The scientist who used a compound microscope to see chambers within cork and named them "cells" was Robert Hooke. In 1665, Hooke published a book called "Micrographia" in which he described his observations of various objects through a compound microscope, including a thin slice of cork. When he viewed the cork under the microscope, he saw a series of small, empty compartments that he likened to the individual cells in a monastery, and he called them "cells."
Hooke's observations of cork cells were a significant contribution to the development of cell theory, which states that all living things are composed of cells. His work also helped to popularize the use of microscopes in scientific research, paving the way for further discoveries in the field of biology.