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  2. Gas mark - Wikipedia

    en.wikipedia.org/wiki/Gas_mark

    For the reverse conversion: = These do not work for less than 1, since the steps are given as halves (i.e., 1 ⁄ 4, 1 ⁄ 2). For temperatures below 135 °C (gas mark 1), to convert gas mark to degrees Celsius apply the following conversion:

  3. Metrication in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Metrication_in_the_United...

    When James VI of Scotland inherited the English throne in 1603, England and Scotland had different systems of measure. Superficially the English and the Scots units of measure were similar – many had the same names – but there were differences in their sizes: in particular the Scots pint and gallon were more than twice the size of their English counterparts. [3]

  4. Altimeter setting - Wikipedia

    en.wikipedia.org/wiki/Altimeter_setting

    SPS/STD - 'Standard Pressure Setting' or just 'Standard' refers to the altimeter being set to the standard pressure of 1013.25 hPa. It is the setting that causes an altimeter to read the aircraft's flight level (FL). Flight levels are given in hundreds of feet (for example: FL100 = 10 000 ft). Atmospheric pressure changes over time and position.

  5. Pressure altitude - Wikipedia

    en.wikipedia.org/wiki/Pressure_altitude

    This setting is equivalent to the atmospheric pressure at mean sea level (MSL) in the ISA. Pressure altitude is primarily used in aircraft-performance calculations and in high-altitude flight (i.e., above the transition altitude ).

  6. Scott-T transformer - Wikipedia

    en.wikipedia.org/wiki/Scott-T_transformer

    Standard Scott Connection 3 φ to 2 φ. Assuming the desired voltage is the same on the two and three phase sides, the Scott-T transformer connection (shown right) consists of a centre-tapped 1:1 ratio main transformer, T1, and a √ 3 /2(≈86.6%) ratio teaser transformer, T2.

  7. Standard-setting study - Wikipedia

    en.wikipedia.org/wiki/Standard-setting_study

    Standard-setting study is an official research study conducted by an organization that sponsors tests to determine a cutscore for the test. To be legally defensible in the US, in particular for high-stakes assessments, and meet the Standards for Educational and Psychological Testing, a cutscore cannot be arbitrarily determined; it must be empirically justified.

  8. Film speed - Wikipedia

    en.wikipedia.org/wiki/Film_speed

    Exposure index, or EI, refers to speed rating assigned to a particular film and shooting situation in variance to the film's actual speed. It is used to compensate for equipment calibration inaccuracies or process variables, or to achieve certain effects. The exposure index may simply be called the speed setting, as compared to the speed rating.

  9. Pierre Lescot - Wikipedia

    en.wikipedia.org/wiki/Pierre_Lescot

    The Lescot Wing of the Palais du Louvre. Pierre Lescot (c. 1515 – 10 September 1578) was a French architect of the French Renaissance period. He is known for designing the Fontaine des Innocents and the Lescot wing of the Louvre in Paris.