How 3D holograms work

 

By: Physics Girl

Originally published on Sep 15, 2015

Holograms are photographic recordings of 3D scenes. Unlike a camera, which captures one view through a small viewer focused by a lens, holograms capture an entire light field which allows them to recreate the 3D scene. Shimmery 2D projections, like pre-recorded Pepper’s ghost illusion, are often confused with 3D holograms.

Pepper’s Ghost Tutorials
https://www.youtube.com/watch?v=ygMXT…
https://www.youtube.com/watch?v=7YWTt…

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Physics Girl has joined PBS Digital Studios! https://www.youtube.com/user/pbsdigit…

Videography: Forbidden Kingdom Digital, Cathy Cowern
Editing: Dianna Cowern and Forbidden Kingdom Digital forbiddenkingdomdigital.com

Hologram microscopic views: Richard L Howey http://www.microscopy-uk.org.uk/mag/a…
and https://en.wikipedia.org/wiki/Hologra…
Tupac Coachella Footage: https://www.youtube.com/watch?v=YgMen…

Music:
YouTube – “On the Bach,” “Good Starts”
Mozart “Eine Kleine Nachtmusik”

Stock Images: Pixabay

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