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Book 13, Question 149 · Video

Why Do Some Athletes Put Dark Marks Under Their Eyes?

Video · 1:46 · Crafty Clover explains, from A Million Whys Book 13

Some athletes put dark marks under their eyes to cut glare! Dark patches absorb light that would bounce off their cheeks into their eyes. That can help a little on sunny days.

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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 athletes put dark marks under their eyes?

The Big Idea

Some athletes put dark marks under their eyes to cut glare! Dark patches absorb light that would bounce off their cheeks into their eyes. That can help a little on sunny days.

Glare

Step one: glare. On a sunny day, bright light can bounce around and bother our eyes. That is called glare, and it makes seeing harder.

Dark Absorbs

Step two: dark marks. Some athletes put black grease or stripes under their eyes. Dark patches absorb the light that bounces off their cheeks into their eyes.

Small Help

Step three: a small effect. The effect is small, but it may help when the Sun is low or the field is bright. A cap with a brim helps in the same way.

A Closer Look

Let's take a closer look! Sunshine is bright on the field. Light bounces off the cheeks. Dark marks soak up some of it. That means a little less glare in the eyes.

Quick Facts

Quick facts! Bright light bouncing off your cheeks can add to glare, just like light from the ground. Dark surfaces absorb more light, and light surfaces reflect more. Hats, visors, and sunglasses also help with glare. Never look at the Sun.

Think Like a Scientist

Now, think like a scientist! On a sunny day, look at a bright surface, like a sidewalk, from a safe place. Try it with and without a cap brim or your hand shading your eyes. Which makes it easier to see? Never look at the Sun.

Outro

Dark marks under the eyes can soak up some glare. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

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