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.
Union Square is a neighborhood in the southeastern part of Somerville, Massachusetts. It is centered around Union Square proper, which is located at the intersection of Washington Street, Webster Avenue, and Somerville Avenue. The name Union Square comes from the square having been used as a recruitment and mustering site for the Union Army in the American Civil War.