piece of paper

Ingredients

paper, magnetised wire loop, adhesive

Preparation Steps

Original Recipe Text

A magnetised wire loop is attached to a paper backing. Specifically, the wire loop is pasted on a piece of paper from the bottom side against the compass disc, allowing the disc to move freely on the tip of a pin (p. 67).

Evidence

"a magnetised wire loop was pasted on a piece of paper from below against the compass disc."

Remarks

This type of compass, described by Martin Cortes in 'Breve compendio de la sphera y de la arte de navegar' (Sevilla 1551), is believed to have been used by Christopher Columbus (p. 67). The text notes that this construction mirrors Indian Ocean designs where the division into 32 parts corresponds to star positions rather than standard compass card divisions (p. 67).