The porch in font of the cella of a Greek or Roman temple formed by the projection of the side walls and a range of columns between the projections.
Most commonly, the lightning current ceases in about a millisecond for a given stroke, but sometimes there is a continuing current on the order of 100 amps following one or more of the strokes. This is called hot lightning and it is the cause of lightning fires according to Uman.
The doubling of the factor (twice the factor) means: for the loudness level: +10 dB, for the sound pressure level: +6 dB SPL and for the electric voltage level: +6 dB, for the sound intensity level: +3 dB and for the power (energy) level: +3 dB ... and 10 dB SPL more means, the amplifier needs 10 times more power.PL is the abbreviation for  Sound Pressure Level . The term loudspeaker and amplification is not specifically raised with the previous survey. It's all about sound pressure the most important sound value. There is only one correct answer: Twice the sound pressure is an SPL of +6 dB.