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Question indigenous Naresh, a student:

in a book, i gained to check out this :

Is it possible to pack the entire populace of earth and also everything that was produced by mankind in a cube who edges are 2 miles long ?

Is it possible? Thanks.

You are watching: How many cubic feet is the earth

That"s a fascinating question Naresh.

Let"s start by estimating the volume of human bodies alive today.

People weights vary widely, particularly if you encompass children and adults together. Let"s speak the typical weight the a person alive this particular day is 110 lbs.

How much is that in volume? The person body floats many of the time, however is quite close to the thickness of water, so for an estimate, let"s think that the human body as having actually a thickness of water (we are largely made of water anyway). That"s 62.4 lbs per cubic foot. Due to the fact that 110/62.4 = 1.76 or so, that method the average person"s human body occupies 1.76 cubic feet of volume.

What is the entire population of earth? follow to Wikipedia, it is at this time a small less than 7 billion. So every the living human bodies on earth occupy 7 billion x 1.76 = 12.3 billion cubic feet that space.

How does that compare to a cube 2 mile on one edge? together a cube is 2 x 2 x 2 cubic miles = 8 cubic miles. The human beings are 12.3 billion cubic feet. To transform cubic feet right into cubic miles, we divide 12.3 billion by 5280 3 times (one time each for length, width and also height). That renders 0.08 cubic miles.

All the human beings alive ~ above earth and also we"ve just filled 1 every cent the the room in the box! probably our estimates of people"s weights is off, however not through a factor of 100, certainly! In fact, a current estimate of the number of people the have ever lived on planet (all the people from the last several tens of hundreds of years) is about 106 billion. The would lug us approximately 1.27 cubic miles, or 16% that the easily accessible space.

Now though things start to end up being uncertain, since what walk the expression "everything the was produced by humankind" include? It would certainly probably incorporate things prefer buildings, ocean liners, clothing, oil rigs, pyramids, and also such, although friend could likewise say that us are just assembling things in the environment into various other forms. But what else the occupies volume? would certainly this encompass things like person waste, solid and also liquid? What around perspiration? i presume breath would certainly not be included, but do our bodies "create" rubbish or space we simply extracting nutrient from food and leaving the remainder, no really producing it?

I don"t know the answers to these questions, so I"ll leave it to you to puzzle end them.

Cheers, Stephen La Rocque.

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