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

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

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

Cabin pressurization
Cabin pressurization is a process in which conditioned air is pumped into the cabin of an aircraf…
Pressure-gradient force
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
Thomas Prence (c. 1601 – March 29, 1673) was a New England colonist who arrived in the colony of …

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

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