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.
Times Square is a major commercial neighborhood in Midtown Manhattan, New York City, at the junction of Broadway (now converted into a pedestrian plaza) one of the world's busiest pedestrian intersections. Times Square is the world's most visited tourist attraction.