Context and question: In DC circuits and pulsed circuits, current and voltage reversal are affected by the damping of the system. Voltage reversal is encountered in RLC circuits that are under-damped. The current and voltage reverse direction, forming a harmonic oscillator between the inductance and capacitance. The current and voltage will tend to oscillate and may reverse direction several times, with each peak being lower than the previous, until the system reaches an equilibrium. This is often referred to as ringing. In comparison, critically damped or over-damped systems usually do not experience a voltage reversal. Reversal is also encountered in AC circuits, where the peak current will be equal in each direction.
What is another type of circuit in which voltage and current reversal are affected by damping?
Answer: pulsed circuits
Context and question: Adventurer and poet Luís de Camões (c. 1524–1580) wrote the epic poem "Os Lusíadas" (The Lusiads), with Virgil's Aeneid as his main influence. Modern Portuguese poetry is rooted in neoclassic and contemporary styles, as exemplified by Fernando Pessoa (1888–1935). Modern Portuguese literature is represented by authors such as Almeida Garrett, Camilo Castelo Branco, Eça de Queiroz, Fernando Pessoa, Sophia de Mello Breyner Andresen, António Lobo Antunes and Miguel Torga. Particularly popular and distinguished is José Saramago, recipient of the 1998 Nobel Prize in Literature.
What epic poem did Luís de Camões write?
Answer: "Os Lusíadas" (The Lusiads)
Context and question: Between October 14–16, 1964, Leonid Brezhnev and a small cadre of high-ranking Communist Party officials, deposed Khrushchev as Soviet government leader a day after Voskhod 1 landed, in what was called the "Wednesday conspiracy". The new political leaders, along with Korolev, ended the technologically troublesome Voskhod program, cancelling Voskhod 3 and 4, which were in the planning stages, and started concentrating on the race to the Moon. Voskhod 2 would end up being Korolev's final achievement before his death on January 14, 1966, as it would become the last of the many space firsts that demonstrated the USSR's domination in spacecraft technology during the early 1960s. According to historian Asif Siddiqi, Korolev's accomplishments marked "the absolute zenith of the Soviet space program, one never, ever attained since." There would be a two-year pause in Soviet piloted space flights while Voskhod's replacement, the Soyuz spacecraft, was designed and developed.
Korolev died on what date?
Answer:
January 14, 1966