A Ham radio operator will tell you all about the standing wave ratio (SWR) of his antenna, and he may even have a meter in the ... you’ve got to remember two things. First, waves of any kind ...

Back to our radio signal. The electrons in our wire are moving, but not in one direction. These electrons are moving back and forth. Actually, the wave displayed ... just the way things work.

The types of radiation that occur in different parts of the spectrum have different uses and dangers ... Bluetooth uses radio waves because radio waves pass through walls but the signal is ...

Humans have figured out many ways to utilize radio waves, X-rays ... which improved the generation and transmission of THz waves. “These two things taken together, the more powerful transistors ...

The first steps toward inventing radio involved discovering electromagnetic waves and their potential. Hans Christian Oersted was the first to proclaim, in 1820, that a magnetic field is created ...

Different types of electromagnetic wave have different uses and dangers. Radio waves are used for sending radio and television signals. They are also used to control radio-controlled toys ...