Scientific In 1611 he published, at Venice, a scientific work entitled: , in which, according to
Isaac Newton, he was the first to develop the theory of the
rainbow by drawing attention to the fact that in each raindrop the light undergoes two refractions and an intermediate reflection. His claim to that distinction is, however, disputed in favor of
Descartes. In 1625 his work "Euripus, seu de fluxu et refluxu maris sententia" was published posthumously in Rome. It is an important source for the strange story of the theory of tides. It contains an exact but qualitative, luni-solar explanation of the phaenomena. This explanation is directly connected with the later developments.
Religious On his way to England, he published at
Heidelberg a violent attack on Rome:
Scogli del Christiano naufragio, afterwards reprinted in England. In England, he wrote a number of anti-Roman sermons: the
Papatus Romanus, issued anonymously (London, 1617; Frankfort, 1618); the
Scogli del naufragio Christiano, written in Switzerland (London, (?) 1618), of which English, French and German translations also appeared; and a Sermon preached in Italian before the king. ==Representations==