Seawalls are hard engineered structures with a primary function to prevent further erosion of the shoreline. They are built parallel to the shore and aim to hold or prevent sliding of the soil, while providing protection from wave action (UNFCCC, 1999).
Making the world better, one answer at a time. Vygotsky is best known for is theory of language acquisition, particularly the idea of scaffolding and the zone of proximal development.
Other key people. 1  Valentin Glushko was Chief Engine Designer for the Soviet Union. 2  Vasily Mishin was Chief Designer working under Sergey Korolyov and one of the first Soviets to inspect the captured German V-2 design. 3  Robert Gilruth was the NASA head of the Space Task Force and director of 25 manned space flights.