Salomon de Caus

Salomon de Caus (1576, Dieppe – 1626, Paris) was a French Huguenot engineer, once (falsely) credited with the development of the steam engine.

Salomon de Caus

Biography

Caus was the elder brother of Isaac de Caus. Being a Huguenot, Caus spent his life moving across Europe.

He worked as an hydraulic engineer and architect under Louis XIII. Caus also designed gardens in England, that of Somerset House among them; also, the Hortus Palatinus, or Garden of the Palatinate, in Heidelberg, Germany.

In 1615, he published a book showing a steam-driven pump similar to one developed by Giovanni Battista della Porta fourteen years earlier. Nevertheless, François Arago called him the inventor of the steam engine as a result.

In this same book, Les Raisons des forces mouvantes, Caus presents[1] a well-known just-intonation scale, now known as the Ellis Duodene, after Alexander John Ellis who reinvented it. It is to Caus that the term work is owed in the sense that it is used in the field of mechanics.[2]


De Caus received a gift of £50 from James VI and I in 1614, and had a pension of £100 from Prince Henry in 1610.[3]

Works
  • Hortus Palatinus (1620) at the University of Heidelberg
  • La Perspective avec la raison des ombres et miroirs (1611)
  • Les Raisons des forces mouvantes (1615)
gollark: As well as this one.
gollark: This can go in my list of "out of context styro quotes".
gollark: I assumed it was just a joke. And it is quite funny. But I guess it's dual-purpose.
gollark: The only message on 19 December is> 6K+ already?!?which seems pretty innocuous, so I'm assuming you're talking about the 20 December one about the (not implemented yet) restricted thing channels and will chalk this down to... time zones, or something.I'd kind of expect you to have said something in the intervening four months if this was a problem for you.
gollark: I mean, you're incoherently rambling about some rights violation and facism, so eh.

References
  1. David J. Benson, Music: a mathematical offering
  2. Dugas, Rene (1988). A History of Mechanics. Dover. p. 128.
  3. John Nichols, The Progresses Processions, and Magnificient Festivities of King James the First, vol. 3 (London, 1828), p. 77.
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