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.
NASA
Nasa: The Space Place: Have Super Hearing With a Super Sound Cone
This site from NASA provides an interesting approach to the subject. How do messages travel in space and how do we intercept those messages on Earth? Find out the answers as well as find out how NASA's giant dish antennas work.
Creative Science Centre
Creative Science Centre: A Portable Shortwave Rx Loop Antenna
A simple portable antenna is described that gives good radio reception on the main shortwave bands.
Exploratorium
Exploratorium: Science Snacks: Radiohead
Try this experiment to see how sound transmits as vibrations through solid matter. You will use a toothbrush to listen to the radio.
University Corporation for Atmospheric Research
Ucar: Satellites and Weather Teaching Box
Help your middle school student learn how satellites help make weather forecasts more accurate and how the COSMIC satellites collect data about the atmosphere by measuring bending radio waves.
PBS
Pbs Teachers:origins Back to the Beginning
This hour long program by NOVA is split into six segments and examines a issues influencing scientists' current understanding of how the universe was formed. This includes The Big Bang and its lasting effects.
Wikimedia
Wikipedia: Guillermo Marconi
This site chronicles the father of wireless communication. Examines his life and how his accomplishments affected both society and warfare.
NASA
Nasa: Mission: Science: Electromagnetic Spectrum: Infrared Waves
Infrared light lies between the visible and microwave portions of the electromagnetic spectrum. Infrared light has a range of wavelengths, just like visible light has wavelengths that range from red light to violet.
Other
Harvard Medical School: Magnetic Resonance Imaging (Mri)
This Beth Israel Deaconess Medical Center site offers a comprehensive look at MRI exam phases, preparation, technology, equipment, safety, and research. Images and labeled diagrams are also provided on this site.
PBS
Pbs Teachers: Scientific American: Science in Paradise: Big Dish
Investigate the science of radio astronomy, and create a model of a curved reflecting dish that will work like the Arecibo detector to detect electromagnetic waves. Explore risk using a risk space grid.
Space Telescope Science Institute
Amazing Space: Star Light Star Bright: Electromagnetic Radiation
Use this tool to learn facts about the range of the electromagnetic spectrum, from radio waves to gamma rays.
National High Magnetic Field Laboratory
Magnet Academy: Timeline of Electricity and Magnetism: 1880 1889
Nikola Tesla and Thomas Edison duke it out over the best way to transmit electricity and Heinrich Hertz is the first person (unbeknownst to him) to broadcast and receive radio waves.
National High Magnetic Field Laboratory
Magnet Academy: Magnetic Resonance Imaging Mri
In MRI, magnetic fields and radio wave pulses combine to get a unique, and medically beneficial, response from your body's hydrogen atoms. Take a peek in this tutorial.
TED Talks
Ted: Ted Ed: Will We Ever Be Able to Teleport?
Is teleportation possible? Could a baseball transform into something like a radio wave, travel through buildings, bounce around corners, and change back into a baseball? Find out if these are possible with quantum mechanics.
PBS
Pbs: American Experience: Joseph Henry Lays Groundwork for the Telephone
This is the man who most encouraged Bell to invent the telephone. Bell said, "But for Henry, I never would have gone ahead with the telephone." This is a fascinating account both of Bell's invention and of Henry's life. Half a biography,...
Nobel Media AB
The Nobel Prize: Marie and Pierre Curie and the Discovery of Polonium and Radium
The Nobel Foundation provides a lecture given by Nanny Froman at the Royal Swedish Academy of Science in Sotckholm, Sweden. "Marie and Pierre Curie and the Discovery of Polonium and Radium" is organized into several sections including:...
NASA
Nasa's the Space Place: A Trip to the Land of the Magic Windows
Explore the electromagnetic spectrum and learn about each type of energy on the spectrum.
WebMD
Medicine Net: Magnetic Resonance Imaging
This site from MedicineNet.com gives an MRI description, why they're performed, risks, and patient preparation. A thorough explanation of the process is provided.
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.
Creative Science Centre
Creative Science Centre: Mobile Phone Absorption Wavemeter
An absorption wavemeter is a device which can make measurements on the strength of radio emissions and so this instrument is an essential item for investigating the mobile phone. In principle an absorption meter is a simple device that...
Other
Weather Questions: How Does Weather Radar Work?
Radar (which stands for RAdio Detection And Ranging) transmits microwaves in a focused beam. Some of this microwave energy bounces off of objects and returns to the radar to be measured. The radar sends pulses of energy, rather than a...
NASA
Nasa: Oersted and Ampere Link Electricity
NASA provides a nice blending of the achievements of three scientists, Oersted, Ampere, and Maxwell. This done by NASA-sponsored International Solar-Terrestrial Physics group. Lots of pictures, diagrams, and scientific explanation. Good...
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.
Wikimedia
Wikipedia: Spectral Line
Wikipedia offers information on spectral line, a dark or bright line in an otherwise uniform and continuous spectrum.
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