I can’t travel without Sudoku. Robert Ballard… May 18, 2020 | 0 comments I can’t travel without Sudoku. — Robert Ballard Tags: Robert Ballard, American, Scientist Mini who’s who: Robert Ballard : American Scientist Born: June 30, 1942 Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website This site uses Akismet to reduce spam. Learn how your comment data is processed.