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How many airlines founded Star Alliance? Answer with the whole number only.
What is the capital of Ethiopia? Answer with the city name only.
In what year did the Philae lander touch down on a comet? Answer with the four-digit year only.
Which planet is closest to the Sun? Answer with the name only.
In what year did Erwin Schrodinger publish his wave equation? Answer with the four-digit year only.
In what year did Werner Heisenberg publish the uncertainty principle? Answer with the four-digit year only.
Which astronomer formulated the three laws of planetary motion? Answer with the surname only.
Which numbered law of motion of Newton is usually written F = ma? Answer with the whole number only.
In what year did Michael Faraday discover electromagnetic induction? Answer with the four-digit year only.
In what year did the Airbus A350 enter commercial service? Answer with the four-digit year only.
In what year did Japan Airlines Flight 123 crash, the deadliest single-aircraft accident? Answer with the four-digit year only.
Who was the first American to orbit the Earth? Answer with the surname only.
Photons have zero rest mass. Answer true or false.
In what year was the European Space Agency established? Answer with the four-digit year only.
What is the two-character IATA code of Singapore Airlines? Answer with the two-character code only.
How many engines does the Airbus A380 have? Answer with the whole number only.
The equator passes through Brazil. Answer true or false.
In what year did Monarch Airlines collapse? Answer with the four-digit year only.
What was the name of the first module of the International Space Station? Answer with the name only.
In what year did Czechoslovakia split into the Czech Republic and Slovakia? Answer with the four-digit year only.
How many neutrons are in the nucleus of uranium-238? Answer with the whole number only.
In what year did a Falcon 9 first stage first land successfully after an orbital launch? Answer with the four-digit year only.
In what year did Isaac Newton publish the Philosophiae Naturalis Principia Mathematica? Answer with the four-digit year only.
How many pascals are in one standard atmosphere, exactly? Answer with the whole number only.
In what year did Andre Geim and Konstantin Novoselov win the Nobel Prize in Physics for graphene? Answer with the four-digit year only.