Discussion and reply ( econ& physics)

Discussion Topic:

Can "broken windows" make the economy grow? Why?

Post your favorite YouTube video on one of the topics in chapters 26 and 27.  Topics include

• electromagnetic waves
• the electromagnetic spectrum
• transparent and opaque materials
• seeing light - the eye
• color
• mixing colored light and pigment
• why the sky is blue

In your post please include a link to the YouTube video and a short description of the video including:

1. What topics are covered in the video?
2. Is the video accurate?
3. Was it easy to follow?
4. What improvements could be made?