Hydraulics and Aeromechanics

A Demonstration Manual for Use in the Waldorf School Eighth Grade Physics Main Lesson

Mikko Bojarsky

Comb bound

$25.00

After working through acoustics, heat, optics, electricity and magnetism, hydraulics and aeromechanics becomes the centerpiece of Waldorf 8th grade science. Now we have a thorough, clear, and, yes, exciting demonstration manual that is equal to the task of keeping 8th grade students enthralled with these fascinating subjects. You’ll see from the Table of Contents, below, that once again Mikko Bojarsky has pulled out all the stops to gift anyone teaching 8th grade science with a resource they can really rely upon, whether in a classroom or homeschool setting.

Table of Contents:

  • Introduction
    • Equipment
    • Sources for Equipment
    • Pictures of Equipment
    • Safety
    • Rehearsing Demonstrations
  • Pressure
    • Pressure as the Ratio of Force to Surface Area
      • Part 1 – Square Rod and Block
      • Part 2 – Pressing with Fingers on Arm
    • Table of Representative Pressures
    • Determining the Pressure a Student Exerts on the Ground
    • Squirting Water from Syringes
    • Measuring the Pressure of a Car Tire
    • Measuring Blood Pressure
  • Water Pressure
    • Mariotte’s Bottle
    • Homemade Manometer
    • William Beebe and the Bathysphere
    • Water Seeks Its Own Level
      • Method 1 – Clamped Tubes
      • Method 2 – Single Piece of Tubing
    • Equilibrium Tubes
  • Archimedes’ Principle
      • Flotation
      • Part 1 – The Rising Bottle
      • Part 2 – Floating Objects
    • Archimedes’ Principle Demonstration
    • Simple Demonstration of Archimedes’ Principle
    • The Story of Archimedes and the Golden Crown
    • Floating Soda Cans
    • Floating and Sinking Aluminum Foil
    • Boat Contest
    • Floating Egg
    • Hydrometer
  • Pascal’s Principle
    • Biography of Pascal
    • Explanation of Pascal’s Principle
    • Pressure Syringe for Demonstrating Pascal’s Principle
      • Method 1 – Using a Commercial Device
      • Method 2 – Make Your Own Pressure Syringe
    • The Heimlich Maneuver
    • Examples of Pascal’s Principle in Action
    • Cartesian Diver
  • The Hydraulic Press
      • Hydraulic Balance
      • Part 1 – Equal Syringes, Equal Weights
      • Part 2 – Equal Syringes, Unequal Weights
    • Part 3 – Unequal Syringes, Equal Weights
    • Dueling Syringes
    • Hydraulic Press Model
    • Analysis of the Hydraulic Press
    • Hot Water Bottle Hydraulic Jack
    • Hydraulic Pistons
    • The Jaws of Life
    • Hydraulic Automobile Life
    • The Log Splitter
    • The Automobile Brake
  • Atmospheric Pressure
      • Air Has Weight
      • Method 1 – Using a Soccer or Other Inflatable Ball
      • Method 2 – Using Two Large Balloons
      • Method 3 – Using a Balloon and Precise Balance
    • Imploding Soda Can
    • Collapsing Square Can
    • Drinking Glass and Cardboard Square
    • Water in a Drinking Straw
    • Syringes and Vacuum Cleaners
    • Plumber’s Helpers
    • Bottles and Stopper
    • The Running Bottle
    • Egg and Florence Flask
    • Suction Cups
    • The Vacuum Pump
    • Magdeburg Hemispheres
    • How High a Column of Water Will the Atmosphere Support?
    • The Lift Pump
    • The Force Pump
    • Lift and Force Pump Models
    • The Centrifugal Pump
    • Hydraulic Ram
    • Hydraulic Ram Model
    • Siphons
  • Barometers
    • The Mercury Barometer
    • The Aneroid Barometer
    • Goethe Barometer
  • Bernoulli’s Principle
    • Clinking Light Bulbs
    • Rising Strip of Paper
    • Suspended Ping-Pong Ball
    • Atomizer
    • Bernoulli Bag
    • The Airplane Wing
    • Suggestions for the Study of Meteorology in Eighth Grade
  • Resources
    • Suggestions for Biographies
    • Books Useful for Teaching Hydraulics and Aeromechanics
    • Books Useful for Teaching Meteorology
  • Glossary
  • Message to Class Teachers

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