toddybody
Apr 15, 10:56 AM
No, they're wrong. Sorry to ruin it for you.:rolleyes:
Ha ha! I love when people rationalize all their views through scientific/observable fact...and then use the same subjectivity and bias (they ridicule) to judge opinions they disagree with. Sorry friend, you can no more prove that scripture invalid than MacVault can prove it valid. :rolleyes:
Ha ha! I love when people rationalize all their views through scientific/observable fact...and then use the same subjectivity and bias (they ridicule) to judge opinions they disagree with. Sorry friend, you can no more prove that scripture invalid than MacVault can prove it valid. :rolleyes:
benixau
Oct 10, 12:07 PM
maybe, anyway I tell my buddies that a mac works. It is great to have all that speed but here is a thought:
I have a PC that is really 5x as fast as a mac
I spend 5x as long setting it up as i do the mac
I am also 5x less productive on it then a mac as it keeps breaking
I may not be a great mathematician but 5x5 = 25. 25x less usable than a mac. Personal experience proves this.
Long Live King Mac!! Long Live King Mac!!
For the dark side to wonder at how easy I get my life done
I have a PC that is really 5x as fast as a mac
I spend 5x as long setting it up as i do the mac
I am also 5x less productive on it then a mac as it keeps breaking
I may not be a great mathematician but 5x5 = 25. 25x less usable than a mac. Personal experience proves this.
Long Live King Mac!! Long Live King Mac!!
For the dark side to wonder at how easy I get my life done
ddtlm
Oct 12, 03:30 PM
Wow I missed a lot by spending all of Friday away from this board. I am way behind in posts here, and I'm sure I'll miss a lot of things worth comment. But anyway, the code fragment:
int x1,x2,x3;
for (x1=1; x1<=20000; x1++) {
for(x2=1; x2<=20000; x2++) {
x3 = x1*x2;
}
}
Is a very poor benchmark. Compilers may be able to really dig into that and make the resulting executable perform the calculate radically different. In fact, I can tell you the answer outright: x1=20000, x2=20000, x3 = 400000000. It took me 2 seconds or so. Does this mean that I am a better computer than a G4 and a P4? No, it means I realized that the loop can be reduced to simple data assignments. I have a better compiler, thats it.
Anyway, lets pretend that for whatever reason compilers did not simplify that loop AT ALL. Note that this would be a stupid stupid compiler. At each stage, x1 is something, we ++x2, and we set x3 = x1 * x2. Now notice that we cannot set x3 until the result of X2++ is known. On a pipelined processor that cannot execute instructions out of order, this means that I have a big "bubble" in the pipeline as I wait for the new x2 before I can multiply. However, after the x3 is started into the pipe, the next instruction is just another x2++ which does not depend on x3, so I can do it immediately. On a 7-stage in-order chip like a G4, this means that I fill two stages of the pipe and then have to wait for the results on the other end before I can continue. You see that this is very inefficient (28% or so). However, the G3 is a 4-stage design and so 2/4 of the stages can stay busy, resulting in a 50% efficientcy (so a 700mhz G3 is "the same as" a 350mhz G3 at 100% and a 800mhz G4 is "the same as" a 210mhz G4 at 100%). These are of course simplified cases, the actual result may very a bit for some obscure reason.
Actually the above stuff is inaccurate. The G3 sports 2 integer units AFAIK, so it can do x3 = x1*x2 at the same time as it is doing x2++ (for the next loop of course, not this one). This means that both pipes start one bit of work, then wait for it to get out the other end, then do one bit of work again. So this is 25% efficientcy. A hypothetical single-pipe G3 would do x3 = x1*x3 and then do x2++, however it could not do x3 = x1 * x2 again until the x2++ was out the other end, which takes 4 cycles and started one after the previos x3 = x1*x2, which should mean 3 "bubble" stages and an efficientcy of 20%.
Actually, it may be worse than that. Remember that this is in a loop. The loop means a compare instruction (are we done yet?) followed by a jump depending on the results of the compare. We therefore have 4 instructions in PPC I think per loop, and we can't compare x2 to 20000 until x2++ has gone through all the pipe stages. (Oh no!) And we can't jump until we know r]the result of the compare (oh no!). Seeing the pattern? Wanna guess what the efficientcy is for a really stupid compiled version of this "benchmark"? A: really freaking low.
