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Book 13, Question 130 · Video

Why Do Some Lamps Look Warm and Yellow While Others Look Cool and White?

Video · 1:51 · Crafty Clover explains, from A Million Whys Book 13

Some lamps look warm and yellow, and others look cool and white, because they give off different mixes of colors! Warm lamps have more orange and yellow. Cool lamps have more blue.

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What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do some lamps look warm and yellow while others look cool and white?

The Big Idea

Some lamps look warm and yellow, and others look cool and white, because they give off different mixes of colors! Warm lamps have more orange and yellow. Cool lamps have more blue.

Warm Lamps

Step one: warm lamps. Warm lamps have more orange and yellow in their light, like a sunset. They feel cozy, which is why they are popular in bedrooms.

Cool Lamps

Step two: cool lamps. Cool lamps have more blue in their light, like a bright morning. They feel crisp and awake, and they make white things look very bright.

Color Temperature

Step three: color temperature. The difference is called color temperature, and it is measured in a unit called kelvins. Packages often say warm white or daylight.

A Closer Look

Let's take a closer look! Warm white leans toward orange and yellow. Cool white leans toward blue. The package label tells you which one it is. Warm lamps are cozy, and cool ones are for working.

Quick Facts

Quick facts! Warm lamps feel cozy in living rooms and bedrooms. Cool lamps are popular in kitchens and workspaces. Daylight bulbs look bluish compared with warm ones, even though both are called white. Kelvins are named after a scientist, Lord Kelvin, who studied heat.

Think Like a Scientist

Now, think like a scientist! With a grown-up, check the labels on a few bulbs. Find words like warm white or daylight. Look at white paper under each one. Which looks more yellowish and which looks bluer?

Outro

Lamps look warm or cool because of the mix of colors in their light. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

Why I wrote this