Great little video explaining all the hidden engineering and technology that we don't see. As with any good presentation, nie we have questions. For example, ho

Great little video explaining all the hidden engineering and technology that we don't see. As with any good presentation, nie we have questions. For example, how do you prevent that slump from happening, that he showed at the end? How did engineers fix those broken highways? Then part two? I assume, would be to show how soil, ground analysis works, with drilling, sampling etc. to define stability, and what engineering used for that.