Temperature-measuring instrument consisting of two wires of different metals joined at each end. One junction is placed where the temperature is to be measured, and the other is kept at a constant lower (reference) temperature. A measuring instrument is connected in the electrical circuit. The temperature difference causes the development of an electromotive force that is approximately proportional to the difference between the temperatures of the two junctions. Temperature can be read from standard tables, or the instrument can be calibrated to display temperature directly.
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Electric contact in transistors and related devices between two different types of material called math.p-type and math.n-type semiconductors. These materials are pure semiconductor materials, such as silicon, to which impurities have been added. Materials of math.p-type contain “holes” (vacancies formerly occupied by electrons) that behave like positively charged particles, whereas math.n-type materials contain free electrons. Electric current flows more easily across a math.p-math.n junction in one direction than in the other. If the positive pole of a battery is connected to the math.p-side of the junction, and the negative pole to the math.n-side, charge flows across the junction. If the battery is connected in the opposite direction, very little charge can flow. The math.p-math.n junction forms the basis for computer chips, solar cells, and other electronic devices.
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The Island Riffle variety of watermelon is a popular crop in the area.
There were 66 households out of which 25.8% had children under the age of 18 living with them, 45.5% were married couples living together, 18.2% had a female householder with no husband present, and 34.8% were non-families. 33.3% of all households were made up of individuals and 19.7% had someone living alone who was 65 years of age or older. The average household size was 2.11 and the average family size was 2.65.
In the village the population was spread out with 18.7% under the age of 18, 9.4% from 18 to 24, 24.5% from 25 to 44, 29.5% from 45 to 64, and 18.0% who were 65 years of age or older. The median age was 44 years. For every 100 females there were 80.5 males. For every 100 females age 18 and over, there were 73.8 males.
The median income for a household in the village was $33,750, and the median income for a family was $34,219. Males had a median income of $34,167 versus $27,083 for females. The per capita income for the village was $16,256. There were 3.8% of families and 11.1% of the population living below the poverty line, including no under eighteens and 41.4% of those over 64.