Ochroma 5th and 6th generations of the Chevrolet Corvette had floor pans composed of balsa sandwiched between sheets of carbon fiber reinforced plastic. Norwegian scientist and adventurer Thor Heyerdahl, convinced that early contact between the peoples of South America and Polynesia was possible, built the raft "Kon Tiki" from balsa logs, and upon it he and his crew sailed the Pacific Ocean from Peru to the Polynesian Tuamotu Archipelago in 1947. However, the Kon Tiki logs were not seasoned and owed much of their (rather slight) buoyancy to the fact that their sap was of lower density than seawater. This serendipitously
Thor Heyerdahl Upper Secondary School national upper secondary courses of study or programmes, only agriculture is instead taught at another upper secondary school, "Melsom videregående skole" in Stokke. The school building covers an area square and has of instructional space, including 320 classrooms, of workshops, a six-hall arena space seating 4,000, three auditoria seating 45–180 people, and a professional kitchen. The library is named Fatu Hiva after the Polynesian island on which Thor Heyerdahl spent his honeymoon in the 1930s. 11% of Thor Heyerdahl Upper Secondary School students speak a language other than Norwegian at home. The school is a focus school for the "Nasjonalt