black linear spiral

black linear spiral isolated white background vector spiral circle line curve round swirl abstract shape black design sign vector rotation circular linear white symbol background curl twirl isolated radial hypnotic swoosh vortex flat arm form geometry large stroke twist angle concentric velocity arithmetic constant rotating archimedes mathematic graphic polar geometric element thin pattern effect scroll motion simple decoration art hypnosis set snail color texture whirl archimedean turnings twirling colours ornament psychedelic curvy drawing