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Author Topic: How many marbles would fit inside the Earth if it were hollow?  (Read 4291 times)

Offline Emilio Romero

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Ok, how many marbles would fit inside the Earth if it were hollow?

More than six I guess...  ;D


 

Offline JnA

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peewees or boulders?
 

Offline Emilio Romero

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little standard ones....
 

Offline Chemistry4me

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What's the radius of the marbles?
 

Offline Don_1

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No idea, I lost my marbles years ago!
 

Offline Emilio Romero

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r = 0.5 cm
(and they are blue) [8D]
 

Offline Chemistry4me

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Earth's volume: 1,083,207,317,374 km2

http://en.wikipedia.org/wiki/Volume_of_the_Earth

 

Offline Chemistry4me

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Using that I get about 2 x 1030 :)
 

Offline Bored chemist

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The question isn't properly specified.
If I made a very small hollow in the centre of the earth it might only hold 1 marble.
It depends how thick the walls are. If you calculate the area that you would get if you squashed the entire earth into a single monolayer of atoms then worked uot the size of sphere that had that surface area you would need a lot more marbles.
Then there's the packing density problem and a few other glitches like that many marbles might colapse into a black hole.
 

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