I'll see about adding more thoughts later.
int x1,x2,x3;
for (x1=1; x1<=20000; x1++) {
for(x2=1; x2<=20000; x2++) {
x3 = x1*x2;
}
}
Is a very poor benchmark. Compilers may be able to really dig into that and make the resulting executable perform the calculate radically different. In fact, I can tell you the answer outright: x1=20000, x2=20000, x3 = 400000000. It took me 2 seconds or so. Does this mean that I am a better computer than a G4 and a P4? No, it means I realized that the loop can be reduced to simple data assignments. I have a better compiler, thats it.
Anyway, lets pretend that for whatever reason compilers did not simplify that loop AT ALL. Note that this would be a stupid stupid compiler. At each stage, x1 is something, we ++x2, and we set x3 = x1 * x2. Now notice that we cannot set x3 until the result of X2++ is known. On a pipelined processor that cannot execute instructions out of order, this means that I have a big "bubble" in the pipeline as I wait for the new x2 before I can multiply. However, after the x3 is started into the pipe, the next instruction is just another x2++ which does not depend on x3, so I can do it immediately. On a 7-stage in-order chip like a G4, this means that I fill two stages of the pipe and then have to wait for the results on the other end before I can continue. You see that this is very inefficient (28% or so). However, the G3 is a 4-stage design and so 2/4 of the stages can stay busy, resulting in a 50% efficientcy (so a 700mhz G3 is "the same as" a 350mhz G3 at 100% and a 800mhz G4 is "the same as" a 210mhz G4 at 100%). These are of course simplified cases, the actual result may very a bit for some obscure reason.
Actually the above stuff is inaccurate. The G3 sports 2 integer units AFAIK, so it can do x3 = x1*x2 at the same time as it is doing x2++ (for the next loop of course, not this one). This means that both pipes start one bit of work, then wait for it to get out the other end, then do one bit of work again. So this is 25% efficientcy. A hypothetical single-pipe G3 would do x3 = x1*x3 and then do x2++, however it could not do x3 = x1 * x2 again until the x2++ was out the other end, which takes 4 cycles and started one after the previos x3 = x1*x2, which should mean 3 "bubble" stages and an efficientcy of 20%.
Actually, it may be worse than that. Remember that this is in a loop. The loop means a compare instruction (are we done yet?) followed by a jump depending on the results of the compare. We therefore have 4 instructions in PPC I think per loop, and we can't compare x2 to 20000 until x2++ has gone through all the pipe stages. (Oh no!) And we can't jump until we know r]the result of the compare (oh no!). Seeing the pattern? Wanna guess what the efficientcy is for a really stupid compiled version of this "benchmark"? A: really freaking low.
I'll see about adding more thoughts later.
dethmaShine
Apr 21, 03:23 PM
Just out of curiosity, why do you suppose that is? The *NIX family? Or something else? I'd like to hear your perspective.
If you don't mind, I would like to explain that.
I cannot vouch for all the people. I can vouch for most that I have seen.
I am a part of TI, SerDes which is designed in TI, UK [UK Design]. I have been to TI's headquarters [Dallas, Texas], a number of items, and everytime I go, I have seen people using iPhones and blackberries. TI still gives BB's to all the employees, but most have their personal iPhones. It was really hard to spot a guy using an android phone out of close to a thousand people I could spot on campus.
We run most of our software on SunOS 2.6 [Solaris]. We do some of our development work on Windows [which is a PAIN in the OS for no native support for PERL, Python, ClearCase, etc].
The reason I believe that's the case is because:
1. The most important: people have a life. They don't wish to tinker with the phones; whether its easy or hard, they just have no time. We buy smartphones to work for us and do everything on their own. We don't want to work for our 'smartphone' to make it usable. People just don't have time.
2. The quality of service Apple provides is hands down. The best customer service for any product that is theirs. It's great.
3. iPhone is probably the most usable phone at this time. Android is just on the other side. Widgets/Customization that's about it. Low quality apps/ No apps is the case there.
People want something that just works without much effort. These things are to simplify our lives and not complicate, so that we can concentrate on actual work.
Some people get this; some don't.
If you don't mind, I would like to explain that.
I cannot vouch for all the people. I can vouch for most that I have seen.
I am a part of TI, SerDes which is designed in TI, UK [UK Design]. I have been to TI's headquarters [Dallas, Texas], a number of items, and everytime I go, I have seen people using iPhones and blackberries. TI still gives BB's to all the employees, but most have their personal iPhones. It was really hard to spot a guy using an android phone out of close to a thousand people I could spot on campus.
