Friday, May 13, 2022

Iridescent clouds

Iridescent clouds

Location           : Top of Saddleback Mountain, Kiama, NSW, Australia
Date                  : 2022-05-07  11am
Photographers: 1st one - Lisa Li.  Rest - Paul.

An iridescent cloud is an uncommon phenomenon, the result of diffraction ... small droplets of water or small crystals of ice individually scattering light.

If the small droplets/crystals are of similar size, their cumulative effect is seen as iridescent colours. The cloud must be optically thin, so that most rays encounter only a single droplet. Iridescence is therefore mostly seen at cloud edges or in semi-transparent clouds.

Here is another iridescent cloud I photographed 7 years ago.
Location: Gungartan Mountain, Kosciuszko National Park, NSW, Australia
Date       : 2015-03-13

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Sunday, May 8, 2022

Multitasking at my old age

At my old age, I'm good at multitasking.
I can listen, ignore and forget all at once.

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Tuesday, May 3, 2022

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