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Ochroma obtusum Rowlee. Ochroma pyramidale, commonly known as the balsa tree, is a large, fast-growing tree native to the Americas. It is the sole member of the genus Ochroma. [1] The tree is famous for its wide usage in woodworking, due to its softness and its high strength compared to its low density. The name balsa is the Spanish word for ...
Between 1966 and 1973, Spanish explorer Vital Alsar led three expeditions to cross the Pacific Ocean by raft – La Pacífica in 1966, La Balsa in 1970 and Las Balsas in 1973. Travelling from Ecuador, South America, to Australia, the first expedition failed, but the second and third succeeded, both setting the record for the longest known raft ...
Pre-Columbian rafts were steered by a combination of adjusting the sails and the use of centerboards, called "guaras." These were boards typically about 60 centimetres (2.0 ft) wide inserted vertically into the sea between the balsa logs. On larger rafts there were three sets of the guaras at the front, back, and the middle of the raft.
The Muisca raft ( Balsa Muisca in Spanish ), sometimes referred to as the Golden Raft of El Dorado, is a pre-Columbian votive piece created by the Muisca, an indigenous people of Colombia in the Eastern Ranges of the Colombian Andes. The piece probably refers to the gold offering ceremony described in the legend of El Dorado, which occasionally ...
Model glider aircraft are flying or non-flying models of existing or imaginary gliders, often scaled-down versions of full size planes, using lightweight materials such as polystyrene, balsa wood, foam and fibreglass. Designs range from simple glider aircraft, to accurate scale models, some of which can be very large.
Raft. A raft is any flat structure for support or transportation over water. [1] It is usually of basic design, characterized by the absence of a hull. Rafts are usually kept afloat by using any combination of buoyant materials such as wood, sealed barrels, or inflated air chambers (such as pontoons ), and are typically not propelled by an engine.
The museum was originally built to house the Kon-Tiki, a raft of balsa wood of pre-Columbian model that Norwegian adventurer Thor Heyerdahl used to sail from Peru to Polynesia in 1947. Another boat in the museum is the Ra II , a vessel built of reeds according to Heyerdahl's perception of an ancient Egyptian seagoing boat.
Seniorita RC model aircraft of balsa construction, with transparent heat-shrink covering revealing the balsa inner structure A large model J-3 Cub, scale RC models are often made of balsa and covered with lightweight heat-shrinkable polyester fabric covering for a more realistic appearance. Wood kits come in many sizes and skill levels.
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