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An ampere-hour or amp-hour (symbol: A⋅h or A h; often simplified as Ah) is a unit of electric charge, having dimensions of electric current multiplied by time, equal to the charge transferred by a steady current of one ampere flowing for one hour, or 3,600 coulombs. [1] [2] The commonly seen milliampere-hour (symbol: mA⋅h, mA h, often ...
Shapiro proposed investing $282.8 million (a 1.75% increase) in funding for public transit systems in the 2024 budget, which would generate $1.5 billion for transit funding until 2029. [140] The initial funding proposal was dropped from the budget in July, and SEPTA was given an $80.5 million budget extension to keep it solvent until the fall ...
[8] [9] The first women's hour record approved by the UCI was by Tamara Novikova in 1955. However Lemaire's 1952 non-UCI record was not bettered until Elsy Jacobs broke the 40 kmh barrier in 1958, the year Jacobs had won the inaugural women's road world championship. Jacobs' 1958 41.347 km UCI record would not be bettered until 1972.
The golden hour is also sometimes called the magic hour, especially by cinematographers and photographers. [1] [2] During these times, the brightness of the sky matches the brightness of streetlights, signs, car headlights and lit windows. The period of time shortly before the magic hour at sunrise, or after it at sunset, is called the "blue ...
1 nautical mile per hour (by definition), 1 852.000 metres per hour (exactly), [5] 0.51444 metres per second (approximately), 1.15078 miles per hour (approximately), 20.25372 inches per second (approximately) 1.68781 feet per second (approximately). The length of the internationally agreed nautical mile is 1 852 m.
In folklore, the witching hour or devil's hour is a time of night that is associated with supernatural events, whereby witches, demons and ghosts are thought to appear and be at their most powerful. Definitions vary, and include the hour immediately after midnight and the time between 3:00 am and 4:00 am.
A Faraday cage or Faraday shield is an enclosure used to block some electromagnetic fields. A Faraday shield may be formed by a continuous covering of conductive material, or in the case of a Faraday cage, by a mesh of such materials. Faraday cages are named after scientist Michael Faraday, who first constructed one in 1836. [1]