rhythm of marks by night

Lights that shine at night; their color and the frequency of their flashing signal various meanings, including the source of the light.
rhythm of marks by night 						Duration between two periods at which time the light remains dark.				  							Duration between two periods at which time the light remains dark.				  							Duration between two intervals at which time the light signals.				  							Duration between two intervals at which time the light signals.				  							Duration between two intervals at which time the light signals.				  							The light’s color and brightness vary during the period as a function of the type of light.				  							No light.

interval

Duration between two periods at which time the light remains dark.

interval

Duration between two periods at which time the light remains dark.

period

Duration between two intervals at which time the light signals.

period

Duration between two intervals at which time the light signals.

period

Duration between two intervals at which time the light signals.

light

The light’s color and brightness vary during the period as a function of the type of light.

darkness

No light.