Question: From his diagrams of a small number of particles interacting in spacetime, Feynman could then model all of physics in terms of the spins of those particles and the range of coupling of the fundamental forces. Feynman attempted an explanation of the strong interactions governing nucleons scattering called the parton model. The parton model emerged as a complement to the quark model developed by his Caltech colleague Murray Gell-Mann. The relationship between the two models was murky; Gell-Mann referred to Feynman's partons derisively as "put-ons". In the mid-1960s, physicists believed that quarks were just a bookkeeping device for symmetry numbers, not real particles, as the statistics of the Omega-minus particle, if it were interpreted as three identical strange quarks bound together, seemed impossible if quarks were real. The Stanford linear accelerator deep inelastic scattering experiments of the late 1960s showed, analogously to Ernest Rutherford's experiment of scattering alpha particles on gold nuclei in 1911, that nucleons (protons and neutrons) contained point-like particles that scattered electrons. It was natural to identify these with quarks, but Feynman's parton model attempted to interpret the experimental data in a way that did not introduce additional hypotheses. For example, the data showed that some 45% of the energy momentum was carried by electrically-neutral particles in the nucleon. These electrically-neutral particles are now seen to be the gluons that carry the forces between the quarks and carry also the three-valued color quantum number that solves the Omega-minus problem. Feynman did not dispute the quark model; for example, when the fifth quark was discovered in 1977, Feynman immediately pointed out to his students that the discovery implied the existence of a sixth quark, which was discovered in the decade after his death.
Try to answer this question if possible: What was discovered after the seventh quark?
Answer: unanswerable
Question: The category of Native American applies to the diverse group of people who lived in North America before European settlement. During the U.S. government's westward expansion, Native Americans were displaced from their land which had been their home for centuries. Instead, they were forced onto reservations which were far smaller and less productive. According to Brest, land belonging to Native Americans was reduced from 138 million acres in 1887 to 52 million acres in 1934. In 1990, the poverty rate for Native Americans was more than triple that of the whites and only 9.4% of Native Americans have completed a bachelor's degree as opposed to 25.2% of whites and 12.2% of African Americans.
Try to answer this question if possible: Which groups can be categorized as Native Americans?
Answer: people who lived in North America before European settlement
Question: Downtown New Haven, occupied by nearly 7,000 residents, has a more residential character than most downtowns. The downtown area provides about half of the city's jobs and half of its tax base and in recent years has become filled with dozens of new upscale restaurants, several of which have garnered national praise (such as Ibiza, recognized by Esquire and Wine Spectator magazines as well as the New York Times as the best Spanish food in the country), in addition to shops and thousands of apartments and condominium units which subsequently help overall growth of the city.
Try to answer this question if possible: Downtown New Haven contributes approximately how many jobs to the city?
Answer: about half
Question: Harry Caray's stamp on the team is perhaps even deeper than that of Brickhouse, although his 17-year tenure, from 1982 to 1997, was half as long. First, Caray had already become a well-known Chicago figure by broadcasting White Sox games for a decade, after having been a St Louis Cardinals icon for 25 years. Caray also had the benefit of being in the booth during the NL East title run in 1984, which was widely seen due to WGN's status as a cable-TV superstation. His trademark call of "Holy Cow!" and his enthusiastic singing of "Take me out to the ballgame" during the 7th inning stretch (as he had done with the White Sox) made Caray a fan favorite both locally and nationally.
Try to answer this question if possible: How long had Caray been a St Louis Cardinals icon?
Answer:
25 years