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Visible Light Waves + EM Waves

By: Bea Spears

EM Waves

- Radio waves: Least energy & shortest wave length

- Gamma rays: Most energy & longest wave length

Radiation

- Non-ionizing: Does not cause harm

- Ionizing: Does cause harm

- Visible light waves are non-ionizing

Radiation

Visible Light Waves

How They Work

Importance

Importance

Visible light waves let us see:

- Colors

- Shapes

Seeing Each Color

Seeing Colors

Wavelengths determine what colors we see at each point in time

How They Work

How They Work

- Rod & cone cells see light & color

- Thalamus processes info & passes it to other parts of the brain

- Prefrontal cortex uses information from our senses, memories, & emotions to create a better reaction

CRAP Tested Source

https://www.amnh.org/explore/ology/brain/seeing-color

CRAP Test

C: No date listed

R: Info related to topic, has images, cited by museum

A: No author, American Museum of Natural History is the institution

P: To show how visible light waves work, no ads

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