The Moving Giant: Why Niagara Falls is Slowly Deleting Itself. скачать в хорошем качестве

The Moving Giant: Why Niagara Falls is Slowly Deleting Itself.

Niagara Falls appears frozen in time, but it is actually a landmark in motion. For 12,000 years, this natural wonder has been retreating upstream, carving a 12-kilometer gorge in its wake. In this documentary, we investigate the "Great Retreat"—a geological cycle of undercutting and collapse where soft shale erodes beneath hard caprock, causing massive sections of the falls to literally jump backward. Discover how massive hydroelectric projects and engineering stabilization efforts have artificially slowed this process from 1.5 meters a year to just 0.3 meters. We explore the hidden natural forces, from freeze-thaw weathering to chemical dissolution, that are slowly dismantling the cliffside. As the falls approach weaker rock formations near Lake Erie, we look at the inevitable future where this iconic drop may vanish into a series of rapids. Witness the 12,000-year story of a landmark that is slowly deleting its own history. #Nature #Science #History