Input: Read this: Equivalently, the smallness of the Planck constant reflects the fact that everyday objects and systems are made of a large number of particles. For example, green light with a wavelength of 555 nanometres (the approximate wavelength to which human eyes are most sensitive) has a frequency of 7014540000000000000♠️540 THz (7014540000000000000♠️5401012 Hz). Each photon has an energy E = hf = 6981358000000000000♠️3.581019 J. That is a very small amount of energy in terms of everyday experience, but everyday experience is not concerned with individual photons any more than with individual atoms or molecules. An amount of light compatible with everyday experience is the energy of one mole of photons; its energy can be computed by multiplying the photon energy by the Avogadro constant, NA 7023602200000000000♠️6.0221023 mol1. The result is that green light of wavelength 555 nm has an energy of 7005216000000000000♠️216 kJ/mol, a typical energy of everyday life.
Question: At about what wavelength of light are human eyes most sensitive?

Output: 555 nanometres

QUES: Tanzania: Dar es Salaam was the torch's only stop in Africa, on April 13. The relay began at the grand terminal of the TAZARA Railway, which was China's largest foreign aid project of the 1970s, and continued for 5 km through the old city to the Benjamin Mkapa National Stadium in Temeke, which was built with Chinese aid in 2005. The torch was lit by Vice-President Ali Mohamed Shein. About a thousand people followed the relay, waving the Olympic flag. The only noted instance of protest was Nobel Peace Prize laureate Wangari Maathai's withdrawal from the list of torchbearers, in protest against human rights abuses in Tibet.

Where was the only African destination for the torch?
What is the answer?
ANS: Dar es Salaam

QUES: The San Diego Symphony at Symphony Towers performs on a regular basis and is directed by Jahja Ling. The San Diego Opera at Civic Center Plaza, directed by Ian Campbell, was ranked by Opera America as one of the top 10 opera companies in the United States. Old Globe Theatre at Balboa Park produces about 15 plays and musicals annually. The La Jolla Playhouse at UCSD is directed by Christopher Ashley. Both the Old Globe Theatre and the La Jolla Playhouse have produced the world premieres of plays and musicals that have gone on to win Tony Awards or nominations on Broadway. The Joan B. Kroc Theatre at Kroc Center's Performing Arts Center is a 600-seat state-of-the-art theatre that hosts music, dance, and theatre performances. The San Diego Repertory Theatre at the Lyceum Theatres in Horton Plaza produces a variety of plays and musicals. Hundreds of movies and a dozen TV shows have been filmed in San Diego, a tradition going back as far as 1898.
How far back to San Francisco's roots in the arts and theater sector go?

ANS: unanswerable

The first book printed in France, Epistolae ("Letters"), by Gasparinus de Bergamo (Gasparino da Barzizza), was published in Paris in 1470 by the press established by Johann Heynlin. Since then, Paris has been the centre of the French publishing industry, the home of some of the world's best-known writers and poets, and the setting for many classic works of French literature. Almost all the books published in Paris in the Middle Ages were in Latin, rather than French. Paris did not become the acknowledged capital of French literature until the 17th century, with authors such as Boileau, Corneille, La Fontaine, Moliere, Racine, several coming from the provinces, and the foundation of the Academie francaise. In the 18th century, the literary life of Paris revolved around the cafes and salons, and was dominated by Voltaire, Jean-Jacques Rousseau, Pierre de Marivaux, and Beaumarchais.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was the title of the first book printed in France?
Ah, so.. Epistolae

Question: By the end of the decade a distinct genre of hard rock was emerging with bands like Led Zeppelin, who mixed the music of early rock bands with a more hard-edged form of blues rock and acid rock on their first two albums Led Zeppelin (1969) and Led Zeppelin II (1969), and Deep Purple, who began as a progressive rock group but achieved their commercial breakthrough with their fourth and distinctively heavier album, In Rock (1970). Also significant was Black Sabbath's Paranoid (1970), which combined guitar riffs with dissonance and more explicit references to the occult and elements of Gothic horror. All three of these bands have been seen as pivotal in the development of heavy metal, but where metal further accentuated the intensity of the music, with bands like Judas Priest following Sabbath's lead into territory that was often "darker and more menacing", hard rock tended to continue to remain the more exuberant, good-time music.
Try to answer this question if possible: Which group did not achieve a commercial breakthrough in 1970?
Answer: unanswerable

Problem: A series of low-lying annexes (largely hidden) flank both ends. Also in the square are the glass-faced Planalto Palace housing the presidential offices, and the Palace of the Supreme Court. Farther east, on a triangle of land jutting into the lake, is the Palace of the Dawn (Palacio da Alvorada; the presidential residence). Between the federal and civic buildings on the Monumental Axis is the city's cathedral, considered by many to be Niemeyer's finest achievement (see photographs of the interior). The parabolically shaped structure is characterized by its 16 gracefully curving supports, which join in a circle 115 feet (35 meters) above the floor of the nave; stretched between the supports are translucent walls of tinted glass. The nave is entered via a subterranean passage rather than conventional doorways. Other notable buildings are Buriti Palace, Itamaraty Palace, the National Theater, and several foreign embassies that creatively embody features of their national architecture. The Brazilian landscape architect Roberto Burle Marx designed landmark modernist gardens for some of the principal buildings.
What does 'Palacio da Alvorada' mean?
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Answer:
Palace of the Dawn