All our actions happen in the electromagnetic space. Be it light or other frequencies the space is characterized by vibration of photons An individium must use all possibilities to show a picture of the present in another view angle.
In an electromagnetic space, a shape becomes a vibration. This effect is used when building an antenna.
Here they see a black line on which are drawn with silver lines in a certain thickness, length and distance. This image excites the electromagnetic space at a certain frequency.