But in actuality, you sell software for as much as you can get for it. There is no fixed relationship between the cost to produce and the price of sale. You sell for the max you can, you try to give different prices to different groups (less for students, more for single users) and do whatever you can to maximize your total revenue. And you can get away with it because the cost to duplicate the original software is close to zero.
I don't buy the argument that making good software is "too hard". Working as a doctor trying to diagnose an obscure illness, that's hard. Rocket to the moon and back with 3 people on board? Hard. Remembering to close your curly braces? Give me a break.
By mandating that software publishers are liable, you actually have to prevent people from entering contracts that limit liability.
That will make software publishing like all other manufacturing activites. In practice, Ford cannot enforce a contract where you promise not to sue when you get seriously burned when your Crown Victoria's gas tank ruptures when the car gets rear ended. Disney cannot enforce a contract that says you will not sue them when your kid gets killed on one of their rides. Pharmacutical makers cannot enforce contracts regarding adverse affects.
Why should software sold at enormous profit escape real world consequences for all the harm done by slap-dash and sloppy work?
If free software does not work, you are getting what you paid for, and it should be exempt from liability. All the buggy closed source stuff? Meet my leetle friend. Hell, you would think that people who took pride in their work would take responsibility in what they are selling.
Use the "filter" they gave you for use with a wall mounted phone. It has two outputs, one filtered and one not. Wire it in right at the phone company interface. Mount the DSL modem as near as possible and get the shortest twisted pair cable that will reach to make the final connection from the unfiltered output on the "filter" to the modem.
Oh, you weren't talking about global warming or the rape of the ecosystem? Not even the dangers of noocluar power? How about [FILL IN ALARMIST AND ARMAGEDDONIST FACTOID HERE]?
OK, this is smart. Take a primary interface structure in use for more than 20 years and already known to hundreds of millions of computer users worldwide, and hide it from them. This appears to be a Microsoft-wide strategy, since Office 2007 doesn't just hide the File, Edit, View and other menus -- it removes them entirely from its three biggest applications. What, are they nuts?
Apparently. Because while Vista doesn't entirely dispose of these menus, it does dump them from many single-purpose applets, all folder windows and, ridiculously, Internet Explorer 7+. While about 90% of the menu items from the old main menu are now available somewhere on drop-down menus connected to icons mounted on the same bar that tabs must squeeze into, the icons aren't particularly obvious. Microsoft has, as a result, remade the main menu structure on text menus that drop from icons. What's up with that? How is that improved design? It isn't. The toolbars themselves are space-constrained. The whole thing is a mess. The Address bar puts Refresh and Stop on one side of the URL field and Back and Forward on the other side, increasing mouse travel required to go between them. Why? Change for change's sake is what it seems.
So who, pray, asked for the File, Edit, and View menus to be hidden or removed? And what about that tired old argument that Windows has a lower TCO because the interface is familiar to all computer users? It won't be familiar after the menus have been borked around with, will it?
I sometimes suspect that Microsoft has not done any real new work since NT, and instead have been hanging new and brightly coloured sandwich boards onto the same decaying corpse, and selling it as a new version which everyone "must have".
There are also many fools who won't look at an equal truth - we as a society have gotten more violent in recent decades. The controls of manners and self restraint that once held such things in check are slipping. It's unlikely that video games bear the whole burden - but it's a reasonable that either as a cause or a symptom, they are likely to be involved.
Yes. And the cause of the slippage is an increasing lack of consequences for the behaviour. If you misbehaved in class in 1942, you got your ass whipped. If you misbehave in class today, you are clearly a "victim of your environment" and people need to "understand" your problems and help you increase your self-esteem. It's all a load of PC bullshit, of course, but it is the result of trying to find a "common ground" or compromise with an evil-doer.
The English have taken this trend to its absurd conclusion, by insisting that criminals engauged in the act of a crime have the same rights as the victim of the crime, with the predictable result that the honest are disarmed, random "fun" attacks against persons are rampant, and the UK Government has all the excuse it needs to place video cameras in every orfice, along with all the other usual constraints on privacy, liberty, and just being let alone to live in peace without Government interference.
Back when you could get a revolver at Harrods, there was a lot less gun crime. Now that handguns are outlawed, only outlaws have handguns:
So I think the terminology should be either "Fans" OR
" -type- + blower" where type is squirril cage, cross flow, regenerative, backward curved, etc. etc.
On the other hand, The classic text "Fan Engineering" from Howden Buffalo is about blower as well.. So who knows?
By making the blade angle steeper presumeably there is more of a vortex from the blade tip for the next blade coming along to hit and make the noise. Although from the number of google hits I got it's probably more complicated than that.
