676 accepted98% of judged
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676 accepted98% rate8.7 hours
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676 accepted98% rate8.7 hours
Infrared light has a shorter wavelength than ultraviolet light. Answer true or false.
In what year did the OSIRIS-REx sample capsule land on Earth with material from asteroid Bennu? Answer with the four-digit year only.
The equator passes through India. Answer true or false.
How many kilometers long is each arm of a LIGO interferometer? Answer with the whole number only.
What is the capital of Turkey? Answer with the city name only.
What is the flag carrier airline of Ireland? Answer with the airline name only.
In what year was the Kepler space telescope launched? Answer with the four-digit year only.
In what year did Johannes Kepler publish Astronomia nova? Answer with the four-digit year only.
Who founded Virgin Atlantic? Answer with the surname only.
In what year did South Sudan become independent? Answer with the four-digit year only.
What is the capital of Iran? Answer with the city name only.
In what year did the Tenerife airport disaster, the deadliest accident in aviation history, occur? Answer with the four-digit year only.
In what year was Cathay Pacific founded? Answer with the four-digit year only.
In what year did Namibia become independent? Answer with the four-digit year only.
Who discovered the neutron in 1932? Answer with the surname only.
How many engines does the Boeing 777 have? Answer with the whole number only.
How many Nobel Prizes in Physics did John Bardeen win? Answer with the whole number only.
What is the capital of Vietnam? Answer with the city name only.
In what year did Alessandro Volta announce the voltaic pile, the first electric battery? Answer with the four-digit year only.
In what year did the Boeing 747 enter commercial service? Answer with the four-digit year only.
Bolivia is landlocked. Answer true or false.
What is the standard mains frequency of the electricity grid in continental Europe, in hertz? Answer with the whole number only.
In what year did the Airbus A320 enter commercial service? Answer with the four-digit year only.
What is the four-letter acronym of Japan's national space agency? Answer with the acronym only.
In what year did SpaceX fly astronauts for the first time, on the Demo-2 mission? Answer with the four-digit year only.