World Population Day and the Math Behind It

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Have you ever wondered how many people live on the planet right this second? 

How many people are born every hour? 

How many people have lived on Earth?

It can be mind boggling to comprehend the rate of growth!  Celebrate World Population Day on July 11th.

According to Wikipedia "World Population Day is an annual event, observed on July 11 every year, which seeks to raise awareness of global population issues. The event was established by the Governing Council of the United Nations Development Program in 1989. It was inspired by the public interest in Five Billion Day on July 11, 1987 approximately the date on which the world's population reached five billion people...The world population (as of January 1, 2014; 9:24 UTC) is estimated to be 7,137,661,030."  Wow, that is a lot of fellow citizens.

The census bureau has an awesome clock, you can in real time as the population of the US and the World changes.

According to the clock there is:

-One birth every 8 seconds

-One death every 13 seconds

-One international migrant every 38 seconds

-That's one person every 13 seconds

You can also choose your birthday or other special dates to see what the population was on that day.

Check out this website for some fantastic math equations on calculating the world's population.

They look something like this L(N/No)= rt and the list goes on with even more math and interesting facts!