Phones are still an order of magnitude too slow (at least) for their UI. My latest phone is the quickest yet but still nowhere near as responsive as it should be. We aren't even close yet. I would add that it may be business model, as UI lag is the #1 cause of high-speed smartphone-concrete interaction, thus leading to new phone purchases.
The iterative approach is pretty common: buy as much as you can afford and then buy more when you can justify it. In general you'll want as much bandwidth and as many channels as budget allows. You might also try renting first if you are looking at serious kit.
I lost my phone in a bar in Wisconsin and found it three months later in my bedroom in Vermont. I wish it had GPS, it could have told me where it had been.
The summary says that 54% of filesharers are children, when the linked article says that in fact 54% of children are filesharers, which is actually much more interesting.
I liked the series where Death, Fate, Time, etc. are personified. I am slapping myself because I can't remember the name of the series, but the first book was about Death, Time was #2 I think, and the last two (6&7) were Satan and God.
These and Xanth are especially good because they don't aspire to literature, which I think is better appreciated a few years later. Better off saving Heinlein, Card (Orwell, Huxley) until there is a bit of personal context.
What spoiler? The last new episode (forgetting Razor) was broadcast over a year ago! It can hardly be considered a spoiler if the information has been in the public domain for 12 months. Honestly, keep up.
Combining the status and location bars is a great idea. Having read the article on a PDA, I only wish M$ had been as clever with Pocket IE... Could use the extra screen real estate.
I was speaking more to the need for components that are rated to withstand the high voltage from the AC line. Transistors, caps, etc. on the primary side of the required isolation transformer (which is the main shock prevention mechanism) all need to be rated for the 180 or so volts coming from the line (~400v in Europe).
Even at 50v, you still need parts rated for that kind of voltage.
When you are converting 5 or 12 to some other nearby voltage, like 3.3 or 1.2, it's a lot more straightforward. No isolation, cheaper components, etc.
Telecom is kind of what you are talking about with the 50Vdc (~ 48v). I think that isolation is required there, though, so they will be closer to an off-line design, depending on regulations, etc.
In fact, due to regulations, there is no longer any such thing as a simple off-line supply, with just a fuse, 60 Hz transformer, some rectifiers and a nice big cap. Beside the need for isolation, flame-proof and certified components, a converter of any real power (more than a dozen or so watts) must now have power factor correction. But all this is good, because those huge 60Hz steel magnetics had to go!
It is easy to change high voltage AC into low voltage DC with relatively high efficiency (70-80%). It is VERY hard to change the voltage of DC with high efficiecy, (like 30%). So you end up wasting lots of power that way.
You have got that backwards. It's hard and expensive to change 120 down to low voltage DC with any decent efficiency, whereas efficient (>90%) DC-to-DC is cheap and straightforward. Transformers are expensive, as are high-voltage rated components.
Music is a well understood and documented discipline as well. It is grounded deeply within mathematics. I'm certain we could get any sufficiently indifferent music theorist to dissect an arbitrary piece of music into a simple repetitive set of unoriginal blah.
And yet, music can be art. Timbre, duration, pitch, dynamics and other *implementation* considerations are substantial factors in determining the style and quality of the music. The composer (designer,architect) also will not be denied his title of "artist."
And so, in coding as well. We can write a particular function one hundred different ways. But, when we balance the architecture with the many implementation level issues, I propose that we have the potential to create art.
How does the gifted musician know that a particular note or combination of discrete notes of particular length, volume, and timbre, bounded by other related notes or combinations will generate an emotional response?
How then does the gifted coder know how to balance the myriad language, schedule, readability, complexity and other variables in order to create a result that not only works but creates an emotional response as well?
Implementations need not have an audience to be designated "art." The classic example of the mentally ill poet who labors in solitude is probably too extreme, but it serves the point. These too are artists.
Coders do not have an large audience for their works, by necessity (see Fred Brooks).
Hopefully, we have all seen code that moved and inspired us. Perhaps we even wrote that very code. I don't have any other word for it, save "art."
