Instruction
From the following list, pick one of the applications of the electromagnetic spectrum that interests you:
Black holes
The colors of the Aurora
Why leaves change color
How NASA communicates with spacecraft that are sent to various planets
Broadcast of AM and FM radio
GPS technology
Electromagnetic waves and human health
Share your information and thoughts on the topic of your choice, following the prompts below.
Write a page about the application which should include the following:
Background and introductory information
The basic principle behind the working of the application.
Why does this topic fascinate you?