I suspect that too much blade angle causes seperation of the flow past the leading edge of the blade (like stall on a wing) and that turbulence is audible. Speaking of which,
I ran across this nice study the other day, which has smoke trail photos of the stall on the back side of a wing..
The work here is to show that a plasma generated near the leading wing edge prevents the seperation of the flow..
feel free to pantent this application for fans:P
I mean for the fan on top to be forcing air into
the case, NOT sucking it out of the case. I want the case to be pressurized. This is so that I help, not fight against, the fan in the power supply which normally tries to suck air out of the case.
If you can make the air go by the hard drives at high speed, you will get the best result. You might consider making ducts with a clearance of perhaps 1/4 to 1/2 inch from the hard drive, so the air is guided at high speed all the way along the hard drive surface.
I use an AC fan to reduce the load on the power supply, and make the computer more electically efficient. Otherwise I am putting a huge load on the 12 volt rail, and I have paid extra for the 12 volt electricity to drive the fan due to the inefficiency of the power supply.
A 12 volt squirrl cage blower can draw 20 amps. Thats a lot to pull from a PC supply.
P.S. Your mom called and said to tell you to wash your mouth out with soap.
If you suck air out of the case you are fighting against the fan in the power supply. Since that fan (and power supply cooling in general) is marginal, you will get higher power supply temperatures. The natural convection effect that would make hot air move to the top of the case are very weak,
and any fan at all will overwhelm them and blow the hot air away.
Your point about spills is a good one, and actually when I did mechanical work on Vaxes we were requiered to make the top solid so people could put their coffe cups on the mainframe. ON the other hand the people who designed the big tractor feed line printers which printed on continuous fan fold paper made it so that when the printer ran out of paper, the entire top cover sprang open on gas springs like a catapult. So quite a number of cups of coffee were launched across the room by this method.
The solution for a PC case would be to have a solid plate spaced up over the fan by at least half the fan diameter. I don't see how you are going to get a "big" blower inside the unused drive bays.. I can see it external to the case, but the space between the rails seems to limited to fit a squirrel cage blower inside of any real power.
As far as cutting yourself on the case goes, you just need to do that more often. Eventually all the nerve endings die off and then you don't feel anything.:)
It's correct because it provides an excellent cooling solution at lowest cost. If you have the extra money to spend on aluminium, take that extra money and either pay off other debt, or invest it. There is so little material in a case anyway that the percentage of the weight due to choosing steel over aluminium is going to be hard to notice in a fully loaded case.
And as regards the case you point out in the article, I am not convinced that a fan on the side is a good choice since there should be a dead air spot somewhere underneath the center of it, like near the cpu.
Only an airflow measurement would tell for sure.
Yes, my first line was wrong. I failed to read a 29 page article from Tomshardware. By chance, a case with a big fan in it is on page two. Mea culpa.
Now, back to technical issues, I am not suggesting you leave off the side covers of the case. That would actually make the cooling worse in this design. What I am saying is to leave off those small L brackets that block the openings where add on cards are plugged into the motherboard. Furthermore, the case I link to at newegg is metal with a plastic face, not all plastic. Case modding does not mean you have to spend a lot of money. You can buy the parts I suggested and have a great cooling case you built yourself for about $50.
Why would the power supply be blocking the air? You cut the blowhole in the top of the case in a location which is NOT over the power supply. The fan on top has nothing to do with cooling the cpu directly. It is there to remove heated air from the inside of the case.
The cpu fan itself has the main effect of cooling the cpu, and as you will recall from the basic heat transfer equation H=h*A*delta_T, every degree the air in the case is cooler corresponds directly to a degree the CPU is cooler.
The fans these cases use are absurdly small (so they can be really cheap to make)
and using many fans creates added noise due to the
beat frequency between them.
The correct way to go about this is to get a cheap steel case, like this for $20.75
If you use a smaller value cap, the fan will run slower. If you use a larger value cap, the fan will run faster. The fan speed changes a lot for small changes in the cap value.
Now cut a blowhole in the top of the case, bolt the fan on top blowing into the case, and get rid of all other case fans. Leave the faceplates off on both sides of the video card so lots of air rushes out that way.
Millons of x-rayed feet. Ever hear
of foot cancer? Me neither.
A lot like mercury, lead paint, and asbestos,
radon, etc. etc.
We have been conditioned to think of these
as lethal, when in fact problems were rare
except for factory workers producing the product.
vt100 were white screen.
Later terminals, like vt320 were color, so you
could pick whatever color you wanted.
