Problem: Electric motor:

The first commutator DC electric motor capable of turning machinery was invented by the British scientist William Sturgeon in 1832. Following Sturgeon's work, a commutator-type direct-current electric motor made with the intention of commercial use was built by the American inventor Thomas Davenport, which he patented in 1837. The motors ran at up to 600 revolutions per minute, and powered machine tools and a printing press. Due to the high cost of primary battery power, the motors were commercially unsuccessful and Davenport went bankrupt. Several inventors followed Sturgeon in the development of DC motors but all encountered the same battery power cost issues. No electricity distribution had been developed at the time. Like Sturgeon's motor, there was no practical commercial market for these motors.

What necessary technical development had yet to occur to make electric motors useful?
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A: electricity distribution

Problem: Imperial College London is a public research university located in London, United Kingdom. It was founded by Prince Albert who envisioned an area composed of the Natural History Museum, Science Museum, Victoria and Albert Museum, Royal Albert Hall and the Imperial Institute. The Imperial Institute was opened by his wife, Queen Victoria, who laid the first stone. In 1907, Imperial College London was formed by Royal Charter, and soon joined the University of London, with a focus on science and technology. The college has expanded its coursework to medicine through mergers with St Mary's Hospital. In 2004, Queen Elizabeth II opened the Imperial College Business School. Imperial became an independent university from the University of London during its one hundred year anniversary.
Who helped to build the college?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Latin phrase on Northwestern's seal, Quaecumque sunt vera (Whatsoever things are true) is drawn from the Epistle of Paul to the Philippians 4:8, while the Greek phrase inscribed on the pages of an open book is taken from the Gospel of John 1:14: (The Word full of grace and truth). Purple became Northwestern's official color in 1892, replacing black and gold after a university committee concluded that too many other universities had used these colors. Today, Northwestern's official color is purple, although white is something of an official color as well, being mentioned in both the university's earliest song, Alma Mater (1907) ("Hail to purple, hail to white") and in many university guidelines.
What has been Northwestern's official color since 1892?
A: Purple

Context and question: The history of phonology may be traced back to the Ashtadhyayi, the Sanskrit grammar composed by Panini in the 4th century BC. In particular the Shiva Sutras, an auxiliary text to the Ashtadhyayi, introduces what can be considered a list of the phonemes of the Sanskrit language, with a notational system for them that is used throughout the main text, which deals with matters of morphology, syntax and semantics.
During what time period did Panini do his work?
Answer: 4th century BC

Question: The young Feynman was heavily influenced by his father, who encouraged him to ask questions to challenge orthodox thinking, and who was always ready to teach Feynman something new. From his mother he gained the sense of humor that he had throughout his life. As a child, he had a talent for engineering, maintained an experimental laboratory in his home, and delighted in repairing radios. When he was in grade school, he created a home burglar alarm system while his parents were out for the day running errands.
Is there an answer to this question: What electronic device was Feynman restricted from building?

Answer: unanswerable

QUES: A defect in the human homologue of the Drosophila "period" gene was identified as a cause of the sleep disorder FASPS (Familial advanced sleep phase syndrome), underscoring the conserved nature of the molecular circadian clock through evolution. Many more genetic components of the biological clock are now known. Their interactions result in an interlocked feedback loop of gene products resulting in periodic fluctuations that the cells of the body interpret as a specific time of the day.[citation needed]

What kind of clock does not have genetic functions?
What is the answer?
ANS:
unanswerable