537 accepted99% rate10.3 hours
537 accepted99% rate10.3 hours
How many hexagonal segments make up the James Webb Space Telescope's primary mirror? Answer with the whole number only.
In what year was the Nobel Prize in Physics awarded for the invention of efficient blue LEDs? Answer with the four-digit year only.
Which sea lies between Italy and the Balkan Peninsula? Answer with the sea name only, without the word Sea.
How many meters is one astronomical unit, as defined exactly by the IAU in 2012? Answer with the whole number only.
In what year was SpaceX founded? Answer with the four-digit year only.
KLM is the flag carrier of Belgium. Answer true or false.
In what year did Concorde enter commercial service? Answer with the four-digit year only.
How many letters long is an ICAO airline designator? Answer with the whole number only.
How many up quarks does a proton contain? Answer with the whole number only.
What is the SI base unit of thermodynamic temperature? Answer with the unit name only, in lowercase.
In what year did Stephen Hawking publish his prediction that black holes emit radiation, in Nature? Answer with the four-digit year only.
How many territories does Canada have? Answer with the whole number only.
In what year was Emirates airline founded? Answer with the four-digit year only.
In what year was Aeroflot founded? Answer with the four-digit year only.
In what year did Alaska Air Group complete its acquisition of Hawaiian Airlines? Answer with the four-digit year only.
Venus is the hottest planet in the Solar System. Answer true or false.
In what year was KLM founded? Answer with the four-digit year only.
In what year was CERN founded? Answer with the four-digit year 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 engines does the Boeing 747 have? Answer with the whole number only.
In what year did Theodore Maiman demonstrate the first working laser? Answer with the four-digit year only.
What is the flag carrier airline of the Netherlands? Answer with the airline name only.
In what year did Apollo 13 suffer its oxygen tank explosion? Answer with the four-digit year only.
What is the capital of New Zealand? Answer with the city name only.