Taken by Gjon Mili, this sequence from a 1952 LIFE magazine shows a tiny light to revealing the patterns made by violinist Jascha Heifetz's bow. Courtesy of LIFE. Courtesy of LIFE. Courtesy of LIFE. Courtesy of LIFE.Taken by Gjon Mili, this sequence from a 1952 LIFE magazine shows a tiny light to revealing the patterns made by violinist Jascha Heifetz's bow. Courtesy of LIFE. Courtesy of LIFE. Courtesy of LIFE. Courtesy of LIFE.