Water is absorbed from the small intestine by osmosis following the active absorption of solutes, primarily sodium chloride. REGULATION OF GASTROINTESTINAL PROCESSES Most gastrointestinal reflexes are initiated by luminal stimuli: (a) distension, (b) osmolarity, (c) acidity, and (d) digestion products.
Popular Mechanics has an article on their site describing a prototype of a designed from scratch Mastercraft wakeboard-specific Boat called the X-Trek. The boat has a unique design and layout from normal wakeboard boats, and it will be interesting to see this boat in reality.
We're talking about the four primary types of surfboard designs. The first is the shortboard, also known as the thruster. This is the type of board that is pictured below. It's a board used to perform quick maneuvers on waves and is the most popular type of surfboard design. The size of these shortboards is generally from around 5'8'' to 6'10''.