Do you know the difference between insulin and insulit? Insulin is a hormone that regulates sugar in our blood. On September 7, 1978, scientists used genetic engineering to produce insulin. Insulit is a sound absorbing material. In fact, it's the first sound absorbing material to be used in buildings. It was patented on September 14, 1915. Do you like watching movies? Celluloid photographic film, which is used to make movies, was patented on September 13, 1898.
The first trans-Atlantic telephone cable system began operating on August 25, 1956. The answering machine was invented on September 27,1950.
The first FORTRAN computer program ran on September 20, 1954.
Dirigibles are hardly used these days, but when they appeared, they were the first really well-powered and controlled means of flight. The dirigible was demonstrated as such on September 24, 1852.
Have you been following all that's going on with Mars exploration? The U.S. may even be seriously considering a manned mission to Mars! The Viking II spacecraft landed on Mars on September 3, 1976, and took the first pictures of this planet's surface that day.
Remember all that we learned about dams and hydroelectricity? The world's first hydroelectric power plant was opened on September 30, 1882.
Moving on to medical firsts: Joseph Lister performed the first antiseptic surgery on September 1, 1865; the first successful surgical separation of conjoined twins was completed on September 17, 1953; and the first hearing aid, the audiophone, was invented by Richard S. Rhodes, on September 23, 1879.