The reals reasone these terminals did what you
wanted was because there was a VAX running VMS on
the other end. Ahh, the good old days.
The current generation is going to turn into their parents,
and if there is any change it will be more, not less restrictive.
Notice how all those weed smokers from the 60s that are
in charge now don't allow weed smoking? Even though, if weed was as harmful as claimed, these people should have disqualified themselves as mentaly unfit. Or at least they
should have an obvious drool.
Grade school kids nowdays are supervised every waking moment. A generation ago we used to run free in the woods or the streets like the happy demons we were, carrying toy guns. By the time we were 13, our parents got us real guns.
Helmets for toddlers. Car seats for everyone. Mandatory seat belts.
No Smoking.
UP next: No saturated fats. No alcohol. NO "junk food"
And no, I don't have a solution to the problem. I do have a
finger to point though: Fabricated hysteria, created by busybody "experts" who want to lord it over the rest of us, neatly packaged by the MSM to get people to watch TV and read the papers, so their eyeballs can be sold to advertisers.
parent said: "In the Middle East, the imans or Islamic Religious rulers dictate how you live your life even to the type of clothes you wear such as jeans not being acceptable."
you said: "The U.S. has no shortage of conservative church leaders who would be glad to tell you what type of clothes to wear, what activities you may engage in, who to associate with, and who to vote for. We even have some factions which would like to enforce their religious rules on all citizens. "
You will be interested to hear about the "The Committee for the Propagation of Virtue and the Prevention of Vice" in saudi arabia.
These are the people who stopped schoolgirls from leaving a blazing building because they were not wearing correct Islamic dress, according to Saudi newspapers.
Slashdot Mirror
I don't buy the argument that making good software is "too hard". Working as a doctor trying to diagnose an obscure illness, that's hard. Rocket to the moon and back with 3 people on board? Hard. Remembering to close your curly braces? Give me a break.
That will make software publishing like all other manufacturing activites. In practice, Ford cannot enforce a contract where you promise not to sue when you get seriously burned when your Crown Victoria's gas tank ruptures when the car gets rear ended. Disney cannot enforce a contract that says you will not sue them when your kid gets killed on one of their rides. Pharmacutical makers cannot enforce contracts regarding adverse affects.
Why should software sold at enormous profit escape real world consequences for all the harm done by slap-dash and sloppy work?
If free software does not work, you are getting what you paid for, and it should be exempt from liability. All the buggy closed source stuff? Meet my leetle friend. Hell, you would think that people who took pride in their work would take responsibility in what they are selling.
Use the "filter" they gave you for use with a wall mounted phone. It has two outputs, one filtered and one not. Wire it in right at the phone company interface. Mount the DSL modem as near as possible and get the shortest twisted pair cable that will reach to make the final connection from the unfiltered output on the "filter" to the modem.
Oh, you weren't talking about global warming or the rape of the ecosystem? Not even the dangers of noocluar power? How about [FILL IN ALARMIST AND ARMAGEDDONIST FACTOID HERE]?
http://64.233.161.104/search?q=cache:AS8b_I0-mEEJ: www.philly.com/mld/philly/news/14691089.htm++%22Gr eenpeace's+fill-in-the-blank+public+relations+melt down%22&hl=en&gl=us&ct=clnk&cd=1
No?
Sorry. Nevermind.
Having actually read the aricle, I find this:
OK, this is smart. Take a primary interface structure in use for more than 20 years and already known to hundreds of millions of computer users worldwide, and hide it from them. This appears to be a Microsoft-wide strategy, since Office 2007 doesn't just hide the File, Edit, View and other menus -- it removes them entirely from its three biggest applications. What, are they nuts? Apparently. Because while Vista doesn't entirely dispose of these menus, it does dump them from many single-purpose applets, all folder windows and, ridiculously, Internet Explorer 7+. While about 90% of the menu items from the old main menu are now available somewhere on drop-down menus connected to icons mounted on the same bar that tabs must squeeze into, the icons aren't particularly obvious. Microsoft has, as a result, remade the main menu structure on text menus that drop from icons. What's up with that? How is that improved design? It isn't. The toolbars themselves are space-constrained. The whole thing is a mess. The Address bar puts Refresh and Stop on one side of the URL field and Back and Forward on the other side, increasing mouse travel required to go between them. Why? Change for change's sake is what it seems.
So who, pray, asked for the File, Edit, and View menus to be hidden or removed? And what about that tired old argument that Windows has a lower TCO because the interface is familiar to all computer users? It won't be familiar after the menus have been borked around with, will it?
