K8 Electromagnetic Waves and Sources

These demonstrations introduce the phenomena of electromagnetic waves, and a variety of examples of their production, transmission, and behaviour.

Articles
Image	Title
	K8-01 ELECTROMAGNETIC WAVE - MODEL Shows the relationship between the electric and magnetic field vectors in a plane-polarized traveling electromagnetic wave
	K8-03 LIGHT NANOSECOND Shows the distance light travels in one nanosecond
	K8-04: SPEED OF LIGHT Measure the speed of light
	K8-05: ELECTROMAGNETIC PLANE WAVE MODEL Illustrate the geometry of a polarized electromagnetic plane wave.
	K8-11: MICROWAVES - STANDING WAVES Demonstrate microwave standing waves.
	K8-12: RADIOWAVES - STANDING WAVES Demonstrate standing waves using radio waves.
	K8-13: RADIOWAVES - LECHER WIRE STANDING WAVES Illustrate standing electromagnetic waves in a high-impedance transmission line.
	K8-14: RADIOWAVES - STANDING WAVES IN AN ANTENNA Show standing waves in a dipole antenna.
	K8-21: MICROWAVES - WAVEGUIDES See what microwave waveguide components look like and to discuss their functions.
	K8-22: MICROWAVES - TUBULAR WAVEGUIDE Demonstrate transmission of microwaves in a tubular "waveguide."
	K8-31: TRANSMISSION LINE SAMPLE Show a large coaxial cable transmission line.
	K8-32: PULSES IN TRANSMISSION LINES Demonstrate the reflection of pulses in terminated and unterminated transmission lines and to determine the speed of an electromagnetic wave in the transmission line.
	K8-33: NANOSECOND CABLES Cables which delay a signal by a fixed time interval.
	K8-41: HERTZIAN DIPOLES Show the shape and polarization of the radiation field around a dipole antenna.
	K8-42: RADIOWAVES - ENERGY AND DIPOLE PATTERN Demonstrates transmission of energy in electromagnetic waves. Shows the radiation pattern of the dipole antenna
	K8-43: RADIOWAVES - FREQ MEASUREMENT WITH OSCILLOSCOPE Experimentally determine the frequency of the radiowave transmitter.
	K8-44: RADIOWAVES - COUPLING OF WAVES Illustrate inductive coupling using radio waves.
	K8-45 RADIO WAVES FROM SPARK Demonstrates that a spark contains radio waves
	K8-46: Radio Waves & Faraday Cage Demonstrates that radio waves do not penetrate a Faraday cage
	K8-51: MICROWAVE OVEN Demonstrate operation and experimentation with a microwave oven.
	K8-52: MICROWAVE MAGNETRON Show students what the magnetron tube from a typical microwave oven looks like.