Set of 2 engravings are from an 18th century encyclopedia. Made Ephraim Chambers in publishing in 1786, USA.
The book is a textbook on geometric constructions and principles. The author is an expert in the field of mathematics and provides readers with a variety of methods and tools for performing accurate geometric constructions. The book covers various aspects of geometry, including the construction of lines, angles, segments, circles and other shapes. Efrem Chamber explains in detail the basic principles and techniques of constructions, and also describes how to apply geometry in practice. "Geometrical Constructions and Principles" is an indispensable resource for mathematics students, students and teachers, and for anyone interested in geometry and seeking to improve their skills in the field. The book is written in clear and accessible language, which makes it useful for a wide range of readers, regardless of skill level.
Chambers was also interested in anatomy and medicine. Born in 1680, Chambers was well educated and became one of the leading scientists of his time. He developed methods of research and analysis that were important to the progress of science. One of his most famous achievements was the creation of the British Gravity Catalog, which consisted of precise measurements of gravity in various parts of the Earth. Chambers also contributed to measuring the length of terrain and creating maps.