# Reply to post: Re: Get a big broom, judge!

### Court to Wikimedia: Your NSA spying evidence is inadmissable, so you can't prove NSA spying

#### Re: Get a big broom, judge!

I did the same maths as you when I read that, and translated it into real-world terms: it comes out to about 15 20' shipping containers' worth of sand, so a fair sized convoy of semi-trailers and a bloody big hole in the beach that a great many beachgoers, not to mention the shire council responsible for its upkeep, would definitely notice!

For the maths geeks:

20' shipping container = 12.051 m x 2.34 m x 2.38 m = 67.11 m3

Assuming 1 mm3 per sand grain, 1000 mm x 1000 mm x 1000 mm = 1 m3 = 1 billion grains of sand, so 1 trillion grains of sand = 1000 m3.

1000 m3 / 67.11 m3 = 14.9 shipping containers.

Assuming a density of about 1600 kgm-3 for dry packed sand, that's about 1600 metric tonnes of sand (for our American friends, 1764 short tons.)

Sources:

Volume of a shipping container

Density of sand

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