The Copernican globe: A delayed conception

Summary

The impact on globe making of the change from a Ptolemaic to a Copernican world-view is examined. As well as showing a map of the Earth and the Heavens, the main use of globes originally was to demonstrate the natural phenomena as these are observed from a geocentric perspective. In the second half of the eighteenth century some belated attempts were made to construct so-called Copernican globes for this purpose. This late response did not stop the production and use of the common Ptolemaic globe. It is argued that the technological developments of the nineteenth century made the role of the globe as a demonstration model superfluous and thus contributed more to the downfall of the common Ptolemaic globe than did any revolution in science.