Transcription: In 1900, Sigmund Freud published his first paper on psychoanalysis. It indicated that the conscious mind was influenced by forces buried in a subconscious dream world. The human mind was not entirely logical. Irrationality was a real aspect of life. Five years later, Albert Einstein published his first paper on the theory of relativity, disclosing that the visible world depends on an invisible world of energy. What we see is only a small part of reality. Artist's perceptions were affected by these new ideas. In 1907, Picasso began a revolution in the manner of representing the visible world. I ...
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