Daniel Bernoulli, 1738

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(Daniel Bernoulli, 1738)
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Bernoullis Principle

• As the speed of a moving fluid increases, the
  pressure within the fluid decreases

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Archimedes
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Archimedes Principle

• An object in a fluid experiences an upward force
  (buoyant force) equal to the weight of the fluid
  displaced by the object.

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Archimedes Example

• So if a boat weighs 1,000 pounds (or kilograms),
  it will sink into the water until it has
  displaced 1,000 pounds (or kilograms) of water.
• howstuffworks.com

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Blaise Pascal
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Pascals Principle

• Pressure transmitted through a liquid is
  distributed equally in all directions.
• http//webphysics.davidson.edu/physlet_resources/b
  u_semester1/c23_pressure_pascal.html