This is a demonstration of an X-ray machine called a fluoroscope. To
use it, just "grab" the small wire-frame with your pointer, hold down the
button, and move it around. You'll see the X-ray of the hand through this
Is it really so surprising that x-rays can go through solid objects? Do you
know why some things, like bones or metal, are more resistant to x-rays than
skin and muscle? Did you know that light can also penetrate some materials?
Explore the physics underlying X-rays, light, and other kinds
of electromagnetic radiation.
Learn how X-rays are used in medical imaging to create 3-D pictures of the
inner human body.