Transport of water in plants. The driving force behind water movement in plants is evaporation through the leaves, which acts like a magnet pulling water up the plantâs plumbing system. However, because water is evaporating from a living surface, it is called transpiration.
The biggest Harley Davidson sports unique and oversized parts. However, the classic model has a two-cylinder V-twin engine. The twin pistons are set on a pin at a 45 degree angle. This setup allows a powerfully built engine to be placed in a compact space.
The Twin Cam gets its name from the fact that it has two cams in the crankcase to activate the valves. At 88 cubic inches (1,450 cc) of displacement, it was the largest Harley motorcycle engine at the time, and it produced 80 horsepower. The engine was air-cooled, and used overhead valves activated by pushrods.