We run most of our software on SunOS 2.6 [Solaris]. We do some of our development work on Windows [which is a PAIN in the OS for no native support for PERL, Python, ClearCase, etc].
The reason I believe that's the case is because:
1. The most important: people have a life. They don't wish to tinker with the phones; whether its easy or hard, they just have no time. We buy smartphones to work for us and do everything on their own. We don't want to work for our 'smartphone' to make it usable. People just don't have time.
2. The quality of service Apple provides is hands down. The best customer service for any product that is theirs. It's great.
3. iPhone is probably the most usable phone at this time. Android is just on the other side. Widgets/Customization that's about it. Low quality apps/ No apps is the case there.
People want something that just works without much effort. These things are to simplify our lives and not complicate, so that we can concentrate on actual work.
Some people get this; some don't.
DavidLeblond
Mar 18, 03:56 PM
The DRM has nothing to do with ITMS's business model.
The main purpose of iTMS is to sell iPods. iPods are the only players at this time that can play iTMS purchased music, due to the DRM. Tell me how the DRM has nothing to do with iTMS's business model.
The main purpose of iTMS is to sell iPods. iPods are the only players at this time that can play iTMS purchased music, due to the DRM. Tell me how the DRM has nothing to do with iTMS's business model.
Silentwave
Jul 11, 11:30 PM
One thing i was just thinking... with some laptop vendors considering Conroe due to it being pretty damn efficient, how about this one:
MacBook - Merom - optimized for LONG battery life
MacBook Pro - Conroe - optimized to be a true mobile professional workstation
unlikely. MBPs already have heating issues, and Yonah core duo standard voltage is designed with a TDP of up to 31W. Merom has up to 35W.
Conroe and Allendale both are TDP 65W throughout the range except teh Conroe extremes which are TDP of 80W. No info yet on the Low Votlage or Ultra Low Voltage Meroms, but if any high end processor beyond merom were to get into the MBPs, which i doubt due to the need for a different socket, i'd actually call it as Woodcrest!
The dual core Xeon 5148 Low Voltage, clocking at 2.33GHz with 4MB L2 cache and 1333MT/S FSB has a TDP of 40W- only 5W higher than the Meroms.
MacBook - Merom - optimized for LONG battery life
MacBook Pro - Conroe - optimized to be a true mobile professional workstation
unlikely. MBPs already have heating issues, and Yonah core duo standard voltage is designed with a TDP of up to 31W. Merom has up to 35W.
Conroe and Allendale both are TDP 65W throughout the range except teh Conroe extremes which are TDP of 80W. No info yet on the Low Votlage or Ultra Low Voltage Meroms, but if any high end processor beyond merom were to get into the MBPs, which i doubt due to the need for a different socket, i'd actually call it as Woodcrest!
The dual core Xeon 5148 Low Voltage, clocking at 2.33GHz with 4MB L2 cache and 1333MT/S FSB has a TDP of 40W- only 5W higher than the Meroms.
tigress666
May 6, 10:19 AM
I've had AT&T/Cingular since 2002/3. I've barely ever had an issue. When I did, it was one month where they did seem to run ******. Then that went away and I've not had an issue again *shrug* (Ok, once at a county fair where probably all the people conglamerated together in an area that usually isn't that populous probably overloaded the towers there. Actually, it turned out it was my iphone had crashed and needed to restart which has happened to me occasionally). I've used my phone in Washington, Georgia, Connecticut, Long Island, and New Jersey.
The only carrier I avoid like the plague is Sprint. And to be fair, maybe they've improved by now (to have still survived I would think so). And it wasn't dropped calls. It was so reliabley bad connection calls I could never understand anyone calling on Sprint. And everyone I knew with Sprint had the same complaints.
MY parents had Sprint and I finally asked them to call me on their landline cause I never could understand the call (and htis was the time Sprint was advertising that you would misunderstand people on other networks. My experience their parody of other networks fit them to a T).
My only thing with Verizon (once again they may have changed by now) is they were significantly more expensive than Cingular or T-Mobile (and Cingular had better coverage than T-Mobile which is why I went with them). Like by 20 dollars a month when I was shopping for plans (this was just regular voice plans). I've been happy enough with Cingular I've never really felt the need to change *shrug*. I probably would not have gotten the iphone if it wasn't on AT&T (cause I was just browsing phones AT&T had). And now I love the iphone so much AT&T would have to suddenly get really bad or another carrier would have to get really good (or a really enticing phone) to make me want to leave.
