Fig. 4: Comparison between a seasonal cycle and the cycle of moon phases. | Nature Communications

Fig. 4: Comparison between a seasonal cycle and the cycle of moon phases.

From: Symmetry in category systems across languages

Fig. 4: Comparison between a seasonal cycle and the cycle of moon phases.

a A sinusoidal function showing how temperature varies over time. The curve shown here includes two calendar years. b A helix showing how moon-phases vary over time for a viewer in the Northern Hemisphere. The curve shown here includes two and a half lunar months, and different colors indicate different months.

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