I sometimes suspect that Microsoft has not done any real new work since NT, and instead have been hanging new and brightly coloured sandwich boards onto the same decaying corpse, and selling it as a new version which everyone "must have".
Bah.
And Feh, too.
Yes. And the cause of the slippage is an increasing lack of consequences for the behaviour. If you misbehaved in class in 1942, you got your ass whipped. If you misbehave in class today, you are clearly a "victim of your environment" and people need to "understand" your problems and help you increase your self-esteem. It's all a load of PC bullshit, of course, but it is the result of trying to find a "common ground" or compromise with an evil-doer.
The English have taken this trend to its absurd conclusion, by insisting that criminals engauged in the act of a crime have the same rights as the victim of the crime, with the predictable result that the honest are disarmed, random "fun" attacks against persons are rampant, and the UK Government has all the excuse it needs to place video cameras in every orfice, along with all the other usual constraints on privacy, liberty, and just being let alone to live in peace without Government interference.
Back when you could get a revolver at Harrods, there was a lot less gun crime. Now that handguns are outlawed, only outlaws have handguns:
http://news.bbc.co.uk/1/hi/uk/1440764.stm
Citizens are advised to lock themselves into their bathrooms during home invasions. Who didn't see THAT coming.
Can you imagine a case with this on it? LOL!
http://www.emarineinc.com/products/hardware/vents. html
http://www.surpluscenter.com/item.asp?UID=20060530 14451604&item=16-958-A&catname=electric
All other configurations are called blowers, like this classic design:
http://www.surpluscenter.com/item.asp?UID=20060530 14451604&item=16-930&catname=electric
Or more unusual designs like this regenerative ring blower good for a pressure of 40 inches!!! of water column.
http://www.surpluscenter.com/item.asp?UID=20060530 14451604&item=16-1084&catname=electric
So I think the terminology should be either "Fans" OR " -type- + blower" where type is squirril cage, cross flow, regenerative, backward curved, etc. etc.
On the other hand, The classic text "Fan Engineering" from Howden Buffalo is about blower as well.. So who knows?
http://www.yourcompanyshop.com/howdenbuffalo/catal og/default.aspx?lid=52
http://www.aero.gla.ac.uk/Research/LowSpeedAero/Ol dbvi.htm
By making the blade angle steeper presumeably there is more of a vortex from the blade tip for the next blade coming along to hit and make the noise. Although from the number of google hits I got it's probably more complicated than that.
pics start on page 5 of this pdf file..
http://plasma.ee.utk.edu/~plasma/publi/AFOSR_repor t.pdf
The work here is to show that a plasma generated near the leading wing edge prevents the seperation of the flow.. feel free to pantent this application for fans :P
I mean for the fan on top to be forcing air into the case, NOT sucking it out of the case. I want the case to be pressurized. This is so that I help, not fight against, the fan in the power supply which normally tries to suck air out of the case.
If you compare the following setups at equal flow:
A single big fan at low speed
A small fan at high speed
Multiple small fans at low speed
The single big fan will have the lowest noise. Also I like doing things the hard way.
If you can make the air go by the hard drives at high speed, you will get the best result. You might consider making ducts with a clearance of perhaps 1/4 to 1/2 inch from the hard drive, so the air is guided at high speed all the way along the hard drive surface.
A 12 volt squirrl cage blower can draw 20 amps. Thats a lot to pull from a PC supply.
P.S. Your mom called and said to tell you to wash your mouth out with soap.
If you suck air out of the case you are fighting against the fan in the power supply. Since that fan (and power supply cooling in general) is marginal, you will get higher power supply temperatures. The natural convection effect that would make hot air move to the top of the case are very weak, and any fan at all will overwhelm them and blow the hot air away.
The solution for a PC case would be to have a solid plate spaced up over the fan by at least half the fan diameter. I don't see how you are going to get a "big" blower inside the unused drive bays.. I can see it external to the case, but the space between the rails seems to limited to fit a squirrel cage blower inside of any real power.
As far as cutting yourself on the case goes, you just need to do that more often. Eventually all the nerve endings die off and then you don't feel anything. :)
It's correct because it provides an excellent cooling solution at lowest cost. If you have the extra money to spend on aluminium, take that extra money and either pay off other debt, or invest it. There is so little material in a case anyway that the percentage of the weight due to choosing steel over aluminium is going to be hard to notice in a fully loaded case.
And as regards the case you point out in the article, I am not convinced that a fan on the side is a good choice since there should be a dead air spot somewhere underneath the center of it, like near the cpu. Only an airflow measurement would tell for sure.
