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Mary
formerly Euan!
formerly Euan!
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PostSubject: Question   Fri Apr 06, 2012 6:05 pm

Anybody see what is strange about this picture and know why??? Smile




xx
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james
Sheep Master
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PostSubject: Re: Question   Fri Apr 06, 2012 7:19 pm

Yes and yes but not complaining about the content lol
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sheelagh
Dive Master & AMED
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PostSubject: Re: Question   Fri Apr 06, 2012 8:16 pm

Think you need to do a head count first!!
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jason_242
Instructor
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Humor : Has its ups and downs...

PostSubject: Re: Question   Fri Apr 06, 2012 9:13 pm

Refraction....simples
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Dobs
PADI Assistant Instructor
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Humor : Anything funny

PostSubject: Re: Question   Sat Apr 07, 2012 8:20 am

Pains me to say it, Jason is correct. As water is thicker than air light travels slower through it causing it change it's angle of spread. This is know as refraction. Comprehensive school physics. Tin pot instructors!!! Except for those returning deported ones of course!!!
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jayne65
Instructor
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PostSubject: Re: Question   Sat Apr 07, 2012 10:58 am

ha ha deported!!!! love it!
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jason_242
Instructor
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Humor : Has its ups and downs...

PostSubject: Re: Question   Sat Apr 07, 2012 9:57 pm

If in doubt ask an instructor.....

As for deported Suspect I knew you guys were missing me so thought I'd give you all a treat and come back wave
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jayne65
Instructor
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PostSubject: Re: Question   Sun Apr 08, 2012 1:02 am

ha ha ha ha ha deported
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jason_242
Instructor
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Humor : Has its ups and downs...

PostSubject: Re: Question   Sun Apr 08, 2012 10:17 am

NTR ?
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jayne65
Instructor
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PostSubject: Re: Question   Sun Apr 08, 2012 11:44 am

no comment
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jason_242
Instructor
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Humor : Has its ups and downs...

PostSubject: Re: Question   Tue Apr 10, 2012 10:41 am

What no wise quip answer?
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jayne65
Instructor
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PostSubject: Re: Question   Tue Apr 10, 2012 11:22 am

nope, i wasn't the one who was deported for bad behaviour
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Geoff123
BSAC INSTRUCTOR
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Humor : Bernard Manning and Chubby I think

PostSubject: Re: Question   Tue Apr 10, 2012 1:09 pm

"Pains me to say it, Jason is correct. As water is thicker than air light travels slower through it causing it change it's angle of spread. This is know as refraction. Comprehensive school physics. Tin pot instructors!!! Except for those returning deported ones of course!!!"

Does this mean it speeds up again when it comes out the other side? I didn't know refraction was to do with the speed of light - learn something every day.
Could I ask Mr. Bernd to give a definative answer please.
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Bent
BSAC Advanced Diver
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Humor : Ein Taucher der nicht taucht taugt nichts

PostSubject: Re: Question   Tue May 08, 2012 4:14 am

cant say it better than wikipedia:
Refraction is described by Snell's law, which states that for a given pair of media and a wave with a single frequency, the ratio of the sines of the angle of incidence θ1 and angle of refraction θ2 is equivalent to the ratio of phase velocities (v1 / v2) in the two media, or equivalently, to the opposite ratio of the indices of refraction (n2 / n1):
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Andy W
always moist & wet
always moist & wet


Humor : And All Of That !!!!

PostSubject: Re: Question   Tue May 08, 2012 2:02 pm

Bent You posted this just seconds before I was about to give exactly the same info.



Twisted Evil Twisted Evil Twisted Evil Twisted Evil
wave wave wave wave wave wave


Last edited by Andy W on Tue May 08, 2012 3:40 pm; edited 1 time in total
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jayne65
Instructor
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PostSubject: Re: Question   Tue May 08, 2012 3:19 pm

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sheelagh
Dive Master & AMED
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PostSubject: Re: Question   Tue May 08, 2012 5:35 pm

It took Bent 4 weeks to find that answer! Thought you'd have been a bit quicker Andy
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