Question: This technique was very expensive, though, and could not be used for applications such as telemedicine, distance education, and business meetings. Attempts at using normal telephony networks to transmit slow-scan video, such as the first systems developed by AT&T Corporation, first researched in the 1950s, failed mostly due to the poor picture quality and the lack of efficient video compression techniques. The greater 1 MHz bandwidth and 6 Mbit/s bit rate of the Picturephone in the 1970s also did not achieve commercial success, mostly due to its high cost, but also due to a lack of network effect —with only a few hundred Picturephones in the world, users had extremely few contacts they could actually call to, and interoperability with other videophone systems would not exist for decades.
Is there an answer to this question: Why did using business meetings to transmit slow-scan video fail?

Answer: unanswerable


Question: In the early 1970s, the Miami disco sound came to life with TK Records, featuring the music of KC and the Sunshine Band, with such hits as "Get Down Tonight", "(Shake, Shake, Shake) Shake Your Booty" and "That's the Way (I Like It)"; and the Latin-American disco group, Foxy (band), with their hit singles "Get Off" and "Hot Number". Miami-area natives George McCrae and Teri DeSario were also popular music artists during the 1970s disco era. The Bee Gees moved to Miami in 1975 and have lived here ever since then. Miami-influenced, Gloria Estefan and the Miami Sound Machine, hit the popular music scene with their Cuban-oriented sound and had hits in the 1980s with "Conga" and "Bad Boys".
Is there an answer to this question: In what decade was disco popular?

Answer: 1970s


Question: Parisians tend to share the same movie-going trends as many of the world's global cities, with cinemas primarily dominated by Hollywood-generated film entertainment. French cinema comes a close second, with major directors (réalisateurs) such as Claude Lelouch, Jean-Luc Godard, and Luc Besson, and the more slapstick/popular genre with director Claude Zidi as an example. European and Asian films are also widely shown and appreciated. On 2 February 2000, Philippe Binant realised the first digital cinema projection in Europe, with the DLP CINEMA technology developed by Texas Instruments, in Paris.
Is there an answer to this question: When was the first digital cinema projection in Europe?

Answer: 2 February 2000


Question: Not all introduced species are invasive, nor all invasive species deliberately introduced. In cases such as the zebra mussel, invasion of US waterways was unintentional. In other cases, such as mongooses in Hawaii, the introduction is deliberate but ineffective (nocturnal rats were not vulnerable to the diurnal mongoose). In other cases, such as oil palms in Indonesia and Malaysia, the introduction produces substantial economic benefits, but the benefits are accompanied by costly unintended consequences.
Is there an answer to this question: What animals were not vulnerable to the zebra mussel?

Answer:
unanswerable