Project Whirlwind: Recent submissions

Now showing items 1401-1420 of 1737

    • Group 63 Seminar on Magnetism, XXXVII 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-03-13)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include the electrical conductivity and ferromagnetism.

    • Group 63 Seminar on Magnetism, XLI 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-03-24)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include a study of the magnetization of alloys using the Heitler-London model, parallel spins, anti-parallel spins, nickel-manganese system, cobalt-iron and ...

    • Group 63 Seminar on Magnetism, Appendix I 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1952-11-12)
      Appendix to a memo for a Group 63 seminar on magnetism. Topics include Eddy currents, Maxwell's equation, laminations as electrical insulation.

    • Symposium on Williams'-Tube Storage 

      Greenwood, T. S. (MIT Digital Computer Laboratory, 1952-01-22)
      This memorandum reports on visits to ERA and the University of Illinois. Both groups are working on computers using Williams-type memory systems with operation at 1024 spots per tube. At ERA the proposed memory is ...

    • Design and Tests of Electronic Circuits for Operating Safety Margins 

      Forrester, Jay W. (MIT Digital Computer Laboratory, 1953-01-27)
      A detailed laboratory test of circuits should be made to measure the operating margins and the sensitivity of the circuit to component changes. Also a measurement of marginal checking effectiveness is needed. A curve of ...

    • Laboratory Personnel 

      Digital Computer Laboratory Administrative Staff (MIT Digital Computer Laboratory, 1952-12-01)
      Memorandum listing Laboratory Personnel of the MIT Digital Computer Laboratory.

    • Group 63 Seminar on Magnetism VI 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1952-10-27)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include Langevin's theory of paramagnetism, the Curie-Weiss Law, and exchange interactions.

    • Group 63 Seminar on Magnetism, Appendix II 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1952-10-28)
      Appendix to a memo for a Group 63 seminar on magnetism. Topics include spin angular momentum, orbital angular momentum, total angular momentum, and the magnetic field component of angular momentum of an electron.

    • Visit to Burroughs, Philadelphia, on December 18, 1952 

      Paine, B. B.; Sutro, L. L. (MIT Digital Computer Laboratory, 1952-12-24)
      We visited Burroughs to observe the first pulse units manufactured there on our third order for equipment; to clarify some matter concerning delivery schedules, components, and circuit changes; to make sure that all the ...

    • WWII Block Diagrams Meeting of May 20 & 22, 1952 

      Hosier, W. A. (MIT Digital Computer Laboratory, 1952-05-29)
      This note summarizes the discussion at the above meeting for the benefit of those who may wish to trace the course of thought on the subject.

    • Whirlwind II Meeting of April 11, 1952 

      Taylor, Norman H.; Mayer, Rollin P. (MIT Digital Computer Laboratory, 1952-04-21)
      Memorandum on the Whirlwind II meeting of April 11, 1952 on the activities of the various groups working on WWII.

    • Group 63 Seminar on Magnetism, Appendix IV, A Theory of Contact Potential Measurements 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-01-14)
      Appendix to a memo for a Group 63 seminar on magnetism. Topics include contact potential and a theory of contact potential measurements.

    • Whirlwind II Meeting of June 13th, 1952 

      Taylor, Norman H.; Mayer, Rollin P. (MIT Digital Computer Laboratory, 1952-08-08)
      Memorandum summarizing the discussion of the Whirlwind II Meeting of June 13, 1952 on a report by D. Eckl on transistor circuits and a report by W. Papian on the progress of the magnetic memory section.

    • Liaison with IBM Corporation 

      Fahnestock, Harris (MIT Digital Computer Laboratory, 1952-10-27)
      Maintenance of complete records of our work with IBM requires liaison between MIT and this company be through a central point of contact. Art Kromer will handle this assignment.

    • Magnetic-Core Memory Matrix Analysis (Effect Of Driver Impedance) 

      Buck, Dudley A. (MIT Digital Computer Laboratory, 1952-01-24)
      The following analysis of a magnetic-core memory shows the extent to which the quiescent internal impedance of the row and column drivers affects the selection ratio.

    • Group 63 Seminar on Magnetism, XIV 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1952-12-09)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include the oscillating system discussed in the previous meeting, the equation of motion, the "beat frequency" radiation hypothesized by Bohr, and frequencies ...

    • Laboratory Personnel 

      Digital Computer Laboratory Administrative Staff (MIT Digital Computer Laboratory, 1952-03-06)
      Memorandum listing Laboratory Personnel of the MIT Digital Computer Laboratory.

    • Group 63 Seminar on Magnetism, Appendix V, Analogy Between a Set of Eigenfunctions and Coordinate Systems 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-01-21)
      Appendix to a memo for a Group 63 seminar on magnetism. Topics include an analogy between a set of eigenfunctions and coordinate systems, and matrix mechanics.

    • Pulse Tests of the RCA Victor Ferrite, XF-96 

      Smulowicz, Bronislaw (MIT Digital Computer Laboratory, 1953-01-22)
      Results of a pulse test performed on the RCA Victor ferrite, XF-96, show satisfactory operation with a good selection ratio at approximately 2.1 oersteds.

    • Group 63 Seminar on Magnetism, XXIII 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-01-16)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include the Schroedinger equation, orthonormality, energy of a system, and the potential wall problem.