My work focuses on solar cell materials in the nano-regime; there are others in our lab that work on Li-ion battery research of both anode and cathode materials. I use both TEM and SEM regularly. I have also worked with one of the authors of the paper -- he was a post-doc in our lab before working at Sandia.
The post you cite has some errors and overstatements, although it is generally sound.
Plus you have to find a way to make the thing less than 20 nanometers
This is wholly incorrect. The TEM grid itself is on the millimeter scale, and the structures we examine range from less than 100 nm to 200 nm or greater.
Constructing a TEM specimen with the intention of looking at a tiny little feature of some larger piece of material is extremely difficult.
Yes and no. I performed an experiment today where the sample preparation only took around 8 hours (this is due to the reaction, not due to the difficulty of preparing a TEM sample itself). If the preparation of samples for TEM and the utilization of the method were so difficult, the technique would not be used in as many studies as it is.
The CRT is a mature technology too. Doesn't mean it's ideal, or nearly ideal.
And just because you can think of an example of another technology that isn't ideal, doesn't mean that TEM isn't.
The experiments we perform involve analysis using TEM almost every day. It's not as lacking as you make it out to be; sample preparation often involves scraping a sample onto a grid, putting the grid in a holder, inserting the holder into the TEM and waiting for the insertion chamber to pump down.
[B]ut I bet we'd have a lot more insight if these things could be analyzed and seen in realtime without any of the tedious preparation and other obstacles.
One of the merits of this paper is the in-situ observation; that is Xiaohua's specialty, and that's why he's working at Sandia now. You're also right that these observations can provide insight. However, just being able to see this happen in real-time doesn't impart all of the information necessary to understand a phenomenon. I performed an in-situ observation of a diffusion process using TEM today; it's a piece of data that will add to our argument, but alone it isn't definitive.
My point is that TEM isn't as limited or immature as you suggest, real-time in-situ observation using TEM is helpful but is not as powerful as you imply, and you trivialize important and difficult science ("presumably complicated battery physics").
I'm guessing our tools to get a peak of the nano-regime realm must still be in their early stages technogically.
Do you even know how a TEM works? It is most definitely not an immature technology -- it's been around for ~80 years. Science isn't as simple as throwing something under a microscope and suddenly knowing exactly how it works. If it were, we'd already know everything and people such as yourself wouldn't make such asinine comments.
This will probably be modded off topic or the like, but I wanted to just add a random fact. One of the authors of this paper was a post-doc in the same lab as me before he started working at Sandia; we were working on a solar cell material project together.
The paper regarding lithium intercalation is located here.
Sarah Palin was a nobody, just one more Alaskan who said some pretty crazy stuff.... she's crazy as far as Alaskans go.... yet America insists of giving her credibility...
My God! I just had a realization -- Liu Xiaobo is Sarah Palin!
The discovery of this microorganism that can use arsenic to build its cellular components may indicate that life can form in the absence of large amounts of available phosphorus, thus increasing the probability of finding life elsewhere in the universe.
To me, this is not indication that life can form on other planets with chemical makeups vastly different from that of our planet. This is an organism that formed with phosphorus and could survive with As replacing P. Also, in the experiments, there was not a complete exchange of P and As. These findings cannot be construed to mean that life forms spontaneously without P present -- the argument can be made that P is still necessary for the formation of life.
I don't know what you mean by "getting them together", but a stir plate was used.
separating them?
There was probably no electricity involved in this process; they used standard filter paper and then a 0.5 micron filter. The first process was most likely gravity filtration and the second probably involved a syringe.
Is there anything need to remove excess heat from the process?
The reaction is carried out at 25 degrees Celsius; no, there is no excess heat.
I'm only in my 20s, so most of those years don't count. I was just surprised that you found an area where most people aren't crazy staunch "Republicans".
Hell, Hammurabi's first code of laws included an eye for an eye.
The year is 2010 AD, not the mid-1700s BC. Hammurabi's laws also included such gems as --
The precursor to witch trials: If any one bring an accusation against a man, and the accused go to the river and leap into the river, if he sink in the river his accuser shall take possession of his house. But if the river prove that the accused is not guilty, and he escape unhurt, then he who had brought the accusation shall be put to death, while he who leaped into the river shall take possession of the house that had belonged to his accuser.
Promoted eavesdropping: If conspirators meet in the house of a tavern-keeper, and these conspirators are not captured and delivered to the court, the tavern-keeper shall be put to death.
