We see light all the time. The screen you are looking at to read this is emitting light. But what is light?

Photons of Light

Speed of Light

Mass of Light

Videdia is your video encyclopedia and your place to learn about everything – Visit the Table of Contents to find lots more topics. If you want to learn more about this topic, try these tips:

1. If you like a particular video, visit the video’s channel. Subscribe to the channel if you want to see new content or to show your support.
2. Look for related videos. If you pull up the video in YouTube, then YouTube will often recommend related videos.
3. Search YouTube and Google for more information on the topic.

Come back to Videdia every day to learn new things.