I believe you are wrong on both of your statements. Lets start with the transmission being necessary for hybrids. All current hybrid cars on the market have transmissions. Many have really cool CVTs, while others have stick shifts. If you don't believe me, check out Honda's web site. (it is true that a certain bus featured on slashdot used electric motors with no transmissions attached, but I doubt that this system would work well on standard cars/SUVs)
I admit to not knowing a lot about electric motors (other than the basic concept of how they work). However, I am positive that what you say about them not having an 'optimal' RPM is wrong. I can prove this to you simply by taking a look at some extremes:
If you apply very little juice to an electric motor, it will not spin, not having enough power to overcome friction. So clearly, electric motors are not efficient at the extreme low end (since you get no output power for an input power).
At the other extreme, if you keep adding more juice, at some point the electric motor will not produce as much power per additional amount added. If, for no other reason, friction affects will increase with speed. Granted, this might happen past the motors rated capacity, but stick with me here...
If you believe what I said above, that there is some positive power input where you get no power output, and there is some positive power input where adding additional power will not produce the same change in power output, it is obvious that if you graphed the efficiency of electric motors, it will have to have a maximum (because we have a point where you have 0% efficiency, and a point where efficiency is decreasing, and since you have motors that work, we know that in between we have to have positive numbers). Now, electric motors might have a flatter maximum, where they run at nearly peak efficiency over a wide range, but that doesn't mean that they don't have an 'optimal' RPM.
But reading some of the reviews, they report memory speeds for the 939 FX processors as being slower than those on the 940 FX processors. Given that unbuffered DDR has lower latancies, this clearly shouldn't be the case. These sites must not have adjusted this setting on the new socket 939 boards.
Most slashdot readers probably already have atleast an original Playstation (and if not, used ones can be had for around $20 to $30 or the computer version of DDR can be used). Throw in the cost of a good dance pad (~$50) and the game (another $20 to $30), and your workout system only costs you ~$100, including the cost for a Playstation.
I suggest a dance pad like the one above, because the form insert really helps cut down on the strain on your joints (a must if you are going to be DDRing often as a workout)
Gee... that freecache link would be a lot more useful, if it wasn't for the fact that none of the images are actually from freecache. A quote from the freecache site:
Please note that you cannot submit a whole site to FreeCache as in http://freecache.org/http://www.rocklobsters.com / This will not work as only index.html will be cached. You have to prefix every item that you want to have cached seperately.
From the article:
AMD provides development boards, which are intended to serve as "complete hardware and software" reference designs for embedded applications, for all of its Geode embedded processors.
Could someone who has worked in the area of embedded processors explain a little more about what a development board provides? Thanks
Given the size that they are going for, it is very likely that only one of the CPU's will have memory slots. Also, if you look at the pictures for the article, it appears that this is the case, with DIMM slots only near one CPU.
Perhaps you are used to poor quality, heavy laptops.
From IBM's ThinkPad Page you can see the weights of each of their series of laptops. The T Series (IBM's thin and light full featured laptop) weighs in at 4.5 lbs. Their R Series is 5.6 lbs, and their desktop replacement G Series is only 7.7 lbs. So, I think that 6.5 lbs (44% heavier than the T Series) does not count as light. And yes, these IBM weights are with battery.
Is it just me, or does the FragBook TL (Thin and Light) not really live up to its name...
well, it might be thin, but weighing in at 6.5 pounds, it is definately not light.
Slashdot Mirror
But given how often Windows freezes up, the location of the Caps Lock key makes checking easy.
I was, but I will take Insightful, either way gets my comment read.
Yeah, they might not be playing fair in the spyware finding business, but at least they are still honest with the news reporting.
I believe you are wrong on both of your statements. Lets start with the transmission being necessary for hybrids. All current hybrid cars on the market have transmissions. Many have really cool CVTs, while others have stick shifts. If you don't believe me, check out Honda's web site. (it is true that a certain bus featured on slashdot used electric motors with no transmissions attached, but I doubt that this system would work well on standard cars/SUVs)
I admit to not knowing a lot about electric motors (other than the basic concept of how they work). However, I am positive that what you say about them not having an 'optimal' RPM is wrong. I can prove this to you simply by taking a look at some extremes:
If you apply very little juice to an electric motor, it will not spin, not having enough power to overcome friction. So clearly, electric motors are not efficient at the extreme low end (since you get no output power for an input power).
At the other extreme, if you keep adding more juice, at some point the electric motor will not produce as much power per additional amount added. If, for no other reason, friction affects will increase with speed. Granted, this might happen past the motors rated capacity, but stick with me here...
If you believe what I said above, that there is some positive power input where you get no power output, and there is some positive power input where adding additional power will not produce the same change in power output, it is obvious that if you graphed the efficiency of electric motors, it will have to have a maximum (because we have a point where you have 0% efficiency, and a point where efficiency is decreasing, and since you have motors that work, we know that in between we have to have positive numbers). Now, electric motors might have a flatter maximum, where they run at nearly peak efficiency over a wide range, but that doesn't mean that they don't have an 'optimal' RPM.
But reading some of the reviews, they report memory speeds for the 939 FX processors as being slower than those on the 940 FX processors. Given that unbuffered DDR has lower latancies, this clearly shouldn't be the case. These sites must not have adjusted this setting on the new socket 939 boards.
Most slashdot readers probably already have atleast an original Playstation (and if not, used ones can be had for around $20 to $30 or the computer version of DDR can be used). Throw in the cost of a good dance pad (~$50) and the game (another $20 to $30), and your workout system only costs you ~$100, including the cost for a Playstation.
I suggest a dance pad like the one above, because the form insert really helps cut down on the strain on your joints (a must if you are going to be DDRing often as a workout)
Gee... that freecache link would be a lot more useful, if it wasn't for the fact that none of the images are actually from freecache. A quote from the freecache site:
m /
Please note that you cannot submit a whole site to FreeCache as in
http://freecache.org/http://www.rocklobsters.co
This will not work as only index.html will be cached. You have to prefix every item that you want to have cached seperately.
From the article:
AMD provides development boards, which are intended to serve as "complete hardware and software" reference designs for embedded applications, for all of its Geode embedded processors.
Could someone who has worked in the area of embedded processors explain a little more about what a development board provides?
Thanks
Given the size that they are going for, it is very likely that only one of the CPU's will have memory slots. Also, if you look at the pictures for the article, it appears that this is the case, with DIMM slots only near one CPU.
Looking at the picture of the motherboard, it appears that you have memory attached to just one CPU.
Perhaps you are used to poor quality, heavy laptops.
From IBM's ThinkPad Page you can see the weights of each of their series of laptops. The T Series (IBM's thin and light full featured laptop) weighs in at 4.5 lbs. Their R Series is 5.6 lbs, and their desktop replacement G Series is only 7.7 lbs. So, I think that 6.5 lbs (44% heavier than the T Series) does not count as light. And yes, these IBM weights are with battery.
Is it just me, or does the FragBook TL (Thin and Light) not really live up to its name...
well, it might be thin, but weighing in at 6.5 pounds, it is definately not light.