Mod parent up! Not only is the 12-year-old McLaren F1 still one of the quickest and fastest cars ever built, it does it without resorting to 4 turbos and 1,001 horsepower simply by being lighter.
Not only that, but Murray also worked to finalize the design of the (already nearly complete) Caparo T1, which is even quicker (0-60 in 2.5 seconds), and with less horsepower than the F1. How? It weighs about half a ton.
The Audi A2 can (or should I say "could" since it was discontinued) do 128 MPG, using imperial gallons, which works out to almost exactly 100 miles per US gallon. They accomplished this mostly by making the car out of aluminum.
Actually, the Jetta TDI (as well as the Beetle TDI and I believe the Golf TDI) have been in the USA since 2002, if not before. I personally test drove a 2002 or 2003 Jetta (wagon!) with the TDI engine in Georgia. They get about 40-42 MPG. If the guy had taken better care of it, I probably would have bought the car.
Check out sites like Auto Trader if you're interested in buying one.
Another important benefit for such an improvement would be for cool/quiet computing, which is high on my list of desired system attributes. To put it simply, it's like taking a 4 or 5 watt heater out of the machine (which should also make it last longer).
I'm a little concerned about parking those heads all the time, however. Last thing I need is a cool-running drive with worn-out ramps...
You may want to re-read my comment above. Perhaps I was not clear.
When my friend (now in his 20's) had his first reaction, his family had to take him to the hospital to bring it under control (yes, I've talked with them). Since discovering the source, he has had a very few accidental ingestions of peanut products (usually in a restaurant where the waiter didn't know that something had peanut products when asked) and had severe reactions each time. (By the way, according to him, peanut oil and products fried therein are usually fine.)
From my earlier comment: I figure [the smell] may cause a very mild immune response
My personal hypothesis of the source of his dislike is just that -- a personal hypothesis. But his allergy to peanuts is not something driven by dislike for them; rather, his dislike is caused, immunologically or psychologically, by his preexisting condition.
I know someone who has this kind of peanut allergy, and he really dislikes the smell of peanuts. As far as I know, it doesn't cause a reaction per se, but he really hates the smell of peanuts or peanut butter, even if it's just one person eating it near him. I figure it may cause a very mild immune response, which is why he hates the smell. (Prior to his first reaction, he liked peanut butter.)
The metadata under discussion is embedded in the file in a different place than the audio bitstream, usually at the beginning or end of the file. For example, if you open up an MP3 file in a hex editor, you will see the ID3 tag (if any) before the audio stream even starts. MP3 mplayers (hardware and software) are made to display the metadata on screen (if any), or to ignore it outright. At no point is it put through the speakers (unless someone really breaks the program somehow).
Believe me, you could definitely hear the difference if the program tried to put this kind of metadata through the speakers. Have you ever pushed a text file through your sound card? On linux systems, the command is usually
cat file.txt >/dev/dsp
and it sounds horrible.
In short, don't worry about it. You'll know if it tries to put metadata through.
You're thinking of watermarking; that's a different story, and is not what is discussed in the article, but there may possibly be watermarks in iTunes store files. I doubt it, however, simply because you would have to generate a unique watermark for each customer, and apply it to every file downloaded, which makes for significant overhead with little or no benefit either to Apple or to the customer.
I have only worked with EDGE, EVDO (Verizon only), and GPRS. As has been mentioned, EVDO generally has better latency, plus better bandwidth. GPRS is sub-dialup. Like 14.4 speeds. Cingular's GPRS is usually noticeably better than T-Mobile's, though.
The question of whether you would want to get the iPhone now or later (or at all) will depend on how much you will need the extra performance of EVDO, not to mention the question of if they'll even put EVDO in it.
Way to convince me of your point of view. As if I'll just repent on the spot because you said the Magic Words. But I digress...
Disclaimer: I have almost no knowledge of the Sprint EVDO network; EVDO in my experience is generally Verizon only.
