Human scale

Human scale means "of a scale comparable to a human being".

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A number of characteristic physical quantities can be associated with the human body, the human mind, and the preservation of human life.

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• Distance: one to two metres (human arm's reach, stride, height)
• Number: about seven (plus or minus two) seems to be the limit of simultaneous human grasp of number (see George A. Miller's paper The Magical Number Seven, Plus or Minus Two)
• Attention span: seconds to hours
• Lifespan: approximately seventy years
• Mass:
• Force:
• Pressure: one standard atmosphere
• Temperature: around 300 K (room temperature)
 
Human scale: Science vs. human scale ►