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.
The Indian Ocean tsunami ten years ago traveled at speeds reaching 500 miles per hour and barged up to a mile inland. It killed some 200,000 people, making it the deadliest wave known. 78 feet Garrett McNamara holds the record for the largest wave ever surfed, set in 2011 in Nazare, Portugal. Last year he claimed to have surfed a 100-footer also at Nazare, but the height hasnât been confirmed. 84 feet Until 1995, most scientists dismissed sudden, unexpected swells known as rogue waves as maritime myth. But on New Yearâs Day of that year, a monitoring platform off Norwayâs coast recorded a single 84-foot wave surrounded by 20-footers.