プランク時間
1. Planck timeIn physics, the Planck time, denoted by tP, is the unit of time in the system of natural units known as Planck units. It is the time required for light to travel, in a vacuum, a distance of 1 Planck length. The unit is named after Max Planck, who was the first to propose it. The Planck time is defined as: where: is the reduced Planck constant (sometimes is used instead of in the definition) G = gravitational constant c = speed of light in a vacuum is the SI unit of time, the second.
Read “Planck time” on English Wikipedia
Read “プランク時間” on Japanese Wikipedia
Read “Planck time” on DBpedia
Read “Planck time” on English Wikipedia
Read “プランク時間” on Japanese Wikipedia
Read “Planck time” on DBpedia
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