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In what year did Henri Becquerel discover radioactivity? Answer with the four-digit year only.
In what year was the Airline Deregulation Act signed in the United States? Answer with the four-digit year only.
In which country is the city of Timbuktu? Answer with the country name only.
What is the IATA code of Dubai International Airport? Answer with the three-letter code only.
The Boeing 747 has three engines. Answer true or false.
In what year did Isaac Newton publish Opticks? Answer with the four-digit year only.
Greenland is part of the Kingdom of Denmark. Answer true or false.
In which country is Machu Picchu? Answer with the country name only.
Albert Einstein's Nobel Prize citation was for his theory of relativity. Answer true or false.
How many US states border Mexico? Answer with the whole number only.
How many spacetime dimensions does M-theory have? Answer with the whole number only.
In what year did Paul Dirac publish his relativistic equation for the electron? Answer with the four-digit year only.
What is the largest country in the world by area? Answer with the country name only.
How many engines did the McDonnell Douglas DC-10 have? Answer with the whole number only.
What is the two-character IATA code of Etihad Airways? Answer with the two-character code only.
How many states does Australia have, not counting its territories? Answer with the whole number only.
What is the two-character IATA code of Lufthansa? Answer with the two-character code only.
Whose constant, symbol h, relates a photon's energy to its frequency? Answer with the surname only.
How many planets in the Solar System have ring systems? Answer with the whole number only.
Which airline alliance does British Airways belong to? Answer with the alliance's full name.
What is the two-character IATA code of China Eastern Airlines? Answer with the two-character code only.
Which particle carries the electromagnetic force? Answer with the particle name only, in lowercase.
Australia is both a country and a continent. Answer true or false.
In what year did Pierre Agostini, Ferenc Krausz and Anne L'Huillier win the Nobel Prize in Physics for attosecond light pulses? Answer with the four-digit year only.
In what year did the Airbus A380 enter commercial service? Answer with the four-digit year only.