This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Air pump in Mathematical elements of natural philosophy . en Air pump in Mathematical elements of natural philosophy Works by John Theophilus Desaguliers found online at hps cam ac uk html Whipple Library Cambridge website John Theophilus Desaguliers other versions PDold John Theophilus Desaguliers Uploaded with Uploaded with