And when you DO unscrew the shower head you will find......
NOTHING!
Because this story is largely BULL. You can stick a swab just about anywhere and find SOMETHING to sensationalize.
But having done more than my share of plumbing I can tell you shower heads are as clean on the inside the day you replace them as they were the day you installed them.
You might find calcium deposits. But then thats also in your tap where you get water to drink or cook.
Could you possibly find some bacteria? Probably, especially if you live where water is not chlorinated.
But is there enough to make you sick?
Well lets think about that for a second: If this bacteria could be washed out of the shower head onto you, then simply running the shower for a minute before you step in would solve the problem. And, don't we all do this anyway?
Assuming any comparable braking systems in both cars and trucks, the point I'm trying to make is that "Lord Byron Eee PC"'s expounding of mathematical formula about weight and mass totally ignores the dynamics involved.
The fact that there were imperfect ways of stopping a wheel really has very little to do with this segment of the discussion thread.
Given that your brakes allow you to lock up the wheels in a panic stop, be it on a passenger car or an 18 wheeler, the equation comes down to the number of square inchs of rubber on the road, with some allowance for the coefficient of friction of the specific tire materials.
Truck tires tend to be made of harder rubber to give longer life. This also makes them grab the road less, as it takes more weight to pres the rubber into the irregularities of the road surface.
This combined with higher tire pressure makes lightly loaded trucks skid easier.
Its not immediately obvious to many people that tire pressure dictates the number of square inches of tire that will be in contact with the road.
At any given pressure, adding more weight deforms the tire adding more inches of contact area.
Counterintuitively the tire pressure does not increase much as weight is added. The tire simply deforms, recruiting more square inches to carry the load.
Tire pressure also dictates the pounds per square inch that the vehicle imposes on the roadway.
Yet it it total contact area which controls braking efficiency.
So a lightly loaded heavy truck with high pressure tires applies the same weight per square inch as the same truck with a heavy load, but has significantly smaller contact patches under each tire, and therefore less friction available for braking.
It has nothing to do with HOW you stop the wheel.
It has everything to do with the amount of friction you can generate once the wheel is stopped, and that is largely determined by the contact patch.
There is a reason dragsters run huge tires at LOW pressure (7psi).
Actually, I try not to show the iphone in public places, preferring to keep it in an inside pocket and use a bluetooth. No reason to tempt the snatch and run hoodies around here.
But the parent post is far too dismissive of the rampant fanboy-ism among apple users. Inspite of a dated interface, lock-down restrictions, and abusive corporate policy, they continue in their cliquish behavior in social settings, pretty much dissing any other phone that is not from Apple, while gushing over the latest fart app.
Its embarrassing. So much so, that rather than join this cabal, I keep the iphone in a pocket and try to change the subject. I'm happy with the phone, but embarrassed by the behavior of most iPhone users I meet in social settings.
> And mu, which depends on the tires and the road is also important.
A bit of an understatement there.
The number of square inches tire on the road and the pressure of those tires comes into play as does the texture of the road surface. Because trucks run higher pressure tires, they have fewer square inches per pound than do cars.
Since the road surface is essentially the same for all vehicles at a given point, it comes down to square inches when brakes are applied hard.
However, there is often an inverse relationship of weight and stopping distance for big trucks. This is where your mathematical model falls apart.
The boundary of space was 65 miles (100km) but NASA pushed it higher after 150 miles, mostly out of a fit of pique following SpaceShipOne's successful claim on the X-Prize.
In any event, 20 miles is pretty impressive, but its still not Space, although, as Sarah would say, you can see it from there...
TFA is one of the most confused articles I've seen in a long time.
If Stuart Wolpert had just let the scientists write it, chances are it might be intelligible. As it is it was muddled, convoluted, mis-stated, and just plain wrong on many points.
Never let a journalism student, or worse yet, one who hung around after graduating into the Science buildings.
Getting Amazon to brick your LOST device is just as important as getting them to brick you STOLEN device. Lost and Stolen are equivalent as far as your device being in someone else's hands.
I'm telling you that walking in any busy police department in any city bigger than 100,000 people and asking for signatures on paper so that you can force Amazon to do something is a fools errand.
(Which is precisely why Amazon insists you do it, knowing full well you can never succeed).
Cops will tell you to file an insurance claim and move on with your life.
You will walk out, trudge to your insurance company and file a claim only to be told you need a copy police report.
I'm glad you live in such a peaceful small town where you can get cops to pay attention to a 300 dollar claim. Must be nice there. You should visit a big city some time.
Don't you think cops have more to do than fill out paper work on a kindle you lost? Even if it was Stolen out of your back pack, who has time to have cops filling out paperwork for a 300 dollar device?
