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  1. Re:That's impossible! on Material Tougher Than Diamond Developed · · Score: 1

    There are more information about hard materials, relationship of stiffness and hardness at this wikipedia article.

  2. Re:What low K will the Penryn use? on Intel 45nm Fab Process Launched And Penryn Preview · · Score: 1

    This article http://www.eetimes.eu/production/196701258 implies that the Black Diamond can reach K value of 2.4, but the mechanical properties is even worse than porous SSQ filem. Thus Aurora should be able to reach 2.4 too.

  3. Re:What low K will the Penryn use? on Intel 45nm Fab Process Launched And Penryn Preview · · Score: 1

    It looks like a new generation of Aurora. I guess they must introduced kind of pores in the Aurora. Or something else, I can't imagine the doped silicon oxide alone can reach such low K. But I also can't imagine how to make pores in Aurora too. Or maybe they simply figured out a way to keep the dielectric value low at small scale. Comparing to the porous MSSQ used in AMD/IBM 45nm product, I bet Aurora is better in reliability.

  4. What low K will the Penryn use? on Intel 45nm Fab Process Launched And Penryn Preview · · Score: 1

    TFA didn't mention anything about the Low K part, anybody has any information? Porous MSSQ? Porous SiLK? Porous Black Diamond (if it exists)?

  5. Re:Iceland on MIT-Led Study Says Geothermal Energy Is Viable · · Score: 1

    More than half of Iceland's energy is provided by geothermo. http://www.or.is/media/files/country.pdf

  6. Re:What? on Chinese Prof Cracks SHA-1 Data Encryption Scheme · · Score: 1

    Professor Wang Xiaoyun's publications Shandong University are listed at here. Most SHA-1 and MD5 papers are downloadable, read if you have interests.

    She is working for Tsinghua University now.

  7. Google wants to be YOUR Internet. on Google's Sinister(?) Plans · · Score: 2, Funny

    Does that mean the blue E will be replaced by a blue G? Yeah, I know what is Internet, the blue E...

  8. Re:'Nano' is routinely abused here on Nanobatteries — Safer By Design · · Score: 1

    There should be at least one dimension in nanometer scale for the ting to be called "nano" something. Things in hundreds of of nanometer can be called "mesoscale". And things in microns are called microscale. TFA is shameless.

  9. Re:What's the efficiency of the fuel cell? on Ford Airstream Electric Concept Car · · Score: 1

    It doesn't run on foreign oil, is this good enough? BTW, even you are running on ethanol or bio-diesel, you still need oil to produce fertilizer.

  10. Re:Uhhh Hello Earth to Detroit on Ford Airstream Electric Concept Car · · Score: 1

    When you are making sodium hydroxide by electrolyzing salt water, you get hydrogen too. So why don't use this hydrogen?

  11. C/C++ on AJAX May Be Considered Harmful · · Score: 1

    When vulnerabilities of C/C++ stop people from using C/C++, this may happen.

  12. Re:Such an environmental nightmare on World's Largest Wind Farm Gets Green Light · · Score: 1

    maybe he/she was talking about fusion.

  13. Re:The Problem with Wind Energy on World's Largest Wind Farm Gets Green Light · · Score: 1

    I think they will store energy when the wind is strong and get the stored energy out when the wind is weak. There are many ways to store energy, my question is which one do they use and why?

  14. Something need to discuss on Hydrogen Won't Save Our Economy · · Score: 1
    Several points I feel uncomfortable with in this paper. I think may be some body would like to discuss at /.
    1. Why begin with Renewable AC electricity? Can the solar panel give me AC?
    2. Electrolysis of salt water is mostly used to produce sodium hydroxide, chlorine... And hydrogen is only a by product. Also we don't need fresh water to produce hydrogen.
    3. Is that battery charging efficient used in the graph high? It says 85% efficient. I remember the battery used in hybrid cars has an efficient around 70% or lower. I am not very sure about this number, correct me if you have source.
    4. How long a battery can be charged? Does time cost money?
    5. How many times a battery can be charged?
    6. How accurate the energy in the battery can be measured? Will the battery powered car behave like a 2 years old Dell notebook?
    7. How the battery is affected by temperature and humidity?
    8. How do we dispose wasted batteries? How much it cost and who will pay for it?
    9. Are the batteries made by Sony?

    Also one interesting point is that more fresh water is used to produce 1 gallon of gas than 1 kilogram of hydrogen, which have equivalent amount of energy of 1 gallon of gas.

  15. I see two products making money in my Xtal ball on Microsoft drops VBA in Mac Office 2007 · · Score: 3, Funny

    One is to translate VBA in Office to Applescript and the second one is to translate Applescript to VBA.

