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Magnitude and Scale

For archive (Updated on February 18, 2019)

Order of Magnitude

  • The mode of operation and the associated tools change with the Order of Magnitude.
  • There is a change in an order of magnitude when a number (or measure) is multiplied by ten.
  • An average person can walk about 4 mph (miles per hour).
  • A car made possible for an average person to drive 40+ mph.
  • An air plane made possible for an average person to travel 400+ mph.

Physics

  • Newtonian Mechanics holds when objects move at a relatively low speed (compared to that of light).
  • Modern Physics evolved from Classical Physics to handle the vast range of size and speed.
  • Relativity comes into play when objects move at a speed closer to that of light.
  • The size of an object can span several orders of magnitude.

Dr. Kyaw Tint wrote :

When they become small Quantum Mechanics can only describe their behaviors.

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