Galileo’s prank letters
Stories from Physics for 11-14 14-16
During his time in Venice, Galileo and a friend sent letters to a Jesuit priest pretending to be a rich widow with religious doubts. Galileo also wrote to a former colleague, a mathematics professor at the University of Padua, pretending to be an amateur mathematician who needed help.
References
J. Reston, Galileo: A Life, Washington, DC, Beard Books, 1994, p. 50