Problem: Many other inventions marked Bell's later life, including groundbreaking work in optical telecommunications, hydrofoils and aeronautics. Although Bell was not one of the 33 founders of the National Geographic Society, he had a strong influence on the magazine while serving as the second president from January 7, 1898 until 1903.
What year did Bell become President of the National Geographic magazine?
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Answer: 1898

Problem: Despite competition from other materials, copper remains the preferred electrical conductor in nearly all categories of electrical wiring with the major exception being overhead electric power transmission where aluminium is often preferred. Copper wire is used in power generation, power transmission, power distribution, telecommunications, electronics circuitry, and countless types of electrical equipment. Electrical wiring is the most important market for the copper industry. This includes building wire, communications cable, power distribution cable, appliance wire, automotive wire and cable, and magnet wire. Roughly half of all copper mined is used to manufacture electrical wire and cable conductors. Many electrical devices rely on copper wiring because of its multitude of inherent beneficial properties, such as its high electrical conductivity, tensile strength, ductility, creep (deformation) resistance, corrosion resistance, low thermal expansion, high thermal conductivity, solderability, and ease of installation.
What liquid are most overhead electrical wires made out of?
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Answer: unanswerable

Problem: In the classical era, several ancient city-states such as Opone, Essina, Sarapion, Nikon, Malao, Damo and Mosylon near Cape Guardafui, which competed with the Sabaeans, Parthians and Axumites for the wealthy Indo-Greco-Roman trade, also flourished in Somalia.
Near what headland was Mosylon located?
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Answer:
Cape Guardafui