Search TheoryofKnowledge.info. Empiricism. Empiricism is the theory that experience is of primary importance in giving us knowledge of the world. Whatever we learn, according to empiricists, we learn through perception. Knowledge without experience, with the possible exception of trivial semantic and logical truths, is impossible.
Poplar, Wisconsin. Poplar is a village in Douglas County, Wisconsin, United States. The population was 603 at the 2010 census. U.S. Highway 2 serves as a main route in the community.
Trees of Wisconsin. The leaves of Populus balsamifera tend to be longer and more long-pointed than Populus tremuloides or P. deltoides and with much smaller teeth than Populus grandidentata. The petioles are approximately round in cross-section, unlike the conspicuously flattened petioles of our other naturally occurring species in this genus.