should be doing those studies, because they will be skewed. It may very well be true, but I won't give them a cent's credit until I see an independent study. 2) The reason is simple, this technology can deliver broadband to places where it might never arrive otherwise. Areas with low density population where simply putting new cable is too expensive for the outcome. That in my book is a pretty damn good reason, good enough to remove the AR as the allocator of those frequencies.
Yeah I remember those. As far as everyone was concerned, they WERE legal tender. Perhaps the government didn't approve of it, but we all know how free trade works, you can exchange goods for whatever you want. The first time I got one, though, I was mighty surprised; the cashier was then the surprised one when I asked for a coin and though he had made a mistake. Stupid Spaniards he probably thought :D
Aha, so you're the one that made all the difference, feel special! :D
Stop focussing on the wrong issue!
My original reply was to that link about "safety of broadband over power cables", and as I see it, it's not the place of the ARRL to do such comments. So stop putting red herrings about FCC regulations and interference.
If they have concerns over the FCC regulations that these guys might break and that affects them, say so, but don't try to undermine them with propaganda, plain and simple.
A different issue is: if BPE breaks FCC regulations they have to solve it. If the only regulation they break is interferring with Amateur Radio maybe that frequency should not be used by AR. Who's in the right here, the minority that already enjoys AR or the potential majority that will benefit of broadband? No service has ever provided benefits before it started to be used so I hardly see that as an argument.
"Troll", heh.
Have you noticed where most Amateur Radio operators are located? Not usually in the cities, where DSL and cable are cheap and plentiful... [...] I don't recall the ARRL trying to block cable Internet or DSL.
That's right, this technology is probably after broadband services in areas where normal DSL or Cable don't reach. But they're not out to get the Radio operators, that's neither their intention not their primary target. These guys seem to be complaining about how this will destroy their hobby. So their hobby takes precedence over the delivery of broadband to a potentially much higer population?
Look, it's all nice and dandy they want to keep their hobby. At some point people who were building flying devices wanted too, but got shut down when commercial aviation took precedence. Tough, get over it.
But the main thing I was referring to was that the ARRL was not an impartial observer. You, in fact reinforced that point. If you had bothered to follow the grandparent link you'll see how the ARRL was talking about safety and health risks assotiated with broadband over power lines. It was not addressing only interference with their hobby. You claim they want to make their concern about their activity be known, which is fair enough, but when they start blowing wistles about (and I quote): "The hazards include exceeding MPE (maximum permissable exposure), RF burns", I call bullshit. I don't trust involved parties when propaganda can be a powerful weapon (and far too oversued for my taste).
And of course we know The Amateur Radio Relay League is a perfectly neutral and uninterested observer in this. Oh wait...
Now you can have both!
It's a good thing I have a big hand :p
Anyway, my main grip with this (it's not the only product I see doing the same) is still keyboard design. You are supposed to write with your thumbs while grabbing the thing, why not arrange the keys around the thumbs then? It's not like anyone will be able to touch-type there anyway with that size.
Also start using some fucking trackballs again, I'm sick of these useless annoying touchpads. It'd be specially annoying in something that size.
There is no alternative.
Bullshit. There is no easy alternative. The "artists" go the easy route and sign up with the RIAA labels because it's the easiest and most comfortable way to get their dime-a-dozen craptacular pop music out. The alternatives would require hard work and talent, so I'm not surprised they don't take them given their lack of both. But they exist.
Oh yeah I know, it's my webpage what has been live for just a couple of months ^_^
I found it funny that I got slurp-ed just yesterday and now Yahoo shows hits that didn't show up before when it was google-based.
66.196.65.34 - - [17/Feb/2004:01:44:11 +0100] "GET /robots.txt HTTP/1.0" 404 284 "-" "Mozilla/5.0 (Slurp/si; slurp@inktomi.com; http://www.inktomi.com/slurp.html)"
/psicop HTTP/1.0" 301 316 "-" "Mozilla/5.0 (Slurp/cat; slurp@inktomi.com; http://www.inktomi.com/slurp.html)"
/psicop/ HTTP/1.0" 200 5476 "-" "Mozilla/5.0 (Slurp/cat; slurp@inktomi.com; http://www.inktomi.com/slurp.html)"
66.196.72.42 - - [17/Feb/2004:01:44:14 +0100] "GET
66.196.72.42 - - [17/Feb/2004:01:45:25 +0100] "GET
Sure enough, my site! is! now! on! Yahoo! including some pages that don't show up in Google (like the Psi Cop page mentioned up there). Interesting.
mount to nothing when you don't know all the variables.
So really, don't get your panties in a know every time a new alarm sounds.
I have Google as my number one source of information on the internet.
Whatever happened to The Onion?
If you're using the additional monitors for just peripheral vision in a racing game and/or information displays (merely text or 2D graphs/sprites at best), the card doesn't (or better say shouldn't) have to chug out all the gory details with high resolution textures and pixel shaders running full force on the "extra displays".
Knoppix is definitely gaining popularity. After all it's a coaster you can give to anyone with a computer and they can give it a try without ever installing a damn thing, everyone is trying it and there's a definite coolness factor involved
;) ) clusters in their companies? Dumb terminal boxes? Small network servers? Web servers? I think Knoppix will be hard pressed to compete there.
But if it's not popularity you are looking at (well, the original article is, but let's be a bit broader here), but rather functionality or what different "roles" or market niches the distro is filling, then the answer is definitely not Knoppix. What distros are people putting in their (Beowulf
But for the desktop, Knoppix's future looks really bright if they keep up the great work they're doing.
Luckily for us, the extremophiles that live at pH of near zero on earth are eukariotes and archaea, so they do have catalase we could use if we wanted to. I think the real problem is the lower than freezing temperature ;)
It's called Catalase. It's an enzyme that is present in many living organisms and catalyzes the reaction 2H2O2 -> 2H2O + O2 . Plants have it too. In Europa, though, the reaction might be very slow unless there is a catalyst to help it.
;)
So it really depends on how you define "usable", that is, what you really want to do with that oxygen peroxide
A pH of 0 indicates a concentration of hydronium atoms in water of 1 (in moles/litre).
I think you're confused:
pH = -log10([H3O+]).
pH can be = 0 if [H3O] = 1. Of course, getting to pH 0 is mighty hard, but getting near it is very possible.
The pH is the negative of the base 10 logarithm of the H3O+ ion concentration in water. At any given point, the pH + pOH = 14, and both the pH and pOH of neutral water are 7.
Well you see, the parasites that affect you or land animals or fresh water fish are used to not having high salt contents, but the parasites of marine fish are perfectly happy with that. Ask any aquarium enthusiast that keeps salt water fish ;)
Don't forget that quick sorting is only part of the problem, not the whole thing. Another important factor is that fish are wounded/damaged by the nets even if they are smaller than the holes, they lose scales and the wounds get infected (hence they end up dying anyway). This has been somewhat improved with modern nets but still needs work.
Anyway, props to them with this new system. Despite what the tree-huggers may say, we need the fishing industry to feed ourselves, and the better we can catch the appropiate fish while leaving the rest undisturbed, the better.