Pascal (unit) dB SPL, or 20 µPa. The airtightness of buildings is measured at 50 Pa. The units of atmospheric pressure commonly used in meteorology were formerly the bar, which was close to the average air pressure on Earth, and the millibar. Since the introduction of SI units, meteorologists generally measure pressures in hectopascals (hPa) unit, equal to 100 pascals or 1 millibar. Exceptions include Canada, which use kilopascals (kPa). In many other fields of science, the SI is preferred, which means Pa with a prefix (in multiples of 1000) is preferred. Many countries also use the millibars. In practically all other
Smart Pascal support anonymous methods, but Smart Pascal has one advantage over these native compilers. Under native Pascal (compilers that produce executable machine code), you have class procedures and ordinary procedures. The only difference between these two is that if you want to reference the first (class method) you must postfix the declaration with "of object". This way of referencing a class method is typically used for event declarations. An event is declared thus in ordinary Object Pascal: If you omit the "of object" postfix, the reference can only be used on procedures and functions on unit level. The compiler does not