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.
Foley Square. For the television series, see Foley Square (TV series). Foley Square is a street intersection and green space in the Civic Center neighborhood of Lower Manhattan, New York City and â by extension â the surrounding area, which is dominated by civic buildings.