Problem: Space Race:

On April 2, 1958, President Eisenhower reacted to the Soviet space lead in launching the first satellite, by recommending to the US Congress that a civilian agency be established to direct nonmilitary space activities. Congress, led by Senate Majority Leader Lyndon B. Johnson, responded by passing the National Aeronautics and Space Act, which Eisenhower signed into law on July 29, 1958. This law turned the National Advisory Committee on Aeronautics into the National Aeronautics and Space Administration (NASA). It also created a Civilian-Military Liaison Committee, chaired by the President, responsible for coordinating the nation's civilian and military space programs.

The first US satellite was launched on what date?
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A: April 2, 1958

Problem: Muammar Gaddafi:

The early and mid-1980s saw economic trouble for Libya; from 1982 to 1986, the country's annual oil revenues dropped from $21 billion to $5.4 billion. Focusing on irrigation projects, 1983 saw construction start on "Gaddafi's Pet Project", the Great Man-Made River; although designed to be finished by the end of the decade, it remained incomplete at the start of the 21st century. Military spending increased, while other administrative budgets were cut back. Libya had long supported the FROLINAT militia in neighbouring Chad, and in December 1980, re-invaded Chad at the request of the Frolinat-controlled GUNT government to aid in the civil war; in January 1981, Gaddafi suggested a political merger. The Organisation of African Unity (OAU) rejected this, and called for a Libyan withdrawal, which came about in November 1981. The civil war resumed, and so Libya sent troops back in, clashing with French forces who supported the southern Chadian forces. Many African nations had tired of Libya's policies of interference in foreign affairs; by 1980, nine African states had cut off diplomatic relations with Libya, while in 1982 the OAU cancelled its scheduled conference in Tripoli in order to prevent Gaddafi gaining chairmanship. Proposing political unity with Morocco, in August 1984, Gaddafi and Moroccan monarch Hassan II signed the Oujda Treaty, forming the Arab-African Union; such a union was considered surprising due to the strong political differences and longstanding enmity that existed between the two governments. Relations remained strained, particularly due to Morocco's friendly relations with the U.S. and Israel; in August 1986, Hassan abolished the union. Domestic threats continued to plague Gaddafi; in May 1984, his Bab al-Azizia home was unsuccessfully attacked by a joint NFSLMuslim Brotherhood militia, and in the aftermath 5000 dissidents were arrested.

Who was the ruler of Morocco in 1984?
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A: Hassan II

Problem: Antenna (radio):

Another extreme case of impedance matching occurs when using a small loop antenna (usually, but not always, for receiving) at a relatively low frequency where it appears almost as a pure inductor. Resonating such an inductor with a capacitor at the frequency of operation not only cancels the reactance but greatly magnifies the very small radiation resistance of such a loop.[citation needed] This is implemented in most AM broadcast receivers, with a small ferrite loop antenna resonated by a capacitor which is varied along with the receiver tuning in order to maintain resonance over the AM broadcast band

When using a small loop antenna at a low frequency, what may occur?
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A: impedance matching

Problem: Tibet:

This period also saw some contacts with Jesuits and Capuchins from Europe, and in 1774 a Scottish nobleman, George Bogle, came to Shigatse to investigate prospects of trade for the British East India Company. However, in the 19th century the situation of foreigners in Tibet grew more tenuous. The British Empire was encroaching from northern India into the Himalayas, the Emirate of Afghanistan and the Russian Empire were expanding into Central Asia and each power became suspicious of the others' intentions in Tibet.

When did the British and Russian empires begin encroaching on Tibet?
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A:
19th century