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July 6, 2019

     Cliff divers usually attempt to land head first in water.  Most impacts are to top of their heads.  The force is tremendous and impact intensity increases with height and speed.  The diver head butts water and pushes it aside. He decelerates as he pushes water....

June 30, 2019

     Displacement rule:  "Vessels move through water by displacing water."  Vessels push water aside, taking the place of water it displaces.  Speed boats and surfboards initially follow this rule, but; have the ability to rise on the surface and move with hydrodynamic...

June 30, 2019

     Most surfboards have flat undersides from nose tip to fin area.  Tail designs vary with flat, Vee or concave shapes.  The forward section of the surfboard under the nose bend, is called the bow in boats.  In boats the bow parts water pushes out of its path.  In su...

June 12, 2019

When you dive into water, it cushions you and absorbs your energy.  Your body pushes water out of your path and energy is transferred to water in the form of waves.  You generate waves, slowing and descending deeper until your energy dissipates.  Descent into liquid is...

June 4, 2019

     The closest a man or woman has gotten to walking on water, is by water skiing barefoot.  The difference between a walker and skier, is speed.   If someone stepped off a speed boat moving very fast, he may manage a couple of steps.  Of course, this would not end we...

May 12, 2019

A flat surface, moving in water, creates resistance.   Water resists displacement and penetration by speeding flat objects.  Resistance blocks speeding objects on the surface and below.  On top of water, blocking is also known as lift.  Beneath the surface blocking is...

May 4, 2019

Mark Twain described a lightning fast surfer:  "at the right moment he would fling his board upon its foamy crest and himself upon the board, and here he would come whizzing by like a bombshell! It did not seem that a lightning express-train could shoot along at a more...

April 5, 2019

      Eddie would go and leads the way to Aloha.  His legacy drove exploration and research in Hawaiian culture, navigation and teachings.

    

     History links our past to the present.  It helps us to recognize events which advanced our lives,...

March 15, 2019

     

     All surfers have fallen hard into water.  When you impact water with speed, your body pauses on the water's surface for a second.  Water resists displacement and will not immediately move out of your way, due to the speed you carry.  Wate...

March 4, 2019

     When a surfboard takes off it moves through three phases.  Initially it pushes water in the displacement phase.  Vessels must push water out of their path to move.  Following the displacement phase it goes into transition.  This is just before taking the drop.  Th...

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