# What is color?

- Institution: TED
- Department: TED-Ed
- Speaker: Colm Kelleher
- Year: 2012
- Level: For everyone
- Language: English
- Subjects: Physics
- Source: [TED](https://www.ted.com/talks/colm_kelleher_what_is_color)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Have you ever wondered what color is? In this first installment of a series on light, Colm Kelleher describes the physics behind colors-- why the colors we see are related to the period of motion and the frequency of waves. \[Directed by Alex Rupert and Bernard Tan, narrated by Colm Kelleher\].

## Lectures

1. [What is color?](https://invisiblenetwork.ai/learn/ted/colm_kelleher_what_is_color/12a9cff3f15d), 3 min (TED's player)