Spectrum

http://science.hq.nasa.gov/kids/imagers/ems/ems.html

Once you have investigated your assigned section of the spectrum, create a discussion post from the menu above that tells us: =1. What natural radiation occurs in this part of the spectrum?= =2. What kind of messages are typically sent in this part of the spectrum?= =3. What is the transmitter of the signal?= =4. What is the receiver of the signal?=