Articles

Printing press

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A printing press is a mechanical device for applying pressure to an inked surface resting upon a …

Prescriptive economics

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In the philosophy of economics, economics is often divided into positive (or descriptive) and nor…

White supremacy

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White supremacy is the belief that white people are superior to those of other races. The belief …

Cabin pressurization

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Cabin pressurization is a process in which conditioned air is pumped into the cabin of an aircraf…

Pressure-gradient force

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In fluid mechanics, the pressure-gradient force is the force that results when there is a differe…

Pre-Indo-European languages

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Thomas Prence

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Thomas Prence (c. 1601 – March 29, 1673) was a New England colonist who arrived in the colony of …

North Preston

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North Preston is a community located in Nova Scotia, Canada within the Halifax Regional Municipal…

Proportional representation

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Proportional representation (PR) refers to any electoral system under which subgroups of an elect…