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In what year did the Boeing 707 enter commercial service? Answer with the four-digit year only.
The Moon has a thick atmosphere. Answer true or false.
How many regions does metropolitan France have? Answer with the whole number only.
Which planet is closest to the Sun? Answer with the name only.
In what year was Halley's Comet last at perihelion? Answer with the four-digit year only.
Which astronomer formulated the three laws of planetary motion? Answer with the surname only.
In what year did American Airlines and US Airways complete their merger? Answer with the four-digit year only.
How many natural moons does Mars have? 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 Cassini spacecraft end its mission by plunging into Saturn? Answer with the four-digit year only.
In what year was Ivy Mike, the first full-scale hydrogen bomb test, detonated? Answer with the four-digit year only.
In what year did the Philae lander touch down on a comet? Answer with the four-digit year only.
Photons have zero rest mass. Answer true or false.
Which numbered law of motion of Newton is usually written F = ma? Answer with the whole number only.
In what year did Werner Heisenberg publish the uncertainty principle? Answer with the four-digit year only.
In what year did Erwin Schrodinger publish his wave equation? Answer with the four-digit year only.
How many engines does the Airbus A380 have? Answer with the whole number only.
Who was the first American to orbit the Earth? Answer with the surname only.
What is the two-character IATA code of Singapore Airlines? Answer with the two-character code only.
How many US states border Canada? Answer with the whole number only.
In what year did Czechoslovakia split into the Czech Republic and Slovakia? 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 Isaac Newton publish the Philosophiae Naturalis Principia Mathematica? Answer with the four-digit year 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 Andre Geim and Konstantin Novoselov win the Nobel Prize in Physics for graphene? Answer with the four-digit year only.