The only carrier I avoid like the plague is Sprint. And to be fair, maybe they've improved by now (to have still survived I would think so). And it wasn't dropped calls. It was so reliabley bad connection calls I could never understand anyone calling on Sprint. And everyone I knew with Sprint had the same complaints.
MY parents had Sprint and I finally asked them to call me on their landline cause I never could understand the call (and htis was the time Sprint was advertising that you would misunderstand people on other networks. My experience their parody of other networks fit them to a T).
My only thing with Verizon (once again they may have changed by now) is they were significantly more expensive than Cingular or T-Mobile (and Cingular had better coverage than T-Mobile which is why I went with them). Like by 20 dollars a month when I was shopping for plans (this was just regular voice plans). I've been happy enough with Cingular I've never really felt the need to change *shrug*. I probably would not have gotten the iphone if it wasn't on AT&T (cause I was just browsing phones AT&T had). And now I love the iphone so much AT&T would have to suddenly get really bad or another carrier would have to get really good (or a really enticing phone) to make me want to leave.
awmazz
Mar 12, 03:12 AM
Explosion reported at Fukushima plant.
http://www.bbc.co.uk/news/world-asia-pacific-12720219
Oh cr*p. The headline is 'huge explosion'.
I think it's clearly time to start making comparisons with Chernobyl and discussing how widespread the radiation damage is now potentially gong to be rather than praising how Japanese reactors are different to Soviet ones. That huge cloud of smoke is enough to tell anyone expert or not that this is already way beyond just getting backup cooling diesel generators operational again - we're witnessing a massive disaster genuine bona fide China Syndrome meltdown.
http://www.bbc.co.uk/news/world-asia-pacific-12720219
Oh cr*p. The headline is 'huge explosion'.
I think it's clearly time to start making comparisons with Chernobyl and discussing how widespread the radiation damage is now potentially gong to be rather than praising how Japanese reactors are different to Soviet ones. That huge cloud of smoke is enough to tell anyone expert or not that this is already way beyond just getting backup cooling diesel generators operational again - we're witnessing a massive disaster genuine bona fide China Syndrome meltdown.
Multimedia
Sep 27, 08:37 PM
Surprised to see this thread come to a grinding hault after only 145 posts. I pledge right here and now to be one of the first to buy a NEW 8-core Dual Clovertown Mac Pro as soon as it becomes available. I will not wait for them to go refrub although I will probably wait for them to come with iLife '07 if they are added to the BTO page before the January 9th SteveNote.
I turn 60 on January 12th. :) Happy Birthday to me it will be. :eek: :D
I turn 60 on January 12th. :) Happy Birthday to me it will be. :eek: :D
Multimedia
Oct 11, 04:19 PM
Got my coupon and tested it. It doesn't stack...total price is $1349.00Thanks for the update. Still as cheap as the refurbs. I think that's cheap enough for me.
the 30" is 4,096k pixels = $1349
the 24" x2 is 4,608k pixels = $1420
30" = 512k pixels smaller but one big canvas.
One card can drive a 30" + a 24" for a total of 7,400k pixels.
Going up from my current level of 4,224k or + 3,176k pixels.
Got my coupon and I'm good to go with my balance available on Friday to get this deal for $1460 including tax.
Thanks for the coupon tip rxse7en. I got one that lasts thru Monday. Going to buy it. I know it may still get cheaper, but it's cheap enough now to go for it - esp cause I have credit with Dell.
the 30" is 4,096k pixels = $1349
the 24" x2 is 4,608k pixels = $1420
30" = 512k pixels smaller but one big canvas.
One card can drive a 30" + a 24" for a total of 7,400k pixels.
Going up from my current level of 4,224k or + 3,176k pixels.
Got my coupon and I'm good to go with my balance available on Friday to get this deal for $1460 including tax.
Thanks for the coupon tip rxse7en. I got one that lasts thru Monday. Going to buy it. I know it may still get cheaper, but it's cheap enough now to go for it - esp cause I have credit with Dell.
arkitect
Mar 12, 04:46 AM
Thanks Olly, I was wondering how hydrogen could explode, not exactly flammable really is it?
Eh?
:eek:
http://upload.wikimedia.org/wikipedia/commons/8/84/Hindenburg_burning.jpg
Eh?
:eek:
http://upload.wikimedia.org/wikipedia/commons/8/84/Hindenburg_burning.jpg
Evangelion
Jul 13, 08:46 AM
So theres no need to say all that stuff- fact of the matter is you could put a faster chip in for the same price.
