The reason we can see colour is because when light hits an object the object absorbs some of the light and reflects the rest away in what our eyes perceive as colour!
To record video You have a device with a lens on it The lens lets light into the device and focuses it on something that reacts to the light in a way that copies the colours it sees
Or something like that, at least!!
Even drawings can appear like they're moving if they are drawn in sequence Like if you draw someone running in one picture In the next you move their arms and legs a bit And keep repeating the process! Then when you look at the sequential images in rapid succession It looks like they're moving!
I don't know how more advanced recording devices work, but the basic principle is just capturing an image of reality and 'drawing' it on something using light.
no subject
To record video
You have a device with a lens on it
The lens lets light into the device and focuses it on something that reacts to the light in a way that copies the colours it sees
Or something like that, at least!!
Even drawings can appear like they're moving if they are drawn in sequence
Like if you draw someone running in one picture
In the next you move their arms and legs a bit
And keep repeating the process!
Then when you look at the sequential images in rapid succession
It looks like they're moving!
I don't know how more advanced recording devices work, but the basic principle is just capturing an image of reality and 'drawing' it on something using light.