How is this different from any other energy storage medium?
It's not so long as you agree with me that hydrogen is just that -- an energy storage medium -- and not something that we can mine, which is what I was responding to... the notion that hydrogen is around for us to mine or drill up in the same way that we drill up oil or mine coal. It isn't. The only hydrogen we have around this planet is either effectively unavailable to us for energy production (water) or in a form that requires conversion to start this hypothetical "hydrogen economy" (petrochemicals).
I agree, once we get them working, fuel cells and hydrogen could be better than batteries (unless we improve batteries faster than we improve fuel cells), but that won't make hydrogen an alternative to our current methods of energy production.
Well, of course oil is not an alternative energy resource because it is the primary resource. It's also the one that makes us dependent upon the Middle East. That dependence is the only reason that the Wired article even exists. The important thing is -- where will this fabulous hydrogen come from? If it comes from oil, you haven't really reduced your dependence on the Middle East, have you?
there are large deposits of hydrogen all over the world
Really? Where? And please don't say "water" as another follow-up poster did, because thermodynamics requires you to put more energy into electrolysis of water into hydrogen and oxygen than you can later extract.
The only thing I can think of is gas hydrate, which isn't pure hydrogen either, just a form of frozen methane found in the deep ocean. So, it is true that this would be a source of fuel that we could get independently of the Middle East. But it wouldn't require conversion to a "hydrogen economy." We could just as easily burn the methane.
Hydrogen is not an alternative energy resource
on
A Hydrogen-Based Economy
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· Score: 4, Insightful
From the original article:
There's only one way to insulate the US from the corrosive power of oil, and that's to develop an alternative energy resource that's readily available domestically. Looking at the options - coal, natural gas, wind, water, solar, and nuclear - there's only one thing that can provide a wholesale substitute for foreign oil within a decade: hydrogen.
Unless this guy has found a way to mine hydrogen, it's not a resource. It's just a storage medium for energy you've already mined or drilled or pumped (the aforementioned coal, natural gas, and oil) or generated through electrolysis (there's your wind, water, solar, and nuclear).
Hydrogen + fuel cell is just hoped to be either better for storage of electricity than batteries, or cleaner than hydrocarbons (still has to be converted somewhere, generating pollution and CO2), eventually. That's all, until we can use the planet as a Bussard collector.
Is there a reason it looks like a pelvis? Aren't we obsessed enough about our cars already? Now we have to sexualize the PUMP? Oh -- I get it. Nevermind, carry on...
whatever changes strong winds make in the earth's rotation must be temporary because of the conservation of angular momentum.
This would be true if you neglected dissipation/friction, which you shouldn't.
If you really want to get agitated about the earth's rotation slowing down, consider the moon.
Most studies of this sort of thing do have to account for the moon and its tidal coupling to the earth as a leading-order effect on the earth's rotation. The linked article is exploring atmospherics as a second-order effect. Another important second-order effect on the earth's rotation is glacial isostatic adjustment, the viscoelastic response of the earth to loading/unloading from the different mass distributions of glaciers and oceans on the earth's surface. As the earth changes shape, its spin rate changes.
This adjustment also important to us because it is of the same order at many locations as the change in sea level due to the temperature of the ocean.
my 2002 600 mHz iBook updated just fine, and battery life is the same.
Ditto for one such iBook and two different 15" PowerBooks here (mine and those of my coworkers). No issues whatsoever with 10.2.4. Furthermore, 10.2.4 patched a nasty bug that caused laptops running 10.2.3 to kernel panic about 1/5th the time a user logged out from the desktop.
Are they really "leaks" if it is open-source software?
No, if Safari were open-source software, they would not be "leaks" of the compiled application, but Safari is not open-source software. Parts of it are, and those parts have been published openly to the KHTML community. But you can't get all the source code for Safari and compile it yourself. So yeah, these are leaked binaries.
Yeah, Software Update wasn't serving Safari at the time... in my experience it hasn't served any of the new standalone apps (such as the new iPhoto, iMovie, iTunes, Apple X11, and Safari) although it does serve updaters for the same (for example the iMovie 3.0.2 update).
If memory serves, I downloaded the Safari.dmg file from the web onto my PowerBook, and then brought it across via iPod.
I was kinda wondering if others would have better solutions -- at the time I thought to myself, "what if I didn't have this PowerBook? -- which is why I was cagey about it to begin with:)
(even the beta 60 is being installed now as default on Apple demo machines as opposed to IE).
Seriously? I picked up a new machine less than a month ago and I still had to rip out MSIE and install Safari myself. What's more, I stupidly did it in that order, leaving me wondering for a moment or two how I'd bootstrap back onto the web.
The 17" flat panel iMac. Check the specs. It is 1440x900 native, and also does lower resolutions at both 8:5 (1.6:1) and 4:3 (1.33:1, both "stretched and with black bars on the sides) aspect ratios.
Having never used a widescreen aspect ratio screen I was curious as to how games handle these odd resolutions.
Depends on the game, the screen, and the OS.
Some support the native resolution (for example, I can play Civ III or Warcraft III on my 17" FP iMac in 1440x900). This is fantastic.
Some will keep the screen at native resolution and give you bars on the borders (for example, a 1024x768 box inside my 1440x900 screen). This isn't so bad. Also not so bad is linearly downscaling the screen a little bit -- it's not as blurry as you might think, at least not for me in MacOS X -- displaying an 800x600 box inside a 1024x640 screen, for example.
What's annoying is when the game runs fullscreen in a 4:3 resolution and stretches it. This is what Diablo II / LOD does, so it smears 800x600 out laterally to fill the screen. The OS refers to this as a "stretched" resolution and it looks awful. I play this game in windowed mode and reduce my resolution so that it is a window that nearly fills the screen, with my desktop peeking out the sides. Better.