You might get away with filing such a report in Pincushion Arizona, but they will laugh you out of the station in Dallas.
Turning around and screwing the person who bought t does not bring the kindle back to their hands to sell again.
Amazon knows who owns it, that owner can prove who he is and which kindle he owns. Its this little magic thing called an Original Amazon Bill of Sale, you know, the one with your credit card and the serial number on the same piece of paper?
Just where do you get your gadgets that such things are unfamiliar to you?
But as noted in TFA, this poses a problem, as it's too easy for someone to contact them, pretending to be you, and reporting *your* Kindle as stolen...
What *should* happen is that Mr. Borgese files a police report on the stolen Kindle, and can then contact Amazon, with the police report number as evidence that he's not some practical joker.
First: how is a practical joker going to get my Kindle's serial number, mac address, and imei number? You are imagining a problem that does not exist.
Second: Why should the police be involved? If I leave my Kindle in an airport while visiting New Mexico, do I report it stolen? To who? My home town police? New Mexico?
Third: At what price level is Police involvement warranted? Its not exactly Grand Theft Kindle you know. Cops have a few more important things to do. Cops have no authority to get involved unless a crime was committed. Losing your Kindle is not a crime.
Fifth: Cellphone companies in Europe do put stolen phones on a list. They can't be activated. US carriers refuse to do that. Its the same problem as Kindles. They can tell you who has it by by which credit card was used to purchase books. If they won't tell you they should be obligated to disable it.
Sixth: Protecting a thief makes them Amazon a co-conspirator.
When you create the media, if you assign o+r permissions to all files and directories non root users on the destination machine will be able to read and copy files onto their other nix box.
If they have to write give them o+w as well.
This inability to read ext2/3/4 files if you have different uids isn't a bug, its a feature.
So what are we after here, non-toxicity or non radioactive.
They are still radioactive, but containment might be somewhat easier because they are inert seems to be the major claim here.
This sounds a little like painting the DANGER sign green. Its not clear to me that the major problem with containment was the reactivity of the isotopes, but rather their radioactivity.
> If you know where this magic software is that knows almost every useful property of almost > every known material, I and my employer would pay huge amounts of money for it.
Google "materials databases", and while you are reading about all of them be aware that major companies are not going to tell you about theirs. I assure you Intel has a huge one, as does Dow, and most every major manufacturing company.
You don't have to know the exact properties of "hair" if you know the chemical makeup of hair. Anyone searching for good semiconductor material would have found hair if it was feasible.
The chances of this being both real AND viable if developed in the best labs of Japan, Germany, Korea, or the US would be slim to none.
The chances of being developed by a kid from a village with no electricity are astronomically small. (Here is where I get modded troll for showing a western bias. So be it.)
Everybody up-thread is debating ohm's law and assorted fine points while failing to notice the 800 pound gorilla looking over their shoulder. Do these people thing materials research would have missed this attribute of hair? These things are not done by chance any more like Edison tinkering in his lab and jerking whiskers out of a passing cat trying to develop a filament for a light bulb. You need a material that has certain properties, you key it into the computer and out pops all the candidates, the good, the bad, and the ridiculous, all rated on any number of scales you wish.
Slashdot Mirror
And when you DO unscrew the shower head you will find......
NOTHING!
Because this story is largely BULL. You can stick a swab just about anywhere and find SOMETHING to sensationalize.
But having done more than my share of plumbing I can tell you shower heads are as clean on the inside the day you replace them as they were the day you installed them.
You might find calcium deposits. But then thats also in your tap where you get water to drink or cook.
Could you possibly find some bacteria? Probably, especially if you live where water is not chlorinated.
But is there enough to make you sick?
Well lets think about that for a second: If this bacteria could be washed out of the shower head onto you, then simply running the shower for a minute before you step in would solve the problem.
And, don't we all do this anyway?
Tempest. Teapot.
Actually, even tho you were modded off-topic, you probably have something here...
Simply don't be the first to shower. Problem solved.
Also seems to me that the normal Run it till its hot drill would solve this issue, as any concentration is likely in the first 20 seconds.
True, but ABS was designed to allow better control, not shorter stopping distance.
On anything other than smooth dry pavement, ABS can lengthen stopping distance by up to 22%.
http://www.nhtsa.dot.gov/staticfiles/DOT/NHTSA/NRD/Multimedia/PDFs/VRTC/ca/capubs/NHTSAabsT4FinalRpt.pdf
And the requirement for ABS use in Trucks is still being finalized:
http://bulktransporter.com/management/tank-truck/highway-traffic-safety-brake-systems-0310/
Assuming any comparable braking systems in both cars and trucks, the point I'm trying to make is that "Lord Byron Eee PC"'s expounding of mathematical formula about weight and mass totally ignores the dynamics involved.
