French chemist and physicist who isolated the element boron(1809) and formulated a law that explains the behavior of a gas under constant pressure.

• 盖鲁萨克，约瑟夫·路易斯1778－1850法国化学家和物理学家，析出硼元素(1809年), 并且确切陈述了解释气体在固定压力下的表现方式的定律