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humus group - Territorio e Sistemi agro-forestali - Università degli ...

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STRUCTURE = a SCALE problem<br />

Our approach concerns the space having dimensions from 1/10 of mm to 1-2 cm<br />

R. Secco<br />

h = 2m<br />

1) sample in the ball (Ø 3 cm)<br />

2) Let fall the ball 3 times<br />

Force against the sample = 1N (= a weight of<br />

100g on the sample)<br />

Observation of the sample:<br />

magnitude from 10X to 50X

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