Now, back to technical issues, I am not suggesting you leave off the side covers of the case. That would actually make the cooling worse in this design. What I am saying is to leave off those small L brackets that block the openings where add on cards are plugged into the motherboard. Furthermore, the case I link to at newegg is metal with a plastic face, not all plastic. Case modding does not mean you have to spend a lot of money. You can buy the parts I suggested and have a great cooling case you built yourself for about $50.
Why would the power supply be blocking the air? You cut the blowhole in the top of the case in a location which is NOT over the power supply. The fan on top has nothing to do with cooling the cpu directly. It is there to remove heated air from the inside of the case. The cpu fan itself has the main effect of cooling the cpu, and as you will recall from the basic heat transfer equation H=h*A*delta_T, every degree the air in the case is cooler corresponds directly to a degree the CPU is cooler.
The fans these cases use are absurdly small (so they can be really cheap to make) and using many fans creates added noise due to the beat frequency between them.
The correct way to go about this is to get a cheap steel case, like this for $20.75
http://www.newegg.com/Product/Product.asp?Item=N82 E16811156011
Then get a fan like this for $9.95
http://www.surpluscenter.com/item.asp?UID=20060529 19261386&item=16-1331&catname=electric
Now to slow the fan down, to make it quiet, wire a motor run capacitor in series with the fan. Use a cap like this ($1.99) :
http://www.surpluscenter.com/item.asp?UID=20060529 19273017&item=22-1186&catname=electric
If you use a smaller value cap, the fan will run slower. If you use a larger value cap, the fan will run faster. The fan speed changes a lot for small changes in the cap value.
Now cut a blowhole in the top of the case, bolt the fan on top blowing into the case, and get rid of all other case fans. Leave the faceplates off on both sides of the video card so lots of air rushes out that way.
Stick a fork in it. It's done.
That's not true.
o r.html
China is still producing, using, and venting vast amounts of CFCs today.
http://www.chinadevelopmentbrief.com/node/371
other producers may also exist, see the somewhat out of date list at greenpeace.
http://archive.greenpeace.org/ozone/chlorine/5chl
Millons of x-rayed feet. Ever hear of foot cancer? Me neither.
A lot like mercury, lead paint, and asbestos, radon, etc. etc. We have been conditioned to think of these as lethal, when in fact problems were rare except for factory workers producing the product.
vt100 were white screen. Later terminals, like vt320 were color, so you could pick whatever color you wanted. The reals reasone these terminals did what you wanted was because there was a VAX running VMS on the other end. Ahh, the good old days.
Boy do I have a surprise for you:
The current generation is going to turn into their parents, and if there is any change it will be more, not less restrictive.
Notice how all those weed smokers from the 60s that are in charge now don't allow weed smoking? Even though, if weed was as harmful as claimed, these people should have disqualified themselves as mentaly unfit. Or at least they should have an obvious drool.
Grade school kids nowdays are supervised every waking moment. A generation ago we used to run free in the woods or the streets like the happy demons we were, carrying toy guns. By the time we were 13, our parents got us real guns.
Helmets for toddlers. Car seats for everyone. Mandatory seat belts. No Smoking.
UP next: No saturated fats. No alcohol. NO "junk food"
And no, I don't have a solution to the problem. I do have a finger to point though: Fabricated hysteria, created by busybody "experts" who want to lord it over the rest of us, neatly packaged by the MSM to get people to watch TV and read the papers, so their eyeballs can be sold to advertisers.
Yes.
e nzene&num=10&hl=en&btnG=Google+Search&as_epq=&as_o q=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_o cct=any&as_dt=i&as_sitesearch=&as_rights=&safe=ima ges
The MPAA is more like Perrier.
http://www.google.com/search?as_q=perrier+water+b
Sell crap. Make light of the problem.
parent said:
m
o pagation_of_Virtue_and_the_Prevention_of_Vice
"In the Middle East, the imans or Islamic Religious rulers dictate how you live your life even to the type of clothes you wear such as jeans not being acceptable."
you said:
"The U.S. has no shortage of conservative church leaders who would be glad to tell you what type of clothes to wear, what activities you may engage in, who to associate with, and who to vote for. We even have some factions which would like to enforce their religious rules on all citizens. "
You will be interested to hear about the "The Committee for the Propagation of Virtue and the Prevention of Vice" in saudi arabia.
These are the people who stopped schoolgirls from leaving a blazing building because they were not wearing correct Islamic dress, according to Saudi newspapers.
http://news.bbc.co.uk/2/hi/middle_east/1874471.st
also see this wikipedia article
http://en.wikipedia.org/wiki/Committee_for_the_Pr
I look forward to you telling me that we in the US are just as bad.
Feh.