How 3D holograms work

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=ygMXTx0fLqw https://www.youtube.com/watch?v=7YWTtCsvgvg instagram.com/thephysicsgirl facebook.com/thephysicsgirl twitter.com/thephysicsgirl physicsgirl.org Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Physics Girl has joined PBS Digital Studios! https://www.youtube.com/user/pbsdigitalstudios 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/artmar07/rh-whimsies.html and https://en.wikipedia.org/wiki/Holography#/media/File:Holographic_recording.jpg Tupac Coachella Footage: https://www.youtube.com/watch?v=YgMen4-PI74 Music: YouTube - “On the Bach,” “Good Starts” Mozart “Eine Kleine Nachtmusik” Stock Images: Pixabay