Christiaan Huygens, Lord of Zeelhem, FRS ( / ˈ h aɪ ɡ ən z/ HY-gənz, US: / ˈ h ɔɪ ɡ ən z/ HOY-gənz, Dutch: ⓘ also spelled Huyghens Latin: Hugenius 14 April 1629 – 8 July 1695) was a Dutch mathematician, physicist, engineer, astronomer, and inventor who is regarded as a key figure in the Scientific Revolution.
