Werner Heisenberg. The Physical Principles of Quantum Theory. New York, Dover Publications, 1949 Werner Karl Heisenberg was a German theoretical physicist, one of the main pioneers of the theory of quantum mechanics and a principal scientist in nuclear program. The book discusses quantum mechanics and one 1931 review states that this is a "less technical and less involved account of the theor[y]". This book has been cited more than 2,000 times. Condition: Soft paper edition of the original hardbound edition, also published in 1930. Pages clean and bright, firm binding. In good condition. Previous library owner with few stamps and stamp on binding. 19 figure in text. 200 pages Dimension: 20.5 x 13.5 cm Photos supplement descriptions. "Please View & Used the photos for Part of Description & Further Condition Details"!!! Ship tracked & Insured.