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Please explain the difference between holography and holograms. I have

  1. Jun 7, 2010 #1
    Please explain the difference between holography and holograms. I have to do an assignment on holography, but should I research holograms aswell.
    Thanks
     
  2. jcsd
  3. Jun 7, 2010 #2

    ZapperZ

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    Re: holography

    Your "research" and assignment should included you trying to find out for yourself first, and not simply hoping to get an outright answer on here. Try to find out what they are, and then, if you find something you do not understand, then ask specific questions on here. Do not ask vague, general questions without giving any indication that you've attempted them on your own.

    Zz.
     
  4. Jun 7, 2010 #3
    Re: holography

    This is my opening paragraph is it good. Is the information I have placed right please check. "Holography is the process of making or the technique of making holograms. It is an advanced type of photography, which allows the image to be seen in 3D. Holograms work by bouncing laser light off an object. There are two major types of holograms, reflection and transmission holograms. Reflection holograms work by reflecting a beam of laser off the surface of the hologram, but they are very expensive to make as they are in very high quality. The second one, transmission holograms make images by sending light through the holograms, these are cheap to make and are usually mass produced. E.g. the holograms in driving license. "
    Thanks
     
  5. Jun 8, 2010 #4
    Re: holography

    Try a dictionary.

    You describe holograms. If you are wondering what a holograph is, it is a document written in the author's own handwriting. Tryhttp://en.wikipedia.org/wiki/Holograph" [Broken]. It took about two seconds to find that.

    It opens with "Not to be confused with holography." So, the principle meaning of "holography" is the practice of making holograms. Your paper on "holograms and holography" is what you are describing in your paper. You might want to mention the confusion with "holograph", a must older word still in use in Law and history.
     
    Last edited by a moderator: May 4, 2017
  6. Jun 10, 2010 #5
    Re: holography

    Oh NO really. But I can't find much information on holography. So I thought if I explain that holograhy is the process of making holograms, then explaining holograms was ok. Can you maybe post some websites I could use for holography. (OF course wikipedia). Thanks
     
  7. Jun 10, 2010 #6

    ZapperZ

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    Re: holography

    It would be nice to know what you have looked at first because, once again, it will show that you've made an effort. I'm still not sure what exactly you are going to write on, and what you are having problems with.

    So at the risk of spoon-feeding you the answer (which I truly hate to do), I will simply give you a popular fall-back website that has an entry on this. Please bookmark the hyperphysics website from now on and try and use that first.

    http://hyperphysics.phy-astr.gsu.edu/hbase/optmod/holog.html#c1

    We have so many resources available at our fingertips nowadays (you don't want to hear stories about the old days where we have to walk several blocks to get to a library, in the cold of winter, uphill and in barefeet, just to look up on a subject). There isn't much of an excuse anymore for someone to come in here completely blank cold on a topic. It is more effective (and a more effective use of this forum) when we tackle a specific issue or problem, rather than broad, vague topic.

    Zz.
     
    Last edited: Jun 10, 2010
  8. Jun 10, 2010 #7
    Re: holography

    Holography is to holograms what Photography is to photos.
     
  9. Jun 12, 2010 #8
    Re: holography

    Thanks guys. I just needed to know if holograms was ok in a holography subject. My assignment is on holography, but I thought it had to be exactly on it. SO I guess I can use holograms in this aswell as holography is the process of making holograms.
     
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