What makes you think that? Do you believe that it doesn't take any time or money to re-design the internals of the iMac? Apple has two choice basically:
a) replace the Core Duo in iMac and replace it with Merom
b) re-design the internals of the iMac, and replace the Core Duo with Conroe
And heat-output might come in to play here. Conroe might not be P4-hot, but it's a lot hotter than Merom is.
What makes you think that? Do you believe that it doesn't take any time or money to re-design the internals of the iMac? Apple has two choice basically:
a) replace the Core Duo in iMac and replace it with Merom
b) re-design the internals of the iMac, and replace the Core Duo with Conroe
And heat-output might come in to play here. Conroe might not be P4-hot, but it's a lot hotter than Merom is.
WestonHarvey1
Apr 15, 10:13 AM
What hateful nonsense.
Everything is hate to people like you. It makes it impossible to have any kind of conversation.
Difference of opinion != Hate
Everything is hate to people like you. It makes it impossible to have any kind of conversation.
Difference of opinion != Hate
jefhatfield
Oct 10, 11:17 AM
Originally posted by alex_ant
Macs aren't a poor buy, though... they're only a poor buy if your primary concern is maximum performance. I doubt they're any less stable than PCs. They are slower, but in my experience they are much more enjoyable computers to use. You will have to weigh your need for performance against this.
i agree with your balanced comment
it has to be better than, "macs rule all the time or pcs rule all the time"
things are just not that black and white:p
Macs aren't a poor buy, though... they're only a poor buy if your primary concern is maximum performance. I doubt they're any less stable than PCs. They are slower, but in my experience they are much more enjoyable computers to use. You will have to weigh your need for performance against this.
i agree with your balanced comment
it has to be better than, "macs rule all the time or pcs rule all the time"
things are just not that black and white:p
charliehustle
Oct 8, 12:18 PM
Actually, to a degree it is...
huh? how so?
so because a Ferrari has better quality, it will sell larger numbers than a Honda Civic that more people can afford..
I don't believe you
Yea, just like Microsoft did... whoops...
Traditionally, Microsoft aimed Windows Mobile at corporations that wanted Windows as a standard across PCs and handhelds
you're using the failure of one company as an excuse for another one..
different people, different enterprise..
Using that logic, apple should not even be making computers, due to their fall down prior to being saved by the ipod..
Microsoft is not Google..
How many microsoft apps do you use on your iphone? Do you use them more than Google products?
I bet you use Google maps, Google search.
Microsoft taking an open hardware approach has very little to do with their success. Its a side affect. A coincidence. Look at the video game market for further proof. MS doesn't take the desktop approach with the X-box - they parleyed their gaming successes on Windows to ease developers onto a closed hardware device. Nintendo has done that for years with their franchise characters. You cannot get a more closed ecosystem than Video games - and they are continuously successful. Even MS exploits closed ecosystems and they are finally making a profit (they would have earlier if they could have released a hardware system that wasn't so defective).
the point I was trying to make was more of a business plan compared to open or closed. I guess people are assuming all these phones are going to be priced the same (apple vs others), I highly doubt that..
in the business world, there are different markets and demographics, and yes, the iphone does well across the board, but you have to look at everything including price, cost of plans, and so on..
you might not see kids in grade 8 getting iphones, because their parents dont' want spend that that much money,
you can have a number of different situations.. but apple only has one product, and they're trying to market it toward everyone..
google will be positioned better to target different demographics compared to apple..
what if a user wants actual buttons to type on (yes people like that still do exist) how can apple make any money off them?
essentially, apple just lost a customer, and you can't make assumptions that all people want full touch screens..
some people might not like the look of the iphone,
google is giving people a choice of which handset they want, and this will result in them selling a higher number of phones..
Insulting people does not help your case.
It just bothers me when people have a very biased and closed minded opinions when it comes to apple..
I wasn't talking about anyone specifically, so sorry if I offended anyone..
huh? how so?
so because a Ferrari has better quality, it will sell larger numbers than a Honda Civic that more people can afford..
I don't believe you
Yea, just like Microsoft did... whoops...
Traditionally, Microsoft aimed Windows Mobile at corporations that wanted Windows as a standard across PCs and handhelds
you're using the failure of one company as an excuse for another one..
different people, different enterprise..
Using that logic, apple should not even be making computers, due to their fall down prior to being saved by the ipod..
