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The an international population is expected to reach 7 billion Monday – just 12 year after hitting 6 billion – and also the milestone has plenty of pondering the facility challenges associated with billions more people on earth in the coming years.

some are likewise pondering something else: simply how huge is 7 billion really?

that a number that’s straightforward to underestimate.

on the surface, it no look much various than 6 billion, either in written type or numeric form. There room nine zeros in 6,000,000,000, as with there are nine zeros in 7,000,000,000. Yet if you counted every number in between them, it would take an ext than 30 years. Yes, three decades.


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and also when was the last time you provided 7 billion in daily life? have you ever consumed 7 exchange rate of something? have you ever before owned 7 billion of anything? early this year, over there were just 140 civilization in the human being who were worth $7 billion, according to Forbes magazine.

“The number is just exterior of ours usual everyday scale the thinking,” said Klaus Volpert, an associate professor of mathematics at Villanova University. “We count to 10 on ours fingers and that’s our scale, friend know? also counting to a million is already kind of external of the daily experience. And then once you go previous a million, it becomes a blur.”

here are some various ways that might help you envision the enormousness that 7 billion:

– 7 billion secs ago, the year to be 1789. The was the year George Washington was inaugurated as the very first U.S. President and Congress met because that the very first time.

– If you took 7 billion steps along the earth’s equator – at 2 feet per action – you could walk approximately the people at least 106 times.

– mean an average thimble holds 2 milliliters that water. Seven billion the those thimbles would fill in ~ least 5 Olympic-sized swim pools.

– stop say the average human is about 5 feet tall, accountancy for children. If you ridge those 7 billion human being end to end, they would certainly reach around 1/14th of the way to the sunlight – or 27 time the street to the moon, Volpert said.

– 7 billion ants, at an typical size that 3 milligrams each, would weigh at least 23 loads (46,297 pounds).

“Our mind simply staggers,” Volpert said, as soon as thinking about how big 7 billion yes, really is. He said there’s a similar feeling when trying to grasp ultra-tiny measurements or miscellaneous as vast as outer space.

“Every as soon as in a while once we look at up at the stars, we acquire a glimpse of the scale that’s past the human being scale, and it’s fascinating and great,” he said.

population experts room hoping that much more people begin to master the 7 billion principle soon, since the number has actually skyrocketed in current years and also the case is becoming more urgent. (See populations country-by-country)

The people didn’t reach 1 billion inhabitants until 1800, follow to the population Reference Bureau, and it got to 2 exchange rate in 1930. Yet with breakthroughs in modern-day medicine, the took only 30 more years to reach 3 billion, 14 year to with 4 billion, 13 years to with 5 billion and also 12 year to with both 6 billion and 7 billion.

The U.N. Has estimated a population of 9.3 billion by 2050, and there is expected to be an ext than 10 billion people on earth by 2100.

“We’re acquiring into an ext and more trouble the enlarge the number gets,” said John Bongaarts, vice president of the population Council, an worldwide nonprofit group. “Every billion world we include makes life more difficult for anyone that’s currently here.”