As has been pointed out, the main difference is latency, not bandwidth. For my employer's purposes, EVDO isn't that much faster than EDGE simply because it's mainly single transfers of relatively large files, not Web browsing. (GPRS, by the way, IS sub-dialup. We're fortunate if we can get 14.4 performance on it.)
For Web browsing, I wouldn't be surprised if the gap were larger, and not simply because of theoretical maximum (remember, real world performance really can approach theoretical max, plus inefficiencies in one carrier's system may be greater than that in another's, which could explain why EVDO customers aren't as near the theoretical limit as the EDGE customers get) but also because Verizon usually has better coverage, which means you stay at higher speeds further out than the good EDGE service area.
That's why, although we stick with the GSM carriers because they're cheaper, we use Verizon where there is spotty GSM coverage.
I work with and test EVDO and EDGE data modems (same model, different carriers), and I can tell you definitely that EVDO, while faster, is NOT 4 times as fast. It's more like 20-30% faster in my experience.
Tokamaks and Fusors do indeed work by plasma confinement, but the methods are so different that you can't really call a Tokamak a big Fusor. Tokamaks use magnetic fields to try to force the plasma together, while Fusors use the charge of the plasma itself to keep it together. In addition, instead of inducing massive current in the plasma to heat it, Fusors simply accelerate the particles to the energies necessary, because of the favorable MeV/K conversion (for example, 15 keV = 174 megakelvins), thus making the device far simpler and easier to operate (just compare the size of a typical Tokamak to that of a typical Fusor), as well as requiring much less energy.
Again, your point is valid, but Tokamaks aren't that similar to Fusors.
Actually, the exact opposite is true (or, more precisely, the same is true in the inverse). There has been a HUGE increase in the number of pirates in the last few decades, you know.
it appears that the operator is controlling the aircraft in pitch and roll, and perhaps in yaw. How? (it looks like the moving vanes would control yaw)
Yes, the small, black vanes are used to control yaw. If you look closely, you can see some yellow flaps on the bottom which control roll and pitch (what little there is). I don't know much about the Notar.
The Wikipedia article gives the example of the spoon in the flow of water. If the flow of water is the first fluid, where is the second fluid? How is the spoon example different than what happens when air flows over an airfoil? Are we saying that is also an example of Coanda?
The second fluid in the spoon example is the air. Both gases and liquids are fluids.
The spoon example is not much different than airflow over an airfoil. And yes, airfoils (such as wings) do indeed use the Coanda effect to take advantage of the Bernoulli principle to produce lift. If the air (or water, in the case of hydrofoils) didn't stick to the curved surface, it would be extremely difficult for them to produce any lift at all.
The Coanda effect is used primarily by the whole outside surface of the craft. If you look at the top, you can see that although the fan produces downward forces, the air runs right into the solid top surface. From there, it would tend to go directly out to the sides, doing nothing for thrust (imagine attaching a fan to a box such that it's pointing at the box -- will it move if you turn it on?), BUT the surface is curved just so that the thrust remains attached to the surface, and is carried over and downward by the Coanda effect before it separates from the surface. This is what you were referring to when you said:
there are places where the downwash is attached
Keeping the downwash attached to the surface like that, going sideways, over and down, is the Coanda effect in action.
The Wikipedia article describes it as sort of like an inside-out hovercraft.
Never mind the fact that mobile phone software does not have this kind of access to the vibe motor. It can turn the motor on and off, but cannot change the speed of the motor in order to produce the effects described.
Slashdot Mirror
Mod parent up! Not only is the 12-year-old McLaren F1 still one of the quickest and fastest cars ever built, it does it without resorting to 4 turbos and 1,001 horsepower simply by being lighter.
Not only that, but Murray also worked to finalize the design of the (already nearly complete) Caparo T1, which is even quicker (0-60 in 2.5 seconds), and with less horsepower than the F1. How? It weighs about half a ton.
