How Do Holograms Work Without Magic?

Holograms look like pictures that float in the air, but they’re made with real stuff, like light and mirrors. Imagine shining a laser on a special surface to create a 3D picture that you can see from different angles, like it’s really there.

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Examples

A hologram can be used in a museum to show you a dinosaur that looks like it’s walking around the room.
Holograms are also found on credit cards, they change when you tilt them just right.
A hologram of your favorite singer could appear at a concert, singing live without being there.

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Categories: Technology · hologram· optics· light· science· technology