Why Lightning Comes With Thunder
05 Feb 2008Regardless of whether lightning is positive or negative, thunder is produced the same way. Thunder is the acoustic shock wave resulting from the extreme heat generated by a lightning flash. Lightnin...
ERNEST SENAYA
ERNEST SENAYA:
speeches
Atomic theory proposed by John Dalton
05 Feb 2008Dalton's theory was based on the premise that the atoms of different elements could be distinguished by differences in their weights. He stated his theory in a lecture to the Royal Institution in 1803...
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speeches
What Is An Electron?
05 Feb 2008Electron is simply the smallest and ligthest subatomic particle inside every atoms. as you know, atom consists of protons (positively charged), neutrons (no charge) and electrons (negatively charged)....
general-articles
Snow Formation
04 Feb 2008Snow forms if the air in a cloud is below freezing. The water vapour then turns to ice instead of rain and the tiny ice crystals stick together until they form snowflakes. When they get heavy enough ...
general-articles
How The Tilt Of The Earth Produces The Seasons
04 Feb 2008This happens in two ways. The first is to do with how high in the sky the Sun appears. (NEVER LOOK AT THE SUN - your eyes may be permanently damaged.) Think about how the Sun appears in the sky dur...
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