1,489 accepted94% rate23.7 hours
1,489 accepted94% rate23.7 hours
In what year did Clyde Cowan and Frederick Reines first detect the neutrino? Answer with the four-digit year only.
Which strait separates Spain from Morocco? Answer with the strait name only, without the words Strait of.
In what year did the Swissair fleet grounding occur? Answer with the four-digit year only.
Pluto is larger than Earth's Moon. Answer true or false.
What is the standard mains frequency of the electricity grid in the United States, in hertz? Answer with the whole number only.
Which moon of Jupiter is the most volcanically active body in the Solar System? Answer with the name only.
What is the capital of Nepal? Answer with the city name only.
In what year was sovereignty over Hong Kong transferred from the United Kingdom to China? Answer with the four-digit year only.
In what year was the first Bose-Einstein condensate produced in a laboratory? Answer with the four-digit year only.
The Amazon River flows into the Pacific Ocean. Answer true or false.
In which French city are the main final assembly lines for the Airbus A350 located? Answer with the city name only.
Which country entirely surrounds Lesotho? Answer with the country name only.
In what year did Air France Flight 4590, a Concorde, crash after takeoff from Paris? Answer with the four-digit year only.
In what year was the James Webb Space Telescope launched? Answer with the four-digit year only.
In what year did Chandrayaan-3 land near the lunar south pole? Answer with the four-digit year only.
What is the capital of Hungary? Answer with the city name only.
In what year did J. J. Thomson announce the discovery of the electron? Answer with the four-digit year only.
The mass of the Higgs boson is about how many GeV? Answer with the whole number rounded to the nearest GeV.
In what year did Paul Dirac and Erwin Schrodinger share the Nobel Prize in Physics? Answer with the four-digit year only.
What is the spin of the Higgs boson? Answer with the whole number only.
What is the SI unit of electric charge? Answer with the unit name only, in lowercase.
What is the capital of the US state of Florida? Answer with the city name only.
Who formulated the exclusion principle, which says two electrons cannot share the same quantum state? Answer with the surname only.
Around which numbered Sun-Earth Lagrange point does the James Webb Space Telescope orbit? Answer with the whole number only.
How many valence quarks does a proton contain? Answer with the whole number only.