Randy Ochoa, age 10, of Jackson, Fla, for his question:

HOW IS A HOLOGRAM PRODUCED?

A hologram is a pattern which can produce a three dimensional image of a scene. It is usually made on photographic film. The holographic image is often so lifelike that it appears to be a real scene viewed through a window.

Holograms are produced by illuminating the scene with light from a device called a laser. The holographic image is then created by shining a similar beam of light on the hologram.

The hologram changes the light to reconstruct new light patterns which came from the original scene. In a hologram, the viewer can see around objects in the foreground by moving his head, just as he looks around real objects.