Microsoft is not Google..
How many microsoft apps do you use on your iphone? Do you use them more than Google products?
I bet you use Google maps, Google search.
Microsoft taking an open hardware approach has very little to do with their success. Its a side affect. A coincidence. Look at the video game market for further proof. MS doesn't take the desktop approach with the X-box - they parleyed their gaming successes on Windows to ease developers onto a closed hardware device. Nintendo has done that for years with their franchise characters. You cannot get a more closed ecosystem than Video games - and they are continuously successful. Even MS exploits closed ecosystems and they are finally making a profit (they would have earlier if they could have released a hardware system that wasn't so defective).
the point I was trying to make was more of a business plan compared to open or closed. I guess people are assuming all these phones are going to be priced the same (apple vs others), I highly doubt that..
in the business world, there are different markets and demographics, and yes, the iphone does well across the board, but you have to look at everything including price, cost of plans, and so on..
you might not see kids in grade 8 getting iphones, because their parents dont' want spend that that much money,
you can have a number of different situations.. but apple only has one product, and they're trying to market it toward everyone..
google will be positioned better to target different demographics compared to apple..
what if a user wants actual buttons to type on (yes people like that still do exist) how can apple make any money off them?
essentially, apple just lost a customer, and you can't make assumptions that all people want full touch screens..
some people might not like the look of the iphone,
google is giving people a choice of which handset they want, and this will result in them selling a higher number of phones..
Insulting people does not help your case.
It just bothers me when people have a very biased and closed minded opinions when it comes to apple..
I wasn't talking about anyone specifically, so sorry if I offended anyone..
*LTD*
Apr 9, 12:51 AM
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8G4)
These people are fleeing the "yellow light of death� on PS3 or "red ring of death' on 360.
That's a complete joke, surely? There's no way you can compare console gaming, in basically a home arcade, to swiping your fingers around on a 3.5" screen. No way. I am a gamer, and always will be.
Gaming on the iPhone is good for 2-minute bursts, such as when sitting on the toilet. It's not a great games device. Most of the games are cheap with no replay value.
Oops. Looks like someone hasn't visited the App Store in like, never.
Since you're still in can you grab me a Palm Centro? I'm feelin nostalgic.
These people are fleeing the "yellow light of death� on PS3 or "red ring of death' on 360.
That's a complete joke, surely? There's no way you can compare console gaming, in basically a home arcade, to swiping your fingers around on a 3.5" screen. No way. I am a gamer, and always will be.
Gaming on the iPhone is good for 2-minute bursts, such as when sitting on the toilet. It's not a great games device. Most of the games are cheap with no replay value.
Oops. Looks like someone hasn't visited the App Store in like, never.
Since you're still in can you grab me a Palm Centro? I'm feelin nostalgic.
Peterkro
Mar 14, 12:01 PM
And gravity has yet to go up. :p LOL
While the idea is ridiculous Lewis Carroll (who was a mathematician amongst other things:rolleyes:) did some work on the problem and in a fictional work came up with this:
"In Chapter 7 of Lewis Carroll's 1893 book Sylvie and Bruno. The fictional German professor, Mein Herr, proposes a way to run trains by gravity alone. Dig a straight tunnel between any two points on Earth (it need not go through the Earth's center), and run a rail track through it. With frictionless tracks the energy gained by the train in the first half of the journey is equal to that required in the second half. And also, in the absence of air resistance and friction, the time of the journey is about 42 minutes (84 for a round trip) for any such tunnel, no matter what the tunnel's length."
f
While the idea is ridiculous Lewis Carroll (who was a mathematician amongst other things:rolleyes:) did some work on the problem and in a fictional work came up with this:
"In Chapter 7 of Lewis Carroll's 1893 book Sylvie and Bruno. The fictional German professor, Mein Herr, proposes a way to run trains by gravity alone. Dig a straight tunnel between any two points on Earth (it need not go through the Earth's center), and run a rail track through it. With frictionless tracks the energy gained by the train in the first half of the journey is equal to that required in the second half. And also, in the absence of air resistance and friction, the time of the journey is about 42 minutes (84 for a round trip) for any such tunnel, no matter what the tunnel's length."
f
PghLondon
Apr 28, 11:21 AM
Does this rule apply to non Apple computers and tablets?
I recall only a short time ago when non Apple companies where posting numbers, people on these forums were ripping the figures to shreds as they said they were not sold items but only shipped items.
