Numerous inventions were developed in the 1920’s. Some are still used today, but others have become obsolete. Many modern-day household appliances, weapons, medications, and prepared food items had their basis in designs from this era. This technology contributed to economic prosperity and improved American lives in every conceivable way.
The first major invention was the commercial radio channel. In 1920, the Pittsburgh company KDKA broadcast that Warren G. Harding had won the presidential election against James M. Cox. This broadcast caused radios to increase in popularity. This improvement in radio was the only major development in sound technology; most people were working on visual transmissions at this time.
The first half-tone photograph sent in an electronic manner was transmitted by Western Union in 1921. The concept of a photograph being sent in this manner was conceived by Alexander Bain, a Scottish clockmaker, in 1843, but this was the first physical manifestation of his concept.
In the 1920s, multiple different people developed televisions. Unlike the electrical television we have today, these televisions were mechanical. The major model in America, invented by Philio Farnsworth, worked by utilizing radio transmissions and a spinning motor to display an image made of 60 horizontal lines. This model was perceived as a threat by the head of the Radio Corporation of America, and the resulting lawsuits eventually pushed its creator into committing suicide.
Another main version of the television was patented in 1929. This was Vladimir K. Zworykin’s kinescope, which was a cathode-ray tube. The storage principle it used is one of the main components of modern-day televisions.
One major development in the film industry was the talking motion picture. In movies before this, no sound was used. This changed when, in 1926, the Warner Brothers partnered with Western Electric to develop a new type of movie with sound. The sound effects, talking, and music, were recorded onto a record, which were synced with the movie in the theatre.
Throughout the 1920’s, many people felt that murderers who were sentenced to death experienced unnecessary pain before they died. The state of Nevada developed a new technique to kill persons on death row. This was the world’s first gas chamber. The first person it was tested on was Gee John, who remained alive in the chamber for six minutes before his execution was successful. It was an airtight room that was filled with cyanide gas. Only five states in America approved of death by gas chamber; it was thought that lethal injection is faster and less painful.
The first liquid-fueled rocket was fired in 1926 by Robert H. Goddard, a physics professor at Clark University. He fired the rocket at his Aunt Effie’s farm in Auburn, MA. It reached forty-one meters in height. Goddard’s invention was highly influential in all work involving sending rockets to space, leading up to the moon landing itself. Goddard...