It's an MMS stream: mms://209.73.189.79/md2enc039?StreamID=65100640&pl_auth=5df46a2dcfdbf3f286f7fdb5191b70e3&ht=30&pl_b=00CEBE2CA244BE2D935947EFAA4839EB8E&CG_ID=1369080&Segment=149773
http://www.nasa.gov/multimedia/nasatv/
That's just what they want you to believe...
You mean like this?
Or maybe you wanted a 150 MPG, 5 passenger car.
But then, manufacturers don't always want to sell efficient cars.
The Audi A2 can (or should I say "could" since it was discontinued) do 128 MPG, using imperial gallons, which works out to almost exactly 100 miles per US gallon. They accomplished this mostly by making the car out of aluminum.
Actually, the Jetta TDI (as well as the Beetle TDI and I believe the Golf TDI) have been in the USA since 2002, if not before. I personally test drove a 2002 or 2003 Jetta (wagon!) with the TDI engine in Georgia. They get about 40-42 MPG. If the guy had taken better care of it, I probably would have bought the car.
Check out sites like Auto Trader if you're interested in buying one.
I don't know; it'd be easy to say that open source != free, but that'd be both glib, redundant and not answering the question I guess.ething or other?
I count myself fortunate to have a rather large vocabulary, but I still had to read that 3 times before I realized you weren't talking about GNU libs.I'm a little concerned about parking those heads all the time, however. Last thing I need is a cool-running drive with worn-out ramps...
You may want to re-read my comment above. Perhaps I was not clear.
When my friend (now in his 20's) had his first reaction, his family had to take him to the hospital to bring it under control (yes, I've talked with them). Since discovering the source, he has had a very few accidental ingestions of peanut products (usually in a restaurant where the waiter didn't know that something had peanut products when asked) and had severe reactions each time. (By the way, according to him, peanut oil and products fried therein are usually fine.)
From my earlier comment: I figure [the smell] may cause a very mild immune response
My personal hypothesis of the source of his dislike is just that -- a personal hypothesis. But his allergy to peanuts is not something driven by dislike for them; rather, his dislike is caused, immunologically or psychologically, by his preexisting condition.
I know someone who has this kind of peanut allergy, and he really dislikes the smell of peanuts. As far as I know, it doesn't cause a reaction per se, but he really hates the smell of peanuts or peanut butter, even if it's just one person eating it near him. I figure it may cause a very mild immune response, which is why he hates the smell. (Prior to his first reaction, he liked peanut butter.)
That's no moon, it's a hard drive!
The 1st gen diesel model gets about 70mpg...
"Gaol" posts? I thought you were misspelling something else, but then I realized "gaol" is an old spelling of "jail". Interesting.
It can be explained thusly:
/dev/dsp
The metadata under discussion is embedded in the file in a different place than the audio bitstream, usually at the beginning or end of the file. For example, if you open up an MP3 file in a hex editor, you will see the ID3 tag (if any) before the audio stream even starts. MP3 mplayers (hardware and software) are made to display the metadata on screen (if any), or to ignore it outright. At no point is it put through the speakers (unless someone really breaks the program somehow).
Believe me, you could definitely hear the difference if the program tried to put this kind of metadata through the speakers. Have you ever pushed a text file through your sound card? On linux systems, the command is usually
cat file.txt >
and it sounds horrible.
In short, don't worry about it. You'll know if it tries to put metadata through.
You're thinking of watermarking; that's a different story, and is not what is discussed in the article, but there may possibly be watermarks in iTunes store files. I doubt it, however, simply because you would have to generate a unique watermark for each customer, and apply it to every file downloaded, which makes for significant overhead with little or no benefit either to Apple or to the customer.
Oh, yeah, gotta wait for it to finish...
entities where that scarcity must be artificiality enforced from the outset
;-)
You mean like DRM
I have only worked with EDGE, EVDO (Verizon only), and GPRS. As has been mentioned, EVDO generally has better latency, plus better bandwidth. GPRS is sub-dialup. Like 14.4 speeds. Cingular's GPRS is usually noticeably better than T-Mobile's, though.
