This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

[Q]: In 1872, Russian Alexander Lodygin invented an incandescent light bulb and obtained a Russian patent in 1874. He used as a burner two carbon rods of diminished section in a glass receiver, hermetically sealed, and filled with nitrogen, electrically arranged so that the current could be passed to the second carbon when the first had been consumed. Later he lived in the USA, changed his name to Alexander de Lodyguine and applied and obtained patents for incandescent lamps having chromium, iridium, rhodium, ruthenium, osmium, molybdenum and tungsten filaments, and a bulb using a molybdenum filament was demonstrated at the world fair of 1900 in Paris.
[A]: Who patented an incandescent light bulb in Russia in 1874?


[Q]: Tesla was renowned for his achievements and showmanship, eventually earning him a reputation in popular culture as an archetypal "mad scientist". His patents earned him a considerable amount of money, much of which was used to finance his own projects with varying degrees of success.:121,154 He lived most of his life in a series of New York hotels, through his retirement. Tesla died on 7 January 1943. His work fell into relative obscurity after his death, but in 1960 the General Conference on Weights and Measures named the SI unit of magnetic flux density the tesla in his honor. There has been a resurgence in popular interest in Tesla since the 1990s.
[A]: What year did Tesla die? 


[Q]: Yale and New Haven are working to build a medical and biotechnology research hub in the city and Greater New Haven region, and are succeeding to some extent.[citation needed] The city, state and Yale together run Science Park, a large site three blocks northwest of Yale's Science Hill campus. This multi-block site, approximately bordered by Mansfield Street, Division Street, and Shelton Avenue, is the former home of Winchester's and Olin Corporation's 45 large-scale factory buildings. Currently, sections of the site are large-scale parking lots or abandoned structures, but there is also a large remodeled and functioning area of buildings (leased primarily by a private developer) with numerous Yale employees, financial service and biotech companies.
[A]:
Yale and New Haven are conjointly attempting to build the area into a research hub for what two industries?