Forms of Light

On this episode the wise seagulls on the beach explain to Canelina the cat that:


All the following are light. The only thing that changes is how quickly the electrons vibrate (or their frequency).


Starting from lower frequencies to higher ones


Audio waves
(Not to be confused with acoustic wave sound, an audio, sound or music electromagnetic wave would be emitted at the speed of light if for example an antenna of a thousand kilometers is connected directly to the output of a dynamic microphone)


Radio long waves


Radio medium waves (for example the band MW or medium wave)


Radio short waves


Radio ultra short waves (FM band etc)


Radio microwaves (cellular phones, even shorter microwaves on microwave ovens etc)


Infrared
What we feel when we are near sources of heat


Red


Orange


Yellow


Green


Blue


Violet


Ultraviolet
(It can tan our body)


X-Rays
It can pass through our body


Gamma Rays


Etc


All the above are light but our eye is made to see only a part of the electromagnetic spectrum.


But it's all there. All we have to do is lift the antenna and listen to a soap advertisement.


Reference:


Richard Feynman lecture to Auckland University - YouTube
https://m.youtube.com/watch?v=xdZMXWmlp9g