I still don’t get it. Saw a hologram of a microscope, and I could move closer to the hologram and actually see what was inside the lens.
It freaks me out, and I still think it’s some sort of witchcraft
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I saw that hologram in a hologram museum as a kid. I thought it was cool.
Imagine looking at something shiny, such as a ball bearing, lying in the sun. As you move around it, the reflection of the sun moves across the surface of the ball bearing.
You’ve probably also seen the surface of a CD or other optical disc, and how it blooms into rainbow colors when you look at it from certain angles. This is because of a tiny spiral track scratched into the surface, which reflects light differently depending on how you look at it. Close one eye or the other, and you see that the colors shift position on the surface.
Holograms use tiny scratches in a shiny surface to reflect light differently into your eyes depending on where you look at them from. Rather than being arranged in a spiral, they’re cleverly constructed to form different perspectives of a three-dimensional image.
When your two eyes see two different perspectives of the same object, you automatically assume that it exists in three dimensions. You’re essentially looking into a complicated mirror that generates a synthetic mirror image rather than mirroring reality. Holograms work best when viewed in a dark room with a single point source of light, since multiple or diffuse sources of light make multiple or fuzzy reflections that ruin the 3D effect.
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