Weekly Photo Challenge-Refraction

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My contribution for this week’s challenge…

Refraction

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According to Google the definition of refraction is as follows.

the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely
through the interface between one medium and another or through a medium of varying density.
  • change in direction of propagation of any wave as a result of its travelling at different speeds
    at different points along the wave front.
  • measurement of the focusing characteristics of an eye or eyes.

This roughly coincides with my school science

memories of refracted light…

“…when light passes through glass or water it bends

 according to the density of the water or glass.

However, when it exits the glass the light beam is

parallel to the original source beam…”

rainbow_0333We often look up ‘up’ at rainbows, however,

this is the first time I was able to look ‘down’ at a rainbow.

This rainbow was caused as light was refracted as it passed

through the spray caused by water tumbling over Victoria Falls, Zimbabwe.

I must admit that I cannot see all the colours of a rainbow…

but I think it qualifies as a rainbow and refracted light.

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Cee-Black-White Challenge-Reflections-or-Shadows

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Cee’s Black and White Challenge:

Reflections & Shadows.

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A variety of reflections and shadows this week.spoonbill_126

A spoonbill and reflection

boabab_0738Lekhubu Island’s boabab trees in shadow at sunset.

sunset-lekhubu_0766I think the boababs in black and white at sunset,

create a better effect than the coloured version…

sunrise lekhubu_0856and a black and white Lekhubu sunrise is as spectacular.

bird_0008The early morning sun on this Kalahari Scrub Robin

creates a long shadow, at Khubu Island

okavango-delta_0594

The sun was getting low in the sky when we flew over

the Okavango Delta and created some beautiful reflections…

okavango-delta_0441and the elephants and trees cast extremely long shadows.

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Cee’s Black & White: Reflections & Shadows

Black_White

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