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In what year was Sputnik 1 launched? Answer with the four-digit year only.
In what year did Albert Einstein present the field equations of general relativity? Answer with the four-digit year only.
What is the largest ocean on Earth? Answer with the ocean name only, without the word Ocean.
What is the SI unit of magnetic flux density? Answer with the unit name only, in lowercase.
In which country is Mount Kilimanjaro? Answer with the country name only.
What is the capital of Canada? Answer with the city name only.
What is the smallest US state by area? Answer with the name only.
In what year did the Obninsk plant in the Soviet Union become the first nuclear power station to supply an electricity grid? Answer with the four-digit year only.
What is the capital of Argentina? Answer with the city name only.
In what year did the Airbus A321XLR enter commercial service? Answer with the four-digit year only.
Which company builds the Falcon 9 rocket? Answer with the name only.
What is the SI unit of electrical capacitance? Answer with the unit name only, in lowercase.
In what year was the Mir space station deorbited? Answer with the four-digit year only.
In what year did Arthur Eddington's solar eclipse expedition measure the bending of starlight? Answer with the four-digit year only.
In what year did Max Planck present his quantum hypothesis for black-body radiation? Answer with the four-digit year only.
What is the two-character IATA code of Korean Air? Answer with the two-character code only.
How many sovereign countries in Africa are UN member states? Answer with the whole number only.
What is the IATA code of Tokyo Haneda Airport? Answer with the three-letter code only.
In what year did the Boeing 737 make its first flight? Answer with the four-digit year only.
In what year did Chang'e 4 make the first soft landing on the far side of the Moon? Answer with the four-digit year only.
Who discovered Pluto? Answer with the surname only.
What is the SI unit of radioactivity? Answer with the unit name only, in lowercase.
Which company made the experimental antibody cocktail given to Donald Trump in October 2020? Answer with the name only.
Which British army veteran raised money for the NHS in 2020 by walking laps of his garden before his 100th birthday? Answer with the surname only.
Who discovered radioactivity in uranium in 1896? Answer with the surname only.