The fact that there were imperfect ways of stopping a wheel really has very little to do with this segment of the discussion thread.
Given that your brakes allow you to lock up the wheels in a panic stop, be it on a passenger car or an 18 wheeler, the equation comes down to the number of square inchs of rubber on the road, with some allowance for the coefficient of friction of the specific tire materials.
Truck tires tend to be made of harder rubber to give longer life. This also makes them grab the road less, as it takes more weight to pres the rubber into the irregularities of the road surface.
This combined with higher tire pressure makes lightly loaded trucks skid easier.
Its not immediately obvious to many people that tire pressure dictates the number of square inches of tire that will be in contact with the road.
At any given pressure, adding more weight deforms the tire adding more inches of contact area.
Counterintuitively the tire pressure does not increase much as weight is added. The tire simply deforms, recruiting more square inches to carry the load.
Tire pressure also dictates the pounds per square inch that the vehicle imposes on the roadway.
Yet it it total contact area which controls braking efficiency.
So a lightly loaded heavy truck with high pressure tires applies the same weight per square inch as the same truck with a heavy load, but has significantly smaller contact patches under each tire, and therefore less friction available for braking.
It has nothing to do with HOW you stop the wheel.
It has everything to do with the amount of friction you can generate once the wheel is stopped, and that is largely determined by the contact patch.
There is a reason dragsters run huge tires at LOW pressure (7psi).
Actually, I try not to show the iphone in public places, preferring to keep it in an inside pocket and use a bluetooth. No reason to tempt the snatch and run hoodies around here.
But the parent post is far too dismissive of the rampant fanboy-ism among apple users. Inspite of a dated interface, lock-down restrictions, and abusive corporate policy, they continue in their cliquish behavior in social settings, pretty much dissing any other phone that is not from Apple, while gushing over the latest fart app.
Its embarrassing. So much so, that rather than join this cabal, I keep the iphone in a pocket and try to change the subject. I'm happy with the phone, but embarrassed by the behavior of most iPhone users I meet in social settings.
> And mu, which depends on the tires and the road is also important.
A bit of an understatement there.
The number of square inches tire on the road and the pressure of those tires comes into play as does the texture of the road surface. Because trucks run higher pressure tires, they have fewer square inches per pound than do cars.
Since the road surface is essentially the same for all vehicles at a given point, it comes down to square inches when brakes are applied hard.
However, there is often an inverse relationship of weight and stopping distance for big trucks. This is where your mathematical model falls apart.
A empty truck may skid farther than a fully loaded one. http://books.google.com/books?id=I511spiUbQsC&lpg=PA18&ots=pY7kxO4ewx&dq=stopping%20distance%20lightly%20loaded%20trucks&pg=PA18#v=onepage&q=&f=false
Further, you over look the fact that stopping distances of various vehicle classes are not designed to the same standards. Recently, the NHTSA mandated shorter stopping distance for trucks to bring them more in line with typical passenger vehicle standards. http://www.examiner.com/x-17128-Houston-Truck-Industry-Examiner~y2009m7d27-Amendment-mandates-new-truck-stopping-distance
The boundary of space was 65 miles (100km) but NASA pushed it higher after 150 miles, mostly out of a fit of pique following SpaceShipOne's successful claim on the X-Prize.
In any event, 20 miles is pretty impressive, but its still not Space, although, as Sarah would say, you can see it from there...
Except that mbg is not used for surface mount chips.
> What's a power seller?
Someone living in his mom's basement selling stuff he's never seen, and doesn't even own yet.
TFA is one of the most confused articles I've seen in a long time.
If Stuart Wolpert had just let the scientists write it, chances are it might be intelligible. As it is it was muddled, convoluted, mis-stated, and just plain wrong on many points.
Never let a journalism student, or worse yet, one who hung around after graduating into the Science buildings.
Maybe because this chip really does not support N?
Just because it is from that family of chips doesn't mean it has N.
Look at the designator on the end of the chipset full designation: BCM4329FKUBG That BG at the end may be telling.
I'm sure when Apple calls, Broadcom pays attention, and will burn custom chip sets, omitting any feature Apple does not want.
the full BCM4329FKUBG designation does not appear in Broadcom's catalog. Its a custom chip.
Besides, N requires special antennas. They were not found.
In the mean time, Seattle is awash in Gang murders.
Getting Amazon to brick your LOST device is just as important as getting them to brick you STOLEN device. Lost and Stolen are equivalent as far as your device being in someone else's hands.