Nearly all the flat panels I see nowadays are in strange resolutions or aspect ratios (my 17" studio display is 5:4 while my iMac is 8:5), and the persistence of companies that continue to try to slap a new acronym on it like FUGA or BARGA is laughable. Just publish the dimensions and resolution, please.
Open your ~/Music/iTunes/iTunes Music folder and option-drag the MP3s out...
Note that I put quotes around "cannot" in my original post. In this case they could make it as "difficult" as with the iPod by storing the downloaded MP3s in an invisible subfolder of the iTunes Music folder. Maybe even one with a "." in front of it.
Which indicates there is something in it that stops the rest of us using it. This would further indicate either a closed format with codecs only for these two. Or DRM on top of something that exists.
Maybe not... it could still be MP3 format and simply managed in software by iTunes to sync only with your iPod. So, not real DRM, or new codecs, but something along the lines of how you "cannot" currently copy your iPod's music to another machine.
Is this recent? I bought an iBook last July with 10.1 and I don't remember getting Quicken.
Quicken has been coming out on iMacs for as long as I can remember (Quicken 2003 at upper right on that page. The iBook also lists Quicken 2003 (lower left) now, but the Wayback Machine suggests that it was not bundled in June. I'm guessing they started shipping Quicken on iBooks in November when they speed-bumped them.
...to avoid having to mention that the web browser that sucks so bad is Internet Explorer.
He was very clear about it on the TV show. Of course, we already knew that and switched long ago to Chimera, Mozilla, or Safari.
He was quite positive about his experience on the TV show, surprisingly to me given how negative he was on the show at other times about Macs even while he was using it for the past few months. He did gripe about the speed of his iBook. My guess is if he had a faster tower, he'd have griped about the price.
Also, he erroneously states in his review that MacOS X comes with Quicken. It doesn't. His iBook does (and so does the iMac), but if you buy MacOS X retail (or a PowerBook or Power Mac) you won't get Quicken.
... why don't people remember... Rosalind Franklin...
People remember "Watson and Crick" because those were the names on their paper. Wilkins declined to have his name included (d'oh!). And Franklin, she certainly does get remembered, but more for being "ripped off" (as many others have told me -- the full story is of course more complex) because she was just a post-doc, or a woman.
Specifically the double-helical structure. Linus Pauling had done earlier theoretical work predicting the formation of helices, but wound up on the wrong track trying to make a triple-helix work for DNA.
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I agree, once we get them working, fuel cells and hydrogen could be better than batteries (unless we improve batteries faster than we improve fuel cells), but that won't make hydrogen an alternative to our current methods of energy production.
The only thing I can think of is gas hydrate, which isn't pure hydrogen either, just a form of frozen methane found in the deep ocean. So, it is true that this would be a source of fuel that we could get independently of the Middle East. But it wouldn't require conversion to a "hydrogen economy." We could just as easily burn the methane.
Hydrogen + fuel cell is just hoped to be either better for storage of electricity than batteries, or cleaner than hydrocarbons (still has to be converted somewhere, generating pollution and CO2), eventually. That's all, until we can use the planet as a Bussard collector.
Is there a reason it looks like a pelvis? Aren't we obsessed enough about our cars already? Now we have to sexualize the PUMP? Oh -- I get it. Nevermind, carry on...
Of course Mr. Banks undoubtedly read "Ringworld."
This adjustment also important to us because it is of the same order at many locations as the change in sea level due to the temperature of the ocean.
I'm a little surprised that the linked MacFixit article had no suggestions about resetting the Power Management Unit for affected users.
Yeah, Software Update wasn't serving Safari at the time... in my experience it hasn't served any of the new standalone apps (such as the new iPhoto, iMovie, iTunes, Apple X11, and Safari) although it does serve updaters for the same (for example the iMovie 3.0.2 update).
I was kinda wondering if others would have better solutions -- at the time I thought to myself, "what if I didn't have this PowerBook? -- which is why I was cagey about it to begin with :)
Some support the native resolution (for example, I can play Civ III or Warcraft III on my 17" FP iMac in 1440x900). This is fantastic.
Some will keep the screen at native resolution and give you bars on the borders (for example, a 1024x768 box inside my 1440x900 screen). This isn't so bad. Also not so bad is linearly downscaling the screen a little bit -- it's not as blurry as you might think, at least not for me in MacOS X -- displaying an 800x600 box inside a 1024x640 screen, for example.
What's annoying is when the game runs fullscreen in a 4:3 resolution and stretches it. This is what Diablo II / LOD does, so it smears 800x600 out laterally to fill the screen. The OS refers to this as a "stretched" resolution and it looks awful. I play this game in windowed mode and reduce my resolution so that it is a window that nearly fills the screen, with my desktop peeking out the sides. Better.
Nearly all the flat panels I see nowadays are in strange resolutions or aspect ratios (my 17" studio display is 5:4 while my iMac is 8:5), and the persistence of companies that continue to try to slap a new acronym on it like FUGA or BARGA is laughable. Just publish the dimensions and resolution, please.
He was quite positive about his experience on the TV show, surprisingly to me given how negative he was on the show at other times about Macs even while he was using it for the past few months. He did gripe about the speed of his iBook. My guess is if he had a faster tower, he'd have griped about the price.
Also, he erroneously states in his review that MacOS X comes with Quicken. It doesn't. His iBook does (and so does the iMac), but if you buy MacOS X retail (or a PowerBook or Power Mac) you won't get Quicken.
Seriously.
I must be almost as dumb as the USPTO.