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A common unit in both measures throughout historic Greece was the cotyle or cotyla whose absolute value varied from one place to another between 210 ml and 330 ml. [1] The basic unit for both solid and liquid measures was the κύαθος (kyathos, plural: kyathoi).
The stadion (plural stadia, Ancient Greek: στάδιον; [1] latinized as stadium), also anglicized as stade, was an ancient Greek unit of length, consisting of 600 Ancient Greek feet . Its exact length is unknown today; historians estimate it at between 150 m and 210 m.
The pous (pl. podes; Ancient Greek: πούς, poús) or Greek foot (pl. feet) was a Greek unit of length of approximately 300mm or 12 inches. It had various subdivisions whose lengths varied by place and over time. 100 podes made up one plethron, 600 podes made up a stade (the Greek furlong) and 5000 made up a milion (the Greek mile).
The amount of time light takes to travel one Planck length. quectosecond: 10 −30 s: One nonillionth of a second. rontosecond: 10 −27 s: One octillionth of a second. yoctosecond: 10 −24 s: One septillionth of a second. jiffy (physics) 3 × 10 −24 s: The amount of time light takes to travel one fermi (about the size of a nucleon) in a ...
In ancient Greece, the mina was known as the μνᾶ (mnâ). It originally equalled 70 drachmae but later, at the time of the statesman Solon (c. 594 BC), was increased to 100 drachmae. [12] The Greek word mna (μνᾶ) was borrowed from Semitic. [13] [14] Different city states used minae of different weights.
The apparent size of the Sun and the Moon in the sky. The size of the Earth's shadow in relation to the Moon during a lunar eclipse; The angle between the Sun and Moon during a half moon is 90°. The rest of the article details a reconstruction of Aristarchus' method and results. [4] The reconstruction uses the following variables:
In travel news this week: nude weddings in Italy, why North Americans are so unhappy with air travel and the incredible subterranean wonders hidden beneath Turkey.
An Egyptian method of determining the time during the night, used from at least 600 BC, was a type of plumb-line called a merkhet. A north–south meridian was created using two merkhets aligned with Polaris, the north pole star. The time was determined by observing particular stars as they crossed the meridian. [24]