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An Introduction to Rainbows
Rainbows as Superimposed Cones of Colour
Rainbows as Superimposed Disks of Colour
Drawing Rainbow Diagrams
Intensity of Rainbow Colours
The Position of Each Raindrop Determines its Colour
The Position of Raindrops Determine Their Colour
Sunlight as Light Source
The Path of Red Ray Through a Raindrop in Detail
Reflection and Refraction in a Raindrop
Dispersion of White Light in a Raindrop
Reflection and Refraction in a Raindrop
Angular Distance Determines Raindrop Colour
The Apparent Position of a Rainbow
The Angle Between Incident and Refracted Rays
Rainbows Appear as Bands of Spectral Colour
The Higher the Sun, the Lower the Rainbow
The Lower the Sun, the Higher the Rainbow
Sun, Observer and Rainbow Share a Common Axis
A Rainbow is an Optical Phenomenon
Rainbows Seen From the Ground Form an Arc
Rainbows Seen From the Air Form a Circle
How to See a Rainbow
Take a Photo of a Rainbow
Why an Object Appears Red in Sunlight
Wavelengths from Red to Violet
The Visible Spectrum
Facts about White Light
Bands of Colour from Red to Violet
Wavelengths Between Red and Violet
Continuous Colour from Red to Violet
Comparing Wavelengths of Red and Violet
Comparing Frequencies of Red and Violet
Why an Object Appears Magenta in Sunlight
Sensitivity of Eye to the Colour Spectrum (svg) 11000-0-A-BL-EN
Response of the Cone Cells in the Human Eye to Colour (svg) 11010-0-A-BL-EN
Combining Red, Green and Blue Light
Spectral Colour and the RGB Colour Model
Spectral and RGB Colour
The Human Eye and RGB Colour
Red light Projected onto a Dark Surface
Green Light Projected onto a Dark Surface
Blue Light Projected onto a Dark Surface
Red, Green and Blue Lights Projected onto a Dark Surface
Overlapping Beams of Red and Green Light Make Yellow
Overlapping Beams of Green and Blue Light Make Cyan
Overlapping Beams of Blue and Red Light Make Magenta
RGB Colour and Spectral Colour
The Law of Refraction Explained
Chromatic Dispersion of a Ray of White Light
Chromatic Dispersion of Red Green and Blue Wavelengths
How to Use the Refractive Index of a Medium
Prism Splits a Ray of Light into Spectral Colours (svg) 06700-0-A-BL-EN
Long Waves to Short Waves
Why an Object Appears White in Sunlight
Why an Object Appears Orange in Sunlight
Why-an-Object-Appears-Green-in-Sunlight (svg) 02000-0-A-BL-EN
Why an Object Appears Blue in Sunlight
Why an Object Appears Violet in Sunlight
Why an Object Appears Yellow in Sunlight
Why an Object Appears Cyan in Sunlight
Why an Object Appears Transparent in Sunlight
Using RGB Colour to Mix Wavelengths of Light
Refraction and Dispersion of Wavelengths of Light
Spectral Colour Model
RGB Additive Colour Model
RGB Colour Wheel with 6 Colours
RGB Colour Wheel with 6 Colours
Overlapping Beams of Cyan, Magenta and Yellow
Combining Different Wavelengths of Light to make White
Adding RGB Colours between Primaries
RGB Colour Wheel with 3 Colours
RGB Colour Wheel with 18 Colours
RGB Colour Wheel with 18 Colours
RGB Colour Wheel with 30 Colours
RGB Colour Wheel with 30 Colours
RGB Colour Wheel with 102 Colours
Colour-Wheel-with-102-Colours (svg) 05300-3-A-BL-EN-RGB
RGB Colour Wheel with 196 Colours
RGB Colour Wheel with 196 Colours
HSB Greyscale: Wedges
1530 RGB Colours
HSB Additive Colour Model
RYB Subtractive Colour Model
256 RGB Colours: Cyan to Blue
256 RGB Colours: Yellow to Green
256 RGB Colours: Green to Cyan
256 RGB Colours: Red to Yellow
Paths of Red Green and Blue Rays in a Raindrop
How to See a Rainbow
Spectral Colour
Making Spectral Colour using the RGB Colour Model
CMY Subtractive Colour Model
HSB Colour Model: Hue, Saturation and Brightness
Saturation in Sunlight
RGB Colour Model: Saturation
RGB and HSB Colour Values
HSB Colour Model: Hue and Saturation
HSB Colour Model: Hue and Brightness
HSB Colour Model: Hue and Saturation
HSB Colour Model: Hue and Brightness
RGB and HSB Colour Values
Hue and Greyscale
RGB Colour Wheels with 3 to 102 Colours
Colours Between RGB Primaries
Adding Colours Between RGB Primaries
Mixing Primary Colours in Different Proportions
Mixing RGB Primary Colours
Mixing RGB Primary Colours
HSB Colour Model: Disks
HSB Colour Model: Disks
HSB Colour Model: Wedges
HSB Colour Model: Wedges
Greyscale: Disks
Greyscale: Disks
256 RGB Colours: Blue to Magenta
256 RGB Colours: Magenta to Red
1530 RGB Colours
256 RGB Colours Between Red and Yellow
RGB Colour Picker: Red to Yellow
256 RGB Colours Between Yellow and Green
RGB Colour Picker: Yellow to Green
256 RGB Colours Between Green and Cyan
RGB Colour Picker: Green to Cyan
256 RGB Colours Between Cyan and Blue
RGB Colour Picker: Cyan to Blue
256 RGB Colours Between Blue and Magenta
RGB Colour Picker: Blue to Magenta
256 RGB Colours Between Magenta and Red
RGB Colour Picker: Magenta to Red
HSB Greyscale: Wedges
Facts about the Sun
RGB Colour Wheel with 3 Colours
Facts about Sunlight
Features of Electromagnetic Waves
Wavelength and the Electromagnetic Spectrum
Frequency of Electromagnetic Waves
Refraction of a Ray of Light Towards the Normal
Refraction of a Ray of Light Away from the Normal
Refractive Index Explained
Reflection of a Ray of Light
Light strikes Curved Surface in Line with the Normal
Ray of Light Strikes Surface at a Right Angle
Refraction and Dispersion of a Ray of White Light
Electromagnetic spectrum
Actual and Observed Position of an Object in Water
Comparing Wavelengths: Radio to Gamma
Refraction of Light Away from the Normal
Refraction of a Ray of Red Light
Reflection and Refraction at a Curved Boundary
Sunlight Reflects off a Fish in Water
Electric and Magnetic Properties of Light
Wavelength and Speed of Light in Different Materials
Calculating the Frequency of Electromagnetic Waves
Wavelength, Frequency and Energy Compared
Refraction, Reflection and Total Internal Reflection
Refraction of Light Towards the Normal
Human Eye in Cross Section
Human Eye in Cross Section
Retina of the Human Eye in Detail
Human Eye Eyeball and Retina