
An animated series by Damasco Penna about soil mechanics, from the grain to the test.
A single track: it starts at the origin of soils, moves through water and stresses, and arrives at the tests that measure it all. Content follows Brazilian standards and Damasco Penna's 45 years of field practice.

Millions of years of sun, rain and chemistry turn mountains into soil.

A whole world between gravel and clay, far too small for the eye to reach.
Every soil is grain, water and air. The grain carries the building. The void gives way.
Sieve by sieve, the soil tells its story. The grading curve is its portrait.
Where soil comes from and why it is the way it is.
Effective stress, the concept that underpins all of soil mechanics.
When soil fails and how to measure it before it happens.
The field and laboratory tests that reveal every parameter.
Every concept in SUBSOLO comes from practice: drilling, in situ testing and soil laboratory work since 1980.
A new episode every two weeks. Subscribe to Damasco Penna's YouTube channel to watch each one as soon as it airs.