    Damn, I don't know either of them and I am so busy reading /. that I don't have time to learn, otherwise, I am going to be rich.

  16. Not at on Apple Releases 31 Security Fixes · · Score: 1

    I think you forgot to type "Not at".

  17. Re:Not enough 'nano' prefixes on Nanoknives To Be Used to Cut Cells · · Score: 3, Informative

    Depends on the size of the molecule you are referring, "molecular scale" can be ranged Angstrom to hundreds of micron.

  18. Re:Obligatory on Nanoknives To Be Used to Cut Cells · · Score: 5, Interesting

    Actually they did. The art of cutting thin slice is called microtomy. Glass knife and diamond knife are used for microtomy. The advantage of glass knife is cost, the glass cost almost nothing. But glass knife doesn't last long, it gets blunt after 20 or 30 cuts. Also glass knife become blunt even you do nothing with it because glass is essentially fluid and the sharp edge has huge surface tension. Diamond knife lasts forever if you don't do anything wrong with it. But the diamond knife is pricey, a single knife can cost several thousand of dollars.

    I have been doing microtoming for years. But I don't see how could this can be used to replace diamond knife. Basically we need to trim the sample to 0.1x0.25mm block and cut the block. This is small but still 100um. I at least need a knife of 150um wide to work on this. Nanotubes as long as 150um are not so well available at least for now. Then the knife is a 150um long 10nm thin wire, which I can not see with my eyes. How do I know the wire is stretched? And if it is stretched, during the cutting, the temperature and change from room temperature to -90 degree C. So how do I handle the thermal expansion? Also the problem troubled me mostly is how do I handle the section? When I am using a glass or diamond knife, the section and block fall to different sides of the knife, then I can use special tools to pick the section up. But when the wire cut through the sample, the section sticks back to the block. Also how much the wire knife cost and how long it can last? I can resharpen a 3mm diamond knife for $1500 after I made enough mistakes on it, which can be 5 or 10 years.

    However, I really think this thing can be used as a wire saw to make MEMs.

  19. Re:I smell nanoparticles... on Facing the Dangers of Nanotech · · Score: 1

    Can't you see that those magnetic nanoparticles are a great idea to manipulate brain function? Where is my tin foil hat...

  20. Re:I smell nanoparticles... on Facing the Dangers of Nanotech · · Score: 1

    I am not familiar with the blood system of bone. But it should work.

  21. Re:Nanomaterial == molecules on Facing the Dangers of Nanotech · · Score: 1

    Even worse again, almost all of the land on the Earth are covered with nano-layer or nano-needle like stuff named clay. And those black heart constructors even use the clay product to build houses!

  22. Re:I smell nanoparticles... on Facing the Dangers of Nanotech · · Score: 4, Interesting

    Great idea to treat brain cancer too.

    The idea is to modify certain magnetic nanoparticles so that they can attach to the cancer cells. Then by applying a vibrating magnetic field, we make make the nanoparticles vibrate and generate heat. As a result, the cancer cells get killed and the amount of affected good cells is very small.

    But, I think I need a tin foil hat.

  23. Re:Units on Report Blasts "Peak Oil" Theory · · Score: 1

    The reason behind this is that 1 kilogram of Hydrogen contains same amount of energy of 1 gallon of gas.

  24. some kind of fruit company on Apple Orders 12 Million iPhones · · Score: 1

    "some kind of fruit company"--Forrest Gump

  25. Re:OK... Narrow focus... on Report Blasts "Peak Oil" Theory · · Score: 1

    Solar, wind and geothermal.

    Electricity can be generated from solar, wind and geothermal power plant. Then the electricity can produce hydrogen from water. Then hydrogen can be transferred in trucks and "tubes", I love this word, and yes, there are hydrogen pipelines in America. And the hydrogen then can be filled in cars and trucks.

    You may ask why don't we directly charge the battery in the cars and get rid of the hydrogen? But you need to ask three more questions.

    1. How much time is it needed to fully charge an empty battery or do I need to stop for 10 hours very 400 miles?
    2. How many times can a battery be charge and decharged or do I need to replace the battery every year?
    3. And how accurate can the machine tell me how much energy available in the battery or is it possible I run out of battery 30 miles south of Phoenix and the car thought it had enough energy?

    Alcohol and bio-diesel have very large environment impact and oil dependent. When we grow corn or soy, we need fertilizer and the fertilizer is from oil. Also the energy out put and energy input ratio is low, I remember a number of 1.2 while the wind power has a number of 60.