17th-century French physicists

The 17th century was a pivotal time in the history of physics and science in general, marked by the beginning of the Scientific Revolution. In France, several key figures made significant contributions to the field of physics during this period: 1. **René Descartes (1596-1650)**: Often regarded as the father of modern philosophy, Descartes also made important contributions to science and mathematics.

Edme Mariotte (1620-1684) was a French physicist and priest known for his contributions to the fields of hydraulics, optics, and the study of gases. He is often credited with formulating Mariotte's Law, which states that the pressure of a gas is inversely proportional to its volume, provided the temperature remains constant. This law is a fundamental principle in the study of gases and is a key component of the ideal gas law.

Guillaume Amontons (1663–1705) was a French physicist and inventor known for his work in the field of thermodynamics and the study of friction. He is often recognized for formulating some of the earliest principles regarding the behavior of friction and for developing a rudimentary understanding of temperature and heat transfer.

Jean de Hautefeuille was a French engineer and inventor from the 17th century, known primarily for his work on early steam engines and for his contributions to the development of steam power. One of his significant achievements was the design of a steam-powered engine in 1679, which he called a "steam cannon." He is also recognized for proposing various concepts related to steam propulsion.

Pierre Ango is not a widely recognized term or figure in popular culture, history, or current events up to my last training cut-off in October 2023. It could refer to an individual, a local place, or a niche topic that is not broadly documented. If you can provide more context or specify the area (such as literature, history, geography, etc.