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Crazy numbers 2

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Quiz by XYU
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Last updated: July 31, 2024
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First submittedJuly 31, 2024
Times taken14
Average score53.3%
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The Planck constant
This relates the energy of light to its frequency.
The approximate value of the Hubble constant
This defines the speed in km/s of a galaxy 1 megaparsec away. Astronomers do not know the exact value, which could range from 69 to 74.
The ratio of the circumference of a circle to its diameter
The circumference of the Earth in miles
At the equator.
The pole vault world record in metres
As of July 2024.
An even number which was discovered several centuries ago in India
Number of red-billed queleas (a bird)
Number increases in the breeding season. It is the commonest wild bird in the world.
The total number of times Quizmaster's quizzes have been taken
As of July 2024.
Number of bones we "lose" from birth to adulthood due to some fusing together
Approximately. We have close to 300 when we are born.
The distance in miles from Earth to the moon
The shape of the orbit means it varies by 25,000 miles. Also, it's getting an inch further away every year.
The smallest number expressible as the sum of two different cubes in two different ways
9 and 10 cubed, and 12 and 1 cubed.
The thickness of the Earth's crust in miles, at its thinnest point
The mass of the Earth in kilograms
Approximately. There is a fair bit of uncertainty in this measurement.
The distance in light years to the furthest-away galaxy that we have found
That's 76 sextillion miles.
The world population in 1 AD
Some estimates are significantly higher.
0
1 billion
13.1 billion
170 million
1729
238,855
24,901
3
413 million
6 septillion
6.24
6.62607015×10^−34
72
90
π
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