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Understanding Coal and Petroleum
Man’s quest for sources of energy is inexhaustible. Early man depended mainly on muscular energy and later began to use wind and flowing water as sources of energy. He learned the art of making and controlling fire. Fire became his source of light at night. He used fire for warmth and realized that cooked food [...]
Home Retrofitting
Home Retrofitting
If your home is now over 5 to 10 years old now may be your time to go for a energy system retrofit. Home retrofitting is today a hot topic because of the ever escalating energy bills and universal power shortage.
Home retrofitting for energy conservation is of prime importance because it amounts to [...]
Dell XD802 AC Adapter Safety Considerations
UPS’s using a single 12 V laptop battery can cause injury. The batteries used can supply large currents if short circuited. It is easy to lose a finger if a ring shorts the battery supply. The risk is that the ring becomes hot, causing cauterisation of the blood vessels. With no blood supply, the only [...]