To create a rainbow

Chapter 1

The anatomy of a sunbeam

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Chapter 2

How to make your own rainbow

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Chapter 3

Extreme and rare rainbows of the world

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Chapter 4

The history and legends of the arc

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YOUR GOAL

Master of To create a rainbow

Ch 2 · How to make your own rainbow

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galleta Using a mirror in a bowl

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galleta Old compact discs can split light using microscopic grooves.

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Fun Fact

Bubble colors: The swirling rainbow colors on a soap bubble change because the bubble's wall is constantly evaporating and changing thickness, shifting the reflected light waves.

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galleta A simple glass of water can act as a prism.

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Quiz

What is the optical phenomenon called when light waves overlap and amplify or cancel each other out, like on a bubble?

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Gossip

Which DIY rainbow experiment sounds the most fun?

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BETA

galleta Rainbow Bubble Maker

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galleta The garden hose spray method

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Quiz

Why does a glass of water on a windowsill project a rainbow?

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galleta A glass of water on a windowsill

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Quiz

What type of light source works best for DIY rainbow experiments at home?

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galleta The CD reflection trick

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Quiz

In the mirror-in-a-bowl experiment, what does the water on top of the mirror do?

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Quiz

What is the scientific term for the shifting rainbow colors seen on a soap bubble?

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Quiz

When making a garden hose rainbow, where must the sun be relative to your body?

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Quiz

What happens to the colors of a soap bubble right before it pops?

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Quiz

What microscopic feature on a CD allows it to split light into rainbow colors?

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