Sounds like an 88-89 ST165 Toyota Celica All-Trac to me. Separate electric water pump and radiator for the IC, which was mounted in the ideal position on top of the engine between the turbo outlet on the exhaust side and the throttle bodyon the intake side (like WRX's air-to-air placement these days).Mine never had this problem, but one of my friend's cars did and his solution was the same.:) In fact, a previous owner of my buddy's car had put ENGINE OIL in the intercooler instead of coolant. Whatta mess to clean up that was.... That probably contributed to the sticking intercooler float. When the ECU senses that the IC fluid is low, it retards the timing to ward off detonation since the intake air is presumably hotter than "normal."
Great car, simple engine management that is clearly outlined in the service manual available from Toyota.... You need to have this book to maintain the car, but at least it is available. BTW, this was a ~US$26k car in 1988, AWD, turbo 2.0 DOHC 16v with water-to-air intercooler (190HP). Most were loaded with leather and sunroof, A/C, cruise, etc, in an attempt to justify the insanely high price tag (more than a turbo Supra that year!)
This book was a great light read, the math is not difficult and some of the classic paintings and such were really cool to see.
The most interesting part of the book for me was the correlation between Fibonacci and the Golden ratio. As I read it, as you ascend the Fibonacci sequence the ratio between the current number and the one before it converges on the golden ratio. F20 divided by F19 is as near the golden ratio to as many decimal places as any of us have use for, probably.
An interesting "party trick" was also mentioned that I remember vividly. Take any two numbers and add them, then take the new number and the larger of the first two and add them, then take the new sum and the old sum and add, ala Fibonacci. Continue for twenty or so iterations and the 20th number divided by the 19th will be damn close to the golden ratio. This is, I think, because any such construction is a linear multiple of the base Fibonacci set (see prev. paragraph). When you divide, the common multiple falls off and you still get Phi. I thought that was pretty cool.:)
This device would be good for converting a carbed vehicle to throttle body EFI. With only two injector drivers though, it's ultimate usefullness is pretty limited. They claim you can batch fire several injectors at once (non-sequential EFI), but that is hardly 21st century technology and has all the disadvatages of carbs and TBI like crappy emissions, fuel economy, and idle quality. If your mullet-mobile's Quadrajunk needs another rebuild, then this might work for you. If your tastes reach any higher, though, you'll need one of those "expensive" EFI computers.
My first Fujitsu drive was a 1 GB and I have been hooked ever since. I have never had a problem with any of their drives, and though they are sometimes hard to find locally I always buy Fujitsu.
I did this a few weeks ago in a fit of boredom at work after reading about it in some article here @/.
Since blue LED's have a voltage drop of nearly double red LEDs (~3.5v vs. ~1.9v), I wondered if it would be a problem. I replaced both reds in my wired Intellimouse Optical USB with blue 470 nm Nichias and the sensor appeared not to mind the shift of 200nm; it works fine. Nor did it appear to mind the ~33% drop in LED current, but as these are high-output blues, it's possible they are more efficient than the reds it replaced and are generating similar optical power. Or, the sensor isn't really picky.
My mouse has a red translucent base so I changed out the LED that illuminates that as well, hoping for a nice purple maybe, but the plastic's response is too sharp. No blue gets through at all. Maybe if I use more current....:)
This is a bit backwards. Nichia white LEDs are, in fact, Nichia blue die that are coated with a phosphor that emits white light when excited at ~470 nm (blue). Phospor was Nichia's main business until they "stumbled" into the high-intensity blue LED business.
There were blue LEDs before Nichia, but they could hardly have been called high-intensity. Nichia blue (and green) LEDs are truly remarkable, they are among the brightest and most efficient LEDs available, in ANY color (save IR). Or rather, they *were* for a long time; there is a lot more competition now, especially from those trying to circumvent the GaN patents with their own processes.
Slashdot Mirror
This sounds expensive, time consuming, and ultimately both pointless and rewarding. I love it.
And did you enjoy working with Mary Steenburgen?
Phones are still an order of magnitude too slow (at least) for their UI. My latest phone is the quickest yet but still nowhere near as responsive as it should be. We aren't even close yet. I would add that it may be business model, as UI lag is the #1 cause of high-speed smartphone-concrete interaction, thus leading to new phone purchases.
spring to mind immediately...
