Angina may feel like pressure or squeezing in your chest. The pain also can occur in your shoulders, arms, neck, jaw, or back. Angina pain may even feel like indigestion. Angina isn't a disease; it's a symptom of an underlying heart problem.
Uses of X-rays. The main use of X-rays is in medicine. A comman application is in the form of X-ray machines, which take photos of a patientâs body. If an arm or leg were broken for example, then this limb would be put in front of the X-ray with a piece of photographic film behind.
Medical Use of X-rays The most important application of the X-ray has been its use in medicine. This importance was recognized almost immediately after Roentgen's findings were published in 1895. Within weeks of its first demonstration, an X-ray machine was used in America to diagnose bone fractures.