I'm telling you that walking in any busy police department in any city bigger than 100,000 people and asking for signatures on paper so that you can force Amazon to do something is a fools errand.
(Which is precisely why Amazon insists you do it, knowing full well you can never succeed).
Cops will tell you to file an insurance claim and move on with your life.
You will walk out, trudge to your insurance company and file a claim only to be told you need a copy police report.
I'm glad you live in such a peaceful small town where you can get cops to pay attention to a 300 dollar claim. Must be nice there. You should visit a big city some time.
Un-brick a device that requires a network connection to work?
You don't just open the cover and flip a switch you know. You need access to Amazon's computers.
The people who have the skills for this don't need to steal their toys.
Don't you think cops have more to do than fill out paper work on a kindle you lost? Even if it was Stolen out of your back pack, who has time to have cops filling out paperwork for a 300 dollar device?
You might get away with filing such a report in Pincushion Arizona, but they will laugh you out of the station in Dallas.
> Wouldn't it be a bitch if I called onStar and said "Oooh, hey buddy
Stolen cars show up in police reports.
So would you if you pulled this stunt.
And why would they do that?
They sold it. They got their money.
Turning around and screwing the person who bought t does not bring the kindle back to their hands to sell again.
Amazon knows who owns it, that owner can prove who he is and which kindle he owns. Its this little magic thing called an Original Amazon Bill of Sale, you know, the one with your credit card and the serial number on the same piece of paper?
Just where do you get your gadgets that such things are unfamiliar to you?
But as noted in TFA, this poses a problem, as it's too easy for someone to contact them, pretending to be you, and reporting *your* Kindle as stolen...
What *should* happen is that Mr. Borgese files a police report on the stolen Kindle, and can then contact Amazon, with the police report number as evidence that he's not some practical joker.
First: how is a practical joker going to get my Kindle's serial number, mac address, and imei number? You are imagining a problem that does not exist.
Second: Why should the police be involved? If I leave my Kindle in an airport while visiting New Mexico, do I report it stolen? To who? My home town police? New Mexico?
Third: At what price level is Police involvement warranted? Its not exactly Grand Theft Kindle you know. Cops have a few more important things to do. Cops have no authority to get involved unless a crime was committed. Losing your Kindle is not a crime.
Fifth: Cellphone companies in Europe do put stolen phones on a list. They can't be activated.
US carriers refuse to do that. Its the same problem as Kindles. They can tell you who has it by by which credit card was used to purchase books. If they won't tell you they should be obligated to disable it.
Sixth: Protecting a thief makes them Amazon a co-conspirator.
Then Sun should, in fact, keep it confidential.
I'm betting it was leaked to give some assurance to the customer base that there will actually BE a Sun in the future.
This is not exactly true.
When you create the media, if you assign o+r permissions to all files and directories non root users on the destination machine will be able to read and copy files onto their other nix box.
If they have to write give them o+w as well.
This inability to read ext2/3/4 files if you have different uids isn't a bug, its a feature.
Is uranium water soluble?
My understanding was that uranium was not, irradiated uranium grains have been intact for over a billion years.
Uranium oxide (UO2) is slightly soluble. (same source).
So this discovery seems not aimed at Uranium waste management, but perhaps at medical waste.
So what are we after here, non-toxicity or non radioactive.
They are still radioactive, but containment might be somewhat easier because they are inert seems to be the major claim here.
This sounds a little like painting the DANGER sign green. Its not clear to me that the major problem with containment was the reactivity of the isotopes, but rather their radioactivity.
Mod parent "If it sounds too good to be true, it probably is."
> If you know where this magic software is that knows almost every useful property of almost
> every known material, I and my employer would pay huge amounts of money for it.
Google "materials databases", and while you are reading about all of them be aware that major companies are not going to tell you about theirs.
I assure you Intel has a huge one, as does Dow, and most every major manufacturing company.
You don't have to know the exact properties of "hair" if you know the chemical makeup of hair. Anyone searching for good semiconductor material would have found hair if it was feasible.
That's what I thought too.
The chances of this being both real AND viable if developed in the best labs of Japan, Germany, Korea, or the US would be slim to none.
The chances of being developed by a kid from a village with no electricity are astronomically small. (Here is where I get modded troll for showing a western bias. So be it.)
Everybody up-thread is debating ohm's law and assorted fine points while failing to notice the 800 pound gorilla looking over their shoulder. Do these people thing materials research would have missed this attribute of hair? These things are not done by chance any more like Edison tinkering in his lab and jerking whiskers out of a passing cat trying to develop a filament for a light bulb. You need a material that has certain properties, you key it into the computer and out pops all the candidates, the good, the bad, and the ridiculous, all rated on any number of scales you wish.
A little skepticism goes a long way.