Primo Levi's Calculation: Human Mass on Earth's Surface

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Primo Levi's calculation suggests that if the total human mass of 250 million metric tons were distributed evenly across the Earth's surface, it would create a "human surface" thickness of 16,000ths of a millimeter. This calculation is based on the assumption that the density of the human body is approximately 1,000 kg/m³ and that the Earth's surface area is about 510 million km². The discussion reflects confusion among participants regarding the methodology behind this calculation and its origins in Levi's book "Il sistema periodico." Participants express difficulty in understanding the math involved and seek clarification on the topic. The conversation highlights the intriguing intersection of literature and scientific inquiry.
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Primo Levi: "Human Surface"

Homework Statement


http://answers.yahoo.com/question/index?qid=20101205082200AAZCums

What calculation did Primo Levi use to get the following conclusion:
According to Primo Levi's book, if the human mass of 250 million metric ton would be spread over the surface of earth, the thickness of the "human surface" is 16000st of a millimeter.
The density of a human body in this case would be 1000kg/m3. Surface Earth = 510 million km2

Homework Equations


None


The Attempt at a Solution


I wouldn't have the slightest idea to solve this.

Thanks in advance!
 
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Did you make this up? What book is this? :confused:
 


I'm totally confused myself too. None of my friends could solve it either. I'm sorry if it isn't fully understandable because I'm Dutch :).

Book: "Il sistema periodico ("The Periodic Table") p.168 (Primo Levi) I think...
 

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