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In what year was Ivy Mike, the first full-scale hydrogen bomb test, detonated? Answer with the four-digit year only.
What is the SI unit of magnetic flux? Answer with the unit name only, in lowercase.
What is the capital of Ethiopia? Answer with the city name only.
How many natural moons does Mars have? Answer with the whole number only.
In what year did Werner Heisenberg publish the uncertainty principle? Answer with the four-digit year only.
What is the two-character IATA code of Singapore Airlines? Answer with the two-character code only.
Who was the first American to orbit the Earth? Answer with the surname only.
The equator passes through Brazil. Answer true or false.
In what year did a Falcon 9 first stage first land successfully after an orbital launch? 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 the Boeing 777 enter commercial service? Answer with the four-digit year only.
In what year did the Perseverance rover land on Mars? Answer with the four-digit year only.
In what year was James Chadwick awarded the Nobel Prize in Physics? Answer with the four-digit year only.
Concorde cruised faster than the speed of sound. Answer true or false.
What is the largest hot desert in the world? Answer with the desert name only, without the word Desert.
In what year did the Apollo 1 cabin fire occur? Answer with the four-digit year only.
How many member states does the European Union have, as of 2025? Answer with the whole number only.
In what year did the Channel Tunnel open? Answer with the four-digit year only.
What is the two-character IATA code of Air France? Answer with the two-character code only.
What is the height of Mount Kilimanjaro in meters, as usually cited? Answer with the whole number only.
In what year did Mars Pathfinder land on Mars with the Sojourner rover? Answer with the four-digit year only.
What is the capital of Venezuela? Answer with the city name only.
How many Galilean moons of Jupiter are there? Answer with the whole number only.
In what year did Carl Anderson discover the positron? Answer with the four-digit year only.
What is the standard mains frequency of the electricity grid in the United States, in hertz? Answer with the whole number only.