1963 Birthday Bruce Schneier, born in America, computer security specialist, cryptographer, writer, founder, BT Counterpane, books include, 'Practical Cryptography', 'Schneier on Security' 1961 Event 1st practical sea water conversion plant - Freeport, Texas 1952 Birthday Alice Hoffman, born in New York City, New York, author, known for novel, 'Practical Magic', adapted for film 1949 Event 1st practical rectangular TV tube announced-Toledo, Oh 1934 Event Test of practical radar apparatus made by Rudolf Kuhnold in Germany 1901 Birthday Allen B DuMont, inventor, perfected coml practical cathode ray tube 1898 Event 1st practical submarine 1st submerges, New York City (for 1 hour 40 minutes) 1876 Event Daniel Stillson (Mass) patents 1st practical pipe wrench 1853 Event 1st practical fire engine (horse-drawn) in U.S. enters service 1839 Event Details of Louis Daguerre's 1st practical photographic process are released in Paris 1831 Event 1st practical U.S. coal-burning locomotive makes 1st trial run, Pennsylvania 1811 Birthday Issac Merrit Singer, inventor, 1st practical home sewing machine 1809 Event 1st practical U.S. railroad track (wooden, for horse-drawn cars), Philadelphia 1808 Event 1st practical typewriter finished by Italian Pellegrini Turri
