Have you ever shined a bright flashlight through your hand and you were able to the red of your flesh and the dark outline of your bones?
That is also exactly how an X-ray machine works, but they are using photons that have more energy and penetrate much more easily. Which is why they can go through almost all of your flesh with no problem. And then they shine on either a photographic plate or the digital equivalent in order to make a picture.
Latest Answers