This 1995 experiment starts with strange highlights on car paint, then tests curved scratches on acrylic. The images can create virtual depth, but the optical mechanism differs from conventional laser holography. The page preserves the observation, homemade apparatus, follow-up references, and the corrections readers helped add.
Original scratch-holography article: https://www.amasci.com/amateur/holo1.html
Full Switchboard article: https://switchboardtechservices.com/articles/ancient-web-bill-beaty-drew-holograms-with-a-compass-and-plastic/
#ancientweb #optics #scienceexperiments #personalweb
Original scratch-holography article: https://www.amasci.com/amateur/holo1.html
Full Switchboard article: https://switchboardtechservices.com/articles/ancient-web-bill-beaty-drew-holograms-with-a-compass-and-plastic/
#ancientweb #optics #scienceexperiments #personalweb
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Categories: Ancient Web & Internet History [c23]