Over the Summer while I was visiting my uncle in Boston I went to his office. My uncle is a orthopedic surgeon, and in his office he has an MRI machine. At the time I knew what it was and what it did, but I did not know how, however, now with my knowledge of physics I know how this machine works. The MRI is actually a large electromagnet. Since it is an electromagnet, the machine can be turned on or off whenever it is needed, all it needs is current flowing through it. The machine creates a magnetic field, and the patient is put into the middle of that field. The machine then creates images with the Bfield, allowing your muscles and bones to be shown and recorded. My uncle can then use the information gathered by the MRI to determine what procedure is needed for each patient. While seeming complicated at first, with physics knowledge this highly useful machine can easily be explained.
