1 Complete the requirements of at least one major degree program. 2  Complete at least 120 semester hours (some degree programs require more than 120 hours). 3  Complete at least 60 semester hours at Rice University.4  Complete at least 48 hours of all degree work in upper-level courses (at the 300 level or higher). Complete the requirements of at least one major degree program. 2  Complete at least 120 semester hours (some degree programs require more than 120 hours). 3  Complete at least 60 semester hours at Rice University.
X-rays are waves of electromagnetic radiation that are absorbed differently by different tissues. Bones absorb them well because they are dense. A skeletal X-ray specifically looks at your skeletonâwhich is made up of all the bones in your body.
Teeth and Bones â A History of X-Rays An x-ray is a form of electromagnetic radiation and can produce an image of somethings internal composition, especially parts of the body. Today, x-rays are often used in hospitals and other medical facilities in helping to diagnose broken bones and other issues. X-rays were initially discovered in the late 1800s by a German physicist. This discovery led to many advances in the field of radiology, especially in regards to medical use of x-rays. In 1895, Wilhelm Rontgen, a German physicist, was the first person to discover and systematically study x-rays.