The movement of a solvent through a membrane separating two solutions of different concentrations. The solvent from the side of weaker concentration usually moves to the side of the stronger concentration, diluting it, until the concentrations of the solutions are equal on both sides of the membrane.
We manage Trafalgar Square, one of Londonâs most vibrant spaces in the middle of the city. Find out about the history of this heritage site, its statues and its fountains.
Logan Square is a neighborhood located in the north-central portion of the Logan Square community area in Chicago. The neighborhood boundaries of Logan Square were originally held to be Kimball Avenue on the west, California Avenue to the east, Diversey Avenue, on the north, and Fullerton Avenue to the south.