MR. SMITH IS CURRENTLY READING/Listening to. . .
Click here for a much better explanation than the textbook about what Radar is and how it works.
Watch some high level stuff here
Lung in a box
Click here for the study about how technology is transforming lung and heart transplants
If you are a science teacher or a student that need to go over a concept, you need to check this guy out. He is a rock star http://www.bozemanscience.com/