Abstract: A visual display is provided through the combined effect of many devices that individually illuminate in response to wind flow. The devices are distributed at different locations within a three-dimensional space, so as to provide an overall illumination effect throughout the space that visually indicates wind (air) or other fluid flowing through the space. Each device can include a housing, at least one light source, a sensor system, and a device controller. The sensor system can include any of various types of sensor subsystems, each having one or more sensors, but includes at least a flow sensor subsystem. The device controller is configured to activate the light source in response to the sensor system detecting a change in an environmentally-related input, such as air flow, sensed by the sensor system.

Abstract: A visual display is provided through the combined effect of many devices that individually illuminate in response to wind flow. The devices are distributed at different locations within a three-dimensional space, so as to provide an overall illumination effect throughout the space that visually indicates wind (air) or other fluid flowing through the space. Each device can include a housing, at least one light source, a sensor system, and a device controller. The sensor system can include any of various types of sensor subsystems, each having one or more sensors, but includes at least a flow sensor subsystem. The device controller is configured to activate the light source in response to the sensor system detecting a change in an environmentally-related input, such as air flow, sensed by the sensor system.