Geometric Construction 7

Construct the linkage to draw the lemniscate as thus:

Construct the linkage to draw the lemniscate as thus:

Construct the linkage to draw the lemniscate as thus:

Construct the linkage to draw the lemniscate as thus:

Construct the Peaucellier's cell.

Construct the linkage to draw the ellipse as thus:

Construct the linkage to draw the ellipse as thus:

Construct the linkage to draw the ellipse as thus:

Construct the linkage to draw the ellipse as thus:

Construct the linkage to draw the ellipse as thus:

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Construct the linkage to draw the ellipse as thus:

Construct the "triangle dance".

Construct the "rhombus dance".

Construct the linkage to draw the ellipse as thus:

Construct the linkage to draw the ellipse as thus: