Most people have had and 'x-ray' most commonly at a dental office or a hospital.  But really, what is an x-ray, how are they produced and how do they interstice in the body to   create an image or treat cancer.  Listen to the podcast to learn about x-rays in medicine.

We all put them on when we go out in the sun.  But few people know how they work.  Listen as we talk about the physics of sunscreens.