How do you shoot down something that is already nosediving?
The iterative approach is pretty common: buy as much as you can afford and then buy more when you can justify it. In general you'll want as much bandwidth and as many channels as budget allows. You might also try renting first if you are looking at serious kit.
I lost my phone in a bar in Wisconsin and found it three months later in my bedroom in Vermont. I wish it had GPS, it could have told me where it had been.
You sure? I thought they were GaN and AlInGaP (green & amber/red) for the purposes of efficiency.
The summary says that 54% of filesharers are children, when the linked article says that in fact 54% of children are filesharers, which is actually much more interesting.
I liked the series where Death, Fate, Time, etc. are personified. I am slapping myself because I can't remember the name of the series, but the first book was about Death, Time was #2 I think, and the last two (6&7) were Satan and God.
These and Xanth are especially good because they don't aspire to literature, which I think is better appreciated a few years later. Better off saving Heinlein, Card (Orwell, Huxley) until there is a bit of personal context.
What spoiler? The last new episode (forgetting Razor) was broadcast over a year ago! It can hardly be considered a spoiler if the information has been in the public domain for 12 months. Honestly, keep up.
Combining the status and location bars is a great idea. Having read the article on a PDA, I only wish M$ had been as clever with Pocket IE... Could use the extra screen real estate.
I was speaking more to the need for components that are rated to withstand the high voltage from the AC line. Transistors, caps, etc. on the primary side of the required isolation transformer (which is the main shock prevention mechanism) all need to be rated for the 180 or so volts coming from the line (~400v in Europe).
Even at 50v, you still need parts rated for that kind of voltage.
When you are converting 5 or 12 to some other nearby voltage, like 3.3 or 1.2, it's a lot more straightforward. No isolation, cheaper components, etc.
Telecom is kind of what you are talking about with the 50Vdc (~ 48v). I think that isolation is required there, though, so they will be closer to an off-line design, depending on regulations, etc.
In fact, due to regulations, there is no longer any such thing as a simple off-line supply, with just a fuse, 60 Hz transformer, some rectifiers and a nice big cap. Beside the need for isolation, flame-proof and certified components, a converter of any real power (more than a dozen or so watts) must now have power factor correction. But all this is good, because those huge 60Hz steel magnetics had to go!
It is easy to change high voltage AC into low voltage DC with relatively high efficiency (70-80%). It is VERY hard to change the voltage of DC with high efficiecy, (like 30%). So you end up wasting lots of power that way.
You have got that backwards. It's hard and expensive to change 120 down to low voltage DC with any decent efficiency, whereas efficient (>90%) DC-to-DC is cheap and straightforward. Transformers are expensive, as are high-voltage rated components.
Err... One thousandth of a nanosecond would surely be a picosecond. A femtosecond should be a thousandth of that. Or so I've been told.
Music is a well understood and documented discipline as well. It is grounded deeply within mathematics. I'm certain we could get any sufficiently indifferent music theorist to dissect an arbitrary piece of music into a simple repetitive set of unoriginal blah.
And yet, music can be art. Timbre, duration, pitch, dynamics and other *implementation* considerations are substantial factors in determining the style and quality of the music. The composer (designer,architect) also will not be denied his title of "artist."
And so, in coding as well. We can write a particular function one hundred different ways. But, when we balance the architecture with the many implementation level issues, I propose that we have the potential to create art.
How does the gifted musician know that a particular note or combination of discrete notes of particular length, volume, and timbre, bounded by other related notes or combinations will generate an emotional response?
How then does the gifted coder know how to balance the myriad language, schedule, readability, complexity and other variables in order to create a result that not only works but creates an emotional response as well?
Implementations need not have an audience to be designated "art." The classic example of the mentally ill poet who labors in solitude is probably too extreme, but it serves the point. These too are artists.
Coders do not have an large audience for their works, by necessity (see Fred Brooks).
Hopefully, we have all seen code that moved and inspired us. Perhaps we even wrote that very code. I don't have any other word for it, save "art."
