Archive for July 2009

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PERMENAKER 02/1989 : Pengawasan Instalasi Penyalur Petir
ZEUS Products : Technical  Specification
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DEFINISI PETIR (LIGHTNING)

DEFINISI Petir
Petir terjadi akibat perpindahan muatan negatif (elektron) menuju ke muatan positif (proton). Para ilmuwan menduga lompatan bunga api listriknya terjadi melalui beberapa tahapan:
- pemampatan muatan listrik pada awan bersangkutan
- penumpukan muatan di bagian paling atas awan adalah listrik muatan negatif; di bagian tengah adalah listrik bermuatan positif; sementara di bagian dasar adalah muatan negatif yang [...]



HISTORY AND MYSTERY OF LIGHTNING

Science investigates the known, the unknown and the unknowable. Today, lightning research is divided into various disciplines, some of which are:
• Atmospheric Physics and Electrostatics
• Electrical Engineering
• Climatology, including thunderstorm morphology and dynamics
• Meteorology and other sub-sectors
From the beginning of written history, lightning has fascinated mankind. It was the magic fire from the sky that man captured and used [...]