And also called for incredibly harsh punishments for children: If a son of a paramour or a prostitute say to his adoptive father or mother: "You are not my father, or my mother," his tongue shall be cut off.
Source. I will admit though, that some of the laws appear to be both well-reasoned and well-thought.
So they should be grouped with their own.
What you say here would be correct if we segregated murderers with murderers, rapists with rapists, thieves with thieves, etc. . . This however, is not the case. The line of thinking is much more akin to a thought of "throw them to the wolves."
And we're not calling for the death penalty for the executives that caused the deaths of 11 workers. ..
Who says some people aren't? Also, there are varying penalties for manslaughter and homicide based on the intent.
. ..possibly caused cancer in thousands of cleanup volunteers. ..
Improper protection and unmitigated exposure is what would cause cancer to cleanup crews, not the executives.
. ..and did incalculable damage to the gulf environment and fishery businesses.
I don't know what a fair penalty would be in this case. Monetary compensation of those whose businesses were hurt would be a start. This is being carried out. It's also akin to the eye-for-an-eye law in Hammurabi's code that you like, no?
Some at BP needs to do Pound-me-in-the-ass prison time.
The fact that you and many others condone prison justice in the form of the very acts that cause people to go to prison is a brilliant example of how sad our society has become.
Slashdot Mirror
Looks like you need to change your username to Vyse of Anniston.
Do do otherwise is foolhardy
I don't think talking about excrement will help your argument.
The post you cite has some errors and overstatements, although it is generally sound.
Plus you have to find a way to make the thing less than 20 nanometers
This is wholly incorrect. The TEM grid itself is on the millimeter scale, and the structures we examine range from less than 100 nm to 200 nm or greater.
Constructing a TEM specimen with the intention of looking at a tiny little feature of some larger piece of material is extremely difficult.
Yes and no. I performed an experiment today where the sample preparation only took around 8 hours (this is due to the reaction, not due to the difficulty of preparing a TEM sample itself). If the preparation of samples for TEM and the utilization of the method were so difficult, the technique would not be used in as many studies as it is.
The CRT is a mature technology too. Doesn't mean it's ideal, or nearly ideal.
And just because you can think of an example of another technology that isn't ideal, doesn't mean that TEM isn't.
The experiments we perform involve analysis using TEM almost every day. It's not as lacking as you make it out to be; sample preparation often involves scraping a sample onto a grid, putting the grid in a holder, inserting the holder into the TEM and waiting for the insertion chamber to pump down.
[B]ut I bet we'd have a lot more insight if these things could be analyzed and seen in realtime without any of the tedious preparation and other obstacles.
One of the merits of this paper is the in-situ observation; that is Xiaohua's specialty, and that's why he's working at Sandia now. You're also right that these observations can provide insight. However, just being able to see this happen in real-time doesn't impart all of the information necessary to understand a phenomenon. I performed an in-situ observation of a diffusion process using TEM today; it's a piece of data that will add to our argument, but alone it isn't definitive.
My point is that TEM isn't as limited or immature as you suggest, real-time in-situ observation using TEM is helpful but is not as powerful as you imply, and you trivialize important and difficult science ("presumably complicated battery physics").
I'm guessing our tools to get a peak of the nano-regime realm must still be in their early stages technogically.
Do you even know how a TEM works? It is most definitely not an immature technology -- it's been around for ~80 years. Science isn't as simple as throwing something under a microscope and suddenly knowing exactly how it works. If it were, we'd already know everything and people such as yourself wouldn't make such asinine comments.
This will probably be modded off topic or the like, but I wanted to just add a random fact. One of the authors of this paper was a post-doc in the same lab as me before he started working at Sandia; we were working on a solar cell material project together.
The paper regarding lithium intercalation is located here.
Sarah Palin was a nobody, just one more Alaskan who said some pretty crazy stuff. ... she's crazy as far as Alaskans go. ... yet America insists of giving her credibility...
My God! I just had a realization -- Liu Xiaobo is Sarah Palin!
First they came for the caps lock key, and I didn't speak because I don't use the caps lock key.
Stoping a terrorist with a bomb at a crowded TSA security checkpoint is too late.
I don't think that using a bomb to stop a terrorist at a crowded TSA security checkpoint is a very good idea either.
[W]hat the market will bare. . .
Those naked markets are pretty awesome.
