X-rays

X-rays are a form of electromagnetic radiation, similar to visible light, radio waves, and microwaves. They have a shorter wavelength and higher energy than visible light, which allows them to pass through soft tissues of the body but are absorbed by denser materials such as bones and teeth. This property makes X-rays useful in medical imaging to visualize the internal structures of the body.

Discovery of X-rays

X-rays were discovered by Wilhelm Conrad Roentgen in 1895. He found that a cathode-ray tube emitted a mysterious, invisible form of radiation that could pass through solid objects and expose photographic plates. This discovery revolutionized the fields of medicine and science.

Uses of X-rays

X-rays are widely used in medicine for diagnostic imaging, such as detecting fractures, tumors, and infections. They are also used in airport security to scan luggage for potential threats. In industry, X-rays are used to inspect metal components for defects and in research for studying the atomic and molecular structure of materials.

Safety Precautions

Although X-rays are valuable for medical diagnosis and industrial applications, they can be harmful if not used properly. Excessive exposure to X-rays can damage living tissues and increase the risk of cancer. Therefore, strict safety measures and regulations are in place to minimize the risks associated with X-ray exposure.

Study Guide

1. What are X-rays and how do they differ from visible light?
2. Who discovered X-rays and in what year?
3. What are the primary uses of X-rays in medicine and industry?
4. Why is it important to follow safety precautions when using X-rays?