What is a hologram?
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What is a hologram?
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Vintage Transmission Hologram: The 3D image from this very early example of holography is only made visible with the coherent light of a laser. This vintage hologram dates to 1967 and was one of the first holograms to be mass produced (for those rich enough to own a laser back then) as this was years before diode laser pointers were available. Here I use a cyan frequency pointer reflected off a wall to reconstruct the pocket watch and magnifying glass- although the holographic plate is rather sc
1:14
Vintage Transmission Hologram: The 3D image from this very early …
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FacebookPhysicsfun
New tech for imaging brain waves could advance disease research, AI
New tech for imaging brain waves could advance disease research, AI
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Scientists Made Beautiful Holograms Using Sound
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Transmission hologram! #science #physics #optics
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Transmission hologram! #science #physics #optics
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Uncover Reality | From Science to Space on Instagram: "Scientists have discovered that sound waves can levitate and move objects without touching them, even through air, water, or tissue. This technology, called acoustic levitation, uses sound waves to create invisible pressure points that trap and hold objects in midair. In a major breakthrough, Asier Marzo and his team developed a way to move and rotate objects using sound from only one side, unlike earlier systems that required enclosing the
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