Studied by 1 personNumber of People on Earth?
7 billion
How many live in cities?
3.5 billion
Global Median Household Income Per Year
$10,000
Global Life Expectancy
70 years
Average Male Height
175cm
Average Female Height
165cm
The rate people roughly walk at?
4 km/hour (1 m/s)
Top speed of a commercially sold car?
120 km/h (30 m/s)
Speed of a Jet Aircraft
800 km/h (200 m/s)
Speed of Sound Through Air
1200 km/h (300 m/s)
Radius of Earth
6400 km
Top of Mount Everest
8 km above sea level
How much of Earth's surface is covered by water?
70%
Distance to Moon
380,000 km
Distance to Sun
150,000,000 km
Note
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