Hayward's primary field of research was fluid density and flowmeters, writing a textbook on the subject.
Alan Moore | Alan Lomax | Alan Alda | Alan Jackson | Alan Shearer | Alan Turing | Alan Greenspan | Alan Autry | Alan Ayckbourn | Hayward, California | Alan Jay Lerner | Alan Ridout | Alan Bennett | Alan Arkin | Alan Thicke | Alan K. Simpson | Alan Keyes | The Alan Titchmarsh Show | Alan Whiticker | Alan Jones | Alan | Alan Watts | Alan Rickman | Alan Freed | Alan Clark | Hayward Gallery | Hayward | Alan Price | Alan Hovhaness | Alan Bleasdale |