Have you ever seen a NASA space shuttle take off into space? Does it catch your attention? Does it intrigue you? These scenes of rockets taking off would not exist if Robert Hutchings Goddard did not pioneer the first rocket. His investigations pioneered the way for modern rockets, space travel, and a whole new field in science and engineering.
At an early age, Goddard made tremendous progress toward the development of rockets. In 1908, he initiated static tests with small solid-fuel rockets. Then in 1912, he developed the theory of rocket propulsion. Impressed by these early porgresses, the Smithsonian Institution funded Goddard in his studies of liquid fuel rockets. During World War One, he developed several types of solid-fuel rockets to be used in armed weapons. Weapons Goddard developed during WWI became the primary weapons utilized during WWII, i.e. bazooka. Until his untimely death in 1945, Goddard continued to advance the study of rockets, and at the time of his death, he possessed 214 patents in rocketry.
People all over the world listen to the radio or watch televsion for pleasure or/and valuable information. However, people, nowdays, would not being enjoying the radio or the television without the radio and television transmission inventions and developments during the 1920s.
Although more people enjoy watching the television over listening to the radio, back in the Twenties, television development was still in its infant stages. As a result, people listened to their radios for enjoyment and information. Entering the nineteen-twenties, radios became extremely popular when AM station KDKA broadcasted the first regular commercial over the radio in 1920. By the end of 1922, 563 other stations would obtain licensed AM radio stations to join KDKA of Pittsburgh. How was this possible? Who was one of the pioneers?
In 1904, Ernest Alexanderson was assigned the task of building a high-frequency machine that would operate at high speeds and produce a contiuous-wave. After two years of laborious experimenting, Alexanderson successfully built a two-kilowatt, 100,000-cyle machine. Prior to Alexanderson's invention, radio was nothing but a series of dots and dashes transmitted by inefficient machines. However, with the installation of his high-frequency alternator at a Massachusetts radio station, the radio station was able to deliver voices and volin solos. However, Alexanderson would not have accomplished this if he did not have help from previous experiments.
Soon after, Alexanderson worked at both General Electric and RCA, where he worked on television and the transmission of picturs by radio. In addition to the high-frequncy alternator, Alexanderson invented a scanning disk and high-frequncy neon lamps to successfully accomplish television transmission. On June 5, 1924, he successfully transmitted the first facsimilie message across the Atlantic. Then in 1927, he staged the first reception of television at his own New York home. Many would follow Alexanderson and try to improve radio and television transmission.