Of course, the first thing to do was to make a grand survey of the country she was going to travel through. ‘It’s something very like learning geography,’ thought Alice.
Through the Looking-Glass
There are a number of different types of hologram, and you will find an outline of the principle of each of them in this chapter; subsequent chapters explain how to make them. There are many types of 3D imagery, and some of them are not holograms at all. For those of you who may be a little uncertain as to what is and what is not a hologram, we must stress at the outset that a holographic image is by definition formed by the interference of light waves, the stationary pattern of which is recorded on light-sensitive ...