Galileo Galilei to the biography by Vincenzo Viviani) that these began by watching the swings of the bronze chandelier in the cathedral of Pisa, using his pulse as a timer. Later experiments are described in his "Two New Sciences". Galileo claimed that a simple pendulum is isochronous, i.e. that its swings always take the same amount of time, independently of the amplitude. In fact, this is only approximately true, as was discovered by Christiaan Huygens. Galileo also found that the square of the period varies directly with the length of the pendulum. Galileo's son, Vincenzo, sketched a clock based on his father's
Galileo (1975 film) Galileo (1975 film) Galileo is a 1975 biographical film about the 17th century scientist Galileo Galilei, whose astronomical observations with the newly invented telescope led to a profound conflict with the Roman Catholic Church. The film is an adaptation of Bertolt Brecht's play of the same name. The film was produced by Ely Landau for the American Film Theatre, which presented thirteen film adaptations of plays in the United States from 1973 to 1975. Brecht's play was recently called a "masterpiece" by veteran theater critic Michael Billington, as Martin Esslin had in 1960. The film's director, Joseph Losey, had also