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www.reference.com/article/use-trickle-charger-4e284f9a10fbdc58

A trickle charger is used to constantly charge a car battery at the same rate at which the battery self-dissipates its charge. A trickle charger is used by connecting the positive cable of the charger to the positive end of the battery and connecting the negative cable ...

www.reference.com/article/word-means-filter-trickle-through-porous-substance-c98c9be82d773dd

Percolate means to filter or trickle through a porous substance. Two examples of percolation include ground coffee in a filter or rainwater through soil on its way to an aquifer. The word comes from Latin "perc?l?tus," meaning "to filter."

www.reference.com/article/home-economics-acf6212973713ad5

Home economics is the field of study dealing with the management of the home and its place in the broader community. In the past, home economics, known to many simply as home ec, was strictly concerned with traditional homemaking and taught only to girls. Today, the fi...

www.reference.com/article/three-economic-systems-68353c9bba89a5

The three economic systems are the traditional, command and market economic systems. Different countries use different economic systems.

www.reference.com/article/origin-economics-6d41c978dae0e7f4

Investopedia explains that the origin of economic thought lies with a man named Adam Smith who was heavily influenced by French writers and philosophers. Smith developed the discipline of economics as an alternative to French mercantilism, which was an easily exploited ...

www.reference.com/article/demand-economics-bd66a9e2c7aa46e6

In economics, demand is the quantity of goods or services that consumers are able and willing to buy at a given price at a particular time. The law of demand provides that, if all other market factors remain constant, the demand for goods and services increases as their...

www.reference.com/article/flow-variables-economics-d5e271e8e2edd763

A flow variable in economics is a quantity that is measured over a time period. This is in contrast to stock variables, which are measured at a specific time. Flow variables can be measured over any time period but the most common include day, week, month, quarter and y...