January 28, 2011
limestone is probably the most versatile stones available to us. Limestone is a sedimentary rock, that has its main component as calcium carbonate (CaCaO3). Limestone in most cases is white colored, but can can be found in different colours and patterns resulting from impurities. Impurities of iron oxide give the rock brown, yellow or beautiful [...]
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January 22, 2011
An inverter is a box filled with electronic goodies which will convert your battery voltage into mains power. Years ago if you needed to get “mains” power out of your battery you'd use a device referred to as a rotary inverter. This was merely a battery powered motor spinning a generator with an output equivalent to mains power. [...]
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