Here is a question about this article: The only cosmetic difference between an RLV disc and a regular factory-pressed LaserDiscs is their reflective purple-violet (or blue with some RLV discs) color resulting from the dye embedded in the reflective layer of the disc to make it recordable, as opposed to the silver mirror appearance of regular LDs. The purplish color of RLVs is very similar to DVD-R and DVD+R discs. RLVs were popular for making short-run quantities of LaserDiscs for specialized applications such as interactive kiosks and flight simulators.
What is the answer to this question: Why do RLV discs have a blue or purple reflective color?
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So... to make it recordable, as opposed to the silver mirror appearance of regular LDs

Here is a question about this article: In 2007, however, a large current account deficit and rising inflation put pressure on Estonia's currency, which was pegged to the Euro, highlighting the need for growth in export-generating industries. Estonia exports mainly machinery and equipment, wood and paper, textiles, food products, furniture, and metals and chemical products. Estonia also exports 1.562 billion kilowatt hours of electricity annually. At the same time Estonia imports machinery and equipment, chemical products, textiles, food products and transportation equipment. Estonia imports 200 million kilowatt hours of electricity annually.
What is the answer to this question: When did a huge deficit and rising inflation place pressure on Estonia's currency?
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So... 2007

Here is a question about this article: In 2010, Boston was estimated to have 617,594 residents (a density of 12,200 persons/sq mile, or 4,700/km2) living in 272,481 housing units a 5% population increase over 2000. The city is the third most densely populated large U.S. city of over half a million residents. Some 1.2 million persons may be within Boston's boundaries during work hours, and as many as 2 million during special events. This fluctuation of people is caused by hundreds of thousands of suburban residents who travel to the city for work, education, health care, and special events.
What is the answer to this question: What can the population of Boston rech during special events?
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So...
2 million