Recent content by plisics

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    Light Phenomena - shadows within shadows

    Solution : ) lol, been quite long since this thread has had a new post in it. I juz received an email asking if I could explain the phenomena, made me realize that I just said I figured it out, but never really posted the solution/ conclusion. so here it is (with help from prasannapakkiam's...
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    Light Phenomena - shadows within shadows

    do attachments ever get approved here? your previous image attachment is still pending approval... Anyways, I think I understand how it works, I read up on diffraction and other properties of light, and what's happening in the image does have a simple explanation... all linked to diffraction...
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    Light Phenomena - shadows within shadows

    Thanks for sending me the image, now I know what you're saying, but I'm a bit confused when you said "because of the way waves tend to spread out in the direction they travel in, when an orpaque obstacle arises, they spread in a different direction" Waves spread in a different direction when...
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    Light Phenomena - shadows within shadows

    hmm... is there any other way I can view your diagram? Right now it still says "Attachment Pending Approval"... Maybe email it to me? unicoated@yahoo.com if you have the time Thanks lots :smile:
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    Light Phenomena - shadows within shadows

    I observed some stranger things, and you guys have evry reason to doubt this, but I'll post it anyway: I illustrated what I saw with photoshop: http://www.inaneasylum.org/users/Photoshag/Default/shadows.jpg If you look closely at the first picture above, you'll see that the shadow...
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    Light Phenomena - shadows within shadows

    Oh ok, I get what you mean, but I think the diffraction here works in quite a different way. The "sticked shadow" is not caused by a slit, because the object closer to the light source has to cast a shadow on the 2nd object (further from the light source) before any sticking would occur. That...
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    Light Phenomena - shadows within shadows

    Sorry, I'm not quite sure what you mean. Are you saying that the shadow within the other shadow is caused because of light bouncing off the surroundings? So do you think that the area at which the [elongated part of the circular shadow is] is at the place between the gradients of the two...
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    Light Phenomena - shadows within shadows

    Yup, what you reckoned was right, you figured it out already? I think I know what's going on under normal circumstances, with strong light, (just to note I observed most of the stuff with shadows cast from sunlight), but what's captured in the picture had me stumped. The first picture on top...
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    Light Phenomena - shadows within shadows

    I just tried out your suggestion, and what I saw was quite different. When the distances were small, meaning that both objects were close to the floor (the surface upon which the shadows were cast), the shadows cast were sharp, and naturally the effect was less visible. When the distance...
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    Light Phenomena - shadows within shadows

    Hey, thanks for the reply, could you elaborate more about how the diffraction works, I still don't understand. Is diffraction what caused the shadow in the picture to be elongated? It seems weird that when a shadow enters another shadow it stretches in such a way. How about if the two shadows...
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    Light Phenomena - shadows within shadows

    I'm new to the forum, so please guide me along. (This is my first post)Homework Statement This isn't really part of a homework assignment, just something I observed, and am puzzled as to why it occurs: Shadows seem to stick to each other, as illustrated in the picture below...
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