Abstract: An apparatus for illuminating an object in a defined area. The apparatus comprises a light source for projecting a beam of light in a defined area. A mounting rotatably supports the light source to intermittently illuminate the object in the defined area with the beam of light at substantially equal intervals. A control establishes the frequency at which the beam of light intermittently illuminates the object in the defined area at a frequency of at least 12 cycles per second. A balance is adjustably connected to the mounting to provide dynamic balance of the mounting.

Abstract: An apparatus for deterring an undesired behavior of at least one person. The apparatus comprises a projectile having an exterior that will not cause serious injury to a person. An actuatable launcher supports the projectile and propels the projectile in response to being actuated. A spool is mounted on the projectile or launcher. Line is wound on the spool. The line has an end portion operably connected with the launcher and another end portion operably connected with the projectile. The spool is positioned so the line is pulled from the spool after the projectile is propelled.A method of crowd management comprises the steps of providing a plurality of projectiles. Each of the projectiles has an exterior that will not cause serious injury to a member of the crowd. A plurality of actuatable launchers is provided. Each of the launchers is capable of supporting at least one projectile and upon actuation propels the projectile along a desired path. A spool is attached with each of the projectiles or a launcher.

Abstract: The apparatus to absorb solar radiant energy including means to circulate an energy absorbing liquid through a shallow passageway between two substantially flat members while maintaining the static pressure of the liquid not greater than atmospheric pressure.