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Practical Holography, 4th Edition by Stanislovas Zacharovas, Graham Saxby

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Chapter 20

Display Techniques

The shop seemed to be full of all manner of curious things—but the oddest part of it all was that, wherever she looked hard at any shelf, to make out exactly what it had on it, that particular shelf was always quite empty, though the others round it were crowded as full as they could hold.

Lewis Carroll

Through the Looking-Glass

Most holographers carry a small hologram around with them all the time. They don’t want to be caught out by someone asking them: “What is a hologram? What does a hologram look like?” Of course, merely carrying a hologram isn’t enough. In these days of universal shadow-free room lighting, you need a focusing pocket torch and an appropriate line of patter as well, because the next two questions ...

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