This exhibit examines the electromagnetic spectrum and identifies the properties of differing wavelengths and the applications.
Activity.... Do – Think - Learn
Electro-magnetic waves are all around us and we use them in a number of ways.
Step onto the feet on the floor and see what you can find out.
Where is the mobile phone on the electro-magnetic spectrum?
The Science Bit
Electro-magnetic waves come in a variety of wavelengths from thousands of km down to fractions of an atom. All electro-magnetic waves travel at the speed of light. The waves are made up of particles carrying energy. The higher the frequency (shorter wavelength) the more energy the wave carries. The higher the frequency of the wave the more dangerous the waves become. Gamma rays are the most dangerous to humans. As humans we use electromagnetic waves daily in our everyday lives, for example mobile phones, x-rays, microwave ovens.