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DrP

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Posts posted by DrP

  1. During my Ph.D. (about 10 years ago!) I made some 100 nm polymers stripes on a Si substrate using e-beam lithography. My Wife for her Ph.D. makes 10 nm dots and spheres by polymerisation. So between us we are experts at making nana dots and stripes! :)

     

    Very useful for someone I'm sure!! :D

  2. A real hard one (which doesn't sound hard at first untill you think about it) would be the universal translator! (in star trek) Sounds easy if you know the languages to translate - but could a computer translate a NEVER BEFORE heard alien language? Answer is no way, as they have no starting point to calibrate from - doesn't matter how good the technology, a never heard before lanuague comprised of gutteral sounds and clicks could not be translated to English instantly by a computer. However, allowing them their artistic licence - it is still a great idea and a cracking series. :)

  3. You divide the distance travelled over the time taken. ..errrrr.... OK I finally get it - you mean reading a book fast, not velocity measurement! :doh:

     

    Depends - you may get a snippet from a research paper if you need to scan it quickly to see if anything interesting is in it, but I doubt you can pass a degree buy being lasy enough to just speed read through a text book.

  4. In fact, your question "what is the speed of time?" is alot more complicated as time doesn't have 'speed' because speed is measured as a distance travelled over TIME!

     

    That is what I ment by this really.

  5. We equate it to the frequency and vibration of a quartz crystal for most watches. We also have the earth revolving around the sun as a 'standard' measure for time.

     

    second (s): In the International System of Units (SI), the time interval equal to 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom.

     

    Going further:- time and space are linked by relativistic means so, at speeds close to C time dilates........... (look up relativity)

     

     

     

     

    In fact, your question "what is the speed of time?" is alot more complicated as time doesn't have 'speed' because speed is measured as a distance travelled over TIME!

     

    Anyway - here are some definitions of time which may (or not) help as your question goes alot deeper than you might think.

    http://searchcio-midmarket.techtarget.com/sDefinition/0,,sid183_gci552553,00.html

    http://en.wikipedia.org/wiki/Time

    http://www.m-w.com/dictionary/time

    http://whatis.techtarget.com/definition/0,,sid9_gci524077,00.html

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