The question of whether you would want to get the iPhone now or later (or at all) will depend on how much you will need the extra performance of EVDO, not to mention the question of if they'll even put EVDO in it.
You're full of crap.
Way to convince me of your point of view. As if I'll just repent on the spot because you said the Magic Words. But I digress...
Disclaimer: I have almost no knowledge of the Sprint EVDO network; EVDO in my experience is generally Verizon only.
As has been pointed out, the main difference is latency, not bandwidth. For my employer's purposes, EVDO isn't that much faster than EDGE simply because it's mainly single transfers of relatively large files, not Web browsing. (GPRS, by the way, IS sub-dialup. We're fortunate if we can get 14.4 performance on it.)
For Web browsing, I wouldn't be surprised if the gap were larger, and not simply because of theoretical maximum (remember, real world performance really can approach theoretical max, plus inefficiencies in one carrier's system may be greater than that in another's, which could explain why EVDO customers aren't as near the theoretical limit as the EDGE customers get) but also because Verizon usually has better coverage, which means you stay at higher speeds further out than the good EDGE service area.
That's why, although we stick with the GSM carriers because they're cheaper, we use Verizon where there is spotty GSM coverage.
I work with and test EVDO and EDGE data modems (same model, different carriers), and I can tell you definitely that EVDO, while faster, is NOT 4 times as fast. It's more like 20-30% faster in my experience.
Instead of modding, I had to reply.
Tokamaks and Fusors do indeed work by plasma confinement, but the methods are so different that you can't really call a Tokamak a big Fusor. Tokamaks use magnetic fields to try to force the plasma together, while Fusors use the charge of the plasma itself to keep it together. In addition, instead of inducing massive current in the plasma to heat it, Fusors simply accelerate the particles to the energies necessary, because of the favorable MeV/K conversion (for example, 15 keV = 174 megakelvins), thus making the device far simpler and easier to operate (just compare the size of a typical Tokamak to that of a typical Fusor), as well as requiring much less energy.
Again, your point is valid, but Tokamaks aren't that similar to Fusors.
Actually, the exact opposite is true (or, more precisely, the same is true in the inverse). There has been a HUGE increase in the number of pirates in the last few decades, you know.
it appears that the operator is controlling the aircraft in pitch and roll, and perhaps in yaw. How? (it looks like the moving vanes would control yaw)
Yes, the small, black vanes are used to control yaw. If you look closely, you can see some yellow flaps on the bottom which control roll and pitch (what little there is). I don't know much about the Notar.
The Wikipedia article gives the example of the spoon in the flow of water. If the flow of water is the first fluid, where is the second fluid? How is the spoon example different than what happens when air flows over an airfoil? Are we saying that is also an example of Coanda?
The second fluid in the spoon example is the air. Both gases and liquids are fluids.
The spoon example is not much different than airflow over an airfoil. And yes, airfoils (such as wings) do indeed use the Coanda effect to take advantage of the Bernoulli principle to produce lift. If the air (or water, in the case of hydrofoils) didn't stick to the curved surface, it would be extremely difficult for them to produce any lift at all.
The Coanda effect is used primarily by the whole outside surface of the craft. If you look at the top, you can see that although the fan produces downward forces, the air runs right into the solid top surface. From there, it would tend to go directly out to the sides, doing nothing for thrust (imagine attaching a fan to a box such that it's pointing at the box -- will it move if you turn it on?), BUT the surface is curved just so that the thrust remains attached to the surface, and is carried over and downward by the Coanda effect before it separates from the surface. This is what you were referring to when you said:
there are places where the downwash is attached
Keeping the downwash attached to the surface like that, going sideways, over and down, is the Coanda effect in action.
The Wikipedia article describes it as sort of like an inside-out hovercraft.
Never mind the fact that mobile phone software does not have this kind of access to the vibe motor. It can turn the motor on and off, but cannot change the speed of the motor in order to produce the effects described.