Every time I read a book about scientists from the (late) Middle Ages or the Enlightenment, I am a little jealous: jealous of the fact that that was the moment in history where science managed to make rapid strides. In that period, thanks to the development of the telescope and microscope, man was for the first time able to fathom the unattainable distance or, on the contrary, the tiny wonders of nature.
Christiaan Huygens (1629-1695) was undoubtedly one of the leading figures of seventeenth-century science. As a mathematician, he was a pioneer in probability calculation and integral calculus. As a physicist, he was the first to declare light as a wave phenomenon. As an astronomer, he explained Saturn's appearance by explaining the position of its rings and discovered one of its moons, Titan.
A Century of Light is not so much a biography of Huygens, but rather a description of how a talented person like Huygens researched and acted within the world of seventeenth-century science. As a follower of Descartes, he worked mainly in theory (rather than through experiments) and is therefore often seen as the first theoretical physicist.
As a talented draftsman, he also managed to provide his works with good illustrations. His drawing of Saturn's rings, and its relative position to Earth, enabled him to predict the exact appearance of Saturn.
What I also found remarkable was how Huygens was able to communicate with other scientists in his day. During the same period, Huygens became the first foreigner to become a member of the Royal Society and became a member of the newly founded L'Académie des sciences in France.
In addition to all the scientific components, the book also gives a good picture of the zeitgeist. Rembrandt van Rijn comes into the picture because he was asked to make a number of paintings by the Huygens family. Other painters and well-known figures also make their appearance.
All in all, Hugh Aldersey-Williams has written an interesting book that provides a good picture of seventeenth-century science through the work of Huygens.