Surfing |  | | Uploaded by sweetie88 3 years ago.
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Surfing can be done on various pieces of equipment, including surfboards, bodyboards, wave skis, kneeboards and surf mat. Surfboards were originally made of solid wood and were generally quite large and heavy (often up to 12 feet long and 100 pounds/ 45 kg). Lighter balsa wood surfboards (first made in the late 1940s and early 1950s) were a significant improvement, not only in portability, but also in increasing maneuverability on the wave. Most modern surfboards are made of polyurethane foam (with one or more wooden strips or "stringers"), fiberglass cloth, and polyester resin. An emerging surf technology is an epoxy surfboard, which are stronger and lighter than traditional fiberglass. | |
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