Do we all agree the same rules for everyone :)
How are those tablets working out for those companies? I'd say it's pretty much adhering to the "rules" as set out above. If all of their products sold as "well" as their tablets did, those companies would be purged. Not a double standard.
I recall only a short time ago when non Apple companies where posting numbers, people on these forums were ripping the figures to shreds as they said they were not sold items but only shipped items.
Do we all agree the same rules for everyone :)
How are those tablets working out for those companies? I'd say it's pretty much adhering to the "rules" as set out above. If all of their products sold as "well" as their tablets did, those companies would be purged. Not a double standard.
firestarter
Mar 13, 07:27 PM
Solar plants can be put out in the scrub, they don't destroy what can be some of the most beautiful places on Earth like dams do, and have much less land impact.
We don't all have scrubland... or reliable sunshine! Can't see solar power taking off in the UK, I'm afraid. The same goes for most of Northern Europe.
We don't all have scrubland... or reliable sunshine! Can't see solar power taking off in the UK, I'm afraid. The same goes for most of Northern Europe.
grubesteak
Sep 26, 12:29 AM
What incentive does anyone ever have to buy if they keep announcing new chips? I'm all for the advancement of new technology, but I'm not forking over any money just yet.
Seems like there's a new "just around the corner" press release/rumor every other week.
Seems like there's a new "just around the corner" press release/rumor every other week.
Huntn
Mar 15, 08:20 PM
Once again my mind has been boggled on the Rachel Maddow show. Tonight she is talking about the problems at shutdown Japanese reactors, reactors that I think were shutdown before the earthquake, not problems with the reactors themselves, but problems with the HUGE POOLS of spent fuel rods, with accumulations of fuel rods in far larger amounts than what is found in an individual reactor. According to her, they need to be cooled for up to ten years before they can be put into dry storage. Having lost their cooling water they could be more dangerous than a reactor cause of the quantity of rods and they are heating up and causing explosions potentially releasing radioactive particles into the environment.
Based on what I said in post #193. Nuclear Reactors can never be truly shutdown. *Without* a continuous flow of cooling water they become dangerous and self destructive very quickly. See this link: The Bane of Nuclear Power- Waste Storage (http://library.thinkquest.org/17940/texts/nuclear_waste_storage/nuclear_waste_storage.html).
Based on what I said in post #193. Nuclear Reactors can never be truly shutdown. *Without* a continuous flow of cooling water they become dangerous and self destructive very quickly. See this link: The Bane of Nuclear Power- Waste Storage (http://library.thinkquest.org/17940/texts/nuclear_waste_storage/nuclear_waste_storage.html).
Liquorpuki
Mar 16, 12:40 PM
Third, we do in fact have the resources to provide for our own society. Expand nuclear, expand oil, expand coal, expand natural gas, expand biofuels, keep investing in promising new alternatives (private investment, not government) and we could get to energy independence in probably 10 years or less. The only reason we're not doing it is because of burdensome government regulations and the fact that other countries can produce it cheaply. As prices rise, one of those issues becomes moot... Also, for the record, just because we could do it, doesn't necessarily mean we should. The free market should determine this. IF we're willing to pay more for American fuel, then so be it. If not, we'll continue buying from others... but don't let the government manipulate the markets and destroy common sense capitalism.
Few things
1. Oil independence and refining the electricity portfolio to become cleaner are two separate issues. Other than powering OLD stations, oil does not have a direct role in our portfolio.
2. Renewable energy is not cost effective at all. If we relied on the free market to drive renewable technology, they'd refuse to do so because they'd be losing money and we'd be stuck on coal for a long time. Then when coal runs out, we'd have no alternatives in place. This is why you need the government to subsidize and legislate. It's like putting solar panels on your roof. A capitalist is not going to spend $100K out of pocket to retrofit their house with an alternative energy source that will be generating at a loss. But with government subsidizing half of it and creating a break even point or allowing a profit through technologies like net metering (which is also subsidized), he just might.
3. Despite the fact it's not intrinsically profitable, greening the portfolio is still a worthy issue because environmentalism is an ethical issue, not a business decision. Environmentalsim doesn't care about profits like capitalism does. It cares about carbon footprints and long term sustainability of our planet.
Few things
1. Oil independence and refining the electricity portfolio to become cleaner are two separate issues. Other than powering OLD stations, oil does not have a direct role in our portfolio.
