Systems and methods for stabilizing laser frequency based on an isoclinic point of an atomic or molecular medium are provided herein. When an armature has been attracted responsive to a brake release command, the temperature of the magnetic brake is measured as a first temperature, and before the armature returns responsive to a brake actuation command, the temperature of the magnetic brake is measured as a second temperature. The remote player may play in the online game at the positionseat occupied by areal-world player. The extension-frame-signalling data may signal when the one or more extension parts occur by signalling after which of one or more data frames in a super frame the extension parts occur. The processor is also operable to coordinate the transfer of data from each of the directional communication links to the mobile device.