# Green, Red, Black

This construction contains two ways of constructing the same locus, which I think is the set of points with the same distance from a parabola and its focus point, until it crosses itself, so I mean the waterdrop-shape without its continuation. This is a demonstration that once you can make loci from simple elements (like points, lines and circles), for example, conics (like ellipses, parabolas and hyperbolas), then you can also use these secondary shapes as paths to make even more complex loci like this waterdrop-shape.

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