A Radial engine was used on old bi-planes - many (round)cylinders around one shaft - Rotary engines have a triangle type piston - not round. Instead of going up & down ,they move in a somewhat triangle circle.
The largest tsunami on record strucky Lituya Bay in a  remote portion of Alaska in 1958. It was overâ¦ 1,700 feet tall. The  meteor impact associated with the extinction of the dinosaurs is  believed to have generated a tsunami 3,000 feet to 1 mile tall.
A 62-foot wave in the North Atlantic has been certified as the largest ever recorded â a âremarkable record,â according to the UNâs weather agency. The 62.3-foot monster was measured by an automated buoy between the United Kingdom and Ireland in February 2013, the World Meteorological Organization announced Tuesday.