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.
While Japan may have the longest recorded history of tsunamis, the sheer destruction caused by the 2004 Indian Ocean earthquake and tsunami event mark it as the most devastating of its kind in modern times. Video: 2004 Boing Day Tsunami. The earthquake that generated the great Indian Ocean tsunami of 2004 was an undersea megathrust earthquake that occurred at 7:59 am local time on Sunday, 26 December 2004. It was caused by subduction with an epicentre off the west coast of the Indonesian island of Sumatra.