University of Colorado
University of Colorado: Physics 2000: Einstein's Legacy: X Rays
An explanation of how X-ray machines work. An online activity in which a comparison is made between how the hand would be viewed with X-ray versus with visible light. An additional page explains the use of X-rays in CAT scan devices.
NASA
Nasa: Imagine the Universe: Welcome to the World of X Ray Astronomy
Site recounts how X-rays were discovered as well as who discovered them. Offers graphics, links to facts on this topic, a quiz, and teacher resources.
TED Talks
Ted: Ted Ed: Mysteries of Vernacular: X Ray
The story of the word X-Ray is one of great thinkers. French philosopher Rene Descartes isolated the letters X, Y and Z to stand for unknowns, and centuries later, Wilhelm Rontgen discovered the X-ray, using the X for the unknown nature...
University of Colorado
University of Colorado: Physics 2000: Cat Scans: Projecting Shadows
This page and the three pages which follow discuss how X-ray technology can be used to produce an image of the human body. Discussion is understandable and highly intriguing. Several interactive animations allow the visitor to explore...
Nobel Media AB
The Nobel Prize: Arthur Holly Compton Biographical
In addition to overviewing Compton's (1892-1962 CE) studies in x-rays, this article includes information on Compton's published works, his education, and personal life.
US Environmental Protection Agency
Epa: Radiation Protection
Find out about the EPA's Radiation Protection Division, which aims to protect the nation's people and environment from harmful exposure to radiation.
BBC
Bbc: Gcse Bitesize: Radiation Treatment
X-rays, gamma rays and beta particles are all used in medicine to treat internal organs. X-rays are produced by firing electrons at a metal target and gamma rays are emitted by the nucleus of radioactive atoms. Gamma rays are used to...
Florida State University
Florida State University: Nature of Electromagnetic Radiation
This site from The Florida State University provides an informational page on electromagnetic radiation discusses the characteristics and properties of its many forms including X-rays, gamma rays, ultraviolet radiation, infrared...
NASA
Nasa: Imagine the Universe: The History of Gamma Ray Astronomy
This NASA article discusses the history of gamma-ray astronomy. Related resources.
TED Talks
Ted: Ted Ed: Is Radiation Dangerous?
Matt Anticole describes the different types of radiation. [5:20]
Read Works
Read Works: Electromagnetic Radiation
[Free Registration/Login Required] An informational text about electromagnetic radiation and the effects it creates. A question sheet is available to help students build skills in reading comprehension.
NASA
Viewing the Violent Universe: What Are Gamma Rays?
The universe produces a broad range of light, only a fraction of which is visible to our eyes. Gamma rays are nonvisible light, which also includes x-rays, ultraviolet light, infrared radiation, and radio waves.
University of California
Center Science Edu.: Electromagnetic Radiation on Trial
Here is a 1-5 day unit on electromagnetic radiation that features a teacher guide and student activities with extensions.
University of California
U.c. Berkeley: Spectra From Space
View the entire spectrum of electromagnetic radiation and get information on telescopes especially designed to view different wavelengths of the spectrum.
University of Wisconsin
The Why Files: Things That Go Bump in Space
Contains an introduction to x-ray astronomy, describing how x-rays are being used by scientists to learn about the universe. Also contains links to sites describing black holes, dark matter, neutron stars, and how they are investigated...
University of Colorado
University of Colorado: Physics 2000: Electromagnetic Waves
Using a student-teacher dialogue format, this page discusses the nature of light as an electromagnetic wave and the electromagnetic spectrum.
NASA
Nasa: Imagine the Universe: Pulsars
Resource explores what a pulsar is, as well as what is currently known about this phenomenon. Content includes a focus on x-ray observations of pulsars, and gamma-ray pulsars.
Cosmo Learning
Cosmo Learning: Applied Science and Technology 210: Electrical Engineering
A collection of video lectures from a course that explores the application of electrical engineering topics. Webpage includes twenty-eight lectures from a professor at the University of California, Berkeley. Lectures vary in length and...
Nobel Media AB
The Nobel Prize: Antoine Henri Becquerel Biographical
Read about Becquerel's (1852-1908 CE) contributions to the world of science, which earned him The 1903 Nobel Prize in Physics. This detailed biography includes important dates as well as an overview of his world with radioactivity.
Science Buddies
Science Buddies: Career Profile: Nuclear Medicine Technologist
Nuclear medicine offers a look into the body that x-rays can't show. The nuclear medicine technologist is responsible for admininistering the the various tests that are afforded by nuclear medicine. The technologist can also be the one...
Famous Scientists
Famous Scientists: Wilhelm Rontgen
A short biography about the scientist who produced and detected electromagnetic radiation in a wavelength range known as X-rays or Rontgen rays, which earned him the first Nobel Prize in Physics in 1901.
Careers New Zealand
Kiwicareers: Radiation Oncologist
KiwiCareers offers a very informative site about the duties of an oncologist. Even though it was written for a New Zealand audience, the principles are the same.
Nobel Media AB
The Nobel Prize: Carl D. Anderson Biographical
This site provides a brief article from The Nobel Foundation on the American Physicist, Carl David Anderson. The article overviews his education and involvement in radiation research and cosmic-ray studies, through which he discovered...