Sounds like an 88-89 ST165 Toyota Celica All-Trac to me. Separate electric water pump and radiator for the IC, which was mounted in the ideal position on top of the engine between the turbo outlet on the exhaust side and the throttle bodyon the intake side (like WRX's air-to-air placement these days).Mine never had this problem, but one of my friend's cars did and his solution was the same. :) In fact, a previous owner of my buddy's car had put ENGINE OIL in the intercooler instead of coolant. Whatta mess to clean up that was.... That probably contributed to the sticking intercooler float. When the ECU senses that the IC fluid is low, it retards the timing to ward off detonation since the intake air is presumably hotter than "normal."
Great car, simple engine management that is clearly outlined in the service manual available from Toyota.... You need to have this book to maintain the car, but at least it is available. BTW, this was a ~US$26k car in 1988, AWD, turbo 2.0 DOHC 16v with water-to-air intercooler (190HP). Most were loaded with leather and sunroof, A/C, cruise, etc, in an attempt to justify the insanely high price tag (more than a turbo Supra that year!)
This book was a great light read, the math is not difficult and some of the classic paintings and such were really cool to see.
:)
The most interesting part of the book for me was the correlation between Fibonacci and the Golden ratio. As I read it, as you ascend the Fibonacci sequence the ratio between the current number and the one before it converges on the golden ratio. F20 divided by F19 is as near the golden ratio to as many decimal places as any of us have use for, probably.
An interesting "party trick" was also mentioned that I remember vividly. Take any two numbers and add them, then take the new number and the larger of the first two and add them, then take the new sum and the old sum and add, ala Fibonacci. Continue for twenty or so iterations and the 20th number divided by the 19th will be damn close to the golden ratio. This is, I think, because any such construction is a linear multiple of the base Fibonacci set (see prev. paragraph). When you divide, the common multiple falls off and you still get Phi. I thought that was pretty cool.
This device would be good for converting a carbed vehicle to throttle body EFI. With only two injector drivers though, it's ultimate usefullness is pretty limited. They claim you can batch fire several injectors at once (non-sequential EFI), but that is hardly 21st century technology and has all the disadvatages of carbs and TBI like crappy emissions, fuel economy, and idle quality. If your mullet-mobile's Quadrajunk needs another rebuild, then this might work for you. If your tastes reach any higher, though, you'll need one of those "expensive" EFI computers.
.sig
No animals were harmed in the making of this
that the best time to install new memory is in between clock cycles.
I lost 40 lbs just by going from one pack a day to two! Try it, it works!
Where do you get all that energy?
Please forgive me, this is the first time I've ever been trolled. It's kinda neat....
My first Fujitsu drive was a 1 GB and I have been hooked ever since. I have never had a problem with any of their drives, and though they are sometimes hard to find locally I always buy Fujitsu.
I was astonished to see this headline.
I did this a few weeks ago in a fit of boredom at work after reading about it in some article here @ /.
:)
Since blue LED's have a voltage drop of nearly double red LEDs (~3.5v vs. ~1.9v), I wondered if it would be a problem. I replaced both reds in my wired Intellimouse Optical USB with blue 470 nm Nichias and the sensor appeared not to mind the shift of 200nm; it works fine. Nor did it appear to mind the ~33% drop in LED current, but as these are high-output blues, it's possible they are more efficient than the reds it replaced and are generating similar optical power. Or, the sensor isn't really picky.
My mouse has a red translucent base so I changed out the LED that illuminates that as well, hoping for a nice purple maybe, but the plastic's response is too sharp. No blue gets through at all. Maybe if I use more current....
This is a bit backwards. Nichia white LEDs are, in fact, Nichia blue die that are coated with a phosphor that emits white light when excited at ~470 nm (blue). Phospor was Nichia's main business until they "stumbled" into the high-intensity blue LED business.
There were blue LEDs before Nichia, but they could hardly have been called high-intensity. Nichia blue (and green) LEDs are truly remarkable, they are among the brightest and most efficient LEDs available, in ANY color (save IR). Or rather, they *were* for a long time; there is a lot more competition now, especially from those trying to circumvent the GaN patents with their own processes.