2. Renewable energy is not cost effective at all. If we relied on the free market to drive renewable technology, they'd refuse to do so because they'd be losing money and we'd be stuck on coal for a long time. Then when coal runs out, we'd have no alternatives in place. This is why you need the government to subsidize and legislate. It's like putting solar panels on your roof. A capitalist is not going to spend $100K out of pocket to retrofit their house with an alternative energy source that will be generating at a loss. But with government subsidizing half of it and creating a break even point or allowing a profit through technologies like net metering (which is also subsidized), he just might.
3. Despite the fact it's not intrinsically profitable, greening the portfolio is still a worthy issue because environmentalism is an ethical issue, not a business decision. Environmentalsim doesn't care about profits like capitalism does. It cares about carbon footprints and long term sustainability of our planet.
rovex
Mar 12, 08:20 AM
Er,China leads the world in Nuclear generation design (not that I'm saying this is a good thing).
Let's put things into perspective...
60% of china's electricity is generated through the burning of coal - a heavy pollutant, which is not a renewable source. Thus not viable.
china has 9 nuclear power plants which account for 2% of chinas energy, whilst France has 59 plants accounting for 80% of the country's energy. And Nuclear power IS a viable form of energy in contrast to coal. And fundamentally better for the environment (although not totally unharmful).
Let's put things into perspective...
60% of china's electricity is generated through the burning of coal - a heavy pollutant, which is not a renewable source. Thus not viable.
china has 9 nuclear power plants which account for 2% of chinas energy, whilst France has 59 plants accounting for 80% of the country's energy. And Nuclear power IS a viable form of energy in contrast to coal. And fundamentally better for the environment (although not totally unharmful).
Multimedia
Jul 12, 11:33 AM
have to agree with Manik and generik,
Doesn't make business sense to hold out the Macbook with just Yonah when all the other companies will be filling their 13.3/14 laptops with 64bit Meroms as soon as possible. Apple has to compete with the other companies now, and if it doesn't fill Macbook with Merom, it doesnt have a small laptop with latest specs - while its competitors will.
Unless they introduce a smaller Macbook Pro which no one is suggesting. Makes business sense to throw the same price Merom into the Macbook.
Could someone please explain, other than this 'we must make some distinction' between MB and MBP (which already exists) why apple wouldn't put in Meroms into the Macbook asap?I wholeheartedly agree. It's just a question of how soon Apple will pull the trigger on the switch to Merom in mini and MacBook not if they will. I'm not sure Apple thinks they are competing with PC specs yet. But what's the upside to sticking with Yonah in anything until next year? I don't get it. Aren't we better off in the long run retiring Yonah ASAP?
Is it:
1. Low Supply of Meroms until next year?
2. Lower Cost of Yonahs until next year?
Am I out of line for not believing either of the above? I can't understand Apple not wanting to lose Yonah as soon as they can. I don't see anyone buying a different model because one is Yonah and another is Merom. MacBooks are way too different from MacBook Pros in many other ways than their processor's speed and 32/64 bitness. :confused:
I'm confused for now. Maybe we're being too pessimistic about Apple's willingness to drop Yonah ASAP. :confused:
Doesn't make business sense to hold out the Macbook with just Yonah when all the other companies will be filling their 13.3/14 laptops with 64bit Meroms as soon as possible. Apple has to compete with the other companies now, and if it doesn't fill Macbook with Merom, it doesnt have a small laptop with latest specs - while its competitors will.
Unless they introduce a smaller Macbook Pro which no one is suggesting. Makes business sense to throw the same price Merom into the Macbook.
Could someone please explain, other than this 'we must make some distinction' between MB and MBP (which already exists) why apple wouldn't put in Meroms into the Macbook asap?I wholeheartedly agree. It's just a question of how soon Apple will pull the trigger on the switch to Merom in mini and MacBook not if they will. I'm not sure Apple thinks they are competing with PC specs yet. But what's the upside to sticking with Yonah in anything until next year? I don't get it. Aren't we better off in the long run retiring Yonah ASAP?
Is it:
1. Low Supply of Meroms until next year?
2. Lower Cost of Yonahs until next year?
Am I out of line for not believing either of the above? I can't understand Apple not wanting to lose Yonah as soon as they can. I don't see anyone buying a different model because one is Yonah and another is Merom. MacBooks are way too different from MacBook Pros in many other ways than their processor's speed and 32/64 bitness. :confused:
I'm confused for now. Maybe we're being too pessimistic about Apple's willingness to drop Yonah ASAP. :confused:
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