inventions26+p2

Inventions: 

The concept of Aerosol can date back to the 1790’s however, the first Aerosol Spray Can was invented in 1926. It was created by a Norwegian chemical engineer named Erik Rotheim in Oslo. With the invention of the can, it allowed soldiers to spray inside the tents for malaria carrying bugs during World War II. Over time the spray bottle has developed and now can you can find spray insecticides, deodorants, and paints.
 * Aerosol Spray Can--

*Liquid Fueled Rocket-- The first liquid fueled rocket was created by Robert H. Goddard. On March 16, 1926, after 17 years of experimenting and theoretical work, Goddard was able to achieve flight off of the rocket. With thanks to Goddard, the invention of the liquid fueled rocket has grown and now helps with studies in space. 

The Warner Brothers first premiered //Don Juan,// in 1926. This was the first film that had a synchronized sound track of music and audio effects. Before this invention, there would be different tracks with audio recorded on them and replayed on a large turntable. With the invention of synchronized sound tracks, America’s social structure has grown greatly in the film industry. More movies are coming out and the sound tracks are upgrading and getting even better.
 * Sound Motion Pictures--