Article: LaserDisc was a composite video format: the luminance (black and white) and chrominance (color) information were transmitted in one signal, separated by the receiver. While good comb filters can do so adequately, these two signals cannot be completely separated. On DVDs, data is stored in the form of digital blocks which make up each independent frame. The signal produced is dependent on the equipment used to master the disc. Signals range from composite and split, to YUV and RGB. Depending upon which format is used, this can result in far higher fidelity, particularly at strong color borders or regions of high detail (especially if there is moderate movement in the picture) and low-contrast details like skin tones, where comb filters almost inevitably smudge some detail.

Question: In what areas are comb filters most likely to lose detail?
Ans: low-contrast details like skin tones


Article: Carnival in the Netherlands is called Carnaval, Vastenavond or Vastelaovend(j), and is most celebrated in traditionally Catholic regions, mainly the southern provinces North Brabant and Limburg. Dutch Carnaval is officially celebrated on the Sunday through Tuesday preceding Ash Wednesday. Although traditions vary from town to town, some common characteristics of Dutch Carnaval include a parade, a "prince" plus cortège ("Jester/adjutant and Council of 11"), a Peasant Wedding (boerenbruiloft), and eating herring (haring happen) on Ash Wednesday.

Question: Dutch Carnaval is celebrated until which Wednesday?
Ans: Ash


Article: From 1950 to 2011, world population increased from 2.5 billion to 7 billion and is forecast to reach a plateau of more than 9 billion during the 21st century. Sir David King, former chief scientific adviser to the UK government, told a parliamentary inquiry: "It is self-evident that the massive growth in the human population through the 20th century has had more impact on biodiversity than any other single factor." At least until the middle of the 21st century, worldwide losses of pristine biodiverse land will probably depend much on the worldwide human birth rate.

Question: What year started the increase of population to 7 billion?
Ans: From 1950


Article: On November 6, 2013, Google implemented a new comment system that requires all YouTube users to use a Google+ account in order to comment on videos and making the comment system Google+ oriented. The changes are in large part an attempt to address the frequent criticisms of the quality and tone of YouTube comments. They give creators more power to moderate and block comments, and add new sorting mechanisms to ensure that better, more relevant discussions appear at the top. The new system restored the ability to include URLs in comments, which had previously been removed due to problems with abuse. In response, YouTube co-founder Jawed Karim posted the question "why the fuck do I need a google+ account to comment on a video?" on his YouTube channel to express his negative opinion of the change. The official YouTube announcement received 20,097 "thumbs down" votes and generated more than 32,000 comments in two days. Writing in the Newsday blog Silicon Island, Chase Melvin noted that "Google+ is nowhere near as popular a social media network as Facebook, but it's essentially being forced upon millions of YouTube users who don't want to lose their ability to comment on videos" and "Discussion forums across the Internet are already bursting with outcry against the new comment system". In the same article Melvin goes on to say:

Question: There were better sorting functions put in place in 2013 to make sure what kind of comments appeared on top?
Ans:
more relevant discussions