What exactly is an MRI scan?  Is there actually a magnet uses? What does resonance have to do with it?  Listen to this podcast and find out how magnets and resonance are used to image our bodies.

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.