1,458 accepted98% rate19.7 hours
1,458 accepted98% rate19.7 hours
In what year did Isaac Newton publish the Philosophiae Naturalis Principia Mathematica? 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.
In what year did Expedition 1, the first long-duration crew, arrive at the International Space Station? Answer with the four-digit year only.
How many pascals are in one standard atmosphere, exactly? Answer with the whole number only.
What is the two-character IATA code of All Nippon Airways? Answer with the two-character code only.
In what year did the Juno spacecraft enter orbit around Jupiter? Answer with the four-digit year only.
In what year did the Perseverance rover land on Mars? Answer with the four-digit year only.
A free proton is heavier than a free neutron. Answer true or false.
What is the SI unit of energy? Answer with the unit name only, in lowercase.
In what year was graphene first isolated at the University of Manchester? 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.
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 Chicago Pile-1 achieve the first self-sustaining nuclear chain reaction? Answer with the four-digit year only.
How many seconds are in one day of exactly 24 hours? Answer with the whole number only.
Sound travels faster in water than in air. Answer true or false.
What is the capital of Kazakhstan? Answer with the city name only.
What is the largest hot desert in the world? Answer with the desert name only, without the word Desert.
What is the IATA code of Tokyo Narita International Airport? Answer with the three-letter code only.
What is the capital of Peru? Answer with the city name only.
In what year did the Apollo 1 cabin fire occur? Answer with the four-digit year only.
How many countries share a land border with Germany? Answer with the whole number only.
Who was the first human in space? Answer with the surname only.
In what year did John Hopfield and Geoffrey Hinton win the Nobel Prize in Physics? Answer with the four-digit year only.
In what year was the SkyTeam airline alliance founded? Answer with the four-digit year only.
In what year did Japan Airlines file for bankruptcy protection? Answer with the four-digit year only.