The problem: Answer a question about this article:
The bel (B) and the smaller decibel (dB) are units of measurement of sound intensity invented by Bell Labs and named after him. [N 28] Since 1976 the IEEE's Alexander Graham Bell Medal has been awarded to honor outstanding contributions in the field of telecommunications.
What lab invented the term "bel."
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The answer: Bell Labs

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The spectrum emitted by a blackbody radiator at temperatures of incandescent bulbs does not match the sensitivity characteristics of the human eye; the light emitted does not appear white, and most is not in the range of wavelengths at which the eye is most sensitive. Tungsten filaments radiate mostly infrared radiation at temperatures where they remain solid below 3,695 K (3,422 C; 6,191 F). Donald L. Klipstein explains it this way: "An ideal thermal radiator produces visible light most efficiently at temperatures around 6,300 C (6,600 K; 11,400 F). Even at this high temperature, a lot of the radiation is either infrared or ultraviolet, and the theoretical luminous efficacy (LER) is 95 lumens per watt." No known material can be used as a filament at this ideal temperature, which is hotter than the sun's surface. An upper limit for incandescent lamp luminous efficacy (LER) is around 52 lumens per watt, the theoretical value emitted by tungsten at its melting point.
What is the theoretical LER value of tungsten at its melting point?
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The answer: 52 lumens per watt

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In philosophy, idealism is the group of philosophies which assert that reality, or reality as we can know it, is fundamentally mental, mentally constructed, or otherwise immaterial. Epistemologically, idealism manifests as a skepticism about the possibility of knowing any mind-independent thing. In a sociological sense, idealism emphasizes how human ideasespecially beliefs and valuesshape society. As an ontological doctrine, idealism goes further, asserting that all entities are composed of mind or spirit. Idealism thus rejects physicalist and dualist theories that fail to ascribe priority to the mind.
What types of things are idealist philosophies skeptical about?
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The answer: mind-independent

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The first Roman republican wars were wars of both expansion and defence, aimed at protecting Rome itself from neighbouring cities and nations and establishing its territory in the region. Initially, Rome's immediate neighbours were either Latin towns and villages, or else tribal Sabines from the Apennine hills beyond. One by one Rome defeated both the persistent Sabines and the local cities, both those under Etruscan control and those that had cast off their Etruscan rulers. Rome defeated Latin cities in the Battle of Lake Regillus in 496 BC, the Battle of Mons Algidus in 458 BC, the Battle of Corbione in 446 BC, the Battle of Aricia, and especially the Battle of the Cremera in 477 BC wherein it fought against the most important Etruscan city of Veii.
What Roman battle took place in the year 446 BC?
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The answer:
the Battle of Corbione