Silver Halide Crystals

Famous quotes containing the words silver and/or crystals:

    While this magnetic,
    Peripatetic
    Lover he lived to learn,
    By no endeavor
    Can a magnet ever
    Attract a Silver Churn!
    Sir William Schwenck Gilbert (1836–1911)

    It is clear that everybody interested in science must be interested in world 3 objects. A physical scientist, to start with, may be interested mainly in world 1 objects—say crystals and X-rays. But very soon he must realize how much depends on our interpretation of the facts, that is, on our theories, and so on world 3 objects. Similarly, a historian of science, or a philosopher interested in science must be largely a student of world 3 objects.
    Karl Popper (1902–1994)