The mediaâs role in bringing many of the significant events of the civil rights movement to light helped the nation to progress towards more equality.
â¢ X rays are high energy electromagnetic waves, but visible light is medium energy electromagnetic waves. â¢ The visible spectrum is very narrow compared to the X-ray spectrum. â¢ X rays can penetrate the human body but visible light is not capable of doing that. Related posts: 1  Difference Between Radioactivity and Radiation.
Beyond the blue end of the visible spectrum lies ultraviolet light, X-rays and gamma-rays. All of the X-rays, gamma-rays and ultraviolet light emitted by stars are absorbed by the Earth's atmosphere. That is why we need to send our telescopes into space (such as Astro-2 !) in order to measure the ultraviolet light from stars and galaxies.