The Content Videos and Spreadsheet Software required are materials to be used in conjunction with the Student Modules. They will increase student participation and learning. We created these videos for your convenience, however you may find other resources or methods to use. The Electromagnetic Spectrum. NASA film shows astronauts communicating with Earth.
Students estimate the time delay between the signal from Earth to the response from the moon.
Using this information, students calculate the speed of travel of a radio signal. This video is recommended for use in conjunction with Medicine , Chapter 2, Vision. The videotape shows an actual lens implant procedure. Students view the surgery close-up in the same way as the opthalmologist, wearing a magnifier, would see the operation. The camera is oriented so that the top of the patient's eye is at the bottom of the television screen.