The discovery of this microorganism that can use arsenic to build its cellular components may indicate that life can form in the absence of large amounts of available phosphorus, thus increasing the probability of finding life elsewhere in the universe.
To me, this is not indication that life can form on other planets with chemical makeups vastly different from that of our planet. This is an organism that formed with phosphorus and could survive with As replacing P. Also, in the experiments, there was not a complete exchange of P and As. These findings cannot be construed to mean that life forms spontaneously without P present -- the argument can be made that P is still necessary for the formation of life.
SO nothing stirs or mixes them?
The solution was stirred.
no electricity is used getting them together?
I don't know what you mean by "getting them together", but a stir plate was used.
separating them?
There was probably no electricity involved in this process; they used standard filter paper and then a 0.5 micron filter. The first process was most likely gravity filtration and the second probably involved a syringe.
Is there anything need to remove excess heat from the process?
The reaction is carried out at 25 degrees Celsius; no, there is no excess heat.
I'm only in my 20s, so most of those years don't count. I was just surprised that you found an area where most people aren't crazy staunch "Republicans".
I am surprised (I live in the south, too) at how many people think she should run.
I lived in the South for 20+ years, and I am not surprised by the amount of people that think she should run.
Hell, Hammurabi's first code of laws included an eye for an eye.
The year is 2010 AD, not the mid-1700s BC. Hammurabi's laws also included such gems as --
The precursor to witch trials: If any one bring an accusation against a man, and the accused go to the river and leap into the river, if he sink in the river his accuser shall take possession of his house. But if the river prove that the accused is not guilty, and he escape unhurt, then he who had brought the accusation shall be put to death, while he who leaped into the river shall take possession of the house that had belonged to his accuser.
Promoted eavesdropping: If conspirators meet in the house of a tavern-keeper, and these conspirators are not captured and delivered to the court, the tavern-keeper shall be put to death.
And also called for incredibly harsh punishments for children: If a son of a paramour or a prostitute say to his adoptive father or mother: "You are not my father, or my mother," his tongue shall be cut off.
Source. I will admit though, that some of the laws appear to be both well-reasoned and well-thought.
So they should be grouped with their own.
What you say here would be correct if we segregated murderers with murderers, rapists with rapists, thieves with thieves, etc. . . This however, is not the case. The line of thinking is much more akin to a thought of "throw them to the wolves."
And we're not calling for the death penalty for the executives that caused the deaths of 11 workers. . .
Who says some people aren't? Also, there are varying penalties for manslaughter and homicide based on the intent.
. . .possibly caused cancer in thousands of cleanup volunteers. . .
Improper protection and unmitigated exposure is what would cause cancer to cleanup crews, not the executives.
. . .and did incalculable damage to the gulf environment and fishery businesses.
I don't know what a fair penalty would be in this case. Monetary compensation of those whose businesses were hurt would be a start. This is being carried out. It's also akin to the eye-for-an-eye law in Hammurabi's code that you like, no?
I think it's a relatively tame response.
And I think it's a relatively barbaric response.
Some at BP needs to do Pound-me-in-the-ass prison time.
The fact that you and many others condone prison justice in the form of the very acts that cause people to go to prison is a brilliant example of how sad our society has become.
Gasoline is one of the more common reactive. . .
Saturated hydrocarbons aren't very reactive.
They're incredibly well engineered.
I'm not trying to be a jerk or say that the price tag is reasonable, but R&D and salaries can build up a pretty hefty bill quickly. Just a thought.
. . . I told my grandmother that computers did not make errors . . .
Except, you know, when doing floating point division.
On the other hand, I send the link to my wife saying "baby, I bet I can convince you to make more pies" -Steve
What a coincidence. I sent your wife the link and told her the exact same thing, too.
-1 Redundant? Really? This was posted before the AC below me, and I don't see a -1 Redundant on their post.
For your comment to make sense, it would need to be the Xbox 180. 360 degrees is a full circle, back to their original statement.
Airports can opt-out of using the TSA for security. Which means, I think, that all of these ridiculous measures can be bypassed.
http://www.washingtonexaminer.com/politics/Amid-airport-anger_-GOP-takes-aim-at-screening-1576602-108259869.html
Too bad we'll never be able to tell rugby players apart with this system!
Dear Lieutenant Dan,
We're sorry for the inconvenience, and we'll try to make it better in the future.
Yours,
The TSA