chrmjenkins
Apr 28, 11:09 AM
It might - read below.
It's not weight that damages the roads, it's pressure. Too much weight concentrated on too small a space is what damages asphalt (and concrete, to a far lesser extent). That's a function of pressure in the tires - two vehicles with the same tire pressure are doing the same amount of damage to the road, regardless of their respective weights.
True enough, a truck weighted down with a full load might have 60 psi in the tires, whereas most passenger cars are in the 30-35 psi range. But in this sense, a small car and a big car (or light truck) are doing about the same amount of damage to the road.
Here in north Texas, it's very true that the majority of damage to the roads comes not from any vehicle, but from unstable soil underneath the roads. I imagine there are many places across the country where this is true.
An 18 wheeler tractor trailer has an empty weight of 36,000 lbs, or 18 tons. Law permits up to 40 tons loaded. Let's assume a light load and say 22 tons.
That's 1.2 tons per wheel.
A prius is 1.5 tons. That's 0.375 tons per wheel.
Now we also know that tractor trailers run roughly double passenger cars on tire pressure, but the wheels are also bigger. For that reason, let's assume that the amount of surface area of each tire in contact with the road is consistent across the two. That means that the tractor trailer exerts the 3.25 times the pressure with each tire compared to the prius. On top of that, it does this on all 18 of its wheels, as compared to only 4 with the prius. Finally, the average traveling speed is going to be lower for a tractor trailer, meaning it exerts this greater pressure in the same spot longer than the prius.
Add in the fact that the damage done by pressure is likely not additive (3.25 priuses in a row does not equal the damage of one tractor trailer per tire), and it's easy to see that tractor trailers are the big wear and tear on roads.
It's not weight that damages the roads, it's pressure. Too much weight concentrated on too small a space is what damages asphalt (and concrete, to a far lesser extent). That's a function of pressure in the tires - two vehicles with the same tire pressure are doing the same amount of damage to the road, regardless of their respective weights.
True enough, a truck weighted down with a full load might have 60 psi in the tires, whereas most passenger cars are in the 30-35 psi range. But in this sense, a small car and a big car (or light truck) are doing about the same amount of damage to the road.
Here in north Texas, it's very true that the majority of damage to the roads comes not from any vehicle, but from unstable soil underneath the roads. I imagine there are many places across the country where this is true.
An 18 wheeler tractor trailer has an empty weight of 36,000 lbs, or 18 tons. Law permits up to 40 tons loaded. Let's assume a light load and say 22 tons.
That's 1.2 tons per wheel.
A prius is 1.5 tons. That's 0.375 tons per wheel.
Now we also know that tractor trailers run roughly double passenger cars on tire pressure, but the wheels are also bigger. For that reason, let's assume that the amount of surface area of each tire in contact with the road is consistent across the two. That means that the tractor trailer exerts the 3.25 times the pressure with each tire compared to the prius. On top of that, it does this on all 18 of its wheels, as compared to only 4 with the prius. Finally, the average traveling speed is going to be lower for a tractor trailer, meaning it exerts this greater pressure in the same spot longer than the prius.
Add in the fact that the damage done by pressure is likely not additive (3.25 priuses in a row does not equal the damage of one tractor trailer per tire), and it's easy to see that tractor trailers are the big wear and tear on roads.
Zen0Jin
May 6, 05:43 PM
very nice, what model do you have?
Top 27" retail config
Top 27" retail config
dicklacara
Mar 24, 11:00 AM
Are you people seriously applauding this? What a waste of our tax dollars!! I do contracts with the Navy every single day and I know that the technology that they have will not be benefited by the use of iPad/iPod/iPhone. The military does not offer wi-fi to their staff on base. Everything is hard wired and the conduit is sealed with a tamper proof silicon. The Government is very very particular about their SIPRnet (as they call it). Without wi-fi, what use is the iPad for the military other than to give them a little treat and waste our tax dollars? They already have mobile equipment in the vehicles that is far superior to Apple's products.
In the 1980's my company won a $1 million contract to deliver networked 3D color graphic computers (100 computers on 10 LANs). The computers were used for war games and training at the Army College of Command and Control at Ft. Leavenworth, KS*... across the wide Missouri...
* Home of the famous Junior, Junior High School (officially, General George S. Patton, Jr. Junior High School) :D
This was before color Macs were available, so we used a 68000-based computer from another mfg..
These were used in officer training.
The computers and networks had no special security or "hardening" for the military... quite the opposite, the equipment was required to be available "off-the-shelf".
All of the stuff we struggled to do on computers costing $10,000 each (roughly $50,000 each in todays dollars), is easily within the capability of a $500 WiFi only iPad (Except the ability to run CoBOL programs).
The point is that if the Military can save taxpayer dollars, while improving their capabilities, without sacrificing security... they'd be remiss in their duty to this country.
*
In the 1980's my company won a $1 million contract to deliver networked 3D color graphic computers (100 computers on 10 LANs). The computers were used for war games and training at the Army College of Command and Control at Ft. Leavenworth, KS*... across the wide Missouri...
* Home of the famous Junior, Junior High School (officially, General George S. Patton, Jr. Junior High School) :D
This was before color Macs were available, so we used a 68000-based computer from another mfg..
These were used in officer training.
The computers and networks had no special security or "hardening" for the military... quite the opposite, the equipment was required to be available "off-the-shelf".
All of the stuff we struggled to do on computers costing $10,000 each (roughly $50,000 each in todays dollars), is easily within the capability of a $500 WiFi only iPad (Except the ability to run CoBOL programs).
The point is that if the Military can save taxpayer dollars, while improving their capabilities, without sacrificing security... they'd be remiss in their duty to this country.
*
WildCowboy
Sep 25, 10:38 PM
According to US law, a trademark holder MUST defend their trademarks, or they risk losing them. Google is struggling with this, as they're trying to encourage people not to use it as a generic verb.
Wikipedia Linky (http://en.wikipedia.org/wiki/Public_domain#Trademark)
Wikipedia Linky (http://en.wikipedia.org/wiki/Public_domain#Trademark)
Hastings101
Apr 6, 01:21 AM
Normal people need to type documents, play little flash/java web games that their friends mail them, view youtube videos, facebook, and watch movies.
I'd say current tablets can really only do half of that well. A tablet with a slide out keyboard and Flash&Java could do the other half :p
I'd say current tablets can really only do half of that well. A tablet with a slide out keyboard and Flash&Java could do the other half :p
citizenzen
Apr 7, 08:00 PM
50 billion out of a budget of what? A trillion and a bit?
I could remove 25% of your body weight and make you slim and sexy.
On the other hand, I could remove less than 2% of your body weight and render you a useless, comatose, vegetable.
It's not a matter of how much is cut as it is what is cut.
I could remove 25% of your body weight and make you slim and sexy.
On the other hand, I could remove less than 2% of your body weight and render you a useless, comatose, vegetable.
It's not a matter of how much is cut as it is what is cut.
mkubel
Mar 21, 07:20 PM
Well shooting manual works for what I do. I doubt any sports photographers use anything other than Aperture Priority mode I would think.
I'd never use Aperture Priority mode for sports. It has the potential for dropping the shutter speed to low. I only shoot sports (as well as everything else) in manual mode. I like having the control. If anything for sports I'd lock in a shutter speed.
I'd never use Aperture Priority mode for sports. It has the potential for dropping the shutter speed to low. I only shoot sports (as well as everything else) in manual mode. I like having the control. If anything for sports I'd lock in a shutter speed.
gloss
Mar 27, 11:46 AM
Other than the fact that it identifies the races of the participants, what makes it "racist?"
I think the fact that it takes place in front of a bookstore and is therefore treated as 'noteworthy'.
I also think that some people get their panties in a bunch over some pretty stupid things.
I think the fact that it takes place in front of a bookstore and is therefore treated as 'noteworthy'.
I also think that some people get their panties in a bunch over some pretty stupid things.
Stevamundo
Feb 18, 11:12 AM
This is the photo is full size:
http://www.flickr.com/photos/whitehouse/5455525432/sizes/o/in/photostream/
He does look scarily thin�
Steve Jobs has always looked �scarily thin� ever since his liver transplant.
http://www.flickr.com/photos/whitehouse/5455525432/sizes/o/in/photostream/
He does look scarily thin�
Steve Jobs has always looked �scarily thin� ever since his liver transplant.
blow45
Apr 14, 01:44 PM
I hope this wasn't the guy in charge of the Danger/Sidekick data center...
lol, that would be funny (in a very painful t-mobile kind of way)!:D
lol, that would be funny (in a very painful t-mobile kind of way)!:D
themacthinker
Oct 26, 11:36 PM
Apple is coming up with an update of their production suite this January.
Adobe can keep trying, I don't think that they are getting even close...
Adobe can keep trying, I don't think that they are getting even close...
jose fuertes s.
Oct 19, 12:23 PM
iHope Apple will make this phones with GSM technology, so everyone worldwide could have one. :)
normwood
Feb 24, 06:05 AM
So....regulators are looking into poor parenting skills! :confused:
Our tax dollars hard(ly) at work.
Steve
Our tax dollars hard(ly) at work.
Steve
fyrefly
Apr 20, 11:42 AM
I'll second that, no intel 3000 will be entering my house
And I doubt that there will be a backlit keyboard again. As I said in the last thread apple took it out for a reason not for fun
And that reason was? Thinness? Cost? Do you have any evidence to back this up?
I think it was simple economics - take out the BL keyboard to get the cost under $999 and keep the margins at 30%.
However, as tech gets more mature, and the R&D Cost is recouped for the new design, I think they can re-add the BL Keyboard w/o sacrificing the $999 Price-point or the 30% margins.
As you said, it wasn't just "for fun", but "for profit" and if they can maintain that profit, and return a marquee feature like the BL Keyboard, why not?
And I doubt that there will be a backlit keyboard again. As I said in the last thread apple took it out for a reason not for fun
And that reason was? Thinness? Cost? Do you have any evidence to back this up?
I think it was simple economics - take out the BL keyboard to get the cost under $999 and keep the margins at 30%.
However, as tech gets more mature, and the R&D Cost is recouped for the new design, I think they can re-add the BL Keyboard w/o sacrificing the $999 Price-point or the 30% margins.
As you said, it wasn't just "for fun", but "for profit" and if they can maintain that profit, and return a marquee feature like the BL Keyboard, why not?
Apple Corps
Feb 25, 07:04 PM
I think it's closer to 4-6% for 5 years Pancreatic cancer is the only cancer to have a 5 year survival rate of a single digit.
The five year survival rate for well-differentiated pancreatic endocrine neoplasms is 50% - 70%. None of us have access to specific health records but most published reports (for whatever they are worth) indicate this is what Steve is dealing with.
The five year survival rate for well-differentiated pancreatic endocrine neoplasms is 50% - 70%. None of us have access to specific health records but most published reports (for whatever they are worth) indicate this is what Steve is dealing with.
ColoJohnBoy
May 22, 11:28 AM
As I write this, I am sitting at my parent's old Compaq Presario 5000, with 750 MHz AMD Duron, 576 MB RAM, 30 GB Hard Drive, and 64 MB NVidia GeForce 2 card (Most of it I have upgraded myself) and running Windows XP Home. I have used PCs for about ten years now. I am familiar with them, I know exactly where to find everthing on them, how to fix everything on them.... I know how everything works, even in XP. Yet Last June, I switched to Mac. Why?
1) Design. PC computers are just hideous. Really, they're simply not attractive to look at. The only one that comes glose is Gateway's All-In-One computer. But even that is no iMac. Apple computers really are beautiful. They're simple, graceful, and durable.
2) Mac OS X. Like I said, I know every Windows OS inside and out, having used every iteration of it for ten years. Yet I prefer OS X. Just like the physical design of the computer, OS X is simple, graceful, and durable. What some might perceive as "dumbed down" I see as rid of the unneecessary aspects that all but a small fraction of the computer user population use. It's clear and straightforward, and never have I experienced any problems with it. I admit, it has crashed twice. But both times it was because I was trying to run a severly faulty program. That's two crashes in one year. I'm lucky if I can make it through one day without having Windows (Yes, even XP) crash twice.
3) iApps. I've been using my parents computer lately, and looking for a good MP3 program to use while I do. I've been spoilt by iTunes. There is nothing, absolutely nothing, for PCs that works as well as iTunes. I've been using MusicMatch, but after iTunes it seems clunky, redundant, and difficult to use. Dare I say, unintuitive.
4) Health. I have enough headaches in my life already. I don't need even the small stresses that crashes, program errors, and unintuitive programs cause. I don't stress out when I'm using my Macs. It's like electronic aspirin.
I admit to bashing Pcs. But I must defend myself by saying that I use them enough to be entitled to such bashing. For me, Macs are better, and I bash them with good reason.
That, and bashing PCs is just fun ;)
Visit http://bluepudding.1hwy.com
1) Design. PC computers are just hideous. Really, they're simply not attractive to look at. The only one that comes glose is Gateway's All-In-One computer. But even that is no iMac. Apple computers really are beautiful. They're simple, graceful, and durable.
2) Mac OS X. Like I said, I know every Windows OS inside and out, having used every iteration of it for ten years. Yet I prefer OS X. Just like the physical design of the computer, OS X is simple, graceful, and durable. What some might perceive as "dumbed down" I see as rid of the unneecessary aspects that all but a small fraction of the computer user population use. It's clear and straightforward, and never have I experienced any problems with it. I admit, it has crashed twice. But both times it was because I was trying to run a severly faulty program. That's two crashes in one year. I'm lucky if I can make it through one day without having Windows (Yes, even XP) crash twice.
3) iApps. I've been using my parents computer lately, and looking for a good MP3 program to use while I do. I've been spoilt by iTunes. There is nothing, absolutely nothing, for PCs that works as well as iTunes. I've been using MusicMatch, but after iTunes it seems clunky, redundant, and difficult to use. Dare I say, unintuitive.
4) Health. I have enough headaches in my life already. I don't need even the small stresses that crashes, program errors, and unintuitive programs cause. I don't stress out when I'm using my Macs. It's like electronic aspirin.
I admit to bashing Pcs. But I must defend myself by saying that I use them enough to be entitled to such bashing. For me, Macs are better, and I bash them with good reason.
That, and bashing PCs is just fun ;)
Visit http://bluepudding.1hwy.com
MoreBS
Mar 18, 03:31 PM
I think sometimes people can be intimidated by all the choices. The trick, when learning, is simplify things, imo. [snip]
Do this over and over again, with different subjects, until you get a feel for DoF.
You know that is an excellent suggestion and I am going to do exactly that. Brilliant!
Thank you very much.
Do this over and over again, with different subjects, until you get a feel for DoF.
You know that is an excellent suggestion and I am going to do exactly that. Brilliant!
Thank you very much.
Bear Hunter
Apr 6, 04:08 PM
I know what some of the plans are as I met the reps from Apple when they came to visit us.
edit: ...and as mentioned, some of you have no concept about the military at all. It's pretty amusing actually.
RLTW
edit: ...and as mentioned, some of you have no concept about the military at all. It's pretty amusing actually.
RLTW
GodBless
Sep 19, 04:25 PM
they are about 10 degrees F cooler now at idleThat's good. One would conclude that they are now running slower and quieter at idle since they are not as hot at idle -- much better than the Power Mac G5.
chrissnv
Mar 26, 03:36 PM
It looks like they are right outside of an Apple store!
Actually this is not the Apple Store. The Apple Store is further down University Avenue opposite a Borders (at least for now). The Rumor is that they are thinking about moving to another location on that street.
Actually this is not the Apple Store. The Apple Store is further down University Avenue opposite a Borders (at least for now). The Rumor is that they are thinking about moving to another location on that street.
jdczar
Mar 11, 03:23 PM
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8F190 Safari/6533.18.5)
Lucky 13 in line at the best buy in garland firewheel they said they have 5 of each model and have every model so I should be good there is about 25 in line they took a list of names to keep line integrity
Lucky 13 in line at the best buy in garland firewheel they said they have 5 of each model and have every model so I should be good there is about 25 in line they took a list of names to keep line integrity
Synchro
Oct 24, 04:48 PM
I was as the opening of the Regent st store. Got there about 7am for a 10am opening, and there was already a 300m queue!
Not sure that I'll make it this time.
Not sure that I'll make it this time.
longball11
May 24, 05:12 PM
Um why wouldnt it?
JUst wondering...so it doesoes it work max settings on everything?
JUst wondering...so it doesoes it work max settings on everything?
MacRumors
Mar 19, 03:44 PM
http://www.macrumors.com/images/macrumorsthreadlogo.gif (http://www.macrumors.com/2010/03/19/apple-offering-discounted-ipad-10-packs-to-educational-institutions/)
http://images.macrumors.com/article/2010/03/19/164323-ipad_10_pack.jpg
http://images.macrumors.com/article/2010/03/19/164323-ipad_10_pack.jpg
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