After the Commandants of interior commanderies were abolished, the Administrators assumed their duties, yet they were still not allowed to raise militias, mobilize troops, or send troops outside their commandery without permission frm the central government.
Although most contemporary vessels had a single mast (histos or katartion), the larger bireme dromons probably needed at least two masts in order to maneuver effectively, assuming that a single lateen sail for a ship this size would have reached unmanageable dimensions.
Betances openly hated Estrada when he first met him in the late 1870s, but grew more tolerant of him with time, and even defended Estrada's actions as leader when he assumed control of the Cuban Revolutionary Party.
Both Amdahl's law and Gustafson's law assume that the running time of the sequential portion of the program is independent of the number of processors. Amdahl's law assumes that the entire problem is of fixed size so that the total amount of work to be done in parallel is also independent of the number of processors, whereas Gustafson's law assumes that the total amount of work to be done in parallel varies linearly with the number of processors.
Dirac was able to derive Einstein's and coefficients from first principles, and showed that the Bose–Einstein statistics of photons is a natural consequence of quantizing the electromagnetic field correctly (Bose's reasoning went in the opposite direction; he derived Planck's law of black body radiation by assuming B–E statistics).