Question: Calcined uranium yellowcake, as produced in many large mills, contains a distribution of uranium oxidation species in various forms ranging from most oxidized to least oxidized. Particles with short residence times in a calciner will generally be less oxidized than those with long retention times or particles recovered in the stack scrubber. Uranium content is usually referenced to U
3O
8, which dates to the days of the Manhattan project when U
3O
8 was used as an analytical chemistry reporting standard.
Try to answer this question if possible: What will generally be less oxidized than those with long retention times or particles replaced in the stack scrubber?
Answer: unanswerable
Question: The 2011 Business Software Alliance Piracy Study Standard, estimates the total commercial value of illegally copied software to be at $59 billion in 2010, with emerging markets accounting for $31.9 billion, over half of the total. Furthermore, mature markets for the first time received less PC shipments than emerging economies in 2010, making emerging markets now responsible for more than half of all computers in use worldwide. In addition with software infringement rates of 68 percent comparing to 24 percent of mature markets, emerging markets thus possess the majority of the global increase in the commercial value of counterfeit software. China continues to have the highest commercial value of such software at $8.9 billion among developing countries and second in the world behind the US at $9.7 billion in 2011. In 2011, the Business Software Alliance announced that 83 percent of software deployed on PCs in Africa has been pirated (excluding South Africa).
Try to answer this question if possible: What did the established markets receive for the first time?
Answer: less PC shipments than emerging economies
Question: Zinc chloride is often added to lumber as a fire retardant and can be used as a wood preservative. It is also used to make other chemicals. Zinc methyl (Zn(CH3)
2) is used in a number of organic syntheses. Zinc sulfide (ZnS) is used in luminescent pigments such as on the hands of clocks, X-ray and television screens, and luminous paints. Crystals of ZnS are used in lasers that operate in the mid-infrared part of the spectrum. Zinc sulfate is a chemical in dyes and pigments. Zinc pyrithione is used in antifouling paints.
Try to answer this question if possible: What is the feature of zinc sufide that makes it useful in television screens?
Answer: luminescent pigments
Question: Bell was a supporter of aerospace engineering research through the Aerial Experiment Association (AEA), officially formed at Baddeck, Nova Scotia, in October 1907 at the suggestion of his wife Mabel and with her financial support after the sale of some of her real estate. The AEA was headed by Bell and the founding members were four young men: American Glenn H. Curtiss, a motorcycle manufacturer at the time and who held the title "world's fastest man", having ridden his self-constructed motor bicycle around in the shortest time, and who was later awarded the Scientific American Trophy for the first official one-kilometre flight in the Western hemisphere, and who later became a world-renowned airplane manufacturer; Lieutenant Thomas Selfridge, an official observer from the U.S. Federal government and one of the few people in the army who believed that aviation was the future; Frederick W. Baldwin, the first Canadian and first British subject to pilot a public flight in Hammondsport, New York, and J.A.D. McCurdy Baldwin and McCurdy being new engineering graduates from the University of Toronto.
Try to answer this question if possible: What organization did Bell set up due to his interest in aerospace?
Answer:
Aerial Experiment Association