IT may be of interest to give a preliminary account of what I believe to be a new method of producing acoustic spectra. The method, which is to employ the striations on “variable-density” sound-film ...

Lie groups provide a natural framework for describing continuous symmetries in both mathematics and physics. These groups, which are simultaneously smooth manifolds, allow for the integration of ...

Like all houses of worship, crafting a clear and consistent message for visitors and members is greatly aided by having the right production equipment on the stage and in the house. The Crossing, a ...