Atmospheric
Optics

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 Feather Iridescence

 Moiré Patterns & Fringes

 Atmospheric Optics Refreshment

 Oval & Not So Oval Aureoles

 A Year of Sunsets

 Stockholm Spring Sunsets

 Droplet Caustics

 Moon Illusion, Ireland

 Oval Star Aureoles, M42

 Ice

 Window Reflections

 The Refracted Otter

 Stress & Strain

 Blue & White Sky

 Sea Shell Colours

 Tubes

 Prismatic Doors

 Bubbles

 Precious Opal

 Peacock Colours - Photonic Crystals

 Sea Caustics

 Viking Sunstone?

 Book - Polarized Light in Nature

 Rings of Two Kinds

 Spider Web Light Rings

 Quételet rings from Venus & Jupiter

 Butterflies & Waves

 Prism HD

 Sub-Anthelic Diffraction Pillar

 Meat Iridescence

 Indoor Rainbows

 Spider Silk Colours

 Sundog Reflections - Skypools

 Road Sign Optics

 La Cassiopea & Caustics

 Moonlight Rays, Stars, Lightning

 Kitchen Optics & Light Rings

 Contrast Illusion

  Bent Glitter Paths

  Colours?

  Strider Caustics

  Canine Skies

  Fluctuating Star Colours

  Adularescence

  Plasma - Lightning Spectra

  Linear Hole Punch

  New Halo Book

  Alphabet Soup

  Bubble Optics

   Frost Dendrites

   Of still ponds and dusty windows

   Protractor Strains

   Ice Crystal Colours

   Skypools on Walker Pond

   Rime & Hexagons

   Bucket Ice

   Of Bikes and Spiders

   Whale Caustics

   Trout & Optical Catastrophes

   Multiple Hole Punches

   Lighthouse Glasses

   Linear Hole Punch?

   Scientists & Sea Shells

   Norway Lenticular Clouds

   Fall Streaks

   Ice

   Butterflies & Bookcases - Structural Colour

   Labradorescence - Structural Colour

   Thin Film Interference

   Water Shadows

   Quetelet Rings - Hungary

   Ice is blue

   Algal Optics

   Frost

   Breaking the Ice - Interference in fissures

   Petal Caustics

   Church Window Patterns

   Fern frost on car bodywork

   Finland Snowflakes

   Snowflakes

   Birefringence in pond ice

   Rime

   Window Frost

   Sirius

   Crossed polarisers and frost

   Fern Frost

   Snowflake Symmetry

   Ice Colours

    Two for One

    Not the Earth from Space

    Algal Optics

    Ice Colours

    Kitchen Optics

    Cloud Colours

    Pennsylvania Hole Punches

    Sunset Virga

    'Bursting' Mammatus

    Monster Lenticular

    Reflection Caustics

    Glaciating Altocumulus

    Hole Punch Cloud & Halo

    Virga/Fall Streaks

    Snow Crystals

    Birefringence & Airplane Windows

    Art & Optics

   Teatime Optics

    Hoar Frost Crystals

    Chromatic Glitter

    Venus Corona

    Sublime Iridescence

    Corrugated shadows

    Why Pink?

    Halos in a bottle

    Over the horizon mountains + green flash

    Kasotochi

    Wine Glass Caustics

    Caustics

     Martian Opposition Glow

    Rainbow Making Machine