In what year was the Three Mile Island nuclear accident? Answer with the four-digit year only.
In what year did Wilhelm Roentgen discover X-rays? Answer with the four-digit year only.
In what year did Wilhelm Roentgen discover X-rays? Answer with the four-digit year only.
In what year did Wilhelm Roentgen discover X-rays? Answer with the four-digit year only.
In what year did Wilhelm Roentgen discover X-rays? Answer with the four-digit year only.
How many meters is one astronomical unit, as defined exactly by the IAU in 2012? Answer with the whole number only.
How many meters is one astronomical unit, as defined exactly by the IAU in 2012? Answer with the whole number only.
What is the capital of Ghana? Answer with the city name only.
What is the capital of Ghana? Answer with the city name only.
What is the capital of Finland? Answer with the city name only.
What is the capital of Finland? Answer with the city name only.
What is the capital of Finland? Answer with the city name only.
What is the capital of Finland? Answer with the city name only.