|
Human scale is the set of physical qualities, and quantities of information, characterizing the human body, its motor, sensory, or mental capabilities, and human social institutions. == Science vs. human scale == Many of the objects of scientific interest in the universe are much larger than human scale (stars, galaxies) or much smaller than human scale (molecules, atoms, subatomic particles). Similarly, many time periods studied in science involve time scales much greater than human timescales (geological and cosmological time scales) or much shorter than human timescales (atomic and subatomic events). Mathematicians and scientists use very large and small numbers to describe physical quantities, and have created even larger and smaller numbers for theoretical purposes. Human scale measurements, however, are more in the order of: * Distance: one to two metres (3 to 6 ft – human arm's reach, stride, height) * Attention span: seconds to hours * Life span: 75 years (mean life expectancy at birth) * Mass: kilograms – most typically, human weights range from about for newborns to about for adults * Force: newtons (e.g. the weight of a human on Earth, on the order of several hundred newtons, or about 100-200 lbf) * Pressure: one standard atmosphere (average pressure on Earth at sea level, approximately ) * Temperature: around (room temperature); (normal range of temperatures in most inhabited regions of Earth) * Energy: typical adult human energy intake is around per day 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Human scale」の詳細全文を読む スポンサード リンク
|