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03/30/2006 05:22:18 AM · #1 |
A road mirage is also caused by refraction .. .
and so is a Rainbow |
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03/29/2006 11:55:44 PM · #2 |
Originally posted by srdanz:
Whenever light ray passes from one medium to another (other than at the right angle or 0 angle of incidence) the refraction happens. See google for refraction factors (from vacuum to other matter) for different materials. Theoretically, the light that comes from the sun travels through vacuum and when it enters our atmosphere it bends.
SO, long story short: yes, shooting anything in the air is the example of refraction.
However, I'm willing to bet that DPC will be looking for something more obvious - you won't be able to cry 'foul' for the unwarranted DNMC comments and worse, DNMC scores.
If you care, shoot something that screams 'refraction' at the user, don't try to force the issue with the title. It won't go far...
-Serge |
You may be correct about the voters; the challenge is almost surely going to be dominated by glossy, shiny, crisp, detailed examples of refraction setups. However, as far as "obvious" goes, sunsets and sunrises are the most obvious and familiar examples of the phenomenon of refraction that we encounter regularly. That's just a fact. Rainbows are less common but more extraordinary and equally obvious.
Robt.
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03/29/2006 11:46:47 PM · #3 |
Whenever light ray passes from one medium to another (other than at the right angle or 0 angle of incidence) the refraction happens. See google for refraction factors (from vacuum to other matter) for different materials. Theoretically, the light that comes from the sun travels through vacuum and when it enters our atmosphere it bends.
SO, long story short: yes, shooting anything in the air is the example of refraction.
However, I'm willing to bet that DPC will be looking for something more obvious - you won't be able to cry 'foul' for the unwarranted DNMC comments and worse, DNMC scores.
If you care, shoot something that screams 'refraction' at the user, don't try to force the issue with the title. It won't go far...
-Serge |
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03/29/2006 11:28:32 PM · #4 |
Originally posted by STEINR:
so, would a sunset, or sunrise be considered a refraction of light? |
The colors at sunrise and sunset are DEFINITELY due to light refraction through the atmosphere. They are classic examples of atmospheric refraction. So are rainbows and haloes around the moon/sun.
R.
Message edited by author 2006-03-29 23:28:54.
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03/29/2006 10:04:27 PM · #5 |
Originally posted by STEINR:
so, would a sunset, or sunrise be considered a refraction of light? |
A rainbow would.
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03/29/2006 10:03:54 PM · #6 |
Don't worry about me....I only shoot good refraction shots for reflection challenges! LOL!
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03/29/2006 09:56:04 PM · #7 |
Originally posted by JayWalk:
Hmmmmm... I would really like to try something a bit new with challenge, but I have a feeling that a water drop or fish net is going to take the prize.
Grrrrr.... what to do, what to do???? It wouldn't be such a big deal, but I don't want to get knocked out of the brackets.
Maybe I should just stick with toys!
:/ |
I actually wouldn't be supreised that because there will be so many of those shots and that might actually not take the prize. I might be wrong though |
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03/29/2006 08:54:39 PM · #8 |
Hmmmmm... I would really like to try something a bit new with challenge, but I have a feeling that a water drop or fish net is going to take the prize.
Grrrrr.... what to do, what to do???? It wouldn't be such a big deal, but I don't want to get knocked out of the brackets.
Maybe I should just stick with toys!
:/
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03/29/2006 01:42:24 PM · #9 |
Originally posted by ltsimring:
Originally posted by DrAchoo:
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I wonder if people would be physics-literate enough to declare this kind of shots DNMC (diffraction is not refraction)? :) |
Sometimes, it is refraction which causes diffraction (oil drops, crystals,...). So I hope the DNMC people will take a little refreshment course in physics over the week end ;-)
My personal favourite:
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03/29/2006 01:26:00 PM · #10 |
Originally posted by STEINR:
so, would a sunset, or sunrise be considered a refraction of light? |
Sure, it would get crushed in the voting, but refraction is what causes sunsets to be red, or the sky to be blue. Simple obvious and very pretty is the direction to head toward if you want to woo the voters IMHO. Any reflection even though it uses refraction will get DNMC votes from some. I think I am talking myself over into toy land.
Message edited by author 2006-03-29 13:28:36. |
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03/29/2006 11:54:50 AM · #11 |
so, would a sunset, or sunrise be considered a refraction of light?
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03/29/2006 11:43:43 AM · #12 |
Originally posted by ltsimring:
Originally posted by DrAchoo:
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I wonder if people would be physics-literate enough to declare this kind of shots DNMC (diffraction is not refraction)? :) |
Nice one! I stand mostly corrected. Perhaps I can escape by calling attention to the plastic coating used to protect the pits. ;) But you are correct and it's too early here, this is a good example of diffraction, not refraction. |
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03/29/2006 11:31:17 AM · #13 |
Originally posted by ltsimring:
I wonder if people would be physics-literate enough to declare this kind of shots DNMC (diffraction is not refraction)? :) |
It's pretty and shiny and would do very well! |
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03/29/2006 11:29:38 AM · #14 |
Originally posted by DrAchoo:
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I wonder if people would be physics-literate enough to declare this kind of shots DNMC (diffraction is not refraction)? :)
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03/29/2006 11:20:06 AM · #15 |
Originally posted by Konador:
I dunno about other people but I learned what refraction was when I was about 8, so hopefully most people will 'get it' :) |
I guess that is what I worry about. They might vaguely remember the prism from Grade 3, and vote everything down that doesn't have a rainbow coming out the other side. |
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03/29/2006 11:17:39 AM · #16 |
I dunno about other people but I learned what refraction was when I was about 8, so hopefully most people will 'get it' :)
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03/29/2006 11:15:13 AM · #17 |
Will there be oodles of people who have no idea what refraction is?
I'm not trying to be mean, just wondering.
Not everybody reads forums threads and not everybody bothers to google and learn, either *sigh*. |
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03/29/2006 11:13:28 AM · #18 |
My fav...
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03/29/2006 11:04:35 AM · #19 |
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03/29/2006 10:54:52 AM · #20 |
Originally posted by Rikki:
"Aaarrgghhhhh! My legs! My legs!" |
ROFL Rikki, you crack me up!
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03/29/2006 10:52:44 AM · #21 |
Originally posted by messerschmitt:
also a kind of refraction i guess |
not a kind of ..... THIS IS REFRACTION
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03/29/2006 08:15:53 AM · #22 |
Ok, I get it!!! But whether I can pull one off is another subject completely.
Toys?? Hmmm - I predict tons of rubber ducks and Barbies.
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03/29/2006 08:06:55 AM · #23 |
also a kind of refraction i guess |
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03/29/2006 06:42:03 AM · #24 |
So it's, ummm, the "Rikki Blue and Orange Challenge"??
:-)
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03/29/2006 05:30:49 AM · #25 |
Just use a bad lens. Chromatic aberration is a result of refraction.
Come to think of it any photograph is a result of refraction, so it's an open challenge !
Message edited by author 2006-03-29 05:35:10.
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