Problem: YouTube:

Observing that face-to-face communication of the type that online videos convey has been "fine-tuned by millions of years of evolution", TED curator Chris Anderson referred to several YouTube contributors and asserted that "what Gutenberg did for writing, online video can now do for face-to-face communication". Anderson asserted that it's not far-fetched to say that online video will dramatically accelerate scientific advance, and that video contributors may be about to launch "the biggest learning cycle in human history." In education, for example, the Khan Academy grew from YouTube video tutoring sessions for founder Salman Khan's cousin into what Forbes' Michael Noer called "the largest school in the world", with technology poised to disrupt how people learn.

What did Salman Noer found?
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A: unanswerable

Problem: Carnival:

While medieval pageants and festivals such as Corpus Christi were church-sanctioned, Carnival was also a manifestation of medieval folk culture. Many local Carnival customs are claimed to derive from local pre-Christian rituals, such as elaborate rites involving masked figures in the SwabianAlemannic Fastnacht. However, evidence is insufficient to establish a direct origin from Saturnalia or other ancient festivals. No complete accounts of Saturnalia survive and the shared features of feasting, role reversals, temporary social equality, masks and permitted rule-breaking do not necessarily constitute a coherent festival or link these festivals. These similarities may represent a reservoir of cultural resources that can embody multiple meanings and functions. For example, Easter begins with the resurrection of Jesus, followed by a liminal period and ends with rebirth. Carnival reverses this as King Carnival comes to life, a liminal period follows before his death. Both feasts are calculated by the lunar calendar. Both Jesus and King Carnival may be seen as expiatory figures who make a gift to the people with their deaths. In the case of Jesus, the gift is eternal life in heaven and in the case of King Carnival, the acknowledgement that death is a necessary part of the cycle of life. Besides Christian anti-Judaism, the commonalities between church and Carnival rituals and imagery suggest a common root. Christ's passion is itself grotesque: Since early Christianity Christ is figured as the victim of summary judgement, is tortured and executed by Romans before a Jewish mob ("His blood is on us and on our children!" Matthew 27:2425). Holy Week processions in Spain include crowds who vociferously insult the figure of Jesus. Irreverence, parody, degradation and laughter at a tragicomic effigy God can be seen as intensifications of the sacred order. In 1466, the Catholic Church under Pope Paul II revieved customs of the Saturnalia carnival: Jews were forced to race naked through the streets of the city of Rome. "Before they were to run, the Jews were richly fed, so as to make the race more difficult for them and at the same time more amusing for spectators. They ran amid Rome's taunting shrieks and peals of laughter, while the Holy Father stood upon a richly ornamented balcony and laughed heartily", an eyewitness reports.

What festival did no complete accounts describing survive?
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A: Saturnalia

Problem: Annelid:

The setae ("hairs") of annelids project out from the epidermis to provide traction and other capabilities. The simplest are unjointed and form paired bundles near the top and bottom of each side of each segment. The parapodia ("limbs") of annelids that have them often bear more complex chetae at their tips for example jointed, comb-like or hooked. Chetae are made of moderately flexible -chitin and are formed by follicles, each of which has a chetoblast ("hair-forming") cell at the bottom and muscles that can extend or retract the cheta. The chetoblasts produce chetae by forming microvilli, fine hair-like extensions that increase the area available for secreting the cheta. When the cheta is complete, the microvilli withdraw into the chetoblast, leaving parallel tunnels that run almost the full length of the cheta. Hence annelids' chetae are structurally different from the setae ("bristles") of arthropods, which are made of the more rigid -chitin, have a single internal cavity, and are mounted on flexible joints in shallow pits in the cuticle.

What are setae never considered?
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A: unanswerable

Problem: Web browser:

In the case of http, https, file, and others, once the resource has been retrieved the web browser will display it. HTML and associated content (image files, formatting information such as CSS, etc.) is passed to the browser's layout engine to be transformed from markup to an interactive document, a process known as "rendering". Aside from HTML, web browsers can generally display any kind of content that can be part of a web page. Most browsers can display images, audio, video, and XML files, and often have plug-ins to support Flash applications and Java applets. Upon encountering a file of an unsupported type or a file that is set up to be downloaded rather than displayed, the browser prompts the user to save the file to disk.

Browsers have you save to disk so they can support what?
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A:
unanswerable