1 Purpose. Structural motor parts such as crankshafts and connecting rods are frequently described by their method of fabrication: billet, cast or forged. Much confusion, some of it intentional, surrounds the differences between these methods, and the their advantages and weaknesses.
News LinksMore>>. It is an eruption that many who live on the Island of Hawaii remember well. On March 25, 1984, lava erupted from a fissure at Mauna Loa's summit, and, within hours, another fissure opened farther downMore >>. It is an eruption that many who live on the Island of Hawaii remember well.More >>.
Mauna Loa volcano is the largest volcano on Earth. It is over 30,000 feet tall from the seafloor where it was born to the summit, which is 13,684 feet above sea level. This is a caldera.A caldera is a large bowl-shaped crater that is formed by the collapse of a volcanic cone after an eruption.The animation shows the steps in the formation of a caldera. The volcano usually shows signs of erupting by producing earthquakes as the magma rises in the volcano.his forms magma which rises inch by inch until it reaches the surface forming a volcano. In 1971 W. Jason Morgan added to the hot spot theory. When the rising solid rock (mantle plume) reaches the plates it splits and